SCC Self Contained Controller

2 channel dependable self-contained Controller with flexible internal and/or remote sensor configurations

Features LED indicators and one configurable 4-20 mA input; for monitoring: Carbon monoxide, Nitrogen dioxide, 
Hydrogen, Methane, Propane

Key Features

• Single or dual channel operation
• Flexible internal and/or remote sensor configurations
• LED indicators for Power, Ch1, CH2 and Fault
• Two dry contact relays, 5-amps @240 volts each
• One configurable 4-20 mA input
• Line Voltage (90-240 VAC) or Low Voltage (24 VAC/VDC)
• Internal audible alarm
• Standard water / dust tight, corrosion resistant enclosure (drip proof); IP54 rated with water tight, door
  mounted audible alarm installed

The SCC Self Contained Controller is available in one or two channel configurations for monitoring toxic and/or 
combustible gas types by means of an internal electrochemical Carbon monoxide (CO) or Nitrogen dioxide (NO2) 
sensor and one of three ESH-A remote catalytic combustible sensors used to detect Hydrogen (H2), Propane (C3H8) 
or Methane (CH4). Monitoring of CO or NO2 may also be achieved remotely by combining the SCC with a 4-20 mA 
transmitter such as the LPT-TCO or LPT-END.

The SCC also features two alarm level line voltage relays with field configurable time delays and trigger levels, a field 
selectable internal audible alarm and an LED panel indicating power, channel alarm status and fault conditions.

Automated calibration and other maintenance procedures are simple and easily performed in the field, and our 
proprietary Calibration Extending Firmware (CEF) takes into account the aging of the toxic gas sensors so that less 
frequent calibrations are required in less-critical applications such as parking garages.

Target Gas

Gas Sensors				        Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Hydrogen (H2), Methane (CH4), 
                                                Propane (C3H8)

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

Input/Output

Input					        4-20 mA analog

Output					none

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

Audible Alarm				Standard internal buzzer, rated 76 dB @ 3 m (10 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