IPA Tools 9007A Smart MUTT Head - Manual (Page 18)

18
POWER TO TESTER WARNING INDICATORS
(See. Fig. 6)
VOLTAGE INDICATOR
• When the battery supply voltage drops to 9V or less, the MUTT ® shuts down
power to all circuits and the voltage indicator flashes red.
• Charging or replacing the battery is required to continue testing.
• Between 10V-11V, the indicator is RED, showing the battery is too low.
• Between 11V-12V, the indicator is YELLOW, showing the battery is low.
REVERSED POLARITY INDICATOR
• Flashes when battery clamps have been crossed at the battery posts.
• Correcting polarity of the battery terminal clamps deactivates the warning.
• The MUTT ® is internally protected from polarity reversal.
RED TRAILER WARNING INDICATORS
These signals indicate a fault.
OVERLOAD INDICATOR
• When the MUTT ® confronts a constant amperage draw above 20 Amps or a
direct short, the indicator flashes and the beeper sounds.
• Voltage is cycled to the shorted or overloaded circuit in 3 second intervals to
aid in diagnosing the extreme amperage draw. (This function is comparable to
an auto reset circuit breaker). The MUTT ® goes into “Pulsar Mode.”
OPEN CIRCUIT INDICATOR
• In the instance a selected circuit is not completed through the trailer harness,
(e.g., a faulty ground or no load detected), the Open Circuit warning flashes
and sounds.
CROSSED CIRCUIT WARNING CHARACTERISTICS
• Green Circuit Indicators flash to show troubled circuits.
• In the instance of crossed circuits where a circuit (or circuits) other than the
selected circuit are inadvertently powered by the selected circuit, the
unselected Circuit Indicators flash while the selected indicator remains steady.
This is caused by worn wires or improperly wired plugs on the trailer. In some
cases it may be normal for more than one circuit to be operated
by a single circuit, such as certain ABS systems and custom
aftermarket lighting.
• Refer to trailer specific wiring schematics for the unit in question.
GROUND INTEGRITY WARNING
(With the Use of Chassis Ground Cable)
Ground Integrity has been explained in Testing Procedure (Pg. 12, #9.)
AUTO SHUTDOWN FEATURE
To preserve battery life, the MUTT® enters a ‘sleep’ mode if inactive after 20 minutes
with the power ON.
• A sound is emitted every 10-20 seconds to inform the operator of the condition.
• Activation of any test mode takes the MUTT® out of ‘sleep’ mode.