HDU – Carbon Dioxide (CO₂) transmitters

Modbus_small

HDU transmitters are designed for detecting CO₂ concentration and temperature in underground parking garages and parking halls. ABCLogic™ self-calibration method eliminates the possible long term drift.

Technical description

Supply 24 Vac/dc, < 10 VA
Range (CO₂) 0…2000 ppm
Range (temperature) -50…50 °C
Accuracy (CO₂) typ. ±40 ppm ±3 % of value
Accuracy (temperature) ±0,5 °C
Output 3 x 0…10 Vdc, 2 mA
Protection class IP54, cable downwards
Ambient temperature -30…50 °C
Humidity 0…85 %rH
Cable gland M16
Mounting with screws, external lugs
Dimensions 105 x 110 x 46 mm

 

Product range

 

TYPE ARTICLE DESCRIPTION
HDU 1135090 CO₂ transmitter for cold spaces
HDU-N 1135091 CO₂ transmitter with display
HDU-M 1135150 Modbus CO₂ transmitter for cold spaces
HDU-M-N 1135151 Modbus CO₂ transmitter with display
HDU-5K 1135160 CO₂ transmitter for cold spaces, range 0…5000 ppm
HDU-5K-N 1135161 CO₂ transmitter with display, range 0…5000 ppm
HDU-5K-M 1135170 Modbus CO₂ transmitter for cold spaces, range 0…5000 ppm
HDU-5K-M-N 1135171 Modbus CO₂ transmitter with display, range 0…5000 ppm
ML-SER 1139010 transmitter commissioning tool

 

Options

 

HD-R 1135003 relay, 24 Vac 1 A