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HUMIDISTAT DATA
AUTOCAL PROCEDURE
1. Measure the room humidity near the humidistat with an accurate hygrometer.
2. Turn the humidistat set point dial to match the reading of the hygrometer.
3. Push and hold the Autocal button for more than 3 seconds or until the internal red light turns On
and Off.
SENSOR F
AILURE PROTECTION
The sensor is the most sensitive part of the humidistat and also the most exposed. In the case of a
sensor failure in humidification mode, the humidistat will automatically assume a fail-safe output of 0%.
SPECIFICA
TIONS
Operating Conditions: 5°C to 50°C (32°F to 122°F)
• Control: 0% to 95% R.H. non-condensing
• Sensor: 0% to 100% R.H. (see Note 1.)
Resolution: ± 0.1 %
Repeatability: 0.5 %
Accuracy and sensor interchangeability:
± 2% R.H. from 0 to 100% R.H.
Range: 10% to 90% R.H. for 5 to 50°C
(41°F to 122°F)
Temperature effect: 0.05% / °F
Outputs: Isolated Triac: 30 Vac at ½ A max.*
0 to 5 VDC into 1 KΩ resistance min.
0 to 10 VDC into 2 KΩ resistance min.
0/5 VDC at 20 mA max. for both outputs.
Power: 24 VAC -15%, +10%; 50/60 Hz; 2 VA
Base and casing: Off-white; self extinguishing ABS plastic
* Triac outputs can only switch AC loads. Use relays when switching dc loads.
Note 1. Humidity sensor: Solid state humidity sensor. Suitable for normal, clean air. Not to be used in
corrosive or harmful environment.
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