Changing the code from the front panel.........................................2-21
Changing the code by remote.........................................................2-21
Resetting the calibration code ........................................................2-22
Viewing calibration date and count.......................................................2-22
Viewing date and count from the front panel.................................2-22
Acquiring date and count by remote ..............................................2-22
3
Disassembly
Introduction.............................................................................................3-2
Handling and cleaning.............................................................................3-2
Handling PC boards .........................................................................3-2
Solder repairs....................................................................................3-2
Static sensitive devices.....................................................................3-2
Assembly drawings .................................................................................3-3
Disassembly procedures..........................................................................3-3
Case cover removal ..........................................................................3-3
Analog board removal......................................................................3-4
Digital board removal.......................................................................3-4
Front panel disassembly...................................................................3-4
Removing mechanical components..................................................3-5
Instrument re-assembly ...........................................................................3-5
4
Replaceable Parts
Introduction.............................................................................................4-2
Ordering information...............................................................................4-2
Factory service ........................................................................................4-2
Parts lists and component layouts ...........................................................4-2
Models 2303 and 2303-PJ parts lists................................................4-3
Model 2303B parts lists..................................................................4-14
A
Specifications
Specifications .........................................................................................A-2
Accuracy calculations.............................................................................A-6
Output and compliance accuracy ....................................................A-6
Readback accuracy..........................................................................A-6
Digital voltmeter input accuracy .....................................................A-6
B
Calibration Reference
Introduction............................................................................................B-2
Command summary ........................................................................B-2
Miscellaneous commands ......................................................................B-3
Detecting calibration errors....................................................................B-6
Reading the error queue ..................................................................B-6
Error summary.................................................................................B-6
Status byte EAV (Error Available) bit .............................................B-6