Chroma 19020 - Page 18

Multi-Channel Sync Hipot Tester 19020/19020-4/19021/19021-4/19022/19022-4
User’s Manual
2-2
10GΩ~50GΩ: ± (10% of reading + 1% of full scale)
< 500V:
1MΩ~1GΩ: ± [3% of reading + (0.2 x 500V /Vs)% of full
scale]
Test time
0.03 – 999.9 sec., and Continuous (IR: 0.3 – 999.9 sec.)
Ramp time
0.1– 999.9 sec., and OFF
Fall time
0.1– 999.9 sec., and OFF
 OSC – Contact Check
Test voltage level
Less than ac 100V
Test frequency
600Hz
No contact judge
Measured capacitance comparison.

Other functions
Display
320 x 240 dot matrix, blue, LED back light.

Compensation (Correct)
Open circuit
Leakage current offset compensation for WVAC, WVDC,
and IR testing

PASS/FAIL System
Indication, alarm
PASS : (Short Sound)
FAIL : High/Low Fail (WV, IR)
ARC Fail (WV)
Open/Short Fail (OSC)
System Error

Memory Storage
Save/Recall
30 instrument setups with up to 10 test steps can be stored
into and recalled from the internal memory.
Key lock
Front panel keys can be locked to prevent undesired
operation.

Interface
GPIB (Standard)
Complies with tested values and comparator decision results
can be stored and output.
RS232 (Standard)
Standard: RS232, The programming language is SCPI.
Data buffer: One set of tested IEEE488.1 and 488.2. The
programming language is SCPI.
Data buffer: One set of values and comparator decision
results can be stored and output.

Handler interface (Standard)
Judge result (O/P)
Output channels Pass/Fail, Total Pass/Fail (Lo: Pass , Hi:
Fail)
nEOT: Low active
Control signal
Start trigger (I/P): Falling edge trigger.
Stop Testing (I/P): Falling edge trigger.
Memory recall(I/P): 7 sets
Power supply
Internal
+Vint: 5V, 40~60mA limit current.
Common Int.
External
+Vext: +3V~+26V allowable.
Common Ext.

Indication, alarm
PASS(short Sound)
FAIL: High, Low, ARC, System Error(Long Sound)