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Chapter 8. Troubleshooting
Screen Message
f ( ): Invalid
f ( ): Div. by 0
fp ( ): Math error
f ( ): Missing #
f ( ): Extra #
f ( ): Missing Op
f ( ): Extra Op
f ( ): Too Complex
f ( ): Missing (
f ( ): Missing)
Under Range (See Range
Error Description on
page 50.)
Over Range (See Range
Error Description on page
page 50.)
"Mode" Fault! – "Mode" is
replaced by one of the
available measurement
modes.
Cal Error
92
Table 11: Screen Messages and the Possible Causes (cont.)
Possible Cause
User function invalid.
User function attempted to
divide by zero.
User function attempted illegal
operation, such as the square
root of –2.
User function has missing
operand for an operator
User function has extra operand
or missing
operator.
User function has missing
operator or extra operand.
User function has extra
operator or missing operand.
User function has too many
terms, or the constant has
>23 digits.
User function has unbalanced
parentheses.
User function has unbalanced
parentheses.
The input signal is below the
calibrated range of the probe.
The input signal is above the
calibrated range of the probe.
The input signal from the probe
exceeds the capacity of the
analyzer electronics.
During Auto-Cal,
an internal reference is found to
be outside its acceptable range.
Signal Error has occurred.
System Response
User function invalid.
Error message.
Error message.
Error message.
Error message.
Error message.
Error message.
Error message.
Error message.
Error message.
Alarms and outputs respond as
programmed. Refer to
Chapter 4.
Alarms and outputs respond as
programmed. Refer to
Chapter 4.
Alarms and outputs respond as
programmed. Refer to
Chapter 4.
Alarms and outputs respond as
programmed. Refer to
Chapter 4.
Action
Reenter or check user function.
Check logic of user function.
Check logic of user function.
Check user function.
Check user function.
Check user function.
Check user function.
Check user function.
Add missing parentheses.
Add missing parentheses.
If measurement is not expected to be
below scale, send probe to GE for
evaluation.
Change the measurement units so that
the measurement is within range. For
example, change ppb to ppm. Refer to
page 58. If measurement is not expected
to be above scale, send probe to GE for
evaluation.
If measurement is not expected to be
above scale, check wiring for shorts, and
if none are apparent, send probe to GE for
evaluation.
Make sure the analyzer is grounded
properly.
Make sure the ground bolt is installed on
the channel card.
Remove source of Signal Error and
attempt another Auto-Cal.
Contact GE.
moisture.IQ User's Guide
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