Vaisala HMT130 - Manual (Page 40)

User's Guide _______________________________________________________________________
38 ___________________________________________________________________ M211280EN-B
Restore Probe T Factory Calibration
Use the CTCLR to restore the probe T factory calibration.
CTCLR<cr>
Example:
>ctclr
OK
>
Calibrate Analog Output
Use the ACAL command to calibrate the analog voltage outputs.
ACAL<cr>
After you give this command, the CH1 analog output of the transmitter
is set to the low limit (0V). Measure the output and enter the measured
value. After entering the low limit, you must measure and enter the high
limit also (for example 10V, depends on the output mode of the
channel). The same procedure is then repeated with CH2.
Calculated coefficients are printed after the measured values are given.
Example:
>acal
Ch1 V1 (V) ? 0.11
Ch1 V2 (V) ? 10.21
1.92308600E+02 a0
2.58811860E+03 a1
OK
Ch2 V1 (V) ? 0.11
Ch2 V2 (V) ? 10.20
1.92024420E+02 a0
2.59068400E+03 a1
OK
NOTE Question mark is displayed after certain stabilization time has expired.
Values should be entered only after question mark is displayed. Values
entered before question mark will be discarded.