ETCR ETCR2100A+ - Troubleshooting Guide

-27-
XI.Trouble shooting
Symptoms Possible Causes Remedies
The instrument
cannot be buttoned
on.
No batteries.
Set the batteries.
Faulty battery polarity
Install batteries in correct
polarity.
Insufficient capacity of
battery
Replace the batteries.
Poor contact of battery
contacts
Replace the battery contacts.
Wrong battery type
Replace with right type.
A break in a battery
harness
Make a continuity test of test
lead. If there is no continuity,
replace the battery harness.
Departure of the
POWER button
Re-assemble the button.
Poor contact of powe
r
plug
Re-plug or replace a plug.
Defect of circuit
component
Defect of PCB; when current
consumption is about 100mA
or more at 6V of battery
voltage. Replace the PCB.
Indicating ERROR
(Display “Err”, big
error results or
results unstable)
Insufficien
t capacity of
battery
Replace the batteries.
Contact surface of jaw is
polluted by dust, oil etc.
Clean the surface.
Poor enclose of jaw
Trigger the clamp several times
and then re
-
boot.
Defect of circuit
component
Replace the PCB.
Measure in w
rong steps
Study the manual and follow it.
Incapable
measurement of
resistance
Insufficient capacity of
battery
Replace the battery when “Low
battery” mark is displayed on
the LCD.
Poor enclose of jaw,
indicating “jaw-open”
symbol on LCD
Trigger the clamp several times
and then re-boot.
Contact surface of jaw is
polluted by dust, oil etc.
Clean the surface.
Without self-calibration
before test
Re
-
boot follow the manual,
conduct measurement after
self
-
calibration finished.
Defect of circuit
component
Check above points first. If
there is no problem, replace the
PCB, and do re
-
adjustment.