Fluke 1595A - Manual (Page 111)

101
Remote Operation
Interface Commands
The query form returns 1 if Ratio Self-Calibration is in progress, 0 otherwise.
8.7.3.134 TEST:LIN:REP<n>?
Example response: 0.00000002,0.00000001,0.00000002,0.02,0.003
Reads a report from Ratio Self-Calibration (see Section 9, Calibration, on page 103).
Suffix <n> specifies the test number of which a report is requested:
<n> Linearity self-test type
1 zero check
2 compliment check
3 equal ratio sum, 100% scale
4 equal ratio sum, 90% scale
5 equal ratio sum, 75% scale
6 equal ratio sum, 60% scale
7 equal ratio sum, 50% scale
8 unequal ratio sum
The normal response contains the following:
<result A>,<result B>,<combined>,<error>,<std error>
<result A> is the mean measurement from the first part of the test.
<result B> is the mean measurement from the second part of the test.
<combined> is the combined result of the two parts.
<error> is the difference between <combined> and the expected value, in units of 1×10-6.
<std error> is the standard error of <error>, in units of 1×10-6. The standard errors of <result A> and <result
B> are calculated by dividing their standard deviations by the square root of the sample size, and then the two
values are combined using a root-sum-square calculation.
A report is available only if the Ratio Self-Calibration runs to completion. If no report is available, error
-230,“Data corrupt or stale” is generated in the error queue. If the power is switched off and then on again, the
values <result A>, <result B>, and <combined> will no longer be available and will be missing in the com-
mand response.
8.7.3.135 TEST:LIN:REP:TIME?
Example response: 2009-06-24 14:30:48
Reads the date and time of the most recent Ratio Self-Calibration report (see Section 9, Calibration, on page
103). The date is in the format YYYY-MM-DD. The time is in 24-hour format. If Ratio Self-Calibration has
not yet compled, error -230,“Data corrupt or stale” is generated in the error queue.
8.7.3.136 TEST:LIN[:STAT]?
Example response: 5
Reads the state of the Ratio Self-Calibration (see Section 9, Calibration, on page 103).
A non-zero response indicates calibration is in progress, and the value designates which test number is in prog-
ress. The response is 0 calibration is not running.
8.7.3.137 TEST:LIN:TIME?
Example response: 205
Reads the time remaining of the Ratio Self-Calibration. The time remaining is a number of seconds.