Humidity Sensor THGR918N
Replacement Sensor Element
Specification
Packaged in a 2-pin in-line
package
Dimensions 15 x 9 x 4mm
(body), lead spacing 2.54mm
Rated
voltage 1V rms
Rated
current 0.2mA
Operating frequency
range 0.5 to 2kHz
Operating temperature
range 0°C to +60°C
Operating humidity
range 90% RH
Impedance range @ 60% RH
25°C 14.2 to 38.5kO
Humidity
accuracy –5 to +5% RH
Hysteresis @ 40 to 80%
RH 2% RH
Temperature dependence
(ref.) 0.6% RH/°C
The humidity
Sensor on the Oregon weather station deteriorates over time I
found
a replacement
component even though the specifications say it goes to 90%
humidity
when testing
it goes to 98% exactly the same spec as in the manual..
The
replacement looks more substantial, it is housed in a black plastic case it was
very
easy to
replace all I did was to carefully desolder the old component off the
circuit board,
then solder
in the new component. Testing after reassembly I took a very damp cloth and
loosely
wrapped it around plastic sensor, assembly within approximately 5
minutes.
The reading
on the display was 98%.
