HP E1563A, Руководство пользователя, Страница: 93 / 166

Digitizer Command Reference 93
Gain DAC Test (self-test numbers 63-66)
(HP E1564A 4-Channel Digitizer)
Uncalibrated Gain Test (self-test numbers 67-94)
(HP E1564A 4-Channel Digitizer)
:TST[:RESults]?
TEST:TST[:RESults]? returns an array of integers that result from the self-test
command *TST?.
Comments
•
A response of “0” indicates there is no error.
•
Use the TEST:ERR? <test_number> command to retrieve details about the
failed test number(s) returned by the TEST:TST:RESults? command.
BCD weight Failure mode
1 DAC measurement is noisy
2 Measured data span is too small
4 Lower end point to upper end point span is too small
8 Lower end point to upper end point span is too large
16 Gain DAC span does not include 0
32 Bit weight is out of limits; the offending bit is in B15-B8.
64 Gain DAC nominal setting is out of limits.
BCD weight Failure mode
1 The max-to-min span is 0.0.
2 Gain span is too large.
4 Gain mean is too low.
8 Gain mean is too high.
16 Gain standard deviation is too large.
32 Gain is out of limits.