Anything related to test equipments such as multimeter and so on...
Questions tagged [test-equipment]
196 questions
38
votes
3 answers
Analog scales: Why do they have a metallic strip?
I have a couple of meters with analog scales and want to know why they have a shiny metallic area following the scale.
jake9wi
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3
votes
2 answers
Is there a reason that phase testers are not prevalent in the USA?
Soft question here. I grew up in Ireland where phase testers (see picture) were used to check liveness of domestic wiring. They were also convenient for checking the ignition in a car.
I never see them used in the USA.
Why not? Grounding…
copper.hat
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1
vote
0 answers
Waveform Generator Ripple on Pos. Sine Crest
Acquired a used GW Instek 8020H. During cursory testing, it was found to have excessive ripple at the positive crest, along with very minimal ripple at the negative crest. This ripple appears also on the Triangle waveform, but the Square waveform…
ITPhoenix
- 145
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0
votes
2 answers
Name of test tool and where to find it
I have found myself in a situation where I need to test some components, among them some dimmer switches and wall outlets. But I have quickly been hampered by my complete lack of experience.
I am looking for a tool that will allow me to plug into a…
Martin Nielsen
- 101
0
votes
2 answers
What does this multimeter tempco spec mean?
This is the accuracy spec for an Agilent 34401A 6-1/2 digit multimeter. What exactly does the "temperature coefficient" mean here? Does it mean that the reading will not change by more than 0.0005% (5 ppm) over the whole temperature range 0 to 18C?…
10ppb
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0
votes
0 answers
How can I make a test circuit and application for CA3020A power amplifier?
I found these components recently and am eager to work on them. I first need to check if they are working and then need to make an application with them. I referred to the data sheet but still not able to proceed.
This is the link to the datasheet.
Axel Blaze
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0
votes
1 answer
How to maintain the zero potential at the connector end?
I am developing Automated Test Equipment (ATE), from the ATE, on the output connector there will be a some potential exists.
How to maintain the zero potential at the connector end, which goes to Test Article?
Note: Before connecting to Test Article…
0
votes
1 answer
What is the purpose of external terminals on a logic probe?
I have an LP-3500 logic probe. In addition to the normal connectors to power and ground at the bottom, it comes with two external terminals (one red, one black), which can be connected on the side near the tip:
What is the purpose of the external…
Ellen Spertus
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