**This response time refers to a measurement in air at a constant temperature.
For a correct measurement the temperature of the humidity sensor must be the same as that of the air of which you wish to measure the humidity. Differences in temperature between the sensor and the
air cause errors in measurement because the temperature influences the relative humidity of the air. The higher (or Iower) temperature of the case radiates heat to the sensor.
*This precision refers to measurements Iasting Iess than 15 minutes. If the hygrometric sensor is exposed to humidity IeveIs close to saturation for periods of over 30 minutes an excess deviation
of up to +6% R.H. is measured. This deviation is memorized in the sensor when normal humidity IeveIs return ( Iess than 90% R.H.).
The sensor resumes its original characteristics if it is exposed to humidity IeveIs of Iess than 80% R.H. for about 24 hours.
Probe connection: Input A, DIN 5-poIe connector, humidity and temperature probe Input B, DIN 8-poIe connector, temperature probe.
Battery Iife: 200 hours with an alkaline battery.
Instrument range: -10
The HD 8901 is a portable instrument R670D with interchangeable probes for measuring absolute and relative
The HD 8901 is a portable instrument R670D with interchangeable probes for measuring absolute and relative |
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