Chapter 7 ___________________________________________________Calibration and Adjustment
VAISALA____________________________________________________________________ 65
Example:
>li<cr>
RH offset : -0.6000000 ? 0
RH gain : 1.00000000 ? 1
T offset : 0.00000000 ? 0
T gain : 0.40000000 ? 1
>
FCRH Relative Humidity Calibration
after Sensor Change
Syntax: FCRH<cr>
The transmitter asks and measures relative humidity and calculates the
calibration coefficients. This two-point adjustment needs to be
performed after a sensor change. Follow the more detailed calibration
instructions on page 67, but instead of the CRH command, use the
FRCH command.
Example:
>frch<cr>
RH : 1.82
1.
ref ? 0<cr>
Press any key when ready<cr>
RH
:
74.22
2. ref
? 75<cr>
OK
>
The OK indicates that the calibration has succeeded.
CTEXT Set Calibration Information
Text
Syntax: CTEXT<cr>
1.
Remove the transmitter unit from the mounting plate (see
Mounting the Transmitter/
Removing the Transmitter Unit on page 17) and press the
adjustment button once (see Figure 17 on page 67).
2.
Issue command LI and enter value 0 for an offset value and
value 1 for a gain value.
3.
Issue command CTEXT and enter calibration information text.
