34
27
ENTER RATED
CURRENT: 250
'Y' TO CONTINUE
SPLIT SYSTEM TESTING (Cont.) PART A
CONNECT LARGE
LEADS TO THE
SYSTEM
'Y' TO CONTINUE
CONNECT SMALL
CLIPS TO THE
SYSTEM
'Y' TO BEGIN
LOADING . . .
#5 GENERIC VDROP
VOLTAGE DROPS
AT 250 AMPS
.21 POS .16 NEG
Scroll to 250 amps.
You are allowed a total of 0.5 VDrop
combined. Add the negative and
positive voltage drop for total voltage
drop. This example is within spec
with a combined drop of only .37V
Red to Starter battery post.
Black to Starter ground post.
Red to battery positive.
Black to battery negative.
The results will vary depending upon and the conditions of the cables. Both the
positive and negative circuit results will be indicated from the single test. If the test
does not pass, correct the connection or replace the cable and run the test again.
The BCT-200J will automatically resume the test after it is disconnected. Just answer
‘Yes” when prompted.
#6 GENERIC VDROP
VOLTAGE DROPS
AT 250 AMPS
.35 POS .29 NEG
This example is out of spec with a
total drop of .64V
KEY SWITCH VDROP™ TEST (Cont.)
Turn the ignition key to start position
and hold. Observe both volt results
Voltage is at magnetic switch coil
leads. External V is voltage at starter.
-VOLTMETER-
VOLTS
12.15V
EXT. V
12.40V
.15 POS .10 NEG
In this example the system
passed, the total voltage drop is
.25V which is less than the .5V
drop allowed.
End of test.
-VOLTMETER-
VOLTS
12.15V
EXT. V
12.40V
.15 POS .10 NEG
In this example the system is
out of spec. The 1.35 volt drop
exceeds the allowable .5 volt
drop.
Continue testing each leg of the
circuit.
-VOLTMETER-
VOLTS
11.08V
EXT. V
12V
.33 POS 1.02 NEG
-VOLTMETER-
VOLTS
0.00V
EXT. V 12.63V
0.00 POS 0.00 NEG
Should read voltage at ext. V. No
voltage at magnetic switch coil with
ignition key off.
