Carrier SPS - RH Conversion Formulas

Relative Humidity sensors
48 Carrier Sensors
Decrement RH
Output
1 2 3 4 5 6
ON
Allows calibration of the sensor through imbedded calibration
software. Toggle the #1 switch from Off to On to Off again for a
decrease of 0.5% RH.
EXAMPLE
To correct a 1% drift, perform the above toggle sequence
twice.
NOTE
This is a single point calibration and is not recommended for
critical applications. Contact the factory before doing any field
calibration.
Reset to
Original
Calibration
1 2 3 4 5 6
ON
Resets the transmitter to its original factory calibration. Turn switch
#1 and #2 On for a minimum of 5 seconds and then off again.
RH conversion formulas
Use the following table to convert transmitter output signal to %RH.
Output
EXAMPLE:
If signal output is...
Calculation is...
4-20 mA
4 mA = 0% RH
20 mA = 100% RH
12 mA (12mA-4mA)/0.16 = 50% RH
0-10 Vdc
0 Vdc = 0% RH
10 Vdc = 100% RH
8 Vdc 8 Vdc/0.10 = 80%RH
0-5 Vdc
(#OPNSENSRH-01 only)
0 Vdc = 0% RH
5 Vdc = 100% RH
2 Vdc 2 Vdc/0.05 = 40% RH