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1000 PPM CALIBRATION
Connect the 1000 ppm CO
2
gas bottle and apply the gas as before. The CO
2
reading on the LCD will begin
to approach 1000 ppm. Wait 1 to 2 minutes until the CO
2
reading stabilizes.
Enter the Setup menu and use the <MENU> key to advance to Calibrat 1000 PPM. Press and hold the
<SAVE> key for 2 seconds and the display will change to Waiting Calibrat then to Waiting 5 minute
to indicate that the device is calibrating. Again, this process takes about 5 minutes. When calibration
is complete the unit will display the ppm and Cal Done. Press the <SAVE> key to return to normal
operation and shut the gas off.
20,000 PPM CALIBRATION
Connect the 20,000 ppm CO2 and apply the gas as before. The LCD will begin to approach 20,000 ppm.
Wait 1 to 2 minutes until the CO2 reading stabilizes.
Enter the Setup menu and use the <MENU> key to advance to Calibrat 20,000 PPM. Press and hold the
<SAVE> key for 2 seconds and the display will change to Waiting Calibrat then to Waiting 5 minute.
Again, wait 5 minutes and when calibration is complete the unit will display the ppm and Cal Done. Press
the <SAVE> key to return to normal operation and shut the gas off.
Disconnect the tubing and replace the cap on the sensor chamber as calibration is complete.
SPECIFICATIONS
Power Supply ...........................................................20 - 28 Vac/dc (non-isolated half-wave rectified)
Consumption ...........................................................100 mA max @ 24 Vdc, 185 mA max @ 24 Vac (with all options)
Output Signals .........................................................4-20 mA active (sourcing), 0-5 Vdc or 0-10 Vdc (field selectable)
Output Drive Capability .......................................
Current:
550Ω maximum
Voltage:
5,000Ω minimum
Protection Circuitry ................................................Reverse voltage protected, over-voltage protected
Operating Conditions ...........................................0 to 50°C (32 to 122°F), 0 t 95 %RH non-condensing
Wiring Connections ...............................................Screw terminal block (14 to 22 AWG)
Sensor Coverage Area ...........................................100 m
2
(1000 ft
2
) typical
Enclosure ...................................................................Wall mount enclosure, 84mm W x 119mm H x 29mm D
(3.3" x 4.7" x 1.15")
Approvals ..................................................................CE
Country of Origin .......................................................Canada
CO2 SIGNAL
Measurement Type ................................................Dual-Wavelength, Non-Dispersive Infrared (NDIR)
diffusion sampling
Measurement Range .............................................0 to 20,000 ppm, programmable span
Standard Accuracy .................................................±75 ppm or 10% of reading (whichever is greater)
Temperature Dependence ..................................0.2 %F.S. per °C
Stability ......................................................................<5 %F.S. or <10% reading annual
Pressure Dependence ...........................................0.135% of reading per mm Hg
Altitude Correction ................................................Programmable from 0 to 5000 ft via keypad
Response Time ........................................................<2 minutes for 90% step change
Warm-up Time .........................................................<2 minutes
LCD DISPLAY
Resolution .................................................................1 ppm CO
2
Size ...............................................................................35mm x 15mm (1.4" x 0.6") alpha-numeric 2 line x 8 character
OPTIONAL TEMPERATURE SENSOR
Sensing Element .....................................................Various RTDs and thermistors available as
2-wire resistance output
CONTACT RATINGS
Contact Ratings .......................................................Form A contact (N.O.), 2 Amps @ 140 Vac, 2 Amps @ 30 Vdc
Relay Trip Point ........................................................Programmable via keypad
Relay Hysteresis.......................................................Programmable via keypad
OPTIONAL MANUAL SWITCH
Type .............................................................................Front panel, momentary pushbutton
Ratings ........................................................................50 mA @ 12 Vdc, N.O., SPST
Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com
IN-GE-CDD4B1XXX-01 05/20
