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Section 14: SCPI command reference Model 6517B Electrometer Reference Manual

14-82 6517B-901-01 Rev. C / August 2015

:RANK <NRf>

This command is used to specify the median rank for volts, amps, ohms, and coulombs.

Usage

[:SENSe[1]]:VOLTage[:DC]:MEDian:RANK <NRf>

[:SENSe[1]]:CURRent[:DC]:MEDian:RANK <NRf>

[:SENSe[1]]:RESistance:MEDian:RANK <NRf>

[:SENSe[1]]:CHARge:MEDian:RANK <NRf>

:RANK?

<NRf>

 1 to 5: Specify rank

Details

The number of sample readings used for the median calculation is determined by the selected range

(1 to 5) as follows:

Sample readings = (2 × R) + 1

Where: R is the selected range (1 to 5)

For example, a rank of 5 uses the last 11 readings to determine the median; (2 × 5) + 1 = 11.

Each new reading replaces the oldest reading, and the median is then determined from the updated

sample of readings.

Also see

None

:DAMPing <b>

This command is used to control the damping for amps and ohms.

Usage

[:SENSe[1]]:CURRent:DC:DAMPing <b>

[:SENSe[1]]:RESistance:DAMPing <b>

:DAMPing?

<b>

 0 or OFF: Disable damping

 1 or ON: Enable damping

Details

This command is used to control damping for the Amps and Ohms function. Damping is used to

decrease noise caused by high input capacitance. However, damping also slows down the response

of the measurement.

Note that damping is only valid for the lowest two current ranges (20 pA and 200 pA ranges).

Also see

None

Keithley 6517B Reference Manual

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