RESistance:APERture

[SENSe:]RESistance:APERture <number> sets the integration time in seconds for 2-wire resistance measurements. Values are rounded up to the nearest aperture time shown in the following table.

Parameters

 

 

 

 

Parameter Name

Parameter Type

Range of Values

Default Units

 

 

 

 

<number>

numeric

0.333ms3.33ms16.7ms

seconds

 

 

167ms1.67sMINMAX

 

 

 

 

 

 

 

 

 

Comments MIN sets the aperture time to 0.333ms. MAX sets the aperture time to

1.66667 seconds (60Hz) or 2 seconds (50Hz).

Setting the aperture time also sets the integration time in power line cycles (PLCs) and the resolution. For example, an aperture time of 16.7ms (60Hz line frequency) sets an integration time of 1 PLC. The corresponding resolution depends on the function and range you select.

The RES:APER command overrides the results of previously executed

RES:NPLC and RESistance:RESolution commands. The last command executed has priority.

The greater the aperture time, the greater the normal mode rejection (and the lower the reading rate).

Related Commands: CALibration:LFRrequency

*RST Condition: RES:APER 0.166667 seconds (60Hz) or RES:APER 0.20000 (50Hz)

Example Set an Aperture Time of 16.7ms

RES:APER 16.7E-03

Aperture time is 16.7ms.

RESistance:APERture?

[SENSe:]RESistance:APERture? [MINMAX] returns one of the following numbers to the output buffer.

The present aperture time in seconds if MIN or MAX is not specified.

The minimum aperture time available (.333 ms) if MIN is specified.

The maximum aperture time available (1.67s @ 60Hz; 2s @ 50Hz) if MAX is specified.

Example Query the Aperture Time

RES:APER 167E-03

Aperture time is 167ms.

RES:APER?

Query multimeter to return aperture time.

enter statement

Enter value into computer.

Chapter 3

Multimeter Command Reference 139

Page 139
Image 139
HP WaterSkis E1412A, WaterSkis E1312A manual RESistanceAPERture?