72-PHW-1034 R2.0 023-0475 Duct CO2 Sensor Spec&Install.docx
RL 2022-02-09
Page 1 de 3
Parker Hannifin Canada
Micro Thermo Technologies
TM
12855 Brault Street
Mirabel, QC J7J 0C4
Office phone 450-668-3033
Technical Data
023-0475 Duct CO2 Sensor specification & installation guide
Precision carbon dioxide
control/sensing
FEATURES:
• 2 Available Ranges
• Automatic Calibration Logic Program
• Analog out and menu driven set-up
• Solid-state reliability
• Small compact size
• Solid, reliable IP65 Polycarbonate enclosure
Description:
The duct CO2 transmitter uses a highly accurate and reliable non-dispersive infrared (NDIR) sensor in an attractive
enclosure with a gasketed, hinged cover for duct applications to monitor CO2 levels. The sensor uses dual
wavelength optics and LTA (long term adjustment) signal processing technology to deliver industry leading long term
accuracy and reliability. These features ensure optimum measurement stability for continual monitoring of either
supply or return air measuring.
Standard features include a field selectable output signal of either 4-20 mA, 0-5 Vdc or 0-10 V dc for the highest
versatility, programmable CO2 measurement span and easy menu operation for configuration.
Do not exceed device ratings. This product is not intended for life-safety applications.
SPECIFICATIONS:
Gas Type Detected
..................................................................................
Carbon dioxide (CO2)
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
Response Time
.............................................................................................
20 seconds (T63)
Warm-Up Time
..........................................................................................................
1 minute
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), 0 to 95 %RH non-condensing
Enclosure
.................................................................. IP65
Polycarbonate UL94-V0 (NEMA 4X)
116mm W x 100mm H x 54mm D (4.6" x 3.9" x 2.1")
Wiring
...............................................................................
Screw terminal block (14 - 22 AWG)
