14
off and remove the wire.
VII. Problems and Solutions
1. Instrument problems and solutions
No.
Problem
Reason
Solution
1
Power light is off work
The battery voltage is less
than 12V
Please charge timely
2
Shell discharge
The instrument has not be
grounded
Safe ground!
3
Charge time is more
than 8 hours, but the
indicator light has not
turned green.
Battery damage
Remove
the
battery,
renew a set of batteries.
4
No HV output
Due to overload the dynatron
is burned out
Replace power dynatron
BU406 and its prepositive
dynatron C2482
5
Output voltage is high,
and you cannot adjust.
Amplifier damage
Replace CA3140 op amp
on high-voltage circuit
board.
6
Resistance displays a
fixed value -1 or other
fixed value.
Amplifier damage
Replace double integral
AD conversion Manifold
7
Resistance
readings
swings
or
out-of-tolerance
Most are caused by strong
interference, such as strong
discharge, measured cable
swinging
or
insulating
property error
Use reference resistance
to check.
2. The battery charging circuit of the instrument is charged according to
the constant voltage and current limiting charging method. It takes about 6-8
hours to fully charge each time. The fully charged battery can supply the
instrument for 6-8 hours of continuous operation. In order to ensure the battery
life, the storage period of the instrument shall be charged once every three
months.
