Performance Verification

Verifying the Multiple Channel Controller

Verifying the Multiple Channel Controller

Turn-On

This portion of the verification will check the 85330 multiple channel switch controller to ensure that it is operating correctly. It will also check the Switch Control Unit of the Agilent 85331/2 to make sure that it is switching correctly. Document the test results by plotting or printing the test instrument screens as each test is performed.

Turn the multiple channel controller ON; the following screen should appear:

Select an instrument._

 

SYSTEM 85330A IBASIC (see note below)

 

 

NOTE

IBASIC is only present if the IBASIC option is installed.

 

If you see the above display, the unit has passed its turn on tests and is

 

 

working properly. If you do not see this display, load the 85330A

 

downloadable driver files as explained in the “Loading the Driver from a

 

Personal Computer” on page 1-6.

Voltage Check

Check the voltage on the switch control unit’s OUTPUT connector. This is the connector that is used to daisy-chain the switch control units together. The voltages are shown in Table 2-2.If an external power supply is used to bias the switch control units, the supply may require some adjustment to keep the voltage within the tolerances.

Table 2-2 Switch Control Unit Voltages

Pin

Voltage

 

 

E, L, V

+12 ±1.8 Vdc

 

 

a

−12 ±1.8 Vdc

 

 

F, M, W, b

ground

 

 

2-6

85330A Multiple Channel Controller

Page 36
Image 36
Agilent Technologies 85330A service manual Verifying the Multiple Channel Controller, Turn-On, Voltage Check