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Part Number: 66L-98-50

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

72-2110RK-01 Beacon 110 Single Channel Wall Mount Controller with Battery Charger (No Sensor or Back-Up Battery) by RKI Instruments

RKI Instruments make a wide variety of gas detection and atmospheric monitoring products. With a mission to provide products for optimal workplace safety, the Research and Development team at RKI utilizes state of the art technology to design and develop gas monitoring devices that are reliable and dependable for everyday use. Using the latest gas detection cell technology, the sensors used in RKI Instruments products lead the industry in reliability and design efficiency. The Single Channel Wall Mount Controller Beacon 110 Model is one of the latest products from RKI Instruments to meet workplace gas safety needs.

Single Channel Wall Mount Controller Beacon 110 Model

The Single Channel Wall Mount Controller Beacon 110 Model is a low cost versatile gas detection solution. The compact weatherproof enclosure protects the controller from potentially dangerous environmental hazards and is proven to be durable in harsh working conditions. The powerful device is a simple one point gas detection system is capable of accepting RKI Instruments' sensors for LEL combustible gas, oxygen, carbon dioxide, and toxic gases. The unit is user friendly with 3 internal push buttons for setup, programming, and calibration, and 1 external push button for alarm reset.

User Friendly Features

The Single Channel Wall Mount Controller Beacon 110 Model features a space efficient weatherproof wall mounting fiberglass NEMA 4X enclosure with a hinged cover that is also chemical resistant. The model is shipped with an easy to install wall mounting kit. The Beacon 110 long life gas sensors will typically last for over 2 years. The model has a built in audible alarm of over 94 dB, a visual alert system with 4 flashing LED lights, and 2 programmable alarm levels. e 10 amp rated relay contacts allow users to directly control the audible alarm system. Additionally, the backlit display will read the gas types and concentrations. The alarms are designed to activate when it detects potential environmental hazards and when the unit may be malfunctioning. Additionally, the backlit alphanumeric display is designed with user needs in mind, and the easy to read display allows for users to read the atmospheric conditions concentrations in dark environments.

Specifications

The Beacon 110 Model is appropriately sized for wall mounting conditions with dimensions of 8.5 H x 7.0 W x 4.3 D. The unit also accepts any 4-20 mA transmitter (2 or 3 wire, 24 VAC ) with a wiring distance up to 8,000 feet. The RKI Instruments Single Channel Wall Mount Controller Beacon 110 Model comes is standard with a one year warranty for materials and craftsmanship.

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

Part Number: 116L-489E

94112-A 1.25" Erect Image 45° Diagonal by Celestron

Did you know that most telescopes work well for daytime viewing as well as for astronomy? If you have a refractor or a catadioptric telescope (the Schmidt-Cassegrain is the most popular example), and you would like to use it for terrestrial observations, the most useful additional accessory you can buy is an erect-image diagonal.

If you look through your telescope with the standard mirror or star diagonal installed, you will notice that objects may be either upside down, flipped so that you see a mirror image, or a combination of the two. This is fine for observations of celestial objects, but it can be a little confusing when you are trying to track a boat as it moves through the water, or an eagle as he flies towards his perch.

Luckily, this is an easy problem to correct. Simply remove the standard diagonal from the telescope's focuser or visual back, and install the Celestron 45° Erect Image Diagonal. Now, when you insert an eyepiece, objects will be right side up and left-to-right correct. The 45° angle of this Amici prism diagonal is very comfortable for daytime observations, where the telescope is often in a horizontal position.

Please Note: Adding an erect-image diagonal to a Newtonian reflector will not result in images that are right side up and left-to-right correct. The optical design of a Newtonian will always produce images that are rotationally off in orientation. This does not mean that you can't use a Newtonian reflector during the day, it just means that you have to get used to objects oriented in unrealistic positions.

• A great accessory for daytime terrestrial viewing with your telescope.
• This 1.25" diagonal produces right side up and left-to-right correct images when used with refractors and catadioptric (Schmidt-Cassegrain) telescopes.
• Inserts into 1.25" focusers or visual backs. Accepts standard 1.25" eyepieces.

G450M-11440 G450 Multi-Gas Detector, CH4, O2, CO, H2S - Instrument Only (MSHA approved version), Flashlight rechargeable with single charger by GfG

GfG is one of the industry's leading producers of workplace safety products. Their products are safe, reliable, and customizable. Their state of the art research and development facility produces the most advanced products on the market. Additionally, their dedicated team of safety professionals works to ensure that each product can be equipped with customization tools and modifications to ensure that each product can be optimized to meet the most rigorous workplace safety standards. Introducing the G450 Multi-gas Detector, GfG is continuing its legacy as a safety leader.

G450 Multi-gas Detector

The G450 Multi-gas Detector continually measures up to four separate atmospheric gases. In confined spaces, the detector will monitor LEL combustible gas, oxygen, H2S, and CO. The easy to use G450 series of detectors is designed with user friendliness in mind. Many of its most common functions are operated with a single button, and the unit features a fully automatic calibration system. Users need only to attach the adaptor and flow gas to the sensors. The unit's GfG AutoCal system will automatically initiate the calibration sequence and will update the necessary information on the G450 Multi-gas Detector.

Long Battery Life

The G450 Multi-gas Detector also features a long life battery operation that is most efficient for workplace safety. The device has a batter life of up to 25 hours of continuous operation. With alkaline packs, the units are powered by 2 AA batteries, and when placed in the drop in cradle, the rechargeable battery packs can be fully recharged in less than 4 hours. The rechargeable packs have optional flash light LEDs to indicate charge level.

Triple Alarm System

This unit features an elaborate alarm system that is not to be missed. The triple alarm system features a loud audible alarm of 103dB, a vibrating alarm, and bright 360 wrap around LEDs with a colored backlit display for visual alarms. The alarm system ensures that users and those nearby are fully aware of possible environmental hazards. Additionally, the easy to read backlit display will light varying colors from green, orange, and red to intuitively notify users of the severity of the conditions.

Features

The G450 Multi-gas Detector is encased in a dust proof and highly water resistant housing. The housing even contains a built in rubber boot to help protect from regular wear and tear. Each unit is equipped with datalogging capabilities. The datalogger records and internally stores all activity and environmental conditions. Users can download this information to their computers and use it to research, analyze, and evaluate the jobsite environment.

The multi-gas detection system comes standard with a few accessories including a calibration adaptor, a training manual, and a training DVD. The rechargeable devices include the previous accessories and additional drop in cradle chargers and a wall power adaptor. Optional accessories include a datalogging kit, self powered attachable motorized sample pump, spare battery packs, and rechargeable battery packs. The breadth of available accessories helps to ensure that the G450 Multi-gas Detector can be customized to meet the needs of individual work spaces.

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

WD-00652-50 Traceable® Conductivity and TDS Standard, Individually-Tested, 1413 μS; 500 mL by Oakton

• Oakton® Traceable® conductivity and TDS standards have detailed labels: KCl, NaCl, and 442 conversions, temperature corrections, and certified values referenced to 25°C-convenient!!
• Average accuracy at 25°C is ±0.25 microsiemens for 1, 5, 10 microsiemen (μS) solutions, or ±0.25% for all other solutions. The tested uncertainty is shown on the certificate, whichever is greater
• Conductivity options range from 1 to 200,000 μS/cm
• Individually-tested solutions are certified by the bottle - each bottle is analyzed for the best accuracy

METHODS SUPPORTED

Certified reference material meets test requirements for Federal, State, and local agencies, CAP, ASTM, NCCLS, CLSI, ACS, CLIA, AOAC, EPA, APHA, AWWA, WEF, USGS, USP, and ISO. Traceable® Conductivity Standards complies with and is essential for use in these official methods: AOAC 973.40, EPA 120.1, Standard Method 2510 (APHA, AWWA, WEF), ISO 7888, DIN 38404, ASTM D1125, USGS I-1780, USP 645, and for A2LA/NVLAP accreditations/ISO 9000 certifications. Material may be used to calibrate all conductivity meters and to determine all conductivity cell constants.

A2LA ACCREDITATION ISO/IEC 17025:2005 (1750.01)

To assure accuracy an individually serial-numbered Traceable® Certificate is supplied to indicate traceability to standards provided by NIST (National Institute of Standards and Technology) and/or a National Standards Laboratory. A2LA accredited certification provides the highest achievable level of quality assurance, documentation, and accuracy. Conductivity Standards are produced in an A2LA accredited ISO/IEC 17025:2005 (1750.01) calibration laboratory. Additional certifications include ISO 31 (certificate content) and ISO 35 (statistical analysis), plus ISO 9001 (certified quality manufacturer).

• All Oakton® Traceable® conductivity standards are NIST-traceable reference materials
• Supplied with a calibration report from an ISO 17034 and ISO 17025 accredited laboratory
• These standard solutions let you calibrate conductivity instruments to ensure accuracy
• If unopened, shelf life is one year; once opened, shelf life will vary by solution value
• Use when readings are expected to be around 1413 μS/cm

INCLUDES

temperature compensation chart, TDS conversion chart, and NIST-traceable calibration certificate with data.

2901-99-005 IR 29 Di Gas Transmitter with Display, with Pressure and Humidity Compensation, IP67, Ethanol (C₂H₆O), 0 - 100% LEL Range by GfG

Measuring Principle

IR transmitters have become recognized as reliable gas warning systems for explosion protection. They are used to detect individual combustible gases or a wide range of gases. This involves sending an IR beam with a certain light intensity through a measuring space and then capturing it with a detector. Parts of this beam are absorbed by, amongst other things, hydrocarbon molecules. The reduced light intensity of the beam is registered by beam detectors and converted into a signal as the existing % LEL gas concentration.

Benefits

A special feature of our IR technology is its ability to also measure combustible gases above the lower explosion limit. Moreover, the measurement does not require oxygen.

With this technology there is basically no risk of contaminating the sensor, through silicone vapors or hydrogen sulfide, when using catalytic combustion sensors.

Operation

IR transmitters are usually used with 2 wavelengths, a so-called reference wavelength and just one measuring wavelength. Strict limits are applied to these systems. The absorption spectra of many hydrocarbons are located in the wavelength range of 3.3 μm and overlap to a large extent.

This means that gases with overlapping spectra and just one measuring wavelength can no longer be clearly distinguished. Some hydrocarbons, e.g. the frequently used welding gas acetylene, are non-absorbing in the wavelength range of 3.3 μm, but absorb instead in neighboring wavelength ranges.

In many practical applications, it is not essentially important which gas is responsible for the explosion risk. Therefore, early warnings through the broadband measurement of hydrocarbons in order to monitor the lower explosion limit (LEL) must be guaranteed. False alarms with uncritical concentrations of individual gases or solvents are thus absolutely unacceptable.

These requirements are problems for systems with 2 wavelengths.

Patented GfG Technology

The internationally patented technology of the IR 29 has been developed to solve these problems. The gold-plated mirror optics of the sensor contains 2 radiators and up to 4 detector elements with different optical filters. The precisely calculated, microstructured and pure gold coated mirror optics of the IR 29 are supplied for the first time without beam splitters.

This helps to cut signal losses by 50 % and to completely avoid the physically-related disadvantages of a beam splitter. The measured values from two additional wavelengths (4 wavelengths in total) ensure improved detection of individual gases and thus enhanced selectivity. This results in the prevention of false alarms. Only a 4 wavelength system always guarantees early warnings and the simultaneous prevention of false alarms.

New Technology

The IR 29 is the first and only intrinsically safe IR gas transmitter with patented 4-beam 4-wavelength technology.

The ignition protection class "intrinsically safe", which is so essential for industrial plants and the mining industry, is achieved by the additional use of the SB1 safety barrier and its internationally patented and innovative design.

Complete Safety Even In Zone 0

The IR 29 is the first IR gas transmitter that can also be used in Ex zone 0 and which enables maintenance as well as replacement of the sensor head without additional expense when energized.

Universal Application

The IR 29 with its robust V4A stainless steel housing has been designed to withstand the harshest environmental conditions.

The application areas of the dust and water-protected structure range from production and storage areas to disposal sites, biogas plants, mines and oil rigs.

Internal Data Logger

A standard built-in data logger records all the measuring data, minimum / maximum values, average values and alarm events of the last 24 hours in a ring buffer.

The recording can also be shown on the display as a 2 and 8 hour trend indicator.

The histogram mode can be selected as a permanent display of the measured values. These values are continuously updated.

Graphical Display

Measured values are shown on the high-contrast graphical display. The display can be rotated 180° depending on the installation of the IR 29.

Self Diagnosis

Processor-based signal processing enables the systematic compensation of temperature dependencies, aging influences and soiling effects. Safety-relevant functions are monitored permanently via self-diagnosis procedures and a possibly required service is indicated automatically. Daily interfering factors, such as dust and dirt accumulation, are almost completely eliminated by the innovative design.

Pressure Sensor, Moisture and Temperature Compensation

The measuring accuracy of IR sensors depends on partial pressure and thus also air pressure. Climatic fluctuations or barometric high pressure therefore influence the measuring result. Furthermore, the absorption spectrum of water almost completely covers that of hydrocarbon absorption in the 2.7 to 3.3 μm range. Air humidity therefore initially generates a measuring signal the same as the actual measuring gas. This cross-sensitivity is of particular importance in warm areas with high relative humidity. An increase in the absolute water absorption capacity of air is not linear with the temperature, i.e. three times as much water can be absorbed at 40 °C than at 20 °C. This influence can only be compensated if the current moisture content of the air is known. The IR 29 can be optionally equipped with a pressure and moisture sensor for compensation.

Maximum Safety

The innovative display enables the realization of completely safe warning concepts.

Local displays and signals directly at the device can be used to provide an early warning of potential risks.

The display at the upstream safety barrier SB1 D enables the detection of risks outside the danger zone being monitored.

This allows immediate on-site action before really hazardous situations occur.

Dust Protection

A gas permeable, water-repellent diaphragm protects the absorption space of the transmitter against dust. The additional impact protection made from robust V4A stainless steel prevents mechanical damage to the optical components.

The diaphragm can be cleaned or replaced in a matter of minutes.

Remote Controls

The IR 29 transmitter does not feature control elements for setting or servicing tasks. This helps to prevent accidental or unauthorized manipulation.

Service work at the IR 29 transmitter is carried out using the RC 2 remote control.

Features

• First intrinsically safe infrared transmitter for explosion protection
• ATEX II 1G Ex ia IIC T4 Ga C0158 can also be used in Ex zone 0
• Temperature, moisture and pressure compensation
• Patented infrared technology (NDIR)
• The energized IR sensor head can be replaced in Ex areas
• Maintenance and service-friendly

6130-2090 MGD-100 Gas Detection System, CO2: 0 - 5,000 ppm, 2 Sensors, 2 Alarms, IP66 Housing, 110 VAC by Bacharach

Bacharach's MGD-100 Series is a robust and scalable gas detection system used for reliable real-time monitoring of refrigerant, combustible, and toxic gases. It's a stand-alone system that alarms when pre-set thresholds are exceeded. The MGD-100's alarms are monitored by a centralized controller, which can alert personnel of potential hazardous conditions via an onboard buzzer and LED alarm indicators.

MGD-100 Systems can be configured from single-sensor, one-alarm level systems to larger scale systems consisting of 6 sensors with 2 alarm levels. This flexibility allows the platform to be used for both small and large systems.

Ideal for Chiller Rooms, Supermarkets, Brewing and Bottling Facilities, Industrial Refrigeration, Arenas, Food Storage and Processing Facilities.

Features & Benefits:

• Stand-alone, out-of-the-box solution with quick and easy installation - the most cost-effective system available.
• Fast-response sensors detect leaks quickly, which minimize refrigerant gas usage and environmental impact.
• Infrared (NDIR) CO2 detection
• Long-life semiconductor sensors for detection of all refrigerants, ammonia, halocarbons, combustibles & VOCs
• Robust design allows units to be placed directly in areas where detection is needed.
• Available in a variety of housings, including IP66 and duct mount.
• Select from 1, 2, 4 or 6 remote sensors and 1 or 2 pre-set alarm levels, which can be connected to BMS systems.

Part Number: 44L-HCN-10

H-10-103-12 Hydrogen Sulfide Colorimetric Gas Detection Tube, 0 - 150 ppm (10 Tubes / Box) by RAE Systems

RAE Systems colorimetric gas detection tubes enable quick, on-the-spot measurement of a wide range of toxic and combustible gases and vapors. RAE Systems tubes are easy to read, and provide a sharp, clear color change directly corresponding to the concentration of gas present. RAE Systems tubes are compatible with the RAE Systems piston hand pump, a reliable way to draw samples of an exact volume required for the most accurate measurements.

Key Features

• Wide assortment of tubes available to detect over 300 gases and vapors
• Easyto use, even in multiple layers of gloves
• Easy-to-read with sharp,clearcolorchange
• No calibration or other maintenance required

Applications

• Oil and gas
• Chemicals and petrochemicals
• Agriculture and pestcontro
• Food and beverage production
• Environmental protection
• Fire service
• HazMat response
• Nationalsecurity

WD-35653-02 "Singles" pH 7.00 Buffer Solution Pouches, 20 pouches per box each with 20 mL of solution by Oakton

Choose from economical solution bottles or individually sealed pH buffer pouches.

All Oakton pH buffer solutions are freshness dated, and standardized against NIST-traceable references to ensure quality. ±0.01 pH at 25°C.

OAKTON pH buffer solution bottles are labeled with the name and CAS number for all ingredients (for Right-to-Know requirements), and are supplied with an MSDS (Material Safety Data Sheet).

OAKTON pouches are convenient, air-tight pouches with high-precision calibration standards. Ideal for field use-take them to your test site for on-the-spot calibration. Each box contains twenty 20 mL pouches. Dimensions: 4.5"L x 5"W x 4.5"H (box). Shpg wt 1 lb per box.

• NIST traceable materials
• Labeled with pH vs temperature tables for accurate calibration

94460-77 Traceable® Sentry Triple-Display Thermometer with Calibration; -50 to 70C, Wire Probe by Digi-Sense

Thermometers include a weatherproof remote sensor with a 10-ft. (3.05m) long 1/16"-diameter micro cable. The micro cable is ideal for applications that require a seal, such as a refrigerator, where a larger cable would interfere with the sealing of the door. Unplugging the external probe will activate an internal sensor for monitoring ambient temperature. Thermometer features a high-impact ABS plastic case, large LCD that updates every 10 seconds, and a simple one-button reset to clear the high/low memory. Supplied with Velcro® strip for wall mounting or has a flip-out stand for tabletop use.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately.

NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

Models 94460-76 and -77 are designed for general-purpose applications

• Get accurate, reliable measurements with included NIST-traceable calibration
• Monitors temperature continuously

Includes

NIST-traceable calibration certificate with data, mounting hardware, and one battery.

94460-70 Traceable® General-Purpose Digital Thermometer with Calibration; 1 Wire Probe by Digi-Sense

Easily monitor temperature in liquids, baths, air/gas, incubators, refrigerators, or freezers. Keep track of temperature conditions overnight or for any time period - minimum and maximum temperatures are stored until the memory is cleared. Models feature a triple display that simultaneously shows current, minimum, and maximum temperatures. Set high and low alarms in 1° increments; alarm sounds when temperature rises above or falls below set points, and continues to sound even if temperature returns to nonalarm range. Thermometer reads ambient temperature or probe temperature.

Probe is attached to a 10-ft (3 m) micro-cable that permits a doors to close on it; probe and cable are both submersible. Mount meter with included Velcro® strips, wall-mount slots, or use flip-open stand on benchtop.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately.

NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

Models 94460-70 has a wire probe and designed for general-purpose applications.

• Get accurate, reliable measurements with included NIST-traceable calibration
• Triple-display - shows high, low, and current temperature simultaneously

Includes

NIST-traceable calibration certificate with data, plastic stand, double back tape and Velcro® for attaching holder to any surface, probe(s), and two AA batteries

SCT-108.005.03 SCT-EC-MINI Conductivity Mini Controller by ScichemTech

Includes:

• Conductivity probe
• Fixation clamps
• Instruction manual

Features:

• SCT EC MINI online Conductivity controller is an panel Instrument for online monitoring of Industrial process conductivity
• Simple and compact design
• Three ranges of conductivity measurements in on single controller
• Range switch over and constant check can be easily adjusted from the rear panel.
• Unique signal collecting and processing technology.
• Special think film circuit for accurate measurement and stable operations.
• Linearized data and automatic temperature compensations.
• In line measurement and control of conductivity.
• Conductivity electrode is supplied with 5 meter cable.

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

3300-013 CC 33 Fixed Transmitter with Stainless Steel Housing, RS 485 No Relay by GfG

It has always been our aspiration to combine innovative ideas and technology with functional design. This is how quality and longevity come about. Attributes symbolic of the name GfG in gas measurement.

Are you looking for an innovative transmitter for flammable gases, but need explosion protection? Then a transmitter from the GfG 33 series is the right choice.

Robust housing for every application

The transmitters of the 33 series are flameproof encapsulated and fulfill the requirements of the type of protection "d". Depending on the application, you can choose the 33 transmitter with an epoxy-based aluminum or a pure stainless steel housing. In order to meet the quality requirements of our customers and our own standards in terms of durability, we use a particularly high-quality and durable Viton seal in the 33 series. This can withstand even the toughest operating conditions for many years.

Variants

GfG offers the CC 33 in two variants:

For conventional industrial The CC 33 is available in a lacquered die-cast aluminum housing with 10mm thick bulletproof glass. Applications with special conditions such as e.g. in the Food industry can be covered by a unpainted housing made of stainless steel with a 15mm thick bulletproof glass.

Operation by means of magnetic pin

The three magnetic switches behind the protective glass, which is up to 15mm thick, can be operated using the GfG magnetic pin. The GfG typical three-button operation is easy to understand. The menu is clearly structured and logically structured.

All transmitters of the 22, 29 and 33 series have a uniform user interface. The uniform operation and the logical system structure keep your training and maintenance effort as low as possible.

Proven and innovative is not a contradiction

The CC 33 works on the principle of catalytic heat generation (WT), a proven method for measuring combustible gases. The transmitters are equipped with high-performance electronics for voltage stabilization, processing of measured value output and temperature compensation. The long life of the sensors minimizes follow-up costs.

Sensor technology

With improved sensor technology and the unique GfG "chimney effect", the CC 33 transmitter for combustible gases has one of the fastest response times in the world. There are more crucial seconds left to initiate countermeasures and to bring people to safety.

Universal signal transmission

The measured values and status displays of the 33 series can be transmitted either analog or digital via the Modbus interface. Due to the different variants of signal transmission, a transmitter of the 33 series can be connected to almost any gas warning system as an additional measuring point or in exchange for existing transducers.

Signal processing

The embedded software of the 33 transmitter linearises the measurement signal and compensates for temperature influences. As a result, correct measured values are transmitted even in the event of weather-related temperature fluctuations. The execution of the software enables the detection of faults and, in the Modbus variant, the requirement of required service or maintenance work.

Smart sensors

Pre-calibrated sensor modules can be screwed directly into the sensor receptacle on the housing of the CC 33. The smart GfG sensors are pre-programmed with all the necessary parameters and can be used without much effort ("plug and play"). Sensor changes are shown in the display. (catalytic and electrochemical sensors)

Three freely programmable internal relays

The 33er transmitters can be used as a "stand-alone system". You can set the two alarm thresholds individually and freely program the optional three relays. You do not need a cable to a controller and you can nevertheless reliably switch safety-related devices.

With colored graphic display

The clearly laid-out graphic display makes it easy to read the device status, the current measured value and many other important information. In the event of an alarm, the display turns red. The large LEDs signal from a distance the current device status and thus serve the rapid information of your employees about any alarms or malfunctions.

Using the display, you can easily navigate through the clear device menu and make various settings, including calibration, depending on your user authorization.

Calibration

For regular function control with gas application, a calibration adapter is placed on the transmitter to ensure a safe and even gas supply.