DCC Dual Channel Controller

2 channel versatile self-contained Controller with VFD capabilities and flexible internal and/or remote sensor configurations

Features two 4-20 mA outputs and one configurable 4-20 mA input; for monitoring: Carbon monoxide, Nitrogen dioxide, Nitric oxide, Oxygen, Hydrogen sulphide, Ethylene, Sulphur dioxide, Hydrogen, Methane, Propane, TVOCs

Applications

  • Parking Facilities requiring VFD control
  • Recreation Facilities
  • Firehalls
  • and many more...

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

Description

The DCC Dual Channel Controller is a comprehensive and dependable, self-contained system that offers one or two channel configurations for monitoring toxic and combustible gases and PID TVOCs with straight-forward control functionality for non-hazardous, non-explosion rated, commercial and light industrial applications. Sensor configurations include, two internal electrochemical sensors (one must be CO), or one internal electrochemical and one remote catalytic or PID sensor or a remote 4-20 mA transmitter.

Field configurable settings are done through an easy to navigate, comprehensive menu structure. Other features include two 4 - 20 mA outputs that can be used for VFD control, one configurable 4 - 20 mA input, two alarm level line voltage, two SPDT dry contact relays with field configurable time delays and trigger levels, a field selectable integral audible alarm and an LCD display with LED indicators for channel alarm status and fault conditions.

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

The DCC is the big brother to the SCC and offers more features and gas sensor choices.

 

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)
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
Product Codes
DCC-A-TCO
Single channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-A-C2H4
Single channel, internal electrochemical ethylene (C2H4) sensor (0 - 200 ppm range), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-A-H2S
Single channel, internal electrochemical hydrogen sulphide (H2S) sensor (0 - 50 ppm range), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-A-NO2B
Single channel, internal electrochemical 6-year nitrogen dioxide (NO2) sensor (0 - 10 ppm range), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-A-NO
Single channel, internal electrochemical nitric oxide (NO) sensor (0 - 100 ppm range), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-A-O2
Single channel, internal electrochemical oxygen (O2) sensor (0 - 25% volume range), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure 
DCC-A-SO2
Single channel, internal electrochemical sulphur dioxide (SO2) sensor (0 - 20 ppm range), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-B-R
Single channel, no internal sensor (set up to accept an ESH-A remote sensor), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure 
DCC-B-RT
Single channel, no internal sensor (set up to accept remote 4-20 mA transmitter), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure 
DCC-D-TCO-R
Dual channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range), must add ESH-A remote sensor, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure 
DCC-D-C2H4-R
Dual channel, internal ethylene (C2H4) sensor (0 - 200 ppm), must add ESH-A remote sensor, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-D-H2S-R
Dual channel, internal hydrogen sulphide (H2S) sensor (0 - 50 ppm), must add ESH-A remote sensor, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-D-NO2B-R
Dual channel, internal electrochemical 6-year nitrogen dioxide (NO2) sensor (0 - 10 ppm), must add ESH-A remote sensor, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-D-NO-R
Dual channel, internal nitric oxide (NO) sensor (0 - 100 ppm), must add ESH-A remote sensor, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-D-O2-R
Dual channel, internal oxygen (O2) sensor (0 - 25% volume), must add ESH-A remote sensor, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-D-SO2-R
Dual channel, internal sulphur dioxide (SO2) sensor (0 - 20 ppm), must add ESH-A remote sensor, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-D-TCO-RT
Dual channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range), must add remote 4-20 mA transmitter, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-D-C2H4-RT
Dual channel, internal ethylene (C2H4) sensor (0 - 200 ppm), must add remote 4-20 mA transmitter, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure 
DCC-D-H2S-RT
Dual channel, internal hydrogen sulphide (H2S) sensor (0 - 50 ppm), must add remote 4-20 mA transmitter, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-D-NO2B-RT
Dual channel, internal electrochemical 6-year nitrogen dioxide (NO2) sensor (0 - 10 ppm), must add remote 4-20 mA transmitter, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-D-NO-RT
Dual channel, internal nitric oxide (NO) sensor (0 - 100 ppm), must add remote 4-20 mA transmitter, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-D-O2-RT
 Dual channel, internal oxygen (O2) sensor (0 - 25% volume), must add remote 4-20 mA transmitter, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-D-SO2-RT
Dual channel, internal sulphur dioxide (SO2) sensor (0 - 20 ppm), must add remote 4-20 mA transmitter, LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-E-TCO-C2H4
Dual channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range) and internal electrochemical ethylene (C2H4) sensor (0 - 200 ppm), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure  
DCC-E-TCO-H2S
Dual channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range) and internal electrochemical hydrogen sulphide (H2S) sensor (0 - 50 ppm), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-E-TCO-NO2B
Dual channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range) and internal electrochemical 6-year nitrogen dioxide (NO2) sensor (0 - 10 ppm), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-E-TCO-NO
Dual channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range) and internal electrochemical nitric oxide (NO) sensor (0 - 100 ppm), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-E-TCO-O2
Dual channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range) and internal electrochemical oxygen (O2) sensor (0 - 25% volume), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
DCC-E-TCO-SO2
Dual channel, internal electrochemical 6-year carbon monoxide (CO) sensor (0 - 200 ppm range) and internal electrochemical sulphur dioxide (SO2) sensor (0 - 20 ppm), LCD display with LED indicators, two 5A @ 240 VAC SPDT relays, two 4-20 mA outputs, audible alarm, low voltage 16 – 30 VDC or 12 – 28 VAC, 10W, Class 2, line voltage 90 – 240 VAC, 50 – 60 Hz, water / dust tight enclosure
Factory Options
-A
Door mounted, loud audible alarm, rated 90 dB @ 30 cm / 1 ft
-L
Top mounted strobe, red lens, IP65 rated, 6.1 cm dia x 13 cm H / 2.4 in dia x 5.2 in H)
-S
Splash Guard, factory installed, IP54 rating
-T
Built in timer with 7 timer ranges (off durations), with a manual shutoff switch, 24 VDC/VAC
-WA
Door mounted, water tight audible alarm, rated 85 dB @ 60.96 cm / 2 ft
Remote Sensors
ESH-A-CH2-100
Catalytic Hydrogen (H2) remote sensor (0 - 100% LEL), water / dust tight enclosure 
ESH-A-CCH4-100
Catalytic Methane (CH4) remote sensor (0 - 100% LEL), water / dust tight enclosure 
ESH-A-CC3H8-100
Catalytic Propane (C3H8) remote sensor (0 - 100% LEL), water / dust tight enclosure 
ESH-A-SPL
PID TVOC remote sensor (0 - 30 ppm), water / dust tight enclosure 
ESH-A-SPH
PID TVOC remote sensor (0 - 300 ppm), water / dust tight enclosure 
Compatible Analog (4-20 mA) Transmitters
LPT Series
Single channel analog gas detectors for monitoring carbon monoxide, nitrogen dioxide, ammonia, chlorine, ozone or oxygen
LPT-A series
Single channel analog gas detectors for monitoring many different toxic, combustible or refrigerant gases
ART series
Single channel analog infrared refrigerant gas detectors with 0 - 3,500 ppm range
AST-IS series
Single channel, analog, infrared CO2 gas detectors with 0 - 2000 ppm or 0 - 4% vol measurement range
AST-ICD & AST-IHC Series
Single channel, analog, infrared CO2, hydrocarbons, methane and jet fuel vapours gas detectors
CXT-A series
Single channel, analog explosion proof gas detectors for monitoring toxic or combustible gases in hazardous-rated areas

Options, Accessories and More...