Author Topic: FLUKE 5100B up to 19.999V ac and dc only. please help.  (Read 652 times)

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Offline clexzzz

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FLUKE 5100B up to 19.999V ac and dc only. please help.
« on: November 02, 2017, 08:28:58 pm »
Hi good day,

   i have some question about fluke 5100B. So far we can only use it up to 19.999V ac and V dc. When we try it 20V and up and press OPT, the display says OL. Can you please help us. Thank you. Sorry for my english.
 

Offline dacman

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Re: FLUKE 5100B up to 19.999V ac and dc only. please help.
« Reply #1 on: November 03, 2017, 11:13:42 am »
Number one suspect is the A17 Power Amplifier.  It works with ac voltages.  For DCV, A17 gets fed 1 kHz and the output goes to A16 which rectifies and filters it.  It would be easier to troubleshoot if extender cards were available.
 
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Offline clexzzz

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Re: FLUKE 5100B up to 19.999V ac and dc only. please help.
« Reply #2 on: November 03, 2017, 12:48:00 pm »
thank you very much. do you know someone that can repair it?
 

Offline clexzzz

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Re: FLUKE 5100B up to 19.999V ac and dc only. please help.
« Reply #3 on: November 03, 2017, 01:29:40 pm »
Hi, I already saw the A16 and A17, we dont have a card extender. What particular part of it what needed to be checked and repaired? And please give us some procedure to troubleshoot it. Thank you very much.
 

Offline dacman

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Re: FLUKE 5100B up to 19.999V ac and dc only. please help.
« Reply #4 on: November 04, 2017, 01:23:33 am »
Does it work at:
20 V, 10 kHz
AC or DC Current at 100 mA
AC or DC Current at 1 A

I'd read the theory of operation (section 3) of the manual.  Page 4-45 of the 5100B manual has a troubleshooting table, although without an extender it would be much more time consuming, even if possible.
 

Offline clexzzz

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Re: FLUKE 5100B up to 19.999V ac and dc only. please help.
« Reply #5 on: November 15, 2017, 07:57:39 pm »
No. up 19.999V only. Any suggestion so we can use it even the voltage function only. Thank you.
 


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