Donnerstag, 9. Februar 2012

Digital Voltmeter JLD5740

The digital voltmeters JLD5740 from www.lightobject.com have arrived.
Now I have to find out where to attach the wires and how to set it up..?

Again there is no documentation or manuel in the pack.

My hope is on Jack..!!

3 Kommentare:

  1. I also dont know, but i think,
    J1 and J2 determine the position of the
    decimal point. Test it by connecting
    11-12 ; 12-13 ; 14-15 ; 15-16
    either every point has its own pin
    or they are binary coded.......

    I dont think, that this display has a
    floating decimal point

    The voltage input connectors seem
    clear, minus or gnd to COM,
    Your voltage is over 100V so
    connect it to terminal 4.

    Power 9-30V at 1 and 2 is clear.

    9 and 10 are obviously for current
    transmitters, this is only needed
    when measuring current. This is normally
    a low impedance input with current
    sensitivity, maybe 0-100mA ????
    Be careful with this input!!!!
    Dont apply a direct voltage!!!!!!
    use a resistor and put in a few mA......

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  2. oh.......
    forget almost everything i told before.......
    especially about pins 11 - 16 and 9-10!!!!!

    go to the forum or use this link
    http://www.lightobject.info/viewtopic.php?f=14&t=157#p311

    and download the manual.

    everything is explained there!
    The input is clear

    The pins 11 to 16 are relay outputs for
    configurable alerts.
    That's good!

    Pin 9 an 10 is a current output 0 - 20 mA
    or 4-20mA ...wow!!!!
    You can use this to transmit data to other
    components

    Franz

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  3. Yes Franz, this is the way to solve this little mystery.
    Last night I also found the download and was working on it. I made a little video today, while I was testing.
    Thanks for working with me (us)..)
    But not every question is already answered..

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