GE Moisture Image 1 Series, Service Manual, Page: 42 / 107

June 2003
2-10 Troubleshooting and Maintenance
Screen Messages
The Series 1 has several screen messages that may display during
operation. Refer to Table 2-4 for a list of these messages and the
possible causes.
Table 2-4: Screen Messages and the Possible Causes
Screen Message Possible Cause System Response Action
CHANNEL NOT
AVAILABLE No channel card is installed
at the position selected. None Select a different channel.
NO PROBE Unit has not been configured
for the probe activated. For
example, you will not be
able to display pressure on a
channel where only an M
Series probe is configured. None Make sure the correct probe is acti-
vated as described on page 2-9 of the
Startup Guide .
Connect the required probe.
NOT AVAILABLE The mode and/or units
selected require more data or
need a different probe. For
example, you will not be
able to read %RH with a
moisture probe that does not
have the temperature option None Choose a different mode and/or units
as described on page 2-10 of the
Star-
tup Guide .
Connect the required probe.
MIS NO LINK Communication with a
Moisture Image Series Probe
has failed. The Moisture
Image Series Probe is dis-
connected or damaged. After the Series 1 performs 5
checks, it replaces data with
the following default values:
dew point = -110°C
temperature = 70°C
pressure = 0 psi. Check the Moisture Image Series
Probe connections.
Replace the Moisture Image Series
Probe.
Chan X: MIS BAD
CRC (CRC - Cyclic
Redundancy Check) Communication link with
Moisture Image Series Probe
is established, but data is
intermittent or distorted. After the Series 1 performs 5
checks, it replaces data with
the following default values:
dew point = -110°C
temperature = 70°C
pressure = 0 psi. Check for cable breaks or high electro
magnetic interference (EMI).
Aux Failure! Auxiliary Input has failed or
is not installed. Returns to zero. Check that auxiliary option has been
ordered.
ADC Failure! Primary A/D converter has
failed. Returns to zero. Return unit for service.
f ( ): Invalid User function invalid. User function invalid. Reenter or check user function.
f ( ): Div. by 0 User function attempted to
divide by zero. Error message. Check logic of user function.
fp ( ): Math error User function attempted ille-
gal operation, such as the
square root of -2. Error message. Check logic of user function.
f ( ): Missing # User function has missing
operand for an operator Error message. Check user function.
f ( ): Extra # User function has extra oper-
and or missing operator. Error message. Check user function.
f ( ): Missing Op User function has missing
operator or extra operand. Error message. Check user function.
f ( ): Extra Op User function has extra oper-
ator or missing operand. Error message. Check user function.