OWNER’S MANUAL
Model: PST-200
100 Amp Digital Battery Load
Tester/Charging System Analyzer
For 12 Volt Batteries
ELECTRIC CORPORATION
MT. PROSPECT, IL 60056
Send Warranty Product Repairs To:
Customer Returns
P.O. Box 280
1025 E. Thompson Avenue
Hoopeston, IL 60942-0280
Questions? Call Customer Service
1-800-621-5485
00-99-000438/1004
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If the tester indicates poor battery condition, allow the battery to stabilize for a few
minutes and check the open circuit voltage with voltmeter. This is a good measure
of the percent charge in the battery. The battery is considered charged if it mea-
sures 75% or more. If it failed the load test with 75% charge or above, it should be
replaced. If the battery charge measures less than 75%, it should be charged and
load tested again. Replace the battery if it fails again. The values in the following
chart are for a 12 volt battery:
OPEN CIRCUIT VOLTS*
PERCENT OF CHARGE
11.7 Volts or lower
0
12.0
12.2
25
50
75
100
12.4
12.6 or higher
TESTING THE CHARGING SYSTEM - after battery load test
1. With the tester still connected to the battery, press “START TEST” to toggle the
“TEST STATE” lights from “LOAD” to “CHARGING”.
2. Start the engine and allow it to reach normal operating temperature.
3. Run engine at 1200 to 1500rpm. CAUTION: Stay clear of moving engine parts.
4. Read the results. Illumination of the RED-”BAD” light indicates a problem in the
charging system that will undercharge a battery (less than 13.6V), or overcharge
the battery (over 14.8v)
STARTER MOTOR TEST (12 VOLT VEHICLES ONLY)
This test identifies excessive starter current draw, which makes starting difficult
and shortens battery life. Perform battery load test-first to make sure battery is in
“GOOD” condition.
ENGINE MUST BE AT NORMAL OPERATING TEMPERATURE
1. Connect negative (black) clamp to the negative (NEG, N, -) battery post. Connect
positive (red) clamp to the positive (POS, P, +) battery post. ROCK clamps back
and forth to ensure a good electrical connection. Do not click “START TEST”.
2. Disable the system ignition so the vehicle engine will not start.
3. Crank the engine and note the voltage reading during engine cranking.
4. A meter reading of 9 volts or less indicates excessive current draw. This may be
due to bad connections, a failing starter motor, or the battery is too small for the
vehicle’s requirements.
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LIMITED WARRANTY
SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER
DRIVE, MOUNT PROSPECT, ILLINOIS 60056-2179 MAKES THIS LIMITED
WARRANTY TO THE ORIGINAL PURCHASER AT RETAIL OF THIS PROD-
UCT. THIS LIMITED WARRANTY IS NOT TRANSFERABLE.
Schumacher Electric Corporation warrants this battery tester for six months
from date of purchase at retail against defective material or workmanship. If
such should occur, the unit will be repaired or replaced at the option of the
manufacturer. It is the obligation of the purchaser to forward the unit together
with the original sales receipt, transportation and/or mailing charges prepaid
to the manufacturer or its authorized representative.
This limited warranty is void if the product is misused, subjected to careless
handling, or repaired by anyone other than the manufacturer or its authorized
representative.
The manufacturer makes no warranty other than this limited warranty and
expressly excludes any implied warranty including any warranty for conse-
quential damages.
THIS IS THE ONLY EXPRESS LIMITED WARRANTY AND THE MANUFAC-
TURER NEITHER ASSUMES NOR AUTHORIZES ANYONE TO ASSUME
OR MAKE ANY OTHER OBLIGATION TOWARDS THE PRODUCT OTHER
THAN THIS EXPRESS LIMITED WARRANTY. THE MANUFACTURER
MAKES NO WARRANTY OF MERCHANT ABILITY OR FITNESS FOR PUR-
POSE OF THIS PRODUCT AND EXPRESSLY EXCLUDES SUCH FROM
THIS LIMITED WARRANTY.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LENGTH OF IMPLIED
WARRANTY SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT
APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY
ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
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