Detecting Calibration Errors; Reading The Error Queue; Error Summary; Table B-2 Calibration Errors - Keithley 2520 Service Manual

Model 2520 Pulsed Laser Diode Test System Service Manual
:DATA?
(:CALibration:PROTected:SOURce2:DATA?)
(:CALibration:PROTected:SOURce3:DATA?)
Purpose
Query
Description
Example

Detecting calibration errors

If an error occurs during any calibration step, the Model 2520 will generate an appropriate
error message. Several methods to detect calibration errors are discussed below.

Reading the error queue

As with other Model 2520 errors, any calibration errors will be reported in the error queue.
(You can read the error queue by using the :SYST:ERR? query.)

Error summary

Table B-2
Table B-2
Calibration errors
Error
number
+500
+501
+502
+509
+510
+520
+521
+522
+523
+524
+525
To query detector 1 or detector 2 voltage bias calibration constants.
:cal:prot:sour2:data?
:cal:prot:sour3:data?
The :CAL:PROT:SOUR2:DATA? and :CAL:PROT:SOUR3:DATA?
queries request detector 1 and detector 2 calibration constants. Returned
constants are in ASCII format separated by commas
:CAL:PROT:SOUR2:DATA?
summarizes calibration errors.
Error message
"Date of calibration not set"
"Next date of calibration not set"
"Calibration data invalid"
"Not permitted with cal locked"
"Not permitted with cal un-locked"
"Source + gain data invalid"
"Source + offset data invalid"
"Source - gain data invalid"
"Source - offset data invalid"
"Source DAC Overflow"
"Source DAC Underflow"
Calibration Reference
Query detector 2 constants.
B-9