Aux Input Accuracy

This topic page applies to all supported ENA models in both the Factory Recommended and the Normal Variant test plans.

This test checks the measurement accuracy of Aux Input. The Aux Input measurement is compared with the measured value of the multimeter by inputting a DC voltage to AUX IN 1, AUX IN 2, and the multimeter ports from the function generator. The difference in the readings is the measurement error.

Required Test Equipment

Test Equipment
(DSG)1

Recommended Model Number2

Function generator
(FunctionGenerator 1)

33622A

Digital multimeter
(DigitalMultimeter 1)

3458A

Cable, BNC

  • 4 required

8120-1840

Adapter, BNC Tee (BNC f,m,f)

  • 2 required

1250-0781

Adapter, BNC (f) to BNC (f)

1250-1830

Adapter, BNC (f) to Dual Banana

1251-2277

Short, BNC

  • 2 required

1250-0929
  1. The DSG (Device Substitution Group) is listed below the equipment description, if applicable. These devices are required to be mapped in TME to execute a test. DSGs require either GPIB communication or are important for dynamic measurement uncertainty calculations. N/A refers to required equipment that is not mapped as DSGs in TME.
  2. Refer to the main Required Test Equipment for a list of alternative models.

Connection Setups
  • Due to the complexity of the ENA family of analyzers, only a single representative model will be shown.
  • Some images may not apply to all models.

Offset Measurement Setup

 

Proportional Measurement Setup