HDH-RH-N

HDH-RH-N transmitters are designed for measuring and controlling carbon dioxide concentration, temperature and humidity in room spaces. The measurement values scroll on the N model display. The wanted value can be locked to view continuously. ABCLogic™ self-calibration method eliminates the possible long term drift

Technical data:
• Supply: 24 VAC/DC (22…28 V), < 2 W • Carbon dioxide measurement: • Range: 0…2000 ppm • Accuracy (25 °C): typ. ±40 ppm +3 % from reading (ABCLogic™) • Long term stability / year: < 2 % FS (ABCLogic™) • Time constant: < 2 min • Temperature measurement: • Range: 0...50 °C • Accuracy (25 °C): ±0.5 °C • Humidity measurement (RH models): • Range: 0…100 %rH • Accuracy (25 °C) • Outputs: 0…10 V, < 2 mA • Operating conditions: • Temperature: 0...+50 °C • Humidity: 0...85 % RH (non cond.) • Housing: IP20, ABS plastic • Mounting: on the wall surface or on the standard flush mounting box (60 mm hole distance) • Dimensions (w x h x d): 87 x 86 x 30 mm