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- [ External Temperature
/
Humidity Sensor ]
- [ Heavy Duty
Moisture
Meter ]
- [ Humidity
- Temperature
Data logger
HygroLog ]
- [ Humidity-Temperature
Indicating
Probes ]
- [ Humidity
- Temperature
Indicator
A1H ]
- [
Humidity
Temperature
Meteorological Probe
-
MP101A
]
-[ Humidity
Temperature
Meteorological
Probe ]
- [ Humidity &
Temperature Meter ]
- [ Humidity
- Temperature
Transmitters
Calibration
Free FH
Series ]
- [ Leaf Wetness Sensor
]
- [ Portable
Humidity Temperature Indicator - HygroPalm ]
- [ Relative
Humidity
Sensor ]
- [ Temperature
Humidity
Dew Point ]
- [ TH-Calc
Temperature
and Humidity
Meters ]
The Model 083C sensors probe represents sensitivity, accuracy
linearity and stability not encountered with conventional relative
humidity sensors. It is extremely well suited for meteorological,
industrial, laboratory and other demanding applications.
Features
- All solid state construction
- Fast response of less than five seconds
- 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
The Model 083C RH sensor can also be supplied with a Temperature Sensor mounted in it and used with various radiation shields for reliable, accurate measurements.
Operation
The Model 083C Relative
Humidity Sensor is based upon the capacitance change of a polymer thin
film capacitor. A one-micro thick dielectric polymer layer absorbs water
molecules through a thin metal electrode and causes capacitance change
proportional to relative humidity. The thin polymer layer reacts very
fast, and therefore, the response time is very short -- less than five
seconds to 90% of the final value of relative humidity. The sensor
responds to the full range from 0-100% relative humidity. Its response is
ressentially linear, with small hysteresis, and negligible temperature
dependence.
Construction
The sensor is mounted in a
small probe which contains all the electronics necessary to provide an
output for indicating or recording humidity. Since the capacitance change
of the sensor is sensitive only to the ambient humidity, temperature
compensation is not required for most applications. The probe body is
water tight and made from corrosion resistant aluminum. Immersion in water
does not affect the calibration of the sensor.
The polymer material is resistant to most chemicals. The calibration of the sensor is not affected by liquid.
Specifications
- Sensing element: Thin film capacitor
- Range: 0-100% relative Humidity
- Temperature range: -20 to 60°C
- Response time: Less than 15 seconds at 68°F of Final (with filter)
- Accuracy
- 0-10%.........±3%
- 10-90%.......±2%
- 90-100%.....±3%
- Temperature coefficient: 0.04% RH/°C
- Output: 0-1.00 VDC -- standard
- Input power: 4MA at 12 VDC battery
- Dimensions: diameter 0.75", length 7.5"
- Weight: 2.5 oz.
