PRECISION DIGITAL PD6720 Series, Инструкция по эксплуатации

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PD6720 Field-Mount Loop-Powered Rate/Totalizer
Instruction Manual
23
Troubleshooting
Due to the many features and functions of the meter, it’s possible that the setup of the meter does not agree with
what an operator expects to see. If the meter is not working as expected, refer to the
Diagnostics menu and consult
the recommendations described below.
Troubleshooting Tips
Symptom Check/Action
No display or faint display Check input signal connections.
Perform hard reset by shorting S+ and S- terminals.
Rate display unsteady Increase filter setting in Advanced menu.
Meter displays error message during calibration
(
Span
eRROR
)
Check signal connections.
Verify minimum input span requirements.
Meter flashes 99999 or -9999 Check input signal is within scaled range of 99999 and -9999.
Display stuck displaying MAXIMUM or MINIMUM Press Menu to exit Max/Min display readings.
Display response is too slow Check filter setting to see if it can be lowered to
LO
or
OFF
.
If the display locks up or the meter does not
respond at all Perform hard reset by shorting S+ and S- terminals.
Backlight does not appear. Backlight is intended for viewing assistance in dim lighting
conditions. It may not be noticeable under good lighting conditions.
Check connections are as shown in Figure 5. Connections with
Loop-Powered Backlight or Figure 6. Connections with Externally-
Powered Backlight on page 9 .
SafeTouch buttons do not respond
Service menu was selected, or mechanical button was pushed.
The SafeTouch
buttons will be re-enabled automatically
60 seconds after the last button push.
If slide switch on connector board is in Lock position,
switch to Unlock.
Sunlight can interfere with the sensors. It is recommended to shield
the window from sunlight while operating the buttons by standing so
as to block direct sunlight.
Other symptoms not described above Call Technical Support for assistance.