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5114 what is the minimum verification test requirement to confirm functionality of input signal conditioning hardware and module

Purpose: To define minimum test requirement (hardware) for production automated final verification test.

What is the smallest subset of tests to functional test all hardware paths through the module?

 

 

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Hello Dragons,

 

Unfortunately, we don't have a list of approved steps for a minimum test requirement for a 5114. Here are somethings I use to test to see if a device is working:

 

1.) Does the device show up in Device Manager under a Data Acquistion Device? (This will show that Windows recongizes the device and the driver has been assigned correctly to the card.)

2.) Does the device show up in MAX with a green card to the left of it? (This will show that MAX can see the device and communication has been established with the device.)

3.) Does the device pass self-test and reset? (This will show that MAX can communicate with the device correctly with out and problems.)

4.) Can you acquire data from all the channels in test panel? Make sure to place a known signal to the input to verify the signal. (This will prove that you can retrieve the data from the card correctly.)

 

After these steps, I usually believe that the card is working and I start programming with it. You can perform this next steps to prove that it works outside MAX.

 

1.) Open Scope Soft Front Panel and test if you can see the device can acquire the known signal.

2.) Open a LabVIEW example and test acquiring from the same signal.


Jim St
National Instruments
RF Product Support Engineer
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Jim,

 

We are past this state.  Play like we have a working PXI-5114 Scope in a PXI Chassis.  Its calibrated and verified.  It's been returned by a customer after two years in the field.  I want to verify the Scope is working within specification through our GUI.

 

Ref 371690a, PXI-5114 Calibration Procedure, page 11, "External Calibration Requirements".  I want to know the minimum "External Verification Requirement".

 

Examples:

Do I have to test bandwidth on all ranges or is testing on one range satisfactory.

Do I have to test each and every range for amplitude or can I do a few ranges.  Can I skip some ranges and still know its electronically sound.

Can I test each range at one amplitude say 75% of full scale or do I have to input (max min) levels.

Do I have to test each sweep time range or can I test shortest and longest or I don't need to test it at all because its synchronized to external clock.

Does the two channel scope need both channels tested.

 

In short.  I have a Scope.  I want to verify it in the most cost effective efficient manner.  What do I need to test and how extensively?

 

Richard

Quality Engineer

 

 

 

 

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Hello Richard,

 

Unfortunately, we don't provide a minimum "External Verification Requirement". The reason is that every customer has different applications where these minimum verifications would be different. Knowing this, we provide the entire calibration process that would bring the device back into spec.


Jim St
National Instruments
RF Product Support Engineer
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