8
TROUBLESHOOTING
Symptom: The device indicates an awkward current reading but there is no current flowing through it
(or the external shunt)
Possible Causes:
• If using the integrated shunt, terminals 4 and 5 may not be connected together. To fix this,
connect terminals 4 and 5 together.
• If the user performed the "Zero Current” procedure, the device assumed that the external
current was zero and applied an offset to the measurement in order to bring the indicated
value to zero. If the actual device current was not zero at the time the “Zero Current” was
performed, the offset applied will not be correct which leads to the wrong reading. To fix this,
make sure the actual current is zero (disconnect the current wires if required) and execute the
“Zero Current” procedure again.
Symptom: The PowerMon app is not finding any device
Possible Causes:
• The PowerMon device is not powered. Check if power is available at the green connector
terminals 8 and 1 (8 is positive, 1 is negative).
• The phone Location Services is disabled, or the app does not have permission to access the
Location Services.
• The user tried to pair the PowerMon device as if it were a classic Bluetooth device. If this is the
case, un-pair the PowerMon and use the app.
Symptom: After updating the firmware from a version earlier than 1.70, iOS connects to the device
but does not read any value. All measurements display “n/a”.
Possible Causes:
• iOS has the bad habit of caching information about a BLE connection and refusing to connect if
the device changes. Reboot the phone
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