$750 - $1000, Bacharach

6300-4031 MGS-150 Gas Transmitter, NH3: 0 - 500 ppm, IP66 Housing w/Remote Sensor by Bacharach

MGS-150 Series Gas Transmitter is a feature-rich gas detection system with a wide range of sensor options to provide real-time monitoring of refrigerant, combustible, and toxic gases. It comes standard with user-selectable analog and digital outputs that can be set for 4-20 mA, 0-5V, 1-5V, 0-10V, or 2-10V; allowing them to connect directly to most BMS, SCADA or control systems. Alarm indicators include an onboard alarm LED and audible buzzer, in addition to an alarm relay for connection to external audible/visual alarms or a BMS system. The product's alarm threshold value is pre-set to factory defaults but is also field programmable. A variety of housing options are available (shown below), from standard IP41 enclosures to IP66 water resistant housings, which allow the MGS-150 Series gas sensors to be placed in the toughest of conditions.

Ideal for Commercial and Industrial Refrigeration, Food Storage and Food Processing Facilities, Supermarkets, Parking Garages, Wastewater Treatment Facilities, Hospitals and Universities.

Features & Benefits:

• Infrared, semiconductor and electrochemical sensor options to meet almost any gas detection need - at the most affordable cost.
• User-selectable analog outputs: 4-20 mA, 0-5V, 0-10V, 1-5V, 2-10V featuring 12/24 VAC/VDC operation.
• Fast-response sensors detect leaks quickly, which protect personnel and minimize refrigerant gas usage and environmental impact.
• Long-life semiconductor sensors for detection of all refrigerants, ammonia, halocarbons, combustible gases & VOCs.
• Robust design and remote sensor options allow units to be placed directly in areas where detection is needed.
• Available in a variety of housings, including IP66 and duct mount, for placement in the toughest of environments.

5918-0300 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, O2 Sensor w/ Pre-wired Supply by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

5918-0100 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, CO Sensor w/ Pre-wired Supply by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

5912-0300 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, O2 Sensor w/Display by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

5911-0400 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, NO2 Sensor by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

5911-0900 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, SO2 Sensor by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

6500-2101 MGS-350 Gas Detector, R134a 0-1,000 ppm IP66 Housing by Bacharach

Bacharach's MGS-350 Series Gas Transmitter is a feature-rich gas detection system with a wide range of sensor options to provide real-time monitoring of refrigerant, combustible, TVOC and toxic gases. It comes standard with analog and digital outputs including 4-20 mA, 0-5V, 0-10V and Serial Data, allowing them to connect directly to most BMS, SCADA or control systems. An onboard visual LED alarm indicator alerts area personnel when levels have exceeded the desired limit. The MGS-350 also features alarm relays (high and low) for connection to external audible/visual alarms or a BMS or BAS system.

MGS-350 Gas Transmitters, combined with the MGS Controller, can provide facility owners with a customized and complete low-cost gas-detection system. A variety of housing options are available (shown below), from standard to water resistant enclosures, which allow the MGS-350 units to be placed in many environments.

Features & Benefits:

• Detects refrigerants (CFCs, HFCs, HCFCs), TVOCs, combustible gases/hydrocarbons, O2, NH3, CO, H2S, H2, NO, NO2, SO2, Cl2, and O3
• Long-lasting infrared, semiconductor, catalytic bead and electrochemical sensor options for effective leak detection - at the most affordable cost.
• Precalibrated replacement sensors for easy maintenance
• Integrated visual LED alarm
• Two onboard alarm relays (low and high)
• Multiple housing options available, including IP 66 and duct mount, for placement in diverse environments.
• Analog outputs: 4-20 mA, 0-5V, 0-10V, featuring 12/24 VAC / 12-30VDC operation

5911-0600 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, NO Sensor by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

5942-0130 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, CO & Remote Combustible with Display by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

5922-0031 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, Remote MOS Refrigerant Sensor w/Display by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

6500-2021 MGS-350 Gas Detector, H2 0-20,000 ppm IP66 Housing by Bacharach

Bacharach's MGS-350 Series Gas Transmitter is a feature-rich gas detection system with a wide range of sensor options to provide real-time monitoring of refrigerant, combustible, TVOC and toxic gases. It comes standard with analog and digital outputs including 4-20 mA, 0-5V, 0-10V and Serial Data, allowing them to connect directly to most BMS, SCADA or control systems. An onboard visual LED alarm indicator alerts area personnel when levels have exceeded the desired limit. The MGS-350 also features alarm relays (high and low) for connection to external audible/visual alarms or a BMS or BAS system.

MGS-350 Gas Transmitters, combined with the MGS Controller, can provide facility owners with a customized and complete low-cost gas-detection system. A variety of housing options are available (shown below), from standard to water resistant enclosures, which allow the MGS-350 units to be placed in many environments.

Features & Benefits:

• Detects refrigerants (CFCs, HFCs, HCFCs), TVOCs, combustible gases/hydrocarbons, O2, NH3, CO, H2S, H2, NO, NO2, SO2, Cl2, and O3
• Long-lasting infrared, semiconductor, catalytic bead and electrochemical sensor options for effective leak detection - at the most affordable cost.
• Precalibrated replacement sensors for easy maintenance
• Integrated visual LED alarm
• Two onboard alarm relays (low and high)
• Multiple housing options available, including IP 66 and duct mount, for placement in diverse environments.
• Analog outputs: 4-20 mA, 0-5V, 0-10V, featuring 12/24 VAC / 12-30VDC operation

6500-2121 MGS-350 Gas Detector, VOC 0-2,000 IP66 Housing by Bacharach

Bacharach's MGS-350 Series Gas Transmitter is a feature-rich gas detection system with a wide range of sensor options to provide real-time monitoring of refrigerant, combustible, TVOC and toxic gases. It comes standard with analog and digital outputs including 4-20 mA, 0-5V, 0-10V and Serial Data, allowing them to connect directly to most BMS, SCADA or control systems. An onboard visual LED alarm indicator alerts area personnel when levels have exceeded the desired limit. The MGS-350 also features alarm relays (high and low) for connection to external audible/visual alarms or a BMS or BAS system.

MGS-350 Gas Transmitters, combined with the MGS Controller, can provide facility owners with a customized and complete low-cost gas-detection system. A variety of housing options are available (shown below), from standard to water resistant enclosures, which allow the MGS-350 units to be placed in many environments.

Features & Benefits:

• Detects refrigerants (CFCs, HFCs, HCFCs), TVOCs, combustible gases/hydrocarbons, O2, NH3, CO, H2S, H2, NO, NO2, SO2, Cl2, and O3
• Long-lasting infrared, semiconductor, catalytic bead and electrochemical sensor options for effective leak detection - at the most affordable cost.
• Precalibrated replacement sensors for easy maintenance
• Integrated visual LED alarm
• Two onboard alarm relays (low and high)
• Multiple housing options available, including IP 66 and duct mount, for placement in diverse environments.
• Analog outputs: 4-20 mA, 0-5V, 0-10V, featuring 12/24 VAC / 12-30VDC operation

5921-0032 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, Remote MOS TVOC Sensor by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

6500-2018 MGS-350 Gas Detector, CO (parking garage) IP66 Housing by Bacharach

Bacharach's MGS-350 Series Gas Transmitter is a feature-rich gas detection system with a wide range of sensor options to provide real-time monitoring of refrigerant, combustible, TVOC and toxic gases. It comes standard with analog and digital outputs including 4-20 mA, 0-5V, 0-10V and Serial Data, allowing them to connect directly to most BMS, SCADA or control systems. An onboard visual LED alarm indicator alerts area personnel when levels have exceeded the desired limit. The MGS-350 also features alarm relays (high and low) for connection to external audible/visual alarms or a BMS or BAS system.

MGS-350 Gas Transmitters, combined with the MGS Controller, can provide facility owners with a customized and complete low-cost gas-detection system. A variety of housing options are available (shown below), from standard to water resistant enclosures, which allow the MGS-350 units to be placed in many environments.

Features & Benefits:

• Detects refrigerants (CFCs, HFCs, HCFCs), TVOCs, combustible gases/hydrocarbons, O2, NH3, CO, H2S, H2, NO, NO2, SO2, Cl2, and O3
• Long-lasting infrared, semiconductor, catalytic bead and electrochemical sensor options for effective leak detection - at the most affordable cost.
• Precalibrated replacement sensors for easy maintenance
• Integrated visual LED alarm
• Two onboard alarm relays (low and high)
• Multiple housing options available, including IP 66 and duct mount, for placement in diverse environments.
• Analog outputs: 4-20 mA, 0-5V, 0-10V, featuring 12/24 VAC / 12-30VDC operation

5927-0032 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, Remote MOS TVOC Sensor w/ Pre-wired Supply by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

5922-0030 GDC-350 Gas Sensor Monitor, NEMA 1 Housing, Remote MOS Combustible Sensor w/Display by Bacharach

Bacharach's all new GDC-350 full-featured fixed gas monitors provide superior operation - standalone or as part of a larger system utilizing the standard analog outputs. This state-of-the-art instrument can detect a wide range of gases including carbon monoxide (CO), oxygen (O2), combustible gases, refrigerants and total volatile organic compounds (TVOCs). The GDC-350 provides a unique two sensor interface, allowing for multiple gases to be detected with onboard or remote sensors. Sensors can be located integral to the unit or remotely allowing for sensors to be placed directly in areas where potential leaks can occur. Bacharach s proprietary calibration algorithms extend the amount of time required between calibrations, reducing maintenance costs and lowering the overall cost of ownership for non-critical applications.

The GDC-350 has all the features and functionality for any application. LED alarm indicators visually indicate when alarm conditions are met and an audible alarm alerts nearby personnel. An onboard alpha numeric display shows gas readings in real time for each sensor. Integral dry contact relays are available to drive external audible / visual alarms, activate fans, or connect to building management and control systems. Installation and maintenance is simple and easy, reducing overall system cost. A pre-wired plug-in option is available for out-of-the-box operation. Simply plug the unit into any standard AC outlet for immediate detection and protection.

5201-2001 GDC-150 Gas Sensor Transmitter, NEMA 4 Housing, CO Sensor by Bacharach

The all new GDC-150 transmitter from Bacharach offers detection and protection for a wide range of hazards including toxic gases such as carbon monoxide (CO), oxygen depletion, combustible gases, refrigerant leaks and total volatile organic compounds (TVOCs). Analog interfaces allow the transmitter to be connected back to Bacharach's GDA Series of controllers (or any other gas detection controller), building management systems or control systems. The GDC-150 features 4-20 mA or 0-10 VDC linear output signals, an automatic thermal resetting fuse, RoHS compliant circuit boards and LED indicators for power and open loop.

The onboard alarm LED's indicate when alarm threshold values are exceeded. The unit can be ordered with an optional alpha numeric LED display that shows gas concentrations in real time while alarm relays alert personnel of potential dangers, avoiding incidents and potential hazards.

The GDC-150 is packaged in a rugged, polycarbonate housing for both indoor and outdoor applications. When leaks occur, the GDC-150 sensors respond quickly and accurately to protect people and property. Automated calibration and simple maintenance procedures performed in the field allow for continuous operation and assurance that areas are monitored and protected at all times.

6500-7023 MGS-350 Gas Detector, LPG/Propane 0-100% LEL PRV Remote with IP66 Housing by Bacharach

Bacharach's MGS-350 Series Gas Transmitter is a feature-rich gas detection system with a wide range of sensor options to provide real-time monitoring of refrigerant, combustible, TVOC and toxic gases. It comes standard with analog and digital outputs including 4-20 mA, 0-5V, 0-10V and Serial Data, allowing them to connect directly to most BMS, SCADA or control systems. An onboard visual LED alarm indicator alerts area personnel when levels have exceeded the desired limit. The MGS-350 also features alarm relays (high and low) for connection to external audible/visual alarms or a BMS or BAS system.

MGS-350 Gas Transmitters, combined with the MGS Controller, can provide facility owners with a customized and complete low-cost gas-detection system. A variety of housing options are available (shown below), from standard to water resistant enclosures, which allow the MGS-350 units to be placed in many environments.

Features & Benefits:

• Detects refrigerants (CFCs, HFCs, HCFCs), TVOCs, combustible gases/hydrocarbons, O2, NH3, CO, H2S, H2, NO, NO2, SO2, Cl2, and O3
• Long-lasting infrared, semiconductor, catalytic bead and electrochemical sensor options for effective leak detection - at the most affordable cost.
• Precalibrated replacement sensors for easy maintenance
• Integrated visual LED alarm
• Two onboard alarm relays (low and high)
• Multiple housing options available, including IP 66 and duct mount, for placement in diverse environments.
• Analog outputs: 4-20 mA, 0-5V, 0-10V, featuring 12/24 VAC / 12-30VDC operation