Recommended Equipment; Calibration - Keithley 3700 series Reference Manual

Series 3700 System Switch/Multimeter Reference Manual

Recommended equipment

The following table lists the recommended equipment and settings you need for comprehensive,
DC-only, and AC-only calibration procedures. Alternate equipment may be used, such as a DC
transfer standard and characterized resistors, as long as the equipment has specifications at
least as good as those listed in the table. In general, equipment uncertainty should be at least
four times better than the corresponding Series 3700 specifications.
NOTE
Manufacturer
Fluke
Fluke
N.A.

Calibration

NOTE
The comprehensive calibration procedure calibrates the DCV, DCI, ACV, ACI, and ohms
functions. You can also choose to calibrate only the DCV/DCI and resistance or ACV/ACI
functions (make sure to
only calibration required in the field.
Before performing a calibration, check the system date of the U.U.T. (Unit Under Test). This can
be done by sending the following:
print(os.date("%x"))
If the date is wrong, the date and time need to be reset using the following command:
settime(os.time(year = yyyy, month = mm, day = dd, hour =hh, min = mm,
sec = ss))
Make sure to fill in the correct date and time using 24 hour clock. If the date is incorrect it will not
save the proper date when calibration is saved. For additional information about this command,
see localnode.settime
Document Number: 3700S-901-01 Rev. A / August 2007
The Keithley Instruments Model 3706-190 backplane connector board is an accessory
that can be used to make connections to the calibrator. Additional boards, such as a
four wire short or the discrete resistors, would also be convenient to eliminate rewiring
for different setups used in verification.
Model Description
5700 Calibrator
5725 Amplifier
N.A. 4 Wire Short
Before performing calibration, calibration must be unlocked by entering the appropriate
calibration code (see Remote comprehensive calibration procedure
Save calibration
(on page 9-152).
Used for:
All DCV, ACV, DCI, ACI,
and Resistance
High voltage, high current
DCV, Resistance Zeroes
(on page 11-16)). These procedures are usually the
Section 11: Calibration
Uncertainty
N.A.
N.A.
N.A.
(on page 11-4)).
11-3