Troubleshooting - RC watt's up WU100 User Manual

Troubleshooting

12 TROUBLESHOOTING
Problem
Don't see the Startup
Screen after applying
power
Display screen characters
are dim
Only have volt readings –
no Amps, Power or other
readings
Auxiliary power not
working
"Watt's Up" & "Doc Wattson" Watt Meter and Power Analyzer User's Manual
Possible Remedies
1. Make sure the LOAD side wires are
not shorted together or connected to
something that is shorting them.
2. Check you have a power source
(battery or charger) supplying at
least 4.0 V connected to the
SOURCE side wires or to the
Auxiliary Power Connector.
3. Check wiring Polarity. The Red wire
should be connected to the positive
(Red, +, Positive, etc.) side of the
power source and the Black wire to
the negative side.
4. Try a 9 Volt consumer electronics
type alkaline battery as the source
power. If this works, your other
power source is likely too low a
voltage.
5. Make sure reset signal on pin 3 of
Aux. connector is not connected to
0V.
1. Probably due to low voltage. Check
you have a power source (battery or
charger) supplying at least 4.0 V
connected to the SOURCE side
wires or to the Auxiliary Power
Connector.
1. Check the connections on the LOAD
side are good and have correct
wiring polarity and that any switches
or devices that must be turned on are
on.
2. Test the Watt's Up is working with a
known charged battery of sufficient
voltage connected to the SOURCE
side wires and a simple, known good
load like a brush type motor, 110 V
100 W light bulb or RC receiver.
3. The Watt's Up only measures
currents flowing in the direction of
SOURCE to LOAD. Make sure that
the setup is arranged tat way. For
example, a battery on SOURCE,
ESC & Motor on LOAD or Battery
charger on SOURCE and
rechargeable battery on LOAD.
1. Check the 3-pin servo type plug is
inserted properly. Black (Negative,
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RC Electronics, Inc.