PRINTED IN C
ANAD
A
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SPECIFICATIONS
Gas Type Detected .................................................Carbon dioxide (CO
2
)
Sensor Type ..............................................................Dual channel non-dispersive infrared (NDIR)
Sensor Accuracy ......................................................± (30 ppm + 3% of measured value)
Measurement Range .............................................0-2000 ppm (default), adjustable 1000-10,000 ppm
Temperature Dependency ..................................±2.5 ppm/
°
C
Response Time ........................................................20 seconds (T63)
Warm-Up Time .........................................................1 minute
Sensor Coverage Area ...........................................100 m
2
(1000 ft
2
) typical
Sensor Life Span......................................................>15 years
Transmitter Accuracy ............................................±0.25% of span
(including linearity, hysteresis and repeatability)
Power Supply ...........................................................24 Vdc ±20% or 24 Vac ±10%
(non-isolated half-wave rectified)
Protection Circuitry ................................................Reverse voltage and transient protected
Input Voltage Effect ...............................................Negligible over specified operating range
Output Signal Type ................................................4-20 mA (3-wire), 0-5 or 0-10 Vdc (field selectable)
Current Consumption ...........................................
Current:
75 mA @ 24 Vdc max, 150 mA @ 24 Vac max
Voltage:
50 mA @ 24 Vdc max, 100 mA @ 24 Vac max
Output Drive @ 24 Vdc .........................................
Current:
550Ω max
Voltage:
10,000Ω min
Ambient Operating Range ..................................0 to 50°C (32 to 122°F), 0 to 95 %RH non-condensing
Storage Conditions ................................................-40 to 70°C (-40 to 158°F)
LCD Display Units ...................................................ppm (CO
2
), °C/°F (optional temperature/setpoint)
Display Range ..........................................................0-10000 ppm, 0 to 50°C / 32 to 122°F
Display Size ...............................................................35mm W x 15mm H (1.4" x 0.6")
Digit Height ..............................................................2-line x 8 character
OPTIONAL TEMPERATURE SENSOR
Type .............................................................................Various Thermistors and RTDs
Accuracy ....................................................................
Thermistors:
±0.2°C (±0.36°F) @ 25°C (77°F)
Platinum RTD's:
±0.3°C (±0.54°F) @ 0°C (32°F)
Nickel RTD's:
±0.4°C (±0.72°F) @ 0°C (32°F)
Range ..........................................................................0 to 50°C (32 to 122°F)
Output ........................................................................2-wire resistive
Relay (Optional 2-wire output) ..........................Form A (N.O.), 2 Amps @ 140 Vac / 30 Vdc
Override Switch (Optional 2-wire output) .....50 mA @ 12 Vdc max
OPTIONAL SETPOINT CONTROL
Type .............................................................................Front panel up/down pushbuttons
Range ..........................................................................±10 resistive steps, range 16 to 26°C in 0.5°C increments or
60 to 80°F in 1°F increments
Midpoint ....................................................................Default 21°C/70°F, programmable 18 to 25°C (64 to 77°F)
Resolution .................................................................Programmable 0.5 / 1°C/°F
Action .........................................................................Programmable direct or reverse acting
Enclosure ...................................................................White ABS, IP30 (NEMA 1)
84mm W x 119mm H x 29mm D (3.3" x 4.7" x 1.15")
Wiring .........................................................................Screw terminal block (14 - 22 AWG)
Approvals ..................................................................CE
Country of Origin .......................................................Canada
Enter the Setup Menu and use the <MENU> key to advance to the “Calibrat” item. Press and hold either
the <UP> or <DOWN> key for 5 seconds to start the gas calibration. The LCD will indicate “Calibrat
/ Done” if the process was successful. If “Calibrat / Fail” is displayed then the process may have to be
repeated. Press the <MENU> key to return to normal operation, shut off the gas supply and remove the
sensor adapter.
DIMENSIONS
84mm
3.3"
58mm
2.3"
82.6mm
3.25"
29mm
1.15"
119mm
4.7"
Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com
IN-GE-CD2RMCXXX-04
