Chroma 11210 - Page 63

Setting for Operation
5-23
Line Frequency
Integration Time
50Hz 1 ms 4 ms
1PLC*
(20 ms)
100 ms 500 ms
Self-defined Time **
1ms~9.999s
60Hz 1 ms 4 ms
1PLC*
(17 ms)
100 ms 500 ms
Self-defined Time **
1ms~9.999s
*PLC: Power line cycle
** S
elf-defined time: According to five kinds of fixed integration time to read several
times of measurements on Test Time phase. For getting more accurate, stabl
e
measurement, “Self-defined Time” method is provided to process measurement
reading.
(
6) Charge Time
:
It sets charge time with the range from 5ms to 99.999s. The factory default is 20ms
when shipped.
(
7) Dwell Time:
It sets dwell time with the range from 5ms to 99.999s. The factory default is 20ms
when shipped.
Range
20mA
2mA
200uA
20uA
2uA
200nA
20nA
Rseries
1Ω
10Ω
10Ω
1kΩ
1kΩ
100kΩ
1MΩ
Dw
ell Time= 10 x ((C
DUT
+0.1uF) x Rseries)
Ex.: C
DUT
= 1uF Range = 20uA
Dwell Time = 10x (1.1uFx1kΩ) = 0.011sec
Dwell Time setting is 0.011sec.
When the calculated Dwell Time is less than 5ms, it is always set to 5ms.
(
8) Test Time
:
It
sets the range of test time from 5ms to 99.999s or 0ms (continue tests). Th
e
factory default is 20ms when shipped.
1. When Test Time is set to 0ms, it means continuous test without
time limit (∞).The test will be stopped in the following conditions. (1)
Measurement abnormality occurred during DUT measurement
period. (Ex.: Compare fail, Contact check fail or Partial discharge
detection fail.) Press STOP key on the panel, stop the test
manually.
2. When the PD Analyzer card is in use with BDV function enabled,
the analysis chart can provide a maximum of 300s test time.
Total Test Time = [(Charge Time+Dwell Time+Test time)+Rest
Time] * (Step Count)
CAUTION