Omega Engineering OMB-CHARTSCAN 1400, User Manual

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ChartScan User’s Manual Calibration 6-11
1. If the calibration password has not been changed, enter
K12345
. If the password has been changed,
enter the K command and the current password. This enables the calibration mode.
2. Type
U2X
to verify calibration mode.
U128
should appear, indicating the unit is in calibration mode.
3. Type
H1X
. The Trigger LED will flash, indicating that offset calibration is in progress for Channel 1.
4. Type
U2X
.
U128
should appear, indicating the unit is in calibration mode and no errors have occurred.
Response codes and meanings applicable to calibration are as follow:
Response to
U2X
Indication for Calibration Mode
U128
No error
U129
Read Failure (EEPROM Error)
U130
Write Failure (EEPROM Error)
U132
Chksum Err (EEPROM Error)
U136
Cal Err (offset, gain, or temperature sensor out of range)
U144
Invalid password
U160
Invalid command
10. Repeat steps for each additional calibration channel, using the
H
command, channel number and
X
.
11. When offset calibration is complete for all cards, remove the shorting connectors.
12. Reinstall original card connectors as applicable.
You are now ready to perform gain calibration for the signal conditioning cards, as described in one or both
of the following two gain calibration sections. The first gain section is for low volts cards (including the
CSN14/TC/P card); while the second gain section applies to the high volts card, CSN14/HV/S.