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...

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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
Jumper configurable 0-10v or 2-10v output
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 or jumper configurable 0-10v / 2-10v output 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.

Note: The DCC is not available with an internal heater.

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”

Input/Output

SILENCE Push Button

Temporarily clears buzzer / latched relays

Input

4-20 mA analog

Output

Two 4-20 mA analog (default)
Jumper configurable 0-10v or 2-10v

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

-SW

Manual Shutoff Switch (for emergency electrical shutdown, ventilation purge and to meet B52 code requirements)

-WA

Door mounted, water tight audible alarm, rated 85 dB @ 60.96 cm / 2 ft

Remote Sensors