LI5X Process & Temperature Meter Instruction Manual
69
Troubleshooting Tips
Symptom Check/Action
No display at all
Check power at power connector
Not able to change setup or pro-
gramming,
LoCd
is displayed
Meter is locked, enter correct four-digit
password to unlock
Meter displays error message
during calibration (
err
)
Check:
1. Signal
connections
2.
Input selected in
Setup
menu
3.
Minimum input span requirements
Meter displays
•
open
•
9999
•
-1999
•
Displays negative number,
not responding to RTD.
Check:
1.
Input selected in
Setup
menu
2. TC/RTD
Switch
position
3.
Corresponding signal at Signal
connector
Display alternates between
1.
Hi
and a number
2.
Lo
and a number
Press
Menu
to exit Max/Min
display readings.
Display response is too slow
Check filter and bypass values
Inaccurate temperature reading
Check:
1.
Temperature units (
°
F or
°
C)
2.
TC type or RTD curve selected
3. Offset
adjustment
4. TC
wire
used
5. Calibration
If the display locks up or the meter
does not respond at all
Cycle the power to reboot the
microprocessor.
Relay operation is reversed
Check:
1. Fail-safe
in
Setup
menu
2.
Wiring of relay contacts
Relay and status LED do not
respond to signal
Check:
1.
Relay action in
Setup
menu
2.
Set and reset points
Meter not communicating with
MeterView
®
or other programs
Check:
1.
Serial adapter and cable
2.
Serial protocol selected
3.
Meter address and baud rate
4.
MeterView address and baud rate
Other symptoms not described
above
Call Technical Support for
assistance.
Spec Tech Industrial Electric
www.spectechind.com
888-773-2832
Spec Tech Industrial Electric
www.spectechind.com
888-773-2832