CO2

CARBON DIOXIDE TRANSMITTERS
CDT-MOD-2000 Series
Multifunctional, wall mount CO2 transmitters for building automation
systems that use Modbus serial communication protocol
The CDT-MOD-2000 series air quality transmitters are engineered
for building automation systems in the HVAC/R industry. The CDTMOD-2000 series measures carbon dioxide (CO2), utilizing the industry standard NDIR measurement principle, and temperature (T). Optional relative humidity (rH) measurement is also available in the same
device. The CDT-MOD-2000 series devices are available with large
touchscreen display making the configuration of the device quick and
easy. Configuration is also possible via Modbus network.
CDT-MOD-2000 series devices include:
• Separate eld congurable Modbus output for each measurement
parameter (CO2, rH, T)
• One analog output for selected measurement: voltage (0/2–10 V)
or current (4–20 mA)
• Optional relay output
The versatility of the CDT-MOD-2000 series air quality transmitters
ensures that the right product for your application is available.

APPLICATIONS
CDT-MOD-2000 series devices are commonly used to monitor:
• CO2 and humidity levels in offices, public spaces, meeting rooms
and classrooms
• humidity in various commercial applications
• temperatures in HVAC/R environment

MODEL SUMMARY

CDT-MOD-2000

CDT-MOD-2000-rH

Description

Model

Product code

Description

Model

Product code

Carbon dioxide transmitter for room with

CDT-MOD-2000-D

301.001.004

Carbon dioxide and humidity transmitter for

CDT-MOD-2000-rH-D

301.003.004

CDT-MOD-2000-1R-rH-D

301.003.005

Modbus configuration and display
- with relay

Copyright HK Instruments 2014

room with Modbus configuration and display
CDT-MOD-2000-1R-D

301.001.005

- with relay

www.hkinstruments.fi

Datasheet Version 1.0 2014