Carbon monoxide transmitter for detecting CO concentration in air
CMT, carbon monoxide transmitter, is an easy-to-use, reliable transmitter for detecting CO gas. It is commonly used to control ventilation in areas where high concentrations of CO may cause serious health problems.
CDT series devices are commonly used to monitor:
• CO2 and humidity levels in offices, public spaces, meeting rooms and classrooms
• CO2 levels of return air in ventilation systems
• incoming air and return air humidity levels in ventilation system
• humidity in various industrial applications
• temperatures in HVAC/R environment
• CDT2000-DC series devices can also be used in applications where there is a constant source of carbon dioxide present (for example hospitals and greenhouses)
Measurement range:
CO2: 400–2,000 ppm
Temperature: 32−122 °F
Relative Humidity: 0–90 %
Accuracy:
CO2: ±40 ppm + 2 % of reading, DC model: 75 ppm or 10 % of reading (whichever is greater)
Temperature: <0.9 °F
Relative Humidity: ±4 % max @32−122 °F and 0–90 % rH
Total error band includes accuracy, hysteresis and temperature effect over 41–122 °F and
10–90 % rH.
Media compatibility:
Dry air or non-aggressive gases
Measuring units:
ppm, °F and %
Measuring element:
CO2: Non Dispersive Infrared (NDIR)
Temperature: Pt1000
Relative Humidity: Thermoset polymer capacitive
sensing element
Environment:
Operating Temperature: 32−122 °F (0−50 °C)
Storage Temperature: -4−158 °F (-20−70 °C)
Humidity: 0 to 95 % rH, non condensing
Case:
Dimensions: 3.93” x 3.57” x 1.26” (99.87 x 90.75 x 31.99 mm)
Weight: 4.82 oz (150 g)
Mounting:
3 screw holes slotted, 11/64” ø (3.8 mm)
Materials:
Case: ABS (UL 94 V-0 Approved)
Protection standard: IP20
Display (Optional)
Touchscreen
Size: 3.05” W x 2.06” H (77.4 x 52.4 mm)
Electrical Connections:
Power Supply: 5-screw terminal block
(24 V, GND, CO2, rH, Temp)
12–24 AWG (0.2–1.5 mm2)
Relay Out: 3-screw terminal block
(NC, COM, NO)
12–24 AWG (0.2–1.5 mm2)
Input: 24 VAC or VDC, ±10 %
Current consumption: max 90 mA (at 24 V) + 10 mA for each voltage output or 20 mA for each current output
CO2 Output signal:
0–10 V, R>1 kΩ
2–10 V, R>1 kΩ
4–20mA, R<500 Ω
Temperature Output signal:
0–10 V, R>1 kΩ
2–10 V, R>1 kΩ
4–20 mA, R<500 Ω
Relative Humidity Output Signal:
0–10 V, R>1 kΩ
2–10 V, R>1 kΩ
4–20 mA, R<500 Ω
Relay Out:
3-screw terminal block
(NC, COM, NO)
12–24 AWG (0.2–1.5 mm2)
SPDT Relay, 250 VAC / 30 VDC / 6 A
Meets requirements for CE marking:
EMC Directive: 2014/30/EU
RoHS Directive: 2011/65/EU
LVD Directive: 2014/35/EU
WEEE Directive: 2012/19/EU
| CDT2000 | CDT2000-rH | ||||
| Description | Model# | Part# | Description | Model# | Part# |
| Carbon dioxide transmitter for room | CDT2000 | 10001 | Carbon dioxide and humidity transmitter for room | CDT2000-rH | 10009 |
| – with display | CDT2000-D | 10002 | – with display | CDT2000-rH-D | 10010 |
| – with relay and display | CDT2000-1R-D | 10003 | – with relay and display | CDT2000-1R -rH-D | 10011 |
| – with Modbus configuration and display | CDT-MOD-2000-D | 10004 | – with Modbus configuration and display | CDT-MOD-2000-rH-D | 10012 |
| -with Modbus configuration, relay and display | CDT-MOD-2000-1R-D | 10005 | -with Modbus configuration, relay and display | CDT-MOD-2000-1R-rH-D | 10013 |
| – with dual channel sensor | CDT2000-DC | 10207 | – with dual channel sensor | CDT2000-DC-rH | 10212 |
| – with dual channel sensor, and display | CDT2000-DC-D | 10208 | – with dual channel sensor, and display | CDT2000-DC-rH-D | 10213 |
| – with dual channel sensor, relay and display | CDT2000-DC-1R-D | 10209 | – with dual channel sensor, relay and display | CDT2000-DC-1R-D | 10214 |
| – with Modbus configuration, dual channel sensor and display | CDT-MOD-2000-DC-D | 10210 | – with Modbus configuration, dual channel sensor and display | CDT-MOD-2000-DC-rH-D | 10215 |
| – with Modbus configuration, dual channel sensor, relay and display | CDT-MOD-2000-DC-1R-D | 10211 | – with Modbus configuration, dual channel sensor, relay and display | CDT-MOD-2000-DC-1R-rH-D | 10216 |
