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Set burst mode frequency – Measurement Computing TempScan/1100 User Manual

Page 230

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A-34 API Command Reference

889897

TempScan / MultiScan User’s Manual

F#

- Set Burst Mode Frequency

MultiScan/1200 only

TYPE

System

EXECUTION

Deferred

SYNTAX

F#freq

Select burst mode sampling frequency where

freq

is a real number and

where

38.5

<

freq

<

20000.0

Hertz (default).

DESCRIPTION

The Set Burst Mode Frequency (

F#

) command is used to select the channel sampling frequency when the

MultiScan/1200 is in single-channel high-speed burst mode. For more information on burst mode, see section
Measuring Modes (MultiScan/1200 Only) in the chapter System Configuration.

For AC measurements where the RMS (Root Mean Square) value is to be returned via the following User Status
(

U

) command – Query measuring mode parameters (

U16

) – it is your responsibility to program a frequency which

will yield a sufficient whole even number of samples per line cycle in order to compute the RMS accurately. In
general, for AC measurements, the frequency should equal (2n * 60) Hz where n is a positive integer.

For more information on MultiScan/1200 measuring mode parameters, see section Measuring Modes
(MultiScan/1200
Only) in the chapter System Configuration, and see commands Set Measuring Mode (

M#

) and

Set Averaging Weight (

W#

).


EXAMPLE

PRINT#1, “OUTPUT07;F#15000.0X”

‘ Select 15 KHz sampling frequency

PRINT#1, “OUTPUT07;F#100.5X”

‘ Select 100.5 Hz sampling frequency

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