083E Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – All solid state construction, digital electronics

083E ^{Relative Humidity Sensor}
The 083E Relative Humidity Sensor is a highly sensitive and stable temperature measurement
tool that provides outstanding accuracy. It is reliable in the full range of relative humidity condi-
tions, from 0-100%, performing equally well in meteorological, industrial, laboratory and other
demanding settings.
This model is also available with a mounted temperature sensor, and can be used with a variety
of radiation shields.
FEATURES
• All solid state construction, digital electronics
• Fast response of less than 5 seconds to 90%
of final value
• Low power consumption of 4 mA at 12 VDC
• Easily cleaned using distilled water
• 0-1V output for 0-100% RH
• Will operate from a 12 VDC battery
Construction
– The sensor is mounted on a small probe, which
measures, records and displays humidity levels
– Because the sensor measures only ambient
humidity, in most settings temperature
compensation is unnecessary
– The probe body is water tight and made from
corrosion resistant aluminum
– Immersion of the sensor element in water does
not adversely affect the calibration
Operation
The 083E Relative Humidity Sensor measures
variance in the capacitance change of a one-
micron thick dielectric polymer layer.
This film absorbs water molecules through a metal
electrode, and causes capacitance change propor-
tional to relative humidity. The thin polymer layer
reacts very quickly, providing up to 90% of the final
value of relative humidity in fewer than five seconds.
The sensor’s response is essentially linear, with small
hysteresis, and negligible temperature dependence.
083E Relative Humidity Sensor
Met One
Instruments, Inc.
1600 Washington Blvd.,
Grants Pass, OR 97526
Tel [phone]
Fax [phone]
[e-mail]
SPECIFICATIONS
Power
Input Power:
RELATIVE HUMIDITY
Sensing Element:
Range:
Temperature Operation Range:
Response Time:
Temperature Coefficient:
Accuracy:
Output:
TEMPERATURE
Temperature Sensor:
Temperature Operation Range:
Accuracy:
Output:
4 mA at 12 VDC (10-14 VDC)
Thin film polymer capacitor
0 - 100% relative humidity
-50°C to +50°C (-58°F to 122°F)
10 sec. with 2 m/s aspiration
0.04% RH/°C
±2.0% from 0 – 100% humidity
0 to 1 VDC – Standard (0 to 5.0 VDC Optional)
Themistor (precision multi-element)
-50°C to +50°C (-58°F to 122°F)
±.10°C (0.18°C)
Resistive