Remote Gas Monitoring Sensor Transmitter for Combustible Gases 0-100% LEL
EX-5100 is a remote gas monitoring sensor transmitter that 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 proportional to the gas concentration.
The standard EX-5100 calibration is 0-100% LEL methane. Therefore, methane is considered to have a coefficient of relative response of (1.00) one. Calibration coefficients relative to methane have been generated for over 30 different combustible hydrocarbons and solvents. In addition to these established coefficients, ENMET can generate calibration data for most common combustible gases and vapors for which a sample can be readily obtained.
The EX-5100 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 single and multi-channel ENMET controllers or computer-based instrumentation, such as PLCs, SCADAs, BMSs, etc.
Display: Backlit LCD
Alarm Indicators: 3 LEDs at programmable set points
Sensor Type: Catalytic
Sensor Range: 0-100% LEL
Menu/Calibration: Magnet-actuated switches
Voltage: 24 VDC powered
Output: 4-20 mA
Installation: 3-wire
Connection: 1/2 inch NPT, conduit
Humidity Range: 0-100%rH, non-condensing
Temperature Range: -4 to +158°F (-20 to +70°C)
Weight: 5.5 lbs (2.5 Kg)
Approval & Certifications*
Enclosure:
Class I, Groups B, C, D
Class II, Groups E, F, G
CENELEC: EEx d IIC, IP66
Sensor Head:
ATEX Approved:
CESI 01 ATEX 066 U
Certifications:
FM Standard 3615
CSA Standard C22.2 No. 30
UL Standard 1203
DEMKO CENELEC Standard EN 50014, 50018
*Approvals and certifications apply to the sensor and enclosure as individual components, not for the combined unit.
Acetone (CH3)2CO
Calibration Equipment/Replacement Parts/Accessories for EX-5100:
Part No. Description
03620-015 Calibration Adapter for EX-5100 Sensor/Transmitters
03045-002 Sampling Adapter for EX-5100
02506-004 Gas Regulator Assembly for 34 liter steel gas cylinders
03070-003 Combustible Gas Sensor for EX-5100
04546-005 Splash Guard for EX-5100
50030-001 Replacement Magnet
If you cannot find what you need or require a custom part, simply call and speak to one of our knowledgeable gas monitoring experts. They will be able to walk you through the ordering process quickly and professionally.
Description Part No.
EX-5100 Sensor/Transmitter supplied with magnet and instruction manual 10014-001
