Electrical testing, Tools required, Gun voltage output (sci) – Ransburg No. 2 Air Motor Atex Approved Unit 80086-XX User Manual

Page 31

AH----12

12----01.03 No. 2 Air Motor Handgun

01.03 No. 2 Air Motor Handgun

Electrical Testing

If an electrical malfunction should occur in the

If an electrical malfunction should occur in the
system, check the hand gun, high voltage ca-

system, check the hand gun, high voltage ca-

system, check the hand gun, high voltage ca-
ble, supply fuses, and the power source ac-

ble, supply fuses, and the power source ac-

ble, supply fuses, and the power source ac-
cording to the prescribed test procedures for

cording to the prescribed test procedures for

cording to the prescribed test procedures for
each. After these electrical tests have been

each. After these electrical tests have been

each. After these electrical tests have been
completed and it is determined that a fault

completed and it is determined that a fault

completed and it is determined that a fault
may exist in the power supply, make the high

may exist in the power supply, make the high

may exist in the power supply, make the high
voltage short circuit current test as indicated

voltage short circuit current test as indicated

voltage short circuit current test as indicated
in the power supply service manual.

in the power supply service manual.

NOTE

These tests should be made as advised under

These tests should be made as advised under
the “Maintenance” section of the manual.

the “Maintenance” section of the manual.

Tools Required

76652

76652----02 or 76652

02 or 76652

02 or 76652----04 Ransburg

04 Ransburg

Testers Kit

Gun Voltage Output (SCI)

The Short Circuit Current (SCI) will determine

The Short Circuit Current (SCI) will determine
if the high voltage portion of the system is op-

if the high voltage portion of the system is op-

if the high voltage portion of the system is op-
erating correctly by shorting the maximum

erating correctly by shorting the maximum

erating correctly by shorting the maximum
current flow to ground. The SCI reading on

current flow to ground. The SCI reading on

current flow to ground. The SCI reading on
either the power supply current meter and/or

either the power supply current meter and/or

either the power supply current meter and/or
the externally connected meter at the contact

the externally connected meter at the contact

the externally connected meter at the contact
brush should be between 80 and 115 micro-

brush should be between 80 and 115 micro-

brush should be between 80 and 115 micro-
amperes (.08 and .115 milliamperes). Read-

amperes (.08 and .115 milliamperes). Read-

amperes (.08 and .115 milliamperes). Read-
ings outside this range indicate possible com-

ings outside this range indicate possible com-

ings outside this range indicate possible com-
ponent failure and indicate the need for fur-

ponent failure and indicate the need for fur-

ponent failure and indicate the need for fur-
ther testing and/or repair. There are two pro-

ther testing and/or repair. There are two pro-

ther testing and/or repair. There are two pro-
cedures that can be used to perform an SCI

cedures that can be used to perform an SCI

cedures that can be used to perform an SCI
Test.

Test.

NOTE

•

If a proper reading is not obtained, per

If a proper reading is not obtained, per----
form the same test on a spare gun (if

form the same test on a spare gun (if

form the same test on a spare gun (if
one is available). If the spare gun test

one is available). If the spare gun test

one is available). If the spare gun test
reading is normal, refer to the

reading is normal, refer to the

reading is normal, refer to the
"Troubleshooting Guide" in the

"Troubleshooting Guide" in the

"Troubleshooting Guide" in the
"Maintenance" section. If no spare gun

"Maintenance" section. If no spare gun

"Maintenance" section. If no spare gun
is available, perform a short circuit cur

is available, perform a short circuit cur

is available, perform a short circuit cur----
rent test of the power supply.

rent test of the power supply.

•

When the motor circuit is activated the

shaft will be rotating and the HIGH

shaft will be rotating and the HIGH
VOLT

VOLT

VOLT----AGE WILL BE ON.

AGE WILL BE ON.

External Meter Test

1. This method uses the test assembly

1. This method uses the test assembly
(76652

(76652

(76652----02 or 76652

02 or 76652

02 or 76652----04). It must be used if

04). It must be used if

the power supply DOES NOT have a micro-

the power supply DOES NOT have a micro-
ampmeter.

ampmeter.

ampmeter.

2. Remove the bell from the gun. Connect

2. Remove the bell from the gun. Connect

2. Remove the bell from the gun. Connect
one of the alligator clamps of the test meter

one of the alligator clamps of the test meter

one of the alligator clamps of the test meter
to the contact brush and the other to ground.

to the contact brush and the other to ground.

to the contact brush and the other to ground.

3. Set the switch on the test meter to µA

3. Set the switch on the test meter to µA

3. Set the switch on the test meter to µA
(microamperes).

(microamperes).

(microamperes).

4. Turn the power supply ON.

4. Turn the power supply ON.

4. Turn the power supply ON.

4. Activate the motor circuit at the gun. The

4. Activate the motor circuit at the gun. The

4. Activate the motor circuit at the gun. The
test meter reading should be approximately

test meter reading should be approximately

test meter reading should be approximately
80 to 115 microamperes.

80 to 115 microamperes.

80 to 115 microamperes.

Power Supply Meter Test

Power Supply Meter Test

1. This method uses the microampmeter locat-

1. This method uses the microampmeter locat-
ed on the power supply.

ed on the power supply.

2. Remove the bell from the gun. Rotate the

2. Remove the bell from the gun. Rotate the
contact brush outwards and touch the contact

contact brush outwards and touch the contact

contact brush outwards and touch the contact
brush to ground.

brush to ground.

3. Turn the power supply ON.

4. Activate the motor circuit at the gun. The me-

4. Activate the motor circuit at the gun. The me-
ter of the power supply should read approxi-

ter of the power supply should read approxi-

ter of the power supply should read approxi-
mately 80 to 115 microamperes.

mately 80 to 115 microamperes.

MAINTENANCE