ESH-A Remote Sensor

For monitoring: Methane, Propane, Hydrogen, TVOCs

Single analog remote sensor for flexible location monitoring

Key Features

• Allows remote location monitoring of combustible gases or TVOCs
• Current or voltage output signal
• Communicates with many of CETCI’s controllers and transmitters
• Easy to to install and maintain
• Standard water / dust tight, corrosion resistant enclosure (drip proof)
• IP54 rated with optional splash guard installed

The ESH-A Remote Sensor offers flexible location monitoring of combustible gases or PID TVOCs in non-hazardous, 
non-explosion rated, commercial and light industrial applications. It communicates with the device it is attached to 
using current loop into a 100 ohm load or a voltage signal of 0.40 to 2 volts. It can be located at a maximum 
distance of 200 meters from the compatible controller or transmitter.

The mounting height of the ESH-A Remote Sensor depends on the gas being monitored. A gas that is heavier than 
air should be detected 6 inches from the floor and a gas that is lighter should be detected on or near the ceiling. 
A gas that has the same density as air should be detected in the “breathing zone”, where most human breathing 
takes place, which is 1 to 2 m (4 to 6 ft) from the floor.

The ESH-A Remote Sensor comes in a standard water / dust tight, corrosion resistant ABS / polycarbonate enclosure 
with a hinged, secure door and is designed to protect the sensor and provide easy mounting components.

An optional splash guard may be installed to further protect the remote sensor in water spray or washdown 
applications.

The ESH-A Remote Sensor is not a standalone device, it must be used with the SCC, DCC, LPT-A, LPT-P, LPT-M, 
LPT-B or CGAS-D (remote sensor's target gas will differ based on device).

Target Gas

Catalytic Sensors				Hydrogen (H2), Methane (CH4), Propane (C3H8), Acetylene (C2H2), Ethanol or 
                                                Dimethyl ether (C2H6O)

PID Sensors				        TVOCs

Infrared Sensors				Propane (C3H8)

Mechanical

Enclosure					ABS / Polycarbonate, corrosion resistant 
					        Copper coated interior to reduce RF interference 
					        IP54 rated with splash guard installed

Weight					181 g / 0.4 lbs

Size					        127 x 127 x 53 mm / 5.0 x 5.0 x 2.1 inches

Input/Output

Output					Current loop into a 100 ohm load, or 
					        Voltage signal of 0.40 to 2 volts

Electrical

Power Requirement			12 - 24 VDC, 1 W Class 2

Current Draw				45 mA @24 VDC (max)

Wiring					4-conductor 18 AWG stranded, shielded

Environmental

Operating Temperature			-20°C to 40°C (-4°F to 104°F)

Operating Humidity			15 - 90% RH non-condensing

Certifications

Conforms to				        CSA-C22.2 No. 205-12 / UL508 (Edition 17):2007 
					        EMC Directive 2004/108/EC, EN 50270:2006, Type 1, EN61010 
					        FCC. This device complies with part 15 of the FCC Rules. Operation is subject to 
                                                the following two conditions: (1) This device may not cause harmful 
                                                interference, and (2) this device must accept any interference received, 
                                                including interference that may cause undesired operation. 
					        RoHS compliant circuit boards