Operation Manual

GMC-I Messtechnik GmbH 35
Attention High-Voltage!
Touc h neither the test probes nor the device under test
during the high-voltage test!
Life endangering high-voltage of up to 5.3 kV is present at the
test probes of the high-voltage module!
Ð Pull the trigger of the identified high-voltage switching pistol to
the limit stop and hold.
• The following values and symbols appear at the LCD:
U
T
= acquired voltage value
I
T
∼ 00.0 mA or 0.00 mA
• After the specified test time has elapsed, test voltage is
switched off automatically and the
following appears:
• If the trigger (switch) is release prematurely, the test is aborted.
c) Shutdown Functions
Ð Short circuit the two high-voltage pistols.
Ð Pull the trigger of the identified high-voltage switching pistol to
the limit stop and hold.
• The instrument is shut down immediately.
• The green signal lamps must light up, and the red signal lamps
may not light up.
• The following values appear at the LCD:
U
T
= XXX V
I
T
= > XXX mA
The last voltage value measured before interrupting current was exceeded
and breaking current limit value I
MAX
are displayed.
The following symbols appear:
d) Power Failure
Ð Press the START key.
• The red signal lamps must light up.
Ð Set the key switch to the “0” position and wait at least 1 sec-
ond.
Ð Set the key switch to the “I” position.
• The green signal lamps must light up, and the red signal lamps
may not light up.
e) Indicator Signals
Signal Lamps
Two lamps are included on the test instrument, arranged
diagonally, for the indication of operating states. If both “ready for
operation” lamps (red) go out, test voltage is no longer generated.
Do not start voltage testing unless all signal lamps indicate correct
operation.
Replace defective lamps as described in chapter 10.6 under
“Maintenance”.
Acoustic Signals (acoustic signal “on” or “measuring mode operation”)
Refer to chapter 3.7.3 on page 24 regarding activation.
0
t [s]
1
2
3
0
t [s]
1
2
3
0
t [s]
1
2
3
Ready
Test in Progress
I
T
>I
MAX
Repetitive sequence
Single sequence
Repetitive sequence