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Thread: Laser Power Meter for Coherent LM-100 Thermopile Head

  1. #1
    Join Date
    Aug 2014
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    Default Laser Power Meter for Coherent LM-100 Thermopile Head

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    I bought this cool LPM head on ebay: G179530 Coherent LM-100 Laser Power Meter Head w/ Fitted Case | eBay

    Now, I am trying to find the model number of the meter used with it and not finding which one yet, it uses a DB15 connector, A photo of the calibration paperwork which comes with it shows it is a LM-100 thermopile head which is used with a Coherent 201 meter, but when I research that meter, it uses a BNC connector input, not a DB-15. If I can't use it as a thermopile, I might just core it out and use the heat sink for a laser project.
    Last edited by Laser57; 03-18-2022 at 09:35.
    Glowing green eyes is a camera photoflash reflection.

  2. #2
    Join Date
    Mar 2022
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    2

    Default

    A Coherent Labmaster or Fieldmaster would work. Im 90% certain any coherent meter with the correct connector will work, the heads tend to be made to be interchangeable within the same brand.

    The BNC connector meter you mention could be made to work but youd need to modify your head connector.

  3. #3
    Join Date
    Aug 2014
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    Doha, Qatar
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    Default

    Great, thank you for your kind help sir.

    Chris
    Glowing green eyes is a camera photoflash reflection.

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