HDK transmitters are designed for detecting and controlling CO₂, temperature and humidity inside ventilation ducts. ABCLogic™ self-calibration method eliminates the possible long term drift.
| Supply | 24 Vac/dc, < 10 VA |
| Range (CO₂) | 0…2000 ppm |
| Range (temperature) | 0…50 °C |
| Range (humidity) | 0…100 %rH |
| Time constant | < 2 min |
| Accuracy (CO₂) | typ. ±40 ppm ±3 % of value |
| Accuracy (temperature) | ±0,5 °C |
| Accuracy (humidity) | ±2 %rH |
| Output | 4 x 0…10 Vdc, 2 mA |
| Protection class | IP54, cable downwards |
| Ambient temperature | 0…50 °C |
| Cable gland | M16 |
| Mounting | in a Ø 10 mm hole, with screws, external lugs |
| Dimensions | 105 x 110 x 155 mm |
| TYPE | ARTICLE | DESCRIPTION |
| HDK | 1135050 | CO₂ duct transmitter |
| HDK-N | 1135051 | CO₂ duct transmitter with display |
| HDK-RH | 1135054 | CO₂ duct transmitter with humidity measurement |
| HDK-RH-N | 1135055 | CO₂ duct transmitter with humidity measurement and display |
| HDK-M | 1135120 | Modbus CO₂ duct transmitter |
| HDK-M-N | 1135121 | Modbus CO₂ duct transmitter with display |
| HDK-M-RH | 1135122 | CO₂ duct transmitter with humidity measurement |
| HDK-M-RH-N | 1135123 | CO₂ duct transmitter with humidity measurement with display |
| HDK 10K | 1135130 | CO₂ duct transmitter, range 0…10000 ppm |
| HDK 10K-N | 1135131 | CO₂ transmitter with display, range 0…10000 ppm |
| HDK 10K-RH | 1135132 | CO₂ duct transmitter with display, range 0…10000 ppm |
| HDK 10K-RH-N | 1135133 | CO₂ duct transmitter with display, range 0…10000 ppm with display |
| HDK 10K-M | 1135140 | Modbus CO₂ duct transmitter, range 0…10000 ppm |
| HDK 10K-M-N | 1135141 | Modbus CO₂ duct transmitter, range 0…10000 ppm, with display |
| HDK 10K-M-RH | 1135142 | Modbus CO₂ duct transmitter with humidity measurement, range 0…10000 ppm |
| HDK 10K-M-RH-N | 1135143 | Modbus CO₂ duct transmitter with humidity measurement, range 0…10000 ppm, with display |
| ML-SER | 1139010 | transmitter commissioning tool |
| HD-R | 1135003 | relay, 24 Vac 1 A |
