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MULTIMETER USAGE - CONTINUED
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TM-10-3930-660-24-2 Truck Forklift; 6 000 lb. Variable Reach Rough Terrain Manual
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RELAY INSPECTION AND TEST
TM 10-3930-660-24-2
ELECTRICAL GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED
0313 00
MULTIMETER USAGE - CONTINUED
(2)
Bad Voltage Drop.
(a) Multimeter (D) is used to measure voltage drop across a bad splice connection. The voltage reading at
multimeter (D) is high (for example 7 volts). This means the resistance across this splice is high,
resulting in high voltage drop. This would cause lamp to be dimly lit when switch is closed.
24 - VOLT
BATTERY PACK
BAD SPLICE
CONNECTION
SWITCH
LAMP
(CLOSED)
D
409-1928
(b) Multimeter (E) is used to measure voltage drop across an open circuit, in this case an open switch.
This could also be used to demonstrate the reading in a circuit with a broken wire. The voltage reading
at multimeter (E) will be approximately 24 volts. This means that an open circuit or an open switch
has infinite resistance, causing all voltage to be lost.
24 - VOLT
BATTERY PACK
SWITCH
LAMP
(OPEN)
E
409-1929
0313 00-11

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