Keithley 2750 Service Manual

Model 2750 Multimeter/Switch System Service Manual Calibration Reference B-11
Calibration Reference
:STEP8
(:CALibration:PROTected:DC:STEP8)
Purpose To program the 100k 4-wire comprehensive calibration step.
Format :cal:prot:dc:step8 <Cal_resistance>
Parameters <Cal_resistance> = 90E3 to 110E3 []
Description :STEP8 programs the 100k 4-wire resistance comprehensive calibra-
tion step. The allowable range of the calibration resistance parameter is
from 90E3 to 110E3, but 100E3 is recommended for best results.
Example :CAL:PROT:DC:STEP8 100E3 Program 100k step.
:STEP9
(CALibration:PROTected:DC:STEP9)
Purpose To program the 1M comprehensive calibration step.
Format :cal:prot:dc:step9 <Cal_resistance>
Parameters <Cal_resistance> = 900E3 to 1.1E6 []
Description :STEP9 programs the 1M comprehensive calibration step. The
allowable range of the calibration resistance parameter is from 900E3 to
1.1E6. Use the 1E6 value whenever possible, or the closest possible
value.
Example :CAL:PROT:DC:STEP9 Program 1M calibration step.
:STEP10
(CALibration:PROTected:DC:STEP10)
Purpose To program the 10mA comprehensive calibration step.
Format :cal:prot:dc:step10 <Cal_current>
Parameters <Cal_current> = 9E-3 to 11E-3 [A]
Description :STEP10 programs the 10mA comprehensive calibration step. The
allowable range of the calibration current parameter is from 9E-3 to
11E-3. Use the 10E-3 value whenever possible for best results.
Example :CAL:PROT:DC:STEP10 10E-3 Program 10mA step.

Keithley 2750 Specifications

General

Interface	GPIB, RS-232, Ethernet
Switching Speed	Up to 500 channels/second
Maximum Voltage	300V
Operating Temperature	0°C to 50°C
Measurement Functions	DCV, ACV, DCI, ACI, 2-wire Resistance, 4-wire Resistance, Frequency, Temperature
Resolution	6.5 digits
Current	1A
Maximum Current	1A