When power for the meter is not supplied, will the main current circuit be still through?
271208
I just put an ohmmeter across the heavier gauge black and white leads of my meter (out of circuit and powered down) and I got a dead short. So yes, when powered off, the meter will pass current through the black and white leads.
1818815
Lucas, have you connected a load to the output of the power supply? No current will be drawn if the circuit is open .
1948671
That has never happened to me, so I can't answer specifically. However, if I unplug it, it must be reset again, so I assume the same would be true of a power failure.
1292031
The way to check it with a meter, is for continuity, not voltage. Put your meter on OHMS and check between the battery neg post and where the cable attached. You will see it reads "Open" when the knob is turned clockwise to loosen it. When tightened the connection is completed and you will have continuity "0". Proven that no electricity will flow with the knob loosened.
1830353
No. It would be possible but not what they were designed for. They only work on the type of system where the meter can run backwards, not systems with battery backup. If the grid power turns off, so do they.
920920
If it is new service yes I am sure your local power company will want you to have meter. If it is not new and you are adding to your existing set up then you will not.
2052863
There are a couple of pins provided on the side which when connected (with a pushbutton switch, not included with the meter) would reset the amp-hour, watt-hour, peak watts and peak amps readout. Also, if you disconnect the unit from both (source and load) sides, the readouts would be reset.
1936720
The meter must have its own, separate power supply. I use a 12vdc transformer plugged into my inverter and it works great. I am able to monitor amps used by the inverter and other DC loads connected to my batteries as well as switch to see battery voltage. If you already have a separate power supply, you may have a bad meter.
2110039
You don't test continuity on an energized circuit. You can test the voltage on any part of the circuit with this meter. Be safe.
1117727
Depends on your use I would say. In my case an AC to DC power supply would have not been used since I am using a DC source to power the LED controller and repeater.
291732
I can't imagine it would be a problem. There aren't any pre-sets, for example, that could get lost with a power interruption.
947982
According to the documentation, the unit will remain OFF after a power failure. I believe this is a safety precaution.
1739254
No. The unit must be plugged in to an outlet and powered on in order to function.
2102597
This device is to tell you which breaker is on. Then you cut it off to work on the circuit. It will not work without power.
2247350
It can under the following conditions: The circuit is NOT powered-on. The cap to be measured is discharged manually by shorting it for 1-2 seconds before being measured/tested.
1818812
Either there is nothing drawing current or there is a short circuit and the supply turned itself off to protect its hardware.
1484539
Sorry, but it is connected to power and my power hasn't failed. As I said the customer service is A1 and you should ask them for details.