Testing a charging station is a common topic on the OpenEVSE forum. OpenEVSE firmware/hardware performs an extensive self test function built in, the average builder does not need any specialized equipment. For those who wish to extend the hardware or firmware more extensive testing may be prudent. Over the years, I have collected many tools to help test various aspects of a Electric Vehicle Charging Station. Recently I have searched for (and found) a better tool, but more on that topic later.
My current tool bag consists of:
A Digital Multi-meter (with Frequency Measurement) - $100
DSO Quad scope (Frequency and duty cycle) - $200
No Contact Current measurement meter - $75
Fluke IR Thermometer - $90
Fluke No Contact AC detect - $30
In total about $500 in tools to test a Charging station. This is just too much for the average builder so I started a search for tools to offer on the OpenEV store. I ordered a lot of different units and finally found something great...
I have put together an exclusive package for the OpenEV Store that does everything my previous suite of tools did at less than half the cost. The center of the OpenEV package is the Extech (A FLIR Company) Multi-meter. Also included is a set of standard probes, current measurement probe and a case. The meter has a built in IR thermometer and can read both Frequency and duty cycle.
So in summary you can measure,
-Pilot Signal Frequency
-Pilot Signal Duty Cycle
-Temprature Type K probe
-AC non-contact Current (up to 200A)
-Current inline (up to 20A)