Key Features

• Single or dual channel operation
• Flexible internal and/or remote sensor configurations
• 2 line by 16 character LCD display with LED indicators
• Two dry contact relays, 5-amps @240 volts each
• Two 4-20 mA outputs, can be use for VFD control
• One configurable 4-20 mA input
• Line Voltage (90-240 VAC) or Low Voltage (24 VAC/VDC)
• Door mounted audible alarm, optional water tight version or extra loud version available
• Standard water / dust tight, corrosion resistant enclosure (drip proof); IP54 rated with water tight, door mounted audible alarm installed

Specifications

Target Gas

Gas Sensors

Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Nitric Oxide (NO), Oxygen (O2), Hydrogen Sulphide (H2S), Ethylene (C2H4), Sulphur Dioxide (SO2), Hydrogen (H2), Methane (CH4), Propane (C3H8), TVOCs

Mechanical

Enclosure

ABS / Polycarbonate, corrosion resistant

Copper coated interior to reduce RF interference

IP54 rated with optional splash guard installed

Weight

1.18 kg / 2.6 lbs

Size

254 x 226 x 113 mm / 10.0 x 8.9 x 4.44 inches

User Interface

Display

2x16 character LCD display
LED indicators for “CH1" state, "CH2" state and “FAULT”

LED indicators for "CH1" state, "CH2" state and "FAULT"

Input/Output

SILENCE Push Button

Temporarily clears buzzer / latched relays

Input

4-20 mA analog

Output

4-20 mA analog

Relay

Two internal SPDT dry contact relays rated 5 amps @ 240 VAC

Audible Alarm

Standard internal buzzer, rated 76 dB @ 3 m (10 ft)

Optional: door mounted, water tight buzzer, rated 85 dB @ 60.96 cm (2 ft)

Optional: loud, door mounted buzzer, rated 90 dB @ 30 cm (1 ft)

Electrical

Power Requirement

Low Voltage: 16-30 VDC or 12-30 VAC, 10 W Class 2

Line Voltage: 90 – 240 VAC, 50 -60 Hz

Wiring

Low Voltage: 24 VDC or 24 VAC 2-conductor shielded minimum 18 AWG stranded within conduit

Line Voltage: VAC 3-conductor shielded minimum 18 AWG stranded within conduit

Distance

Maximum 61 m / 200 ft between controller and ESH-A Remote Sensor using minimum 18 AWG stranded within conduit

Fuses

Thermal, resetting

Environmental

Operating Temperature

-20°C to 40°C (-4°F to 104°F)

with internal heater

-40°C to 40°C (-40°F to 104°F)

Operating Humidity

15 - 90% RH non-condensing

Certifications

Conforms to:

CSA-C22.2 No. 205-M1983 (R2009), 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