Rigol DM3068, Service Manual

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Chapter 2 Performance Test RIGOL
Service Guide for DM3068
2-1
Chapter 2 Performance Test
2. 1 Test Type
The performance test is used to check the measurement performance of the
multimeter based on the specifications listed in User’s Guide for DM3068 or
“Specifications” in this book. The DM3068 supports Self-test, Fast test and
Routine Test. Below is the detailed information.
2.1.1 Self-Test
Self-Test is a series of internal calibration tests which can be used reliably to
determine the usability of the instrument.
Self-Test Directions:
Step1: Turn on the meter.
Step2:
Press Utility

T/C

Slftst

Run
t
o start the self-test. When abnormal
situation develops during the test, the beeper makes a sound. The screen
displays “PASS!” which indicates that the hardware of the instrument is
working normally (confidence level>90%) or “FAIL!” when the test
completed.
In Remote mode, sending *TST? will also start the self-test and query its
result. The returned value “0” denotes test passed, while “1” denotes test
failed. The whole test process lasts about 18 seconds and appropriate
interface timeout period may need to be configurated.
Step3:
The error information during the test is stored in the error queue and you
can obtain them through pressing
Utility

T/C

Error (or sending
SYSTem:ERRor?).
Table 2-1 List of possible errors
Error Code Error Information
601
ADC offset too noisy
602
ADC fullscale too noisy
603
ADC gain test failed
604
OHM Common Drive Test
605
DCV Common Drive Test
606
DCI Common Drive Test
607
DC 200V Zero Test
608
DC 1000V Zero Test