GxT V040-01, Battery Tester - Manual (Page 4)

BATTERY LOAD TEST
CAUTION
Wear Safety Glasses,
Do not break live
circuits at the battery
t e r m i n a l s , Av o i d
accidentally shorting
the insulated battery
terminal to any ground
metal. Never put
a wrench on a live
battery wire terminal.
Burns may be the result. Disconnect the battery chassis cable
first
1. Be sure the Load Knob is turned to OFF before connecting
the analyzer cables to the battery. Take note of the safety
precautions on the back cover of this manual.
2. Connect the analyzer Battery Clamps to the battery
terminals; Red to positive, Black to negative. The cable jaw
contact from each clamp must make a solid connection to
the battery terminal to assure good voltage measurements
and avoid sparks during load tests. Side terminal batteries
may need special adapters attached to make solid
connections for high current load tests.
4. With the Amp Probe jaws closed and not around any wires,
press the Zero Amps buttons until the Amps Display shows
“000”
5. Connect the Amp Probe around either analyzer load lead.
Open Circuit Voltage Test
Measure the open circuit (no load) stabilized voltage. A
stabilized battery has no “surface charge”, which means that
the electrolyte has had a chance to remix and shed gas bubbles
after current flow has stopped. With less than 12.4 volts, first
recharge the battery.
Open Ckt. Volts 12.6 12.4 12.2 12.0
% of Charge 100 75 50 25
BATTERY
CHASSIS
BLACK RED
Zero Amp Meter.
Then Place
AMP PROBE around
either analyzer cable.
TECHNICAL SUPPORT & SERVICE
Questions or inquiries about service can be answered by contacting
GxT, Inc., at: Toll Free (800) 627-5655. Fax: (231) 627-2727, Toll
Free (231) 782-0616
When sending an item to the factory address it to: GxT, Inc., 520
MM Riggs Drive., Cheboygan, MI 49721-1061 Include a note
describing the problem.
TYPICAL STARTER CRANKING DRAW
Engine Size Cubic Inches Liters Amperes
100 to 200 1.6 to 3.2 100 to 200
200 to 350 3.2 to 5.6 125 to 250
350 to 500 5.6 to 8.0 150 to 300
NOTE: Higher starter amps may be encountered if engine
temperatures are extremely hot or cold.
9. Test Conclusions. The system is good if the cranking speed
is satisfactory and the battery voltage stayed above 9.6 volts.
If Crank Speed was slow use the following chart.
VOLTAGE AMPS LIKELY CAUSE
Below 9.6 High Bad Starter or a very hot or cold
engine.
Below 9.6 Low Bad Battery or Loose Battery
Terminals.
Above 9.6 Low Connections at Starter or
Solenoid.