Keithley 2303 Service Manual

2-20 Calibration
* Step numbers correspond to :STEP commands.
Step 3: Program calibration date
Use following commands to set the calibration date:
:CAL:PROT:DATE <yyyy>, <mm>, <dd>
Note that the year, month, and date must be separated by commas. The allowable range for
the year is from 1997 to 2096, the month is from 1 to 12, and the date is from 1 to 31.
Step 4:Save calibration constants and lock out calibration
Calibration is now complete, so you can store the calibration constants in EEROM by sending
the following command:
:CAL:PROT:SAVE
NOTE Calibration will be temporary unless you send the SAVE command. Also, calibration
data will not be saved if (1) calibration is locked, (2) invalid data exists, or (3) all
steps were not completed in the proper sequence. In that case, the unit will revert to
previous calibration constants.
After saving constants, lock out calibration by sending :CAL:PROT:LOCK.
Table 2-6
Model 2303-PJ remote calibration summary
Step* Command Description
Test
connections
:CAL:PROT:CODE ‘KI002303’ Unlock calibration. None
:CAL:PROT:INIT Initiate calibration. None
0 :CAL:PROT:STEP0 14 Full-scale (14V) output Figure 2-2
1 :CAL:PROT:STEP1 <DMM_Reading> Full-scale output cal. Figure 2-2
2 :CAL:PROT:STEP2 <DMM_Reading> Full-scale measure cal. Figure 2-2
3 :CAL:PROT:STEP3 DVM full-scale cal. Figure 2-2
4 :CAL:PROT:STEP4 1.9 Source full-scale current
cal.
Figure 2-3
5 :CAL:PROT:STEP5 <Current> 5A current limit cal. Figure 2-3
6 :CAL:PROT:STEP6 <Current> 5A measure cal. Figure 2-3
7 :CAL:PROT:STEP7 Source 500mA full-scale
current.
Figure 2-5
8 :CAL:PROT:STEP8 <Current> 500mA range measure cal. Figure 2-5
:CAL:PROT:DATE <yyyy,mm,dd> Program calibration date. None
:CAL:PROT:SAVE Save calibration data. None
:CAL:PROT:SAVE Lock out calibration. None
深圳德标仪器 135-1095-0799

Keithley 2303 Specifications

General

Output Voltage Range	0 to +15 V
Load Regulation	<0.01% + 2mV
Line Regulation	<0.01% + 2mV
Programming Resolution Voltage	1 mV
Interface	USB
Storage Temperature Range	-40°C to 70°C
Voltage Programming Accuracy	0.05% + 5 mV
Voltage Readback Accuracy	0.05% + 5 mV
Operating Temperature Range	0°C to 40°C

Summary

Warranty and Safety

Warranty Information and Limitations

Details warranty coverage, exclusions, and terms for the instrument.

General Safety Precautions

Outlines safety procedures, user roles, hazard awareness, and safe practices for instrument operation.

Performance Verification

Test Setup and Requirements

Specifies requirements like environment, warm-up, and equipment before performing verification tests.

Accuracy Test Procedures

Details tests for output voltage, readback, current, and DVM input accuracy.

Calibration

Calibration Setup and Procedures

Covers calibration setup, front panel, remote procedures, and management.

Calibration Management and Error Handling

Describes managing codes, dates, detecting errors, and step completion.

Service and Maintenance

Disassembly and Reassembly

Details safe disassembly, handling, cleaning, and reassembly of the instrument.

Replaceable Parts Lists

Lists ordering, service, and parts details for digital, analog, display, and mechanical components.

Specifications and Control

Instrument Specifications

Details DC voltage/current output, DVM input, and general specifications.

Calibration Support and Programs

Details calibration commands, error detection, and BASIC calibration programs.

Instrument Control Methods

Explains front panel control and IEEE-488 bus commands for instrument operation.