The EX-5100 incorporates a pellistor or catalytic bead sensor. This sensor consists of a matched pair of elements, one active and the other for compensation. The active bead is coated with a catalyst that, when in contact with a combustible hydrocarbon or solvent, causes the gas or vapor to "burn" or oxidize at concentrations below the Lower Explosive Limit (LEL). This oxidization process raises the temperature of the active bead and increases the resistance of the internal wire coil. The second bead does not have the catalytic coating and provides compensation for environmental conditions including temperature and humidity. When these elements are connected in a Wheatstone bridge type circuit, a useable signal is produced that is ...
The EX-5120 incorporates a sensor that operates on the NDIR principle to monitor the concentration of hydrocarbon gas. It can be calibrated for a specific gas, such as methane, but it also responds to some other hydrocarbon gases, including propane, butane, etc. The sensor features an integral semiconductor for temperature compensation, a durable tungsten filament IR light source, filter and a dual temperature-compensated pyroelectric infrared detector.
The EX-5120 Sensor/Transmitter operates on 24 VDC power and features three LED alarm point indicators, 4-20 mA output and optional alarm relay board. This sensor/transmitter can be connected to various ENMET controllers or computer-based instrumentation, such as PLCs, ...
(8) The EX-5130 Series Sensor/Transmitters utilize electrochemical type cells to detect the target gas. These cells consist of electrodes, electrolyte and an air/liquid separation barrier. To enable the reactive gases to reach the sensor, the normal sintered metal disk is removed from in front of the sensor. The sensor is connected to an internal intrinsic safety barrier. Gas molecules enter the cell and, as a result of an oxidation/reduction reaction, generate an electrical current proportional to the gas concentration. This current is measured, conditioned, converted to the gas concentration, digitally displayed and transmitted as a 4-20 mA output signal. ENMET offers venturi-type gas samplers and a variety of multi-channel controller/alarm ...
An MOS sensor consists of a heated mixed metal oxide element that decreases in resistance in the presence of many gases and vapors. These sensors are broad range in their response characteristics. Different types of MOS sensors are available which can be optimized for a particular gas, but they are inherently non-specific.
The MOS sensor can provide monitoring capability similar to that of the classic catalytic bead or hot-wire sensor, but it can be calibrated for either % LEL or ppm detection levels of a wide range of hydrocarbons and organic solvents. The MOS sensor can also be used for detecting certain common toxic gases, including NH3, CO, H2S, etc.
MOS sensors operate at lower temperatures than ...
An MOS sensor consists of a heated mixed metal oxide element that decreases in resistance in the presence of many gases and vapors. These sensors are broad range in their response characteristics. Different types of MOS sensors are available which can be optimized for a particular gas, but they are inherently non-specific.
The EX-5155 can provide ppm level monitoring capability for detecting certain common toxic gases, including NH3 and H2S, in addition to a wide range of hydrocarbons and organic solvents.
MOS sensors operate at lower temperatures than catalytic type sensors, which makes them less prone to poisoning. The MOS sensor is therefore the sensor of choice in applications where, for example, ...
The EX-5165 incorporates a miniature NDIR type sensor for the measurement of carbon dioxide concentrations ranging from 500 ppm to 100% by volume.
The sensor is comprised of dual pyroelectric detectors, one active and one reference unit, with individual optical filters for specific radiation bands. Features of the sensor include a temperature monitor and a durable tungsten filament as the IR light source.
The EX-5165 Sensor/Transmitter operates on 24 VDC power, and provides a 4-20 mA output signal, which can be connected to a PLC or various ENMET controllers.
(8) The EX-5175 Series Sensor/Transmitters utilize electrochemical type cells to detect the target gas. These cells consist of electrodes, electrolyte and an air/liquid separation barrier. Gas molecules enter the cell and, as a result of an oxidation/reduction reaction, generate an electrical current proportional to the gas concentration. This current is measured, conditioned, converted to the gas concentration, digitally displayed and transmitted as a 4-20 mA output signal. ENMET offers a variety of multi-channel controller/alarm modules that provide the 24 VDC loop power and receive the 4-20 mA signal from the sensor/transmitters. These sensor/transmitters can also be connected to various computer-based instrumentation, PLCs, ...
(15) SDS-97D Series Sensor/Transmitters utilize electrochemical type cells to detect the target gas. These cells consist of electrodes, electrolyte and an air/liquid separation barrier. Gas molecules enter the cell and, as a result of an oxidation/reduction reaction, generate an electrical current proportional to the gas concentration. This current is measured, conditioned, converted to the gas concentration, digitally displayed and transmitted as a 4-20 mA output signal. ENMET offers a variety of multi-channel controller/alarm modules that provide the 24 Vdc loop power and receive the 4-20 mA signal from the sensor/transmitters. These sensor/transmitters can also be connected to various computer based instrumentation, PLCs, etc.
The CD-1300-ST Sensor/Transmitter is easy to install and maintain. The output signal is 4-20 mA or an optional 0 to 10 volt interface. The isolated power supply eliminates any ground loop or electrical interface problems when multiple units are connected to the same controller. Low power consumption makes the CD-1300-ST suitable for battery-powered applications. Features include a bright 0.4” high LCD display for easy wide-angle readability. For direct control applications the relay can be configured to open or close above the setpoint and is easily adjusted in the field. For ventilation control applications, the ductwork monitoring option is recommended.
The IR-6000 hydrocarbon detector is a single source dual wavelength instrument. The sensing and reference elements are self-compensating for optical integrity and other signal inhibitors. The 4-20 mA analog output can be connected to one of the several MX-Series Controllers available from ENMET. These controllers furnish 24 Vdc power for sensor/transmitters and provide a digital display of gas concentration, audio/visual alarm and relays.
