Omega Vehicle Security freedom OM-550 - Manual (Page 35)

OM-550 u 30 u
4.12 CALIBRATION MODE
The OM-550 includes a Cold-Junction Compensation network server that is
automatically disabled during temperature calibration. Calibration mode temperature
measurements performed in the usual manner will appear abnormal with the OM-550 in
the CAL mode.
When the OM-550 is in the CAL mode, the time and date are printed with additional
characters:
Figure 4-7
To return to Normal mode:
•
Turn the unit “OFF”, then back “ON”.
•
Reprogram the unit, answering NO to the "CAL Mode?" prompt.
•
Perform a Manual Reset.
When unattended for about 1 minute, the OM-550 normally turns “OFF” (Power-
save mode). This operation is different in the CAL mode: the unit does NOT
automatically turn “OFF”.
Tadjust is cleared to 00.0 when entering the CAL mode and must be reprogrammed
when the unit is returned to the Normal mode. See APPENDIX A: CALIBRATION for
more information.
UNUSUAL FORMAT DENOTES CAL MODE