SEP LEM022SJ - Page 11

11 LEM022SJ 2015 V01
Problem
Check
Solution
No light for the
consumption
indicator (PULSE
LED).
Is the load
running?
Is the operating
power too low?
Maybe there is a
fault in the inside
circuit.
Only when load is running, this
LED will flash.
If the operating power is too low,
the spacing interval of flashing
will be prolonged so that people
is under the delusion that LED
isn’t burning.
Contact a qualified technician.
When necessary replace the
meter
The register can’t
run.
Is there power
supplied to inside
the meter ?
Is the operating
power too low?
Maybe there is a
fault in the inside
circuit.
Check that the power supply
indicator ( L1, L2 & L3 LED ) is
burning.
If the operating power is too low,
the spacing interval of running
will be prolonged so that people
is under the delusion that
register can’t run.
Contact a qualified technician.
When necessary replace the
meter
LCD backlight can’t
lit.
Is there a power
supply inside the
meter?
Maybe there is a
fault in the inside
circuit.
Check that the power supply
indicator is burning.
Contact a qualified technician.
When necessary replace the
meter
No pulse output.
Is DC power supply
connected to the
meter?
Is the connecting
correct?
Maybe there is a
fault in the inside
circuit.
Check the external voltage
source (Ui) is 5-27V DC.
Check correct connecting:
connect 5-27V DC to connector
26 (anode), and the signal wire
(S) to connector 27 (cathode).
Please connect with technical
support to replace this meter.
Pulse output rate
wrong.
Maybe there is a
fault in the inside
circuit.
Contact a qualified technician.
When necessary replace the
meter