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Model DMM7510

7½ Digit Graphical Sampling Multimeter Reference Manual Section 8:

TSP command reference

DMM7510-901-01 Rev. B / May 2015 8-209

Details

Use this command to lower the audible noise level of the instrument fan.

Quiet fan level speed control may increase internal temperature, which could compromise

performance to specifications.

When you set the fan level to quiet:

• Audible noise decreases

• Specifications are only valid for 18 ºC to 25 ºC

• Additional thermal settling time may be required after changing input connections

Instrument performance can be improved with the use of autocalibration. Allow 90 minutes between

changing fan level and running autocalibration.

Example

fan.level = fan.LEVEL_QUIET

Set the fan speed to the quiet level. The

audible noise of the fan decreases.

Also see

acal.run() (on page 8-12)

auto calibration (on page 3-44)

file.close()

This function closes a file on the USB flash drive.

Type TSP-Link accessible

Affected by Where saved Default value

Function

Usage

file.close(fileNumber)

fileNumber

The file number returned from the

file.open()

function to close

Details

Note that files are automatically closed when the file descriptors are garbage collected.

Example

file_num = file.open("/usb1/GENTRIGGER", file.MODE_WRITE)

file.close(file_num)

Open the file GENTRIGGER for writing, then close it.

Also see

file.open() (on page 8-211)

Keithley DMM7510 Reference Manual

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