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Chroma 19020 - Page 35

Chroma 19020
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Operation
4-9
immediately after test time ends
without waiting for the high voltage
discharge to end.
2. When EOT set to TEST, it means
nEOT and PASS_FAIL signals act
after the high voltage discharge ends.
11
DISCH. Vmin
<Prompt 1>
ON/OFF OFF
When set to ON, the discharge circuit will
discharge to the voltage lower than safe
voltage.
When set to OFF, the discharge circuit
will discharge to safe voltage.
12
AC OFFSET
<Prompt 2>
0.001~ 2.5mA
0.001mA
1. When the offset is bigger than the AC
OFFSET setting, current reading
measured currentoffset.
2. When the offset is smaller than AC
OFFSET setting, current reading =
(measured value)
2
(offset)
2
1. The DISCH. Vmin setting is only valid when the EOT is set to TEST.
When EOT is set to TIME, the tester will end the testing without
discharge, thus the DISCH. Vmin is invalid.
2. For 12. AC OFFSET in 30uA current measurement range, the
deduction of OFFSET is always current value = measured current
offset.
Setting DEF. CHANNELS:
Move the highlight to DEF. CHANNELS and press Function Key [SETUP] to go to DEF.
CHANNELS setting screen as shown below:
TEST CONTROL
FRAME
0
1
2
3
4
5
6
7
8
9
NEXT FRAME
CH
01
02
ON
03
04
OFF
05
06
07
08
09
10
EXIT
Remote
Lock
offset
Error
Press , move the highlight to channel to be set and press Function Key [ON] [OFF] to
enable or disable it. Use Function Key [NEXT FRAME] to move the highlight to next FRAME.
Please follow the model to set the output channel, for instance, the 19020
can set the output channel to CH1~CH10 while the 19020-4 can only set
the channel to CH1~CH4. The message line on the test screen will show
Module Fail” if set otherwise and the test is unable to start.

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