Over $5000, RKI Instruments

30-0954-265-01 Aspirator Adapter, Plate Mounted, with Flow Switch/Beacon 110/IR CH4 LEL in 18-0416RK J-box by RKI Instruments

Single or dual sensor system is designed to monitor gas atmospheres from extreme conditions with either temperature or pressure challenges. A powerful air aspirator can pull a sample from up to 100 feet away. The filtered and conditioned sample gas is then passed across one or two different detectors. Each detector shares a common calibration and compressed air inlet for aspirated flow. This system is fault tolerant removing the need for expensive downtimes and maintenance. The sample is diluted with air after gas sensor then returned to a common exhaust reducing the danger of potential hazardous gases entering a safe work space.

System integrity is maintained at all times using a flow fail monitoring device which provides an NO contact that activates if the sample line becomes blocked or damaged or if the air supply is removed or interrupted.

The panel can be used with direct-connect (sensors connected to an RKI controller), or with S, S2 Series, and M2A Series transmitters. All transmitters have a 4-20 mA signal for direct connection to the site DCS, PLC or site control system. If needed, RKI instruments can supply a dedicated Gas Detection Control system to provide local alarms, 4-20 mA output with a wide range of dry contacts, making the system very sophisticated and user friendly.

Integral sample filter included to remove water and dirt, automatic drain type.

RS485 Modbus output options available on the M2A transmitter.

Features

• Simple to operate
• Long life air aspirator (no moving parts)
• Extreme sample temperatures
• One or two sensors
• Inside/outside location options
• Corrosion resistant construction for extreme environments / samples
• Uses proven RKI technology
• Modular design easy to maintain
• Self draining moisture trap
• Back flush for sample line
• NEMA 4X enclosure options (stainless steel or GRP)

Industry Applications

• Flammable, oxygen, or toxic monitoring
• Wastewater
• Drinking water plants
• Gas turbine monitoring flammable and CO
• Tunnel monitoring
• Landfill borehole analyses
• Printing press exhaust solvent recovery
• Winery CO2 / O2
• Biogas Methane
• Hydrogen Sulfide "H2S" scrubber break through

*Please note we can only ship RKI products to customers within the United States

30-0954-605-02 Aspirator Adapter in NEMA 4X Stainless Steel Housing with 65-2649RK-CH4 by RKI Instruments

Single or dual sensor system is designed to monitor gas atmospheres from extreme conditions with either temperature or pressure challenges. A powerful air aspirator can pull a sample from up to 100 feet away. The filtered and conditioned sample gas is then passed across one or two different detectors. Each detector shares a common calibration and compressed air inlet for aspirated flow. This system is fault tolerant removing the need for expensive downtimes and maintenance. The sample is diluted with air after gas sensor then returned to a common exhaust reducing the danger of potential hazardous gases entering a safe work space.

System integrity is maintained at all times using a flow fail monitoring device which provides an NO contact that activates if the sample line becomes blocked or damaged or if the air supply is removed or interrupted.

The panel can be used with direct-connect (sensors connected to an RKI controller), or with S, S2 Series, and M2A Series transmitters. All transmitters have a 4-20 mA signal for direct connection to the site DCS, PLC or site control system. If needed, RKI instruments can supply a dedicated Gas Detection Control system to provide local alarms, 4-20 mA output with a wide range of dry contacts, making the system very sophisticated and user friendly.

Integral sample filter included to remove water and dirt, automatic drain type.

RS485 Modbus output options available on the M2A transmitter.

Features

• Simple to operate
• Long life air aspirator (no moving parts)
• Extreme sample temperatures
• One or two sensors
• Inside/outside location options
• Corrosion resistant construction for extreme environments / samples
• Uses proven RKI technology
• Modular design easy to maintain
• Self draining moisture trap
• Back flush for sample line
• NEMA 4X enclosure options (stainless steel or GRP)

Industry Applications

• Flammable, oxygen, or toxic monitoring
• Wastewater
• Drinking water plants
• Gas turbine monitoring flammable and CO
• Tunnel monitoring
• Landfill borehole analyses
• Printing press exhaust solvent recovery
• Winery CO2 / O2
• Biogas Methane
• Hydrogen Sulfide "H2S" scrubber break through

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

35-3011RK-03 LEL/O2/CO/NO/CO2 (LEL/O2 Direct) 4 Point Samle Draw Detector Assembly by RKI Instruments

The 35-3000RK series is a compact sample draw detector assembly with a built-in pump that accepts a 24VDC input. This unit features a NEMA 4X enclosure making it dust, water and corrosion resistant. It also features a flowmeter with adjustable flow and a low flow alarm which warns of any obstructions or restrictions in the flow system. Combustibles, oxygen, hydrogen sulfide and carbon monoxide versions are available with or without a 4-20 mA transmitter. The 35-3000RK is also available with both LEL and oxygen sensors in one unit.

The 35-3000RK is capable of single person calibrations and remote sampling at up to 5,000 ft. from a controller, and interfacing to any RKI or third party control system (utilizing a 4-20 mA feedback signal). Multigas versions of this efficient sample draw system are available with up to four sensors, LEL, O2, H2S and CO all in one enclosure. This is a very cost effective way of monitoring for several gases that may be in the same place.

Features

• NEMA 4X enclosure
• Long life pump
• Flowmeter and LED's for operational status
• Low flow indication
• Operates on 24VDC input
• Multigas versions available with up to 4 sensor in one enclosure
• Available in LEL, O2, H2S, CO, H2, HC (ppm)
• LEL and O2 available with or without transmittter
• LEL and O2 available together in one standard compact enclosure

Industry Applications

• Petrochemical plants
• Refineries
• Water & wastewater treatment plants
• Pulp & paper mills
• Gas, telephone, & electric utilities
• Parking garages
• Manufacturing facilities
• Steel
• Automotive
• HVAC

*Please note we can only ship RKI products to customers within the United States

66-6194-10-W AirLink VOC Pro (11.7 ev PID) 0-100 ppm Sensor/Transmitter with J-box with 900 MHz Radio by RKI Instruments

The AirLink VOC Pro Series Gas Detector is a versatile assembly that uses a PID sensor to detect a variety of gases. It is wire powered (12 to 35 VDC) with wireless communication to an RKI wireless controller and also has a 4-20 mA analog and RS-485 Modbus outputs are standard. Magnetic switches allow for non-intrusive calibration while in the field as well as full system settings and diagnostics.

Features

• PID sensor options: 10.0 eV lamp / 11.7 eV / 10.6 eV ppb / 10.6 eV ppm
• Wired power (3-Wire), 12 to 35 VDC operating voltage
• Output options: Wireless 900 MHz, or 2.4 GHz; 4-20mA (3-wire) analog; RS-485 modbus (4 wire)
• Operating temperature range -40°C to +54°C
• Graphical LCD with LED backlight
• 3 Push-button interface (ADD, MENU, SUB) with corresponding magnetic, non-intrusive switches
• 2 Individually configurable alarms
• 2 Front panel LED indicators (amber and red)
• 2 Optional fully programmable alarm relays (dry contacts)
• 1-Year warranty (see specifications)

Industry Applications

• Petrochemical plants, Refineries
• Water & wastewater treatment plants
• Pulp & paper mills
• Manufacturing facilities
• Chemical plants

*Please note we can only ship RKI products to customers within the United States

66-6994-10-W AirLink 6900 Wireless Explosion Proof Transmitter, VOC (11.7 eV PID) 0-100 ppm, dual battery, 900 MHz radio by RKI Instruments

The RKI AirLink 6900 is a versatile truly wire free transmitter using electrochemical, PID or low-power infrared sensor elements to detect a variety of gases. Wireless, dual battery power (3.6 V Lithium-Thionyl Chloride battery) with 900 MHZ or 2.4 GHz radio options. Magnetic switches allow for non-intrusive calibration as well as full system settings and diagnostics, while in the field.

Features

• Electrochemical, PID, or IR sensors available
• Wireless communication: 900 MHz radio and 52 networks; 2.4 GHz radio and 78 networks
• Dual battery powered
• Battery life: 2-year maximum - electrochemical sensors; 1-year maximum low-power infrared sensors
• Graphical LCD with LED backlight, readable in sunlight
• 3 Push-button interface (ADD, MENU, SUB) with corresponding magnetic, non-intrusive switches
• Explosion/flame-proof certification for select gases
• 1-Year warranty
• Optional remote-mount sensor kit with enclosure

Industry Applications

• Petrochemical plants, refineries
• Water & wastewater treatment plants
• Pulp & paper mills
• Manufacturing facilities
• Chemical plants
• Construction
• Temporary or permanent applications

*Please note we can only ship RKI products to customers within the United States

72-2104A-HLR-02 Beacon 410A Four Channel Wall Mount Controller, Basic Unit, Horn/Strobe, 2 LEL/2 H2S Detectors without Cables (spec. on order), with AC Cord by RKI Instruments

The Beacon 410A is a highly configurable, microprocessor-based, flexible and easy to use 4 channel gas monitoring controller. It simultaneously displays the gas type, readings, and status for four channels of gas detection. It can monitor any combination of direct connect sensors (LEL, O2, CO2, and toxic gas sensors), as well as any 4-20mA transmitter.

Each channel has up to three fully configurable alarm points. A built-in silenceable audible alarm alerts you to alarm conditions. Each channel also has two dedicated fully configurable relays and there is a bank of common relays as well. The common relays can optionally be configured as additional relays allowing up to 3 alarm relays per channel. Each channel provides a 4-20mA output signal. A digital Modbus interface for remote logging of data via a Modbus network is standard. A Min-Max feature retains high & low peak readings for review at any time.

A fully configurable, high visibility strobe is available as an option. The unit can be powered from 115/220 VAC, or an external 24 VDC source. A trickle charging battery backup feature with battery assembly is also available as an option.

All features and functions of the Beacon 410A are controlled by easy to use menus on the OLED display. All features including form-C relay contacts of the Beacon 410A are built into the unit so you never need to purchase or maintain any "add-on" cards or components.

Features

• Simultaneously control up to 4 gas monitoring channels
• OLED display of all 4 channels
• LEL / O2 / CO2 / toxic direct connect sensors
• Accepts any 4-20 mA transmitter, 2 or 3 wire
• Up to 3 programmable alarm levels per channel
• Up to 3 configurable alarm relays per channel
• 4-20 mA analog & Modbus digital output standard
• 115 / 220 VAC or 24 VDC operation
• Audible alarm with silence feature
• RFI / EMI Resistant
• Alarm reset switch
• Built in trouble alarm with relay
• Weather and corrosion resistant NEMA 4X enclosure

Industry Applications

• Petrochemical plants
• Refineries
• Water & wastewater treatment plants
• Pulp & paper mills
• Gas, telephone, & electric utilities
• Parking garages
• Manufacturing facilities
• Steel

*Please note we can only ship RKI products to customers within the United States

72-2104A-HLR-03 Beacon 410A Four Channel Wall Mount Controller, Basic Unit, Horn/Strobe on top, 2 LEL/2 H2S det without Cables (spec. on order), with AC Cord by RKI Instruments

The Beacon 410A is a highly configurable, microprocessor-based, flexible and easy to use 4 channel gas monitoring controller. It simultaneously displays the gas type, readings, and status for four channels of gas detection. It can monitor any combination of direct connect sensors (LEL, O2, CO2, and toxic gas sensors), as well as any 4-20mA transmitter.

Each channel has up to three fully configurable alarm points. A built-in silenceable audible alarm alerts you to alarm conditions. Each channel also has two dedicated fully configurable relays and there is a bank of common relays as well. The common relays can optionally be configured as additional relays allowing up to 3 alarm relays per channel. Each channel provides a 4-20mA output signal. A digital Modbus interface for remote logging of data via a Modbus network is standard. A Min-Max feature retains high & low peak readings for review at any time.

A fully configurable, high visibility strobe is available as an option. The unit can be powered from 115/220 VAC, or an external 24 VDC source. A trickle charging battery backup feature with battery assembly is also available as an option.

All features and functions of the Beacon 410A are controlled by easy to use menus on the OLED display. All features including form-C relay contacts of the Beacon 410A are built into the unit so you never need to purchase or maintain any "add-on" cards or components.

Features

• Simultaneously control up to 4 gas monitoring channels
• OLED display of all 4 channels
• LEL / O2 / CO2 / toxic direct connect sensors
• Accepts any 4-20 mA transmitter, 2 or 3 wire
• Up to 3 programmable alarm levels per channel
• Up to 3 configurable alarm relays per channel
• 4-20 mA analog & Modbus digital output standard
• 115 / 220 VAC or 24 VDC operation
• Audible alarm with silence feature
• RFI / EMI Resistant
• Alarm reset switch
• Built in trouble alarm with relay
• Weather and corrosion resistant NEMA 4X enclosure

Industry Applications

• Petrochemical plants
• Refineries
• Water & wastewater treatment plants
• Pulp & paper mills
• Gas, telephone, & electric utilities
• Parking garages
• Manufacturing facilities
• Steel

*Please note we can only ship RKI products to customers within the United States

72-2104A-HR-03 Beacon 410A Four Channel Wall Mount Controller, Basic Unit with 12 VDC Operation & Horn/Strobe, 4 H2S Sensors on 150 ft Cables by RKI Instruments

The Beacon 410A is a highly configurable, microprocessor-based, flexible and easy to use 4 channel gas monitoring controller. It simultaneously displays the gas type, readings, and status for four channels of gas detection. It can monitor any combination of direct connect sensors (LEL, O2, CO2, and toxic gas sensors), as well as any 4-20mA transmitter.

Each channel has up to three fully configurable alarm points. A built-in silenceable audible alarm alerts you to alarm conditions. Each channel also has two dedicated fully configurable relays and there is a bank of common relays as well. The common relays can optionally be configured as additional relays allowing up to 3 alarm relays per channel. Each channel provides a 4-20mA output signal. A digital Modbus interface for remote logging of data via a Modbus network is standard. A Min-Max feature retains high & low peak readings for review at any time.

A fully configurable, high visibility strobe is available as an option. The unit can be powered from 115/220 VAC, or an external 24 VDC source. A trickle charging battery backup feature with battery assembly is also available as an option.

All features and functions of the Beacon 410A are controlled by easy to use menus on the OLED display. All features including form-C relay contacts of the Beacon 410A are built into the unit so you never need to purchase or maintain any "add-on" cards or components.

Features

• Simultaneously control up to 4 gas monitoring channels
• OLED display of all 4 channels
• LEL / O2 / CO2 / toxic direct connect sensors
• Accepts any 4-20 mA transmitter, 2 or 3 wire
• Up to 3 programmable alarm levels per channel
• Up to 3 configurable alarm relays per channel
• 4-20 mA analog & Modbus digital output standard
• 115 / 220 VAC or 24 VDC operation
• Audible alarm with silence feature
• RFI / EMI Resistant
• Alarm reset switch
• Built in trouble alarm with relay
• Weather and corrosion resistant NEMA 4X enclosure

Industry Applications

• Petrochemical plants
• Refineries
• Water & wastewater treatment plants
• Pulp & paper mills
• Gas, telephone, & electric utilities
• Parking garages
• Manufacturing facilities
• Steel

*Please note we can only ship RKI products to customers within the United States

72-2120-101 Digester Gas Monitor, 100% Volume CH4 by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-102 Digester Gas Monitor, 25% Volume O2 by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-103 Digester Gas Monitor, 1,000 ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-103-3K Digester Gas Monitor, 3000 ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-103-5K Digester Gas Monitor, 5000ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-104 Digester Gas Monitor, 50% Volume CO2 by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-201 Digester Gas Monitor, 100% Volume CH4/25% Volume O2 by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-202 Digester Gas Monitor, 100% Volume CH4/1,000 ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-202-3K Digester Gas Monitor, 100% volume CH4/3000ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-203 Digester Gas Monitor, 100% Volume CH4/50% Volume CO2 by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-204 Digester Gas Monitor, 25% Volume O2/1,000 ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-205 Digester Gas Monitor, 25% Volume O2/50% Volume CO2 by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-301 Digester Gas Monitor, 100% Volume CH4/25% Volume O2/1,000 ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-303 Digester Gas Monitor, 100% Volume CH4/50% Volume CO2/1,000 ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States

72-2120-303-3K Digester Gas Monitor, 100% volume CH4/50% volume CO2/3000ppm H2S by RKI Instruments

RKI is proud to introduce our Digester Gas Monitor. Gas from waste digesters contains high levels of methane, CO2, and H2S, with little to no oxygen present. The RKI gas monitor checks for all these gases on a cyclic basis. A powerful air aspirator draws a sample from up to 100 feet away. Since digester gas contains high humidity and high H2S, both of which can cause damage to sampling systems, the RKI Digester Gas Monitor is designed to handle these with no damage to the sampling system or sensors. The sample is passed through a series of dirt, dust, and moisture stopping filters, and these filters are automatically purged with fresh air at the end of each cycle.

Measurement time is just 4 minutes, taken at periodic cycles. Cycle time is selectable, with settings for cycle time of 15 minute, 1 hour, 4 hours, 8 hours, or 24 hours. A cycle can also be initiated anytime by pressing a button. After each cycle, the sensors and sampling system are flushed with fresh air so as to minimize corrosion caused by the high H2S content. The system is fault tolerant minimizing the possibility of expensive repairs or downtime.

System integrity is maintained at all times using a flow fail monitoring device which provides a fail alarm and relay if there is ever a problem with the flow system, such as a blockage, or if the air aspirator compressed air supply is removed or interrupted.

The system is housed in a wall mounting NEMA 4X enclosure. The gas readings can be viewed through the enclosure door clear window. Flow meters and filters are easily visible for confirmation of correct flows and operation. The RKI Digester Gas Monitor contains adjustable alarm levels for each gas, and also programmable alarm relays. In addition, the unit provides 4-20mA signals for each gas concentration for connection to an external DCS, PLC, or other site control system. A Modbus output is also available. The outputs are the readings received from the last cycle taken.

Features:

• Corrosion resistant design; Housing designed for extreme environments; Internal construction for extreme samples; Flow system designed to handle corrosive wet samples
• Sample system designed to handle high humidity
• Accurately measures gases with high levels of H2S present
• 100 ft. sample range
• Up to 4 sensors: Methane 0-100% Volume; CO2 0-50% Volume; Oxygen 0-25% Volume; H2S 0-1000 PPM (0-3000 or 0-5000 optional)
• Self draining moisture trap
• Automatic backflush of sampling system
• Long life air aspirator (no moving parts)
• Suitable for inside/outside installations
• NEMA 4X enclosure
• Uses proven RKI technology
• Modular design easy to maintain
• Simple to operate

Industry Applications:

• Wastewater Treatment Digesters
• Biogas Methane
• Animal Farms

*Please note we can only ship RKI products to customers within the United States