PZEM Multi-Function Meter Enclosures

thingiverse

I designed some enclosures for PZEM 013 DC Multi-Function Meter and PZEM 022 AC kits to make portable Current draw and voltage fluctuation for generators, invertors, automotive, and battery banks when running a load among other values. Here is a demo video of it in action: https://youtu.be/_2YjzA-wS6E The PZEM 013 DC Multi-Function Meter case base includes a covered well to safely hold the 100 AMP shunt and wire connections. There is plenty of space to add a 9v low voltage battery and switch if you will be using this to measure 9v or less to power the meter display. I recommend using a male & female 2.1mm plug DC power pigtails with 22 AWG wire leads for input and output, as the plugs will seat snugly in the 10mm end holes. The PZEM 022 AC Mult-Function Meter case base has space for the Rogowski coil and 16 AWG AC wiring. I cut in half a 3 foot extension (16 AWG NEMA-5-15R to NEMA 5-15P). The circuit diagram calls for several 3 way connections so I used solder & wire nuts to ensure to reduce chance of an internal short. Print with ABS. If this is going to be used out doors, I recommend sealing the enclosure lid with Silicone Adhesive. For extra rugged use, mask display and coat the entire box in Silicone Adhesive and then dip in the lower half to the rim in epoxy resin. This will make a cushioned, tough shell.