Fixed Gas & Flame Detection

Modular system offering the widest range of control cards for use in an integrated fire and/or gas detection system. The Zero Two Series system can monitor any combination of the following: combustible gas, H2S, toxic gas, ultrasonic, oxygen deficiency and flame detection. In addition, its open architecture allows the system to accommodate other sensing devices for tasks such as smoke detection, heat detection and manual call points. 

The TA102A is a single-channel Combustible Gas Trip Amplifier Module designed for use with one General Monitors intelligent transmitter to monitor combustible gases and vapors within the lower explosive limit (LEL) and provide status indication and alarm outputs. Microprocessor-based electronics allow all options to be user selectable through a front panel interface (mode / select switch and digital display). A digital display indicates fault codes and set up options. Other features include: LED indications of status, as well as both open collector and relay outputs for fault, low alarm and high alarm.

The 4802A is a single channel Combustible Gas Control Module that has been designed for use with General Monitors catalytic bead sensors. It is designed to monitor combustible gases and vapors within the lower explosive limit (LEL) and provide status indication and alarm outputs. Microprocessor-based electronics allow all options to be user selectable through the front panel interface. A digital display indicates gas concentration, fault codes, calibration cues and setup options. Other features: LED indications of status, as well as open collector and relay outputs.

The 610A is a system for continuously monitoring combustible gas (hydrocarbon) concentrations in four locations. The system consists of four General Monitors remote catalytic bead sensing assemblies and a solid-state controller. The controller features four independent channels, each having its own circuitry. The 610A features a digital display of gas concentrations in % LEL (0-99% lower explosive limit) for each channel.

The General Monitors catalytic bead gas sensors are well known for their sensitivity, reliability and longevity and make them the first choice for most users of the catalytic oxidation gas detection principle. Every component is manufactured in-house to ensure optimum performance. Careful matching of the active and reference elements ("beads") result in a sensor that has negligible zero drift with respect to changes in humidity, pressure, and temperature.

The IR5500 is an open path infrared (IR) gas detector that continuously monitors for flammable gas leaks over large open areas. It monitors in both the LEL-m and ppm-m ranges to detect both small and large leaks. The IR5500 offers the benefits of early detection with its high sensitivity to gas concentrations at the ppm levels.  This feature allows it to alarm faster than an LEL-only detector. Digital display and adjustable mounting arms ensure easy alignment. Factory calibrated for low-maintenance operation.

General Monitors offers a wide variety of accessories for our catalytic bead gas sensors.

The TA202A is a single-channel H2S Trip Amplifier Module for use with our H2S Intelligent Sensors. It is designed to monitor H2S in parts per million (ppm) levels and provide status indication and alarm outputs. Microprocessor-based electronics allow all options to be user selectable through front panel interface (mode / select switch and digital display).

General Monitors offers a wide variety of accessories for infrared gas leak detection.

General Monitorsʼ hydrogen sulfide (H2S) sensors are solid state devices, designed and manufactured for long life and fast response. They are selective to H2S and remain unaffected by high concentrations of other substances like hydrogen, sulfur dioxide, and gasoline vapors, which are often present in facilities that process sour gas and crude oil. A high tolerance to a broad range of temperatures and humidity enable these sensors to operate in rugged environments, as does their capacity to withstand exposure to high H2S concentrations over short periods.

The Model TA402A is a single-channel trip amplifier module designed for use with the FL3100 Series Flame Detectors, providing status indication and alarm outputs.

The General Monitors electrochemical gas sensors are highly sensitive to toxic gases including carbon monoxide, H2S, hydrogen, ammonia and oxygen deficiency.

Instantly detect pressurized gas leaks with this high-precision,  omni-direction acoustic detector utilizing Gassonic ultrasonic technology. Works even when traditional methods of gas detection are unsuitable or dependent on ventilation. Features Artificial Neural  Network (ANN) technology that distinguishes between real gas leaks and false  alarm sources without requiring any in-field training. The Observer® i UGLD provides an industry-leading detection range (up to 28 m) reducing the  number of detectors required. Ideal for use in complex, outdoor pipeline systems.

The TA502A is a single-channel generic trip amplifier designed for use in Zero Two Series Gas and Flame Detection Systems. It is used to process the 0-22 mA signal from any field mounted transmitter.

General Monitors offers a wide variety of accessories for our toxic gas detectors.

The CC02A Communications Card facilitates serial communications between each module in a Zero Two Series Flame and Gas Detection System and an external host computer, which allows fast access to operational and setup data registers. It supports a Burst Read feature that returns all registers of a module in a single transmission.

The Remote Gas Calibrator (RGC) allows calibration gas to be applied to a remotely located catalytic bead sensor from an easily accessible location. The RGC is used for blocking ambient air and redirecting methane to the catalytic sensor for calibration or testing sensor accuracy. The RGC tests or calibrates the General Monitors catalytic sensor with 50% LEL methane. The unit is capable of calibrating gas at wind velocities up to 50 mph. The RGC is used manually with a pressure regulator (P/N 80146-1) and is suitable for calibrating with any light hydrocarbon.

The TL105 is a battery operated test lamp designed specifically to test General Monitors Flame Detectors. The TL105 is an explosion-proof test lamp that can be used with the FL4000H MSIR flame detector as well as any of the FL3100 Series Flame Detectors. The TL105 operates up to 35 feet from the flame detector.

The FM002A is a facilities module that provides a range of common facilities for all Zero Two control modules housed in the chassis. The FM002A is plugged into the last slot on the right-hand side of the Zero Two chassis. It may be daisy-chained allowing one FM002A to serve up to 100 Zero Two modules in any combination.

The remote gas calibrator, RGC-IR, is designed to be permanently installed on a combustible IR gas detector. The RGC-IR provides protection from outside elements and allows the user to apply calibration gas (@ 50 psi) to the detector from a remote source.

The IN042 is a four zone input module designed for use with two-wire field devices such as smoke or heat detectors, pull switches and manual callpoints. It is designed to monitor these devices and provide both status indication and fault / alarm outputs for each zone.

To verify the proper operation of a catalytic combustible gas sensor, it is necessary to periodically apply a gas of known concentration to the sensor. This is usually done manually at the site with gas supplied from a small lecture bottle. As the sensor reacts to the calibration gas, adjustments are made to the monitoring system to bring its calibration into agreement with the known concentration of the calibration gas. At times, sensors are mounted in inaccessible locations, requiring expensive catwalks or scaffolding to reach them. The High Temp Remote Gas Calibrator (RGC-HT) allows the calibration gas to be applied to the catalytic bead sensor from easily accessible locations. The RGC-HT is used for blocking ambient air and redirecting methane or other light hydrocarbon gases to the catalytic bead sensor for calibration or testing sensor accuracy in various environments. The RGC-HT tests or calibrates the General Monitors Catalytic Bead sensor with 50% LEL methane or other light hydrocarbon gas. The unit is capable of calibrating and detecting gases in various wind conditions (up to 45 mph) and temperatures (up to 200°C when used with high temperature sensor).

The 1701 is a portable test and calibration unit used to verify the operation and calibrate certain ultrasonic gas leak detectors. Although the detectors do not require regular maintenance, the 1701 can be used to satisfy the requirements for regular plant maintenance. Further, the 1701 requires no electrical connection to the gas leak detector but is simply placed over the sensor head of the gas leak detector.

General Monitors offers a complete line of mounting hardware to facilitate installing any of our gas and flame detectors in commercial or industrial facilities.

The MC600 is a microprocessor-based multi-channel controller that provides six channels of continuous gas detection. It can be configured as either a local gas detection system, or it can be networked to provide a large plant-wide distributed safety system. It is compatible with our hydrocarbon sensors, H2S sensors, as well as our S4000CH, S4100C, S4000TH, S4100T, IR400, IR5500, IR700, TS4000H, Observer, and Surveyor gas detectors.

The S4000CH Intelligent Sensor is a microprocessor-based transmitter designed for use with General Monitors industry-leading catalytic bead sensors. It monitors combustible gases and vapors within the lower explosive limit (LEL) and provides status indication and alarm outputs. Complies with ANSI/ISA 12.13.01-2000 performance requirements for combustible gas detectors. This product has been replaced by the S5000 Gas Monitor. See its many advantages here: msasafety.com/s5000.

The S4100C Intelligent Sensor is a self-contained microprocessor-based transmitter with integral three-digit readout. It is designed to measure and display concentrations of combustible gases in the 0-100% LEL range, but will continue to display concentrations up to 120% LEL. The sensing element may be incorporated in the transmitter housing or remotely mounted at distances up to 620 meters. The S4100C records the number of successful calibrations, computes the sensor output in mV during calibration and stores in non-volatile memory. This product has been replaced by the S5000 Gas Monitor. See its many advantages here: msasafety.com/s5000.

The FL3100H has been discontinued. Please see the FL500 UV/IR Flame Detector as an alternative. The FL3100H is an Ultraviolet / Infrared flame detector designed to detect fires and provide alarm outputs directly from the detector while maintaining false alarm immunity. It monitors in both the ultraviolet (UV) and infrared (IR) spectral ranges, making it highly immune to false alarms.

The FL3110 has been discontinued. Please see the FL500 UV/IR Flame Detector as an alternative. The FL3110 is an Ultraviolet/Infrared (UV/IR) flame detector designed to detect unwanted fires and provide alarm outputs directly from the detector while maintaining false alarm immunity. The FL3110's electronics are integral within its stainless steel explosion-proof housing, allowing detector information to be processed at the point of detection.  The electronics are fully separated from the Exe wire compartment offering protection during installation and service.

The 580A is a compact, highly-versatile system for continuously monitoring combustible gas (hydrocarbon) concentrations in two locations. The system consists of two remote catalytic sensing assemblies and a solid-state controller. The controller automatically displays the higher reading channel on a digital display, scaled from 0-100% LEL (lower explosive limit). Manual override switching permits readout of the low channel at any time.

The 2280A is a system for continuously monitoring H2S gas concentrations in four locations. The system consists of up to four remote mounted sensors and a solid state controller. The controller consists of four independent channels, each having its own circuitry. With a digital display, the 2280A shows hydrogen sulfide gas concentrations in ppm (parts per million) in the ranges of 0-20, 0-50, or 0-99 ppm for each channel.

The 2602A is a single-channel H2S Control Module that has been designed to monitor H2S in parts per million (ppm) levels and provide status indication and alarm outputs. Microprocessor-based electronics allow all options to be user selectable through front panel interface (mode / select switch and digital display). The digital display on the 2602A indicates hydrogen sulfide gas concentration, fault codes, calibration cues and setup options. Other features include LED indications of status, relay outputs for fault, low alarm and high alarm, and serial communications ports.

The S4000TH Intelligent Gas Sensor is a microprocessor-based transmitter designed for use with General Monitors' thin film metal oxide semiconductor (TFMOS) sensors to detect H2S gas. The unit features one person calibration and can virtually self-calibrate by simply activating a magnetic switch and applying gas. It detects hydrogen sulfide in 0-20 ppm, 0-50 ppm or 0-100 parts per million (ppm) levels over a wide temperature range. This product has been replaced by the S5000 Gas Monitor. See its many advantages here: msasafety.com/s5000.

The FL3111 has been discontinued. Please see the FL500 UV/IR Flame Detector as an alternative. The Model FL3111 is an Ultraviolet (UV) flame detector designed to detect unwanted fires and provide alarm outputs directly from the detector while maintaining false alarm immunity. The FL3111's electronics are integral within its stainless steel explosion-proof housing, allowing detector information to be processed at the point of detection. Designed specifically for the European market, this product has European approvals only and must be ordered with the exact required options from the menu offered.

The S4100T Intelligent Sensor is a highly reliable, self-contained, microprocessor-controlled hydrogen sulphide transmitter with integral 3 digit readout. It is designed to measure and display concentrations of H2S in the 0-20 ppm, 0-50 ppm or 0-100 ppm range, but will continue to display concentrations up to 120% FSD. The gas sensor may be incorporated in the transmitter housing or remotely mounted at distances of 600 meters. The sensor employs thin film metal oxide semiconductor (TFMOS) technology as the measuring principle. This product has been replaced by the S5000 Gas Monitor. See its many advantages here: msasafety.com/s5000.

The Model FL802 is a compact, reliable and versatile multi-channel flame detection readout/relay display module designed to monitor up to eight remote FL4000H or FL3100 Series detectors.

The DC110 is an eight-channel Readout / Relay Module designed to be used with up to eight of our remotely located Combustible Intelligent Sensors. The front panel contains a digital display that indicates 0-99% LEL (lower explosive limit) of the combustible gas being monitored by the Intelligent Sensors.

The FL3111 has been discontinued. Please see the FL500 UV/IR Flame Detector as an alternative. The FL3112 is a Digital Frequency Infrared (DFIR) flame detector designed to detect unwanted fires, and provide alarm outputs directly from the detector while maintaining high false alarm immunity in onshore / offshore applications. Designed specifically for the European market, the flame detector has European approvals only and must be ordered with the exact required options from the menu offered.

The DT210 is an eight-channel Readout / Relay Module designed for use with up to eight of our remotely located H2S Intelligent Sensors. The front panel contains a digital display that indicates 0-20 ppm (parts per million), 0-50 ppm, or 0-99 ppm of the hydrogen sulfide gas monitored by the Intelligent Sensors.

The MD002 is a monitored driver output module designed for four independent outputs requiring monitoring in their non-active state, such as extinguishing solenoids, beacons, horns, etc. Each driver is independent and has circuitry to monitor short and open circuits in field wiring.

The ZN002A is a Zone Control Module for the Zero Two Series Fire and Gas Detection System. The ZN002A provides zoning and voting functions for three separate and independent zones of gas and / or flame detection.

The IR4000S Single-Point Monitor is a display and user interface for the IR400 point IR gas detector. The monitor allows local calibration and displays gas concentration. Relays are optional. The relays provide output for Alarm, Warn, and Fault conditions. This product has been replaced by the S5000 Gas Monitor. See its many advantages here: msasafety.com/s5000.

The IR4000M Multi-Point Gas Monitor can be used as an integrated combustible gas detection system, with capacity to connect eight point IR or open path gas detectors and read their status with one command. The highest current % LEL among all connected detectors is shown continuously during normal operation. An extensive set of menus are easily navigated using a magnetic switch to request the status and configuration data stored by the IR4000M. This product has been replaced by the S5000 Gas Monitor. See its many advantages here: msasafety.com/s5000.

The Surveyor detects gas leaks by sensing the airborne ultrasound emitted from leaking gas at high pressure. Ultrasonic gas detection is based on robust and proven Gassonic technology and designed for long and failsafe operation in extreme environmental conditions. Because the Surveyor responds to the source of a gas release rather than the dispersed gas, it is unaffected by changing wind directions, gas dilution, and the direction of the gas leak. Looking for an ultrasonic gas leak detector? Explore the many benefits of the Observer-i Ultrasonic Gas Detector.