| Products > Test Equipment |
| Fluke 28 II Battery life |
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| JuiceKing:
Update: Got my 28ii back from Fluke yesterday. They replaced the main board and now it works fine. Surprisingly, the service tech note said that they weren't able to reproduce the problem, but from the way the note was written, it looked like they only tried to turn on the meter and didn't actually try to test continuity, which is what you need to do to see the problem. It seems that their technician had never seen or heard of this before, or it would have been obvious. |
| BH:
I am experiencing the same issue with my Fluke 28-II, serial 23170026. I have monitored the current consumption while the buzzer is sounding and my instrument draws ~225mA. Unfortunately I would need a comparison reading from a working instrument to know for certain if this is abnormal. But it certainly sounds like a heck of a lot of current for a buzzer, and I would be surprised if this was normal behaviour. I have had a tinker inside the instrument and I have located the buzzer. I tried to find a datasheet for it so that I could determine the typical current consumption, but I could not find any record of this component on the internet! The component marking is: SWP OS127C4. I found information on other buzzers made by the same manufacturer, and they had parts numbers such as: SMOS-1020I-26L0. The component reference is LS4. I guess this could either be a problem with the buzzer drawing too much current, or it could be a problem with the threshold point for the low battery detector. My next move is to ask Fluke if they can shed any light on this problem, and perhaps I will give them a link to this forum post so that they can see the issue is being discussed in the community. I don't suppose anyone else has further info on this issue? Or a service manual for the Fluke 28II? BJH. |
| retiredcaps:
--- Quote from: BH on October 21, 2014, 01:46:02 pm ---My next move is to ask Fluke if they can shed any light on this problem, and perhaps I will give them a link to this forum post so that they can see the issue is being discussed in the community. --- End quote --- Yes, point Fluke to this thread so they can investigate. |
| BH:
Already done :) I will let you all know what information they provide. |
| Vito_R:
Same issue here. Fluke 28-II serial number starts with 2090 less then 2 years old brand new in the box. Batteries are brand new and swapped out with another set of fresh batteries to see if it made any difference. Original batteries also tested full capacity under load and were fine. Meter stops working and freezes up completely when you try to use continuity with 2nd level back light on. As soon as you touch the test leads together the meter freezes up and displays BATT with a lightning symbol. Sent it to fluke yesterday and it's in their hands now. Will see what they do. Could be a common defect with a certain version of the main board. It was also not doing this the first time I purchased and tested it. It was however displaying just the low battery symbol but did not freeze up or shut down. Seems like it might be some sort of component degradation over time since this particular meter was not even used and just left in our inventory. I'm quite surprised this would happen to a Fluke Multimeter. |
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