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New 80W LPSU & Tube seem to be under performing, ammeter reads 5mA max

Discussion in 'Laser Cutters' started by CraigF, Jan 28, 2020.

  1. CraigF

    CraigF New
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    Joined:
    May 18, 2019
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    New laser and tube, seem to be underpowered.
    analog milliammeter reads a max of 5mA on a scale of 30

    tested with potentiometer set at max, min, and in between values.
    lower values on potentiometer lowers ammeter value, higher values, and even mid values max out at 5mA

    tested using laser “test” button on the LPSU, as well as a momentary push button wired to ‘L’ & ‘P’ terminals

    LPSU is 80W

    attempts at trying to cut material, prove to me its power is being limited, and not a simple malfunction of the ammeter.

    what could cause the laser to be so weak?
    incorrect wiring?
    long wire runs?
    wrong gauge wires?

    ill include a wiring diagram.
     

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