Low Frequency Multiplexer Switch Modules

4

Measurement Functions for the MUX Modules

The MUX modules support the DMM measurement functions as shown in the following table.

 

34921A

34922A

34923A

34923A

34924A

34925A

34925A

 

40-Ch Arm

70-Ch Arm

40-Ch Reed

80-Ch Reed

70-Ch Reed

40-Ch FET

80-Ch FET

 

MUX

MUX

MUX

MUX

MUX

MUX

MUX

Function

 

 

(2-Wire)

(1-Wire)

 

(2-Wire)

(1-Wire)

 

 

 

 

 

 

 

 

Voltage, AC/DC

Yes

Yes

Yes

Yes

Yes

Yes

Yes

 

 

 

 

 

 

 

 

Current, AC/DC

Yes1

No

No

No

No

No

No

Frequency/Period

Yes

Yes

Yes

Yes

Yes

Yes

Yes

 

 

 

 

 

 

 

 

Ohms 2-Wire

Yes

Yes

Yes5

Yes5

Yes5

Yes6

Yes6

Ohms 4-Wire

Yes

Yes

Yes5

No

Yes5

Yes6

No

Thermocouple

Yes2

Yes3

Yes3,4

Yes3,4

Yes3,4

Yes3

Yes3

RTD 2-Wire

Yes

Yes

Yes5

Yes5

Yes5

No

No

RTD 4-Wire

Yes

Yes

Yes5

No

Yes5

Yes6

No

Thermistor

Yes

Yes

Yes5

Yes5

Yes5

No

No

1Direct current measurements are allowed on channels 41 through 44 only (for all other channels, external shunts are required).

2Optional 34921T Terminal Block is required for thermocouple measurements with built-in internal reference junction.

3A fixed or external reference junction temperature is required for thermocouple measurement with this module.

4Impact of higher offset voltage specification (< 50 V) must be taken into consideration.

51 kor higher range used unless 100series resistors are bypassed on module.

610 kor higher range used for loads over approximately 300due to series resistance of FET channels.

34980A User’s Guide

97

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Image 109
Agilent Technologies Switch/Measure manual Measurement Functions for the MUX Modules