Author Topic: Convert Fluke 287 to 289  (Read 631 times)

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Offline Towlerar

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Convert Fluke 287 to 289
« on: October 19, 2021, 11:42:21 pm »
Just a curiosity of mine. I have a Fluke 287 and was wondering how difficult it would be to convert to the 289. The firmware is the same for both and the electronics are nearly identical. There was a short-lived meter called a Fluke 189II/AN that was the predecessor to the existing 287/289 meters. According to the attached picture from the service manual for that early meter, there is a set of model selector resistor dividers. Anyone know what effect these have?
 

Offline BeBuLamar

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Re: Convert Fluke 287 to 289
« Reply #1 on: October 20, 2021, 11:21:31 am »
Even if you can make the electronic identical it still not the 289. The 289 dial has 2 extra positions for low Z and Low Ohm. I think the best conversion is to sell the 287 on Ebay and buy a 289 on Ebay.
 

Offline coromonadalix

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Re: Convert Fluke 287 to 289
« Reply #2 on: October 20, 2021, 02:29:08 pm »
the same was apparently done and working for a 187 to 189 conversion,  thread here .....   to my knowledge, never been done for a 287 to 289 ... 
 
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Offline rvalente

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Re: Convert Fluke 287 to 289
« Reply #3 on: October 20, 2021, 03:43:50 pm »
Just a curiosity of mine. I have a Fluke 287 and was wondering how difficult it would be to convert to the 289. The firmware is the same for both and the electronics are nearly identical. There was a short-lived meter called a Fluke 189II/AN that was the predecessor to the existing 287/289 meters. According to the attached picture from the service manual for that early meter, there is a set of model selector resistor dividers. Anyone know what effect these have?

Hello,

Could you share this service manual?
 

Offline Towlerar

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  • Posts: 14
  • Country: us
Re: Convert Fluke 287 to 289
« Reply #4 on: October 20, 2021, 03:54:57 pm »
Just a curiosity of mine. I have a Fluke 287 and was wondering how difficult it would be to convert to the 289. The firmware is the same for both and the electronics are nearly identical. There was a short-lived meter called a Fluke 189II/AN that was the predecessor to the existing 287/289 meters. According to the attached picture from the service manual for that early meter, there is a set of model selector resistor dividers. Anyone know what effect these have?

Hello,

Could you share this service manual?

https://github.com/Towlerar/Fluke-189II-AN-Service-Manual
 
The following users thanked this post: nixxon, rvalente


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