Tester Verification - Kent-Moore J-44175-A Manuel D'instructions

Perform a verification test of the J-44175-A Fuel Composition Tester.
Observe the "air frequency" and the "acetone frequency."
Use only pure acetone from containers that have been kept closed. Pure acetone
can be purchased at hardware or paint stores. Most body repair shops use acetone.
Make sure the tester is clean and dry. Do NOT use compressed air to dry
the tester as "shop air" can contain water. Fingerprints, sweat, water,
moisture or any other debris in the fuel bowl can make the tester read
inaccurately.
1. Push the power button to turn the tester on.
Setup
2. Connect a DMM to the tester "+" and "–" terminals. Insert the
DMM test probes securely into the tester's tip jacks at the base of the
tester handle. Make sure the test probes remain securely connected.
Needle-point insulation-piercing probes will not stay connected.
3. Set the DMM to AC Hz (frequency) scale and take a reading.
AIR FREQUENCY TEST
Step 1
1. No fuel sample (air only) in the test cell.
2. Is the DMM frequency reading between 35 Hz and 48 Hz?
ACETONE FREQUENCY TEST
Step 2
1. Fill the test cell with pure acetone. See NOTE above about acetone.
2. Is the DMM frequency reading between 130 Hz and 142 Hz?
Tester is verified. Drain the tester.
Make sure the tester is clean and dry. Do NOT use compressed air to
Step 3
dry the tester as "shop air" can contain water. Fingerprints, sweat,
water, moisture or any other debris in the fuel bowl can make the
tester read inaccurately.
Replace the 9-volt battery and retest, starting at Step 1. If the results are
Step 4
still outside the specified limits, the tester will need tobe sent out for
repair. See "REPAIR" in last pages of this manual.
Figure 5

TESTER VERIFICATION

Use the procedure listed below.
NOTE: Pure acetone is required for this test.
When the tester is verified to be
operating properly, the user is now
ready to perform the diagnostic
procedures.
8
_ _
YES NO
Go to Go to
Step 2 Step 4
YES NO
Go to Go to
Step 2 Step 4