APPENDIX 1 SERIAL COMMANDS__________________________________________________________
VAISALA _________________________________________________________________________ 85
Calibration commands
CRH Relative humidity calibration
Disconnect the security lock jumper!
CRH <cr>
With this command the transmitters can be calibrated against two RH
references. Two-point calibration is performed using saturated salt solutions in
controlled conditions according to the following instructions:
>CRH <cr>
RH : 12.00 Ref1 ? 11.3 <cr>
Press any key when ready ...
RH : 76.00 Ref2 ? 75.5 <cr>
If the stabilization of the sensor to the humidity in the calibrator needs to be
monitored, the measurement output can be repeated by giving command c<cr>
at Ref1 and Ref2:
>CRH <cr>
RH : 12.00 Ref1 ? c <cr>
RH : 11.70 Ref1 ? c <cr>
RH : 11.50 Ref1 ? 11.3 <cr>
Press any key when ready ...
RH : 76.00 Ref2 ? 75.5 <cr>
CT Temperature calibration
Disconnect the security lock jumper!
CT <cr>
Using this command the transmitters can be calibrated against an accurate
reference, such as a Pt 100 simulator. A two-point calibration is performed as
follows:
>CT <cr>
T : 0.80 Ref1 ? 0.0 <cr>
Press any key when ready ...
T : 56.20 Ref2 ? 55.0 <cr>
To Next Page
Loading...
