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166 53220A/53230A User’s Guide

5 Triggering and Gating

INFinity|DEFault}

[SENSe:]TOTalize:GATE:TIME? {MINimum|MAXimum|DEFault}

(query form)

CONFigure and MEASure automatically set the gate source to TIME, and the

gate time to the value of their gate_time parameter.

To specify a gate time and source directly for totalizing:

// set gate time and source

SENS:TOT:GATE:TIME 10 // set gate time = 10s

SENS:TOT:GATE:SOUR TIME // set gate source

External Gate Sources

Gate sources EXTernal, INPut[1], and INPut2 are external sources.

EXTernal is the counter’s rear panel ‘Gate In/Out’ BNC, and

INPut[1]/INPut2 (represented by softkeys Chan 1 and Chan 2) are the

counter’s channel 1 and channel 2 inputs.

External Gate Signal Polarity

When using the external gate sources, the polarity of the gate signal and there-

NOTE

OUTput:STATe OFF must be set when using gate source EXTernal. See

“Enabling Gate Signals on the ‘Gate In/Out BNC” for more information and for

information on using gate signals to synchronize other instruments.

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