![background image](http://html1.mh-extra.com/html/keithley/2303/2303_service-manual_4044894036.webp)
2.
At this point, the Model 2303 will prompt you to set the full-scale output voltage:
FULL SCALE VOLTS
SET 14.0000 V
3.
Use the edit keys to set the voltage to 14.0000V, then press ENTER.
NOTE
At this point, the source output is turned on and will remain on until calibration is
complete or aborted with the MENU key.
4.
The unit will prompt you for the DMM reading, which will be used to calibrate the full-
scale output voltage:
FULL SCALE VOLTS
READ1 14.0000 V
5.
Using the edit keys, adjust the Model 2303-PJ voltage display to agree with the DMM
voltage reading, then press ENTER. The unit will then prompt for another DMM read-
ing, which will be used to calibrate the full-scale measurement function:
FULL SCALE VOLTS
READ2 14.0000 V
6.
Using the edit keys, adjust the display to agree with the new DMM voltage reading, then
press ENTER. The unit will then prompt for DVM full-scale calibration:
FULL SCALE DVM
ALL READY TO DO?
7.
Press ENTER to complete DVM full-scale calibration.
8.
Connect the digital multimeter volts input and characterized 4
Ω
resistor to the Model
2303-PJ OUTPUT SOURCE terminals, as shown in Figure 2-3. Be sure to observe
proper polarity ( to DMM INPUT HI; SOURCE - to INPUT LO).
9.
Be sure the digital multimeter DC volts function and auto-ranging are still selected.
10.
At this point, the unit will prompt for 5A full-scale calibration output:
SOURCE 5 AMPS
SET 1.90000 A
11.
Using the edit keys, adjust the set value to 1.9000A, then press ENTER. The unit will
then prompt you for the DMM reading, which calibrates the 5A current limit:
SOURCE 5 AMPS
READ1 1.90000 A
12.
Note the DMM voltage reading, then calculate the current from that reading and the
actual 4
Ω
resistance value: I = V/R. Adjust the Model 2303-PJ current display value to
agree with the calculated current value, and press ENTER.
13.
The Model 2303-PJ will then prompt for another DMM reading, which is used for 5A
measurement calibration:
SOURCE 5 AMPS
READ2 1.90000 A
14.
Again, calculate the current from the new DMM reading and 4
Ω
resistor value. Adjust
the 2303 current display reading to agree with the new current, then press ENTER.
深圳德标仪器
135-1095-0799
Summary of Contents for 2303
Page 12: ...1 Performance Verification 135 1095 0799...
Page 26: ...2 Calibration 135 1095 0799...
Page 48: ...3 Disassembly 135 1095 0799...
Page 53: ...3 6 Disassembly 135 1095 0799...
Page 76: ...A Specifications 135 1095 0799...
Page 81: ...A 7 Specifications 135 1095 0799...
Page 82: ...B CalibrationReference 135 1095 0799...
Page 90: ...C CalibrationPrograms 135 1095 0799...