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| Trigger Data hold on Philips Meters sans DataHold Probe? |
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| watchmaker:
Is there a way to trigger DataHold on meters like the PM 2525 using the Din connector pins and a standard probe? I have looked at various pinouts for this connector but they all address 4 wire resistance and temp probes. TIA. Dewey |
| abeyer:
At least some of the models using that connector have service manuals with schematics available with the full connection details. IIRC, pins 5-6 are an I2C bus and the data hold probe is active, sending messages on that bus which drive a bunch of relays controlling internal signal routing. |
| watchmaker:
Thank you. I will look at the SMs of some of the other meters that use that probe. I do have two other meters that hold (Flukes) and I would like to add this to the Philips. Regards, Dewey |
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