6
Device power / voltage measurement
•
Using a piece of 16-22AWG black wire, connect terminal 1 to the system ground (negative side
of the battery / solar panels / power source / chassis)
•
Using a piece of 16-22AWG red wire connect terminal 8 (V1) to the positive side of the power
source using a fuse or circuit breaker in between 0.1A and 2A. This is here to protect the wiring
so install it close to the battery.
•
If applicable, connect terminal 7 (V2) to the second battery (or node in the system) that will be
monitored. Use a similar fuse as well.
External relay (optional)
•
If an external relay is used, connect one side of the coil to RELAY (terminal 3) and the other side
to the load side of the shunt. In this case the battery voltage cannot exceed 32V (Check the user
manual for more details). Use 16-22AWG wire. Crimping a female spade connector may be
required. Choose blue or yellow, or any color different than black or red.
•
If the Thornwave Labs SSR is used, connect RELAY (terminal 3) to the control terminal of the SSR
Check all the connections again. Verify that the high current wires are tight. Use fuses or circuit
breakers where applicable. Once all these have been checked, insert the female terminal block into the
PowerMon device and reconnect the battery or the power source. The device should become visible
on any mobile device that supports Bluetooth Smart (LE) and is running the PowerMon app.