DataLoop™ LI25 Level Controller
Instruction Manual
36
MN301034 rev D
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 Check/Action
No display or faint display
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.
Rate display unsteady
Increase filter setting in
Advanced
menu.
Not able to change setup or
programming, Locd is displayed
Meter is locked, enter correct five-digit
password to unlock.
Meter displays error message during
calibration (error)
Check:
1. Signal
connections
2.
Minimum input span requirements
Meter displays
1. 99999
2. -99999
Check:
1.
Input signal within range.
2.
When using square root or
programmable exponent, cutoff must be
zero or greater.
Display stuck showing a number and
MAX or MIN
Press
Menu
to exit Max/Min
display readings.
Display response is too slow
Check filter and bypass values to see if they
can be lowered.
If the display locks up or the meter does
not respond at all
Perform hard reset by temporarily shorting S+
and S- terminals for a few seconds and then
removing short.
Display shows blurry, hard-to-read
digits in below freezing temperatures
(less than -18°C or 0°F).
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.
Other symptoms not described above
Call Technical Support for
assistance.
