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2308-900-01 Rev. A / July 2008
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Section Topics
B-3
Model 2308 Portable Device Battery/Charger Simulator User’s Manual
Appendix B: Calibration Reference
:COUNt?
Query number of times 2308 has been calibrated.
:DATE <yyyy>,<mm>,<dd>
Program calibration year, month, day.
:DATE?
Query calibration year, month, day.
:INIT
Initiate calibration (must be sent before other cal steps).
:SAVE
Save calibration data to EEPROM.*
:LOCK
Lock out calibration. (Abort if calibration is incomplete.)
:STEP0 <nrf>
Output Ch. 1 full-scale voltage (14 V).
:STEP1 <nrf>
Calibrate Ch. 1 output voltage using external DMM reading.
:STEP2 <nrf>
Calibrate Ch. 1 voltage measuring using external DMM
reading.
:STEP3 <nrf>
Output current (1.9 A) for Ch. 1, 5 A full-scale cal.
:STEP4 <nrf>
Calibrate Ch. 1 output current limit using calculated current.
:STEP5<nrf>
Calibrate Ch. 1, 5 A measurement range using calculated
current.
:STEP6
Output 500 mA nominal current for Ch. 1, 500 mA range full-
scale cal.
:STEP7<nrf>
Calibrate Ch. 1, 500 mA measurement range.
:STEP8
Output 50 mA nominal current for Ch. 1, 50 mA range full-
scale cal.
:STEP9<nrf>
Calibrate Ch. 1, 50 mA measurement range.
:STEP10
Output 5mA nominal current for Ch. 1 5mA range full-scale
cal.
:STEP11 <nrf>
Calibrate Ch. 1, 5 mA measurement range.
:STEP12<nrf>
Output Ch. 2 full-scale voltage (14 V).
:STEP13 <nrf>
Calibrate Ch. 2 output voltage setting using DMM reading.
:STEP14 <nrf>
Calibrate Ch. 2 voltage measuring using external DMM
reading.
:STEP15
Perform Ch. 2 DVM input full-scale (14 V) cal.
:STEP16 <nrf>
Output current (1.9 A) for Ch. 2, 5 A full-scale cal.
:STEP17<nrf>
Calibrate Ch. 2 output current limit using calculated current.
:STEP18 <nrf>
Calibrate Ch. 2, 5 A measurement range using calculated
current.
:STEP19
Output 5 mA nominal current for Ch. 2, 5 mA range full-scale
cal.
:STEP20 <nrf>
Calibrate Ch. 2, 5 mA measurement range.
Table B-1
Remote calibration command summary
Command
Description
* Calibration data will not be saved if:
1. Calibration was not unlocked with
:CODE
command.
2. Invalid data exists. (For example, cal step failed or was aborted.)
3. Incomplete number of cal steps were performed.
4. Calibration was not performed in the proper sequence.
Summary of Contents for 2308
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