Oxygen monitoring is absolutely necessary whenever cryogenic fluids are present. Cryogenic liquids can expand up to 700 times their volume when they change from liquid to gas, which effectively replaces ambient oxygen, quickly creating an oxygen deficient environment. Normal air contains 20.9% oxygen; OSHA considers levels at and below 19.5% oxygen to be dangerous.
Whether you are working with cryogenic fluids, or other hazardous gases, Princeton Cryotech and GFG covers all gas monitoring applications, in both fixed and portable systems.
It offers a local display, a horn / stobe, and a linear 4-20 mA output. The Dynagard 25 Series is a safe and reliable gas warning system.
Each alarm point can be adjusted separately. The alarm point values can be freely adjusted within the detection range of the transmitter. The controller provides four voltage-free relays for the three alarms and one fault warning. The relays can prompt specific counter measures to prevent or limit dangers from gases or vapors.
For O2, the ZD 21 zirconia sensor technology in the Dynagard 25 Series O2 has an impressive response to an oxygen deficiency in less than two seconds. This extremely short response time allows the user the time to take measures to prevent considerable damage.
For CO2, the Dynagard 25 Series CO2 uses the IR 24 detection technology. The NDIR method used in the GfG sensor can measure the carbon dioxide concentration precisely and reliably.
The 25 series control panel may be connected to any available GfG transmitter for detection of oxygen (O2), combustible gases (LEL) or any transmitter from a wide range of toxic gases. The 25 Series has a compact design, push button operation, easy installation and a rugged metal housing.
There are three user-adjustable alarm hysteresis, four relays and the factory configured alarm functions include latching/non-latching, resettable/non-resettable, time delay and rapid rise alarm for combustible setups. Each alarm can be adjusted separately and the alarm values can be freely adjusted within the detection range.
The controller provides four voltage-free relays for the three alarms and one fault warning. The relays may be used to control additional alarm devices like lights or horns.
Control panels may be configured with up to 16 channels of monitoring. At the heart of the 4000 series panels is an array of up to four highly configurable GMA 40 mini controllers. Each GMA 40 may be configured to one of any available GfG gas transmitters.
Each GMA 40 series controller features a numeric display for direct reading of gas concentrations or values from the transmitters connected. The three alarms in each mini control module can be adjusted separately and the alarm points may be set to any value within the detection range and are field adjustable. Each alarm function may also be programmed to be latching or non-latching, and resettable/non-resettable.
The 4000 series controller is equipped with a combination horn and strobe. The loud horn makes it ideal for environments where background noise may be present.
The expected lifetime of the sensor is five years in continuous operation. A robust aluminum casing protects the sensor and the circuitry from impacts, splashed water, and dirt. The ZD 21 is an “intelligent” transmitter. The comprehensive electronics allow for easy operation and maintenance and also increase operational safety and accuracy. In less than two seconds the ZD 21 responds to an oxygen deficiency. This extremely short response time allows the time to take measures to prevent considerable damage.
Then a GfG 22 series transmitter is the right choice.
The CC 22 works according to the heat of reaction principle, a proven method for measuring combustible gases. The transmitters are fitted with high-performance electronics for voltage stabilization, processing of readings, and temperature compensation. Follow-up costs are minimized thanks to the long lifespan of the sensors.
The embedded software of the CC 22 linearizes the measuring signal and compensates for the effects of temperature. As a result, correct readings are transmitted even with weather related fluctuations in temperature.
The CC 22 is available with a display or without display. The clear graphic display of the CC 22 is self explanatory and allows you to read off the current status and other important information with ease. The display enables you to navigate effortlessly through the unit’s concise menu and to change settings or even calibrate, depending on your user authorization. In the event of an alarm, the display will turn red.
This smart area monitor has an aluminum explosion proof housing with a stainless steel sensor cover that makes the EC 30 series suitable for the harshest environments.
NH3, CO, CL2, CLO2, C2H4O, HCL, HCN, H2S, NO, NO2, O2, O3, SO2
Lightweight (2-4 ounces), up to six months of battery life from a single off the shelf AA alkaline battery and a heavy duty alligator clip that allows the detector to be conveniently clipped on to clothing and it has so much capability packed into it. The Micro IV has a large backlit graphic display with real-time readout, programmable ceiling (3), STEL and TWA alarms.
The Micro IV offers a highly configurable smart sensor design and a wide range of sensors including O2, H2S, CO, NH3, SO2, CL2, CLO2, PH3, NO2, HCN, HCI, ETO, HF, O3, NO, H2, THT and more! There is a full 3-year warranty on O2, CO and H2S sensors and a lifetime warranty on non-consumable components.
Most day-to-day functions are controlled with a single button, and calibration is fully automatic. The optional slide-on motorized pump allows sampling from a remote location. Event datalogging is standard, and with the optional docking station, bump test and calibration are simple and all maintenance records are stored automatically.
GfG Instrumentation develops and manufactures a full line of portable gas detectors, fixed systems and respiratory airline monitors to provide protection from combustible gases and vapors, oxygen hazards and toxic gases. The Micro IV single-gas detector is your choice for a simple, lightweight and full featured personal gas monitor.
Ammonia (NH3), Carbon monoxide (CO), Chlorine dioxide (CLO2), Chlorine (CL2), Ethylene oxide (ETO), Hydrogen fluoride (HF), Hydrogen sulfide (H2S), Hydrogen (H2), Hydrogen chloride (HCL), Hydrogen cyanide (HCN), Nitrogen oxide (NO), Nitrogen dioxide (NO2), Oxygen (O2), Ozone (O3), Phosgene (COCL2), Phosphine (PH3), Silane (SIH4), Sulphur dioxide (SO2), Tetrahydrothiophene (THT)
The G450 four sensor multi-gas detector is compact, durable and very easy-to-use. The H2S sensor offers 0.1 ppm resolution to comply with the latest TLV® requirements. G450 sensors are warranted for 3 full years, ensuring that the G450 has the lowest cost-of-ownership of any confined space gas detector on the market today. Replacement sensors carry the same 3 year warranty as the original sensors.
The G450 offers completely automatic calibration, one-button operation, top mounted display and interchangeable battery packs for up to 25 hours of continuous operation.
The optional motorized pump operates in diffusion and sample-draw modes, and can be easily attached or removed from the instrument when sampling needs change.
Carbon monoxide (CO), Hydrogen sulfide (H2S), Oxygen (O2), Methane (CH4), LEL
The GfG G450 Simulator is a software program which simulates most of the G450 operations on a PC. The software does not require formal installation. Simply download the ZIP file below and extract it to a folder of your choice. The ZIP file contains 3 files which must all be saved (extracted) to the same folder. Once extracted and saved simply double-click on the file named G450Sim.exe or G450Sim to run the program
Installed sensor options include infrared (NDIR) for CO2 and PID for VOC measurements. A full 3-year warranty is provided on most commonly used sensors, which reduces the cost of ownership over the lifetime of the instrument. The G460 offers completely automatic calibration, one-button operation, top mounted display and interchangeable battery packs for up to 25 hours of continuous operation. The rechargeable NiMH battery pack can even be equipped with optional “flash light” LEDs.
The large, high-resolution top display can be flipped 180° by pressing two buttons. Its watertight design incorporates an impact proof, rubberized housing to meet the toughest requirements.
The datalogger records over 1800 gas concentrations and alarms. The data can be downloaded to a PC for viewing, storage and evaluation. A detachable, self-powered pump is available for sampling confined spaces prior to entry. It allows operation of the instrument in diffusion or sample-draw mode.
GfG Instrumentation develops and manufactures a full line of portable gas detectors, fixed systems and respiratory airline monitors to provide protection from combustible gases and vapors, oxygen hazards and toxic gases.
Carbon dioxide (CO2), Carbon monoxide (CO), Sulphur dioxide (SO2), Hydrogen cyanide (HCN), Chlorine (CI2), Ammonia (NH3), Phosgene (PH3), Hydrogen (H2), Nitric oxide (NO), Nitrogen dioxide (NO2), Chlorine dioxide (CIO2), Ozone (O3), (ETO), Tetrahydrothiophene (THT), Ethylene oxide (C2H4O), Hydrogen chloride (HCI), Hydrogen fluoride (HF), Hydrogen sulfide (H2S), Oxygen (O2), Phosgene (COCL2), Silane (SIH4), PID (VOC), Combustible (Infrared), Combustible (Catalytic), LEL
Designed for one-hand operation, the G300 reacts to concentrations as small as 5 ppm and measures up to more than 10,000 ppm or 1% volume.
Ammonia (NH3), Methane, R22, R12, R13a, and others
The DS400 automatically performs functional bump test and calibration; simply place the detector in the dock and the system will take over from there. The DS400 automatically performs a full functional test including fresh air calibration, bump test, extensive sensor tests, alarm tests and optionally performs an automatic AutoCal® calibration. After testing, you can quickly print official calibration or bump test certificates.
The DS400 is designed to go beyond the traditional basic docking station tests and includes sensor diagnostics tests such as T50 and T90. After all tests have been completed the DS400 will automatically start the charging process of the detector or you may remove and begin using it. The DS400 docking station can retain as many as 2 million complete diagnostics in memory with maximum memory installed. That is over 50 years of data even if testing 100 detectors every single day!
The DS400 is designed to reduce the cost of ownership every step of the way. The built in pump has variable flow control to reduce the amount of gas consumed during the test. The DS400 is even smart enough take advantage of the gas remaining in the tubing after the previous test was completed. With this reduced cost of ownership and the ease of operation, the DS400 docking station is a must have accessory to the G450 and G460 gas monitors.
Simply place the G450 or the G460 in the dock and the system will take over from there. The DS404 automatically performs a full functional test including fresh air calibration, bump test, extensive sensor tests, alarm tests and optionally performs an automatic AutoCal® calibration. The primary difference between the DS400 and the DS404 docking stations is the DS404 is an automatic test station with four test gas ports for carrying out bump tests and for calibration of the zero point and sensitivity of the sensors of the G450 and G460 gas detectors.
Like the DS400, the DS404 is designed to go beyond the traditional basic docking station tests and includes sensor diagnostics tests such as T50 and T90. After all tests have been completed the DS404 will automatically start the charging process of the detector or you may remove and begin using it.
The DS404 docking station can retain as many as 2 million complete diagnostics in memory with maximum memory installed. That is over 50 years of data even if testing 100 detectors every single day!
With the flexibility of four test gas ports and the ability to cascade multiple docking stations, the DS404 docking station is a premium accessory to the G450 and G460 gas monitors.
The TS400 automatically performs a full functional test that includes bump test, extensive sensor tests and alarm tests. After testing, you can quickly print official maintenance certificates.
The TS400 is available (optionally) for use as a charger as well as a test station. After all tests have been completed you may leave the detector in the TS400 for recharging.
The TS400 test station can retain as many as 2 million complete diagnostics in memory with maximum memory installed. That is over 50 years of data even if testing 100 detectors every single day!
The TS400 comes complete with USB interface cable and download software. The SD card may also be downloaded using a standard SD card reader.
The G400 MP-2 smart pump for the G450 and G460 gas monitors is the only detachable pump on the market today which will allow for operation in both diffusion mode and remote sample-draw mode. Another unique feature is the G400 MP-2 is operated by its own power supply, independent of the gas detector, which allows for up to 10 hours of continuous operation. Gas samples can be taken from a distance of over 300 feet at a typical draw rate of 0.5 liters per minute. It features a highly efficient redundant filter system in addition to a standard external probe with dust and hydrophobic filters. The G400 MP-2 continuously communicates with the G450 / G460 gas detector. This interaction allows fault indication via the detectors display and activate a visual, audible and vibration alarm on the monitor.
Bump tests or calibrations can only be effective for Micro IV detectors for the same gas and detection ranges. The following parameters are checked during the bump test: time and date, audible alarm, visual LED alarm, response time of sensor, response sensitivity, detector fault and time interval setting for the next bump test (e.g. 14 days). The test results are similar to a traffic light signal for each detector in the docking station. A red LED indicates the detector failed, yellow indicates the test is running and a green LED indicates the detector passed.
Simply press the red button to switch the docking station over to calibration mode and it will start up automatically. Again, the results are shown using the red, yellow and green LED indicators.
The DS220 docking station is simple to operate and allows multiple detectors to be bump tested and calibrated simultaneously.
For over 50 years the company has specialized in developing, and producing the safest and most reliable equipment and sensors available. Offering an extensive range of portable monitors, fixed systems, and respiratory air monitors, GfG provides diverse solutions for toxic, explosive, and oxygen gas detection.
GfG equipment is used in a wide variety of applications and industries including automotive, chemical industries, landfills, steel industries, hospitals, mining, public utilities, food processing, research institutes, universities, and wherever the protection of life and property is needed.
Products are developed by a team of highly qualified scientists of various disciplines, engineers and technicians, working in cooperation with leading research institutions, bringing practice and theory together.
Specially trained engineers and technicians form a team for consulting, planning, installing and servicing before, during, and after the sale to assist the customer in making the best decision. Supporting a worldwide sales and distribution network, GfG Instrumentation has established production facilities around the world in the United States, Germany, South Africa, Switzerland, and Singapore.
Specific training is offered for users to become qualified with the operation and maintenance of the equipment to ensure the highest performance and deliver uncompromising safety, reliability, and convenience in the workplace.