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12.2 CALIBRATION ERRORS
If an error occurs during calibration, an error message appears in the main display, and the transmitter does not update
the calibration. The calibration errors are Std Err, SLOPE Err LO, and SLOPE Err HI. See Section 12.4 for an explana-
tion of the error messages and suggested ways of correcting the problem.
12.3 TROUBLESHOOTING - GENERAL
Troubleshooting is easy as 1, 2, 3 . . .
Step 1 Look for a diagnostic message on the display to help identify the problem. Refer to Section 12.4 for an explana-
tion of the message and a list of the possible problems that triggered it.
Step 2 Refer to Section 12.5 for common measurement problems and the recommended actions to resolve them.
Step 3 Follow the step by step troubleshooting approach, offered in Section 12.6, to diagnose and correct less common
or more complex problems.
12.4 TROUBLESHOOTING WHEN A DIAGNOSTIC MESSAGE IS SHOWING
The Model 3081 pH/ORP transmitter continuously monitors the measurement loop (sensor and transmitter) for problems.
If a problem is detected, the transmitter displays a fault or error message. The message appears in the temperature/out-
put area of the main display. The table lists each diagnostic message and the section to consult for help.
MESSAGE SECTION
GLASSFAIL 12.4.1
GLASSWArn 12.4.2
rEF FAIL 12.4.3
rEF WArn 12.4.4
CALIbrAtE 12.4.5
tEMP HI 12.4.6
tEMP LO 12.4.6
LInE FAIL 12.4.7
InPUt WArn 12.4.8
SLOPE Err LO 12.4.9
SLOPE Err HI 12.4.10
Std Err 12.4.11
rOM FAIL 12.4.12
CPU FAIL 12.4.12
AdC WArn 12.4.13
CyCLE PWr 12.4.13
WrItE Err 12.4.14
FACt FAIL 12.4.15
MODEL 3081 pH/ORP SECTION 12.0
TROUBLESHOOTING