ZIG WG-4 Water tank level indicator

[Cariadco]

Anyone got a circuit diagram for the wiring for this type of tank level? Mine reads permanent zero, so me and my trusty AVO are about to investigate.....
I've got 2 water tanks, both fitted with senders but only one gauge!!!
I've emailed ZIG but no reply.
Thanks for any help.

 

[TRH]

Silly I know But have you turned the knob,and set it when full,Then when you push the other knob it gives you the read out.

 

[halcyon]

If no one has a Zig diagram, I can do you a quick sketch, you only have about 4 / 5 components in there.

Quick check is to see if you get a voltage on the wires at the tank when you press the test button. You should have 5 volt on the input, and a lower voltage on the output side.

If you do not have 5 volt ( from memory ) check the voltage in and out at the display, then you need to look inside.

Have you a switch to select tank ?

Brian

 

[Cariadco]

Thanks for that, no there's no selector switch, hence my confusion.
Yes, I've tried every combo of button pushing etc, still no display.
Anyways, I'll trace the voltage, and see what happens.
I'll try phoning ZIG, this week.