Keithley 2701 Service Manual

Model 2701 Service Manual Calibration Reference B-21
:SAVE
(:CALibration:PROTected:CARD1:SAVE)
Purpose To save calibration constants in card EEROM after the calibration
procedure.
Format :cal:prot:card1:save
Parameter None
Description The :SAVE command stores calculated calibration constants derived during
Model 7700 calibration in card EEROM. (EEROM is non-volatile memory.)
Calibration constants will be retained indefinitely once saved. Generally,
:SAVE is sent after all other calibration steps (except for :LOCK).
NOTE Card calibration will be only temporary unless the
:SAVE command is sent to
permanently store calibration constants.
Example :CAL:PROT:CARD1:SAVE Save card calibration constants.
:STEP0
(:CALibration:PROTected:CARD1:STEP0)
Purpose To perform Model 7700 calibration.
Format :cal:prot:card1:step0 <temp>
Parameter <temp> = Cold calibration temperature (˚C)
Description :STEP0 performs temperature sensor calibration of the Model 7700. The
card must be allowed to cool down to ambient temperature before calibra-
tion. The cold temperature of the card must be measured and sent as the
<temp> parameter during calibration.
NOTE Before calibrating the Model 7700, make sure that power has been removed from the
card for at least two hours to allow card circuitry to cool down. After turning on the
power during the calibration procedure, complete the procedure as quickly as possi-
ble to minimize card heating that could affect calibration accuracy.
Example :CAL:PROT:CARD1:STEP0 23 Perform 7700 calibration.

Keithley 2701 Specifications

General

Max Voltage	300 V
Max Current	3 A
Frequency Range	3 Hz to 500 kHz
Frequency Accuracy	0.01%
Weight	3.6 kg
Measurement Functions	Frequency, Temperature
Interface	IEEE-488 (GPIB), RS-232
DC Voltage Range	300 V
DC Current Range	3 A
AC Voltage Range	300V
AC Current Range	1 μA to 3 A
Resistance Accuracy	0.01%
Channels	10
Dimensions	213mm x 88mm x 370mm