Table of Contents
Advertisement
LI25 Series Loop-Powered Meters
TROUBLESHOOTING
The rugged design and the user-friendly interface of the meter should
make it unusual for the installer or operator to refer to this section of the
manual.
If the meter is not working as expected, refer to the recommendations
below.
Troubleshooting Tips
Symptom
No display or faint display
Rate display unsteady
Not able to change setup or
programming, Locd is displayed
Meter displays error message
during calibration ( error )
Meter displays
•
99999
•
-99999
Display stuck showing a number
and MAX or MIN
Display response is too slow
If the display locks up or the meter
does not respond at all
Display shows blurry, hard-to-read
digits in below freezing
temperatures (less than -18°C or
0°F).
Other symptoms not described
above
Check/Action
1.
Check connections.
2.
Increase contrast setting in
Advanced menu.
3.
Perform hard reset by temporarily
shorting S+ and S- terminals for a
few seconds.
Increase filter setting in Advanced
menu.
Meter is locked, enter correct five-digit
password to unlock.
Check:
1.
Signal connections
2.
Minimum input span requirements
Check:
1.
Input signal within range.
2.
When using square root or
programmable exponent, cutoff
must be zero or greater.
Press Menu to exit Max/Min
display readings.
Check filter and bypass values to see if
they can be lowered.
Perform hard reset by temporarily
shorting S+ and S- terminals for a few
seconds and then removing short.
Increase the filter setting to 10 or
greater and the bypass setting to 50 or
greater. This will slow the display
response rate, but digits will be steady
and appear more clearly.
Call Technical Support for
assistance.
36
Instruction Manual
Advertisement
Table of Contents
