Jet H3655 Manuale utente

H3655

500AMP CARBON PILE BATTERY TESTER

TEST PROCEDURES / INSTRUCTIONS

WARNING:

1. Working in the vicinity of a lead acid battery is dangerous. Batteries generate

explosive gases during normal battery operation. It is of the utmost importance

that each time before using your tester, you read these instructions very

carefully.

2. To reduce risk of battery explosion, follow these instructions and those

published by the battery manufacturer and manufacturer of any equipment you

intend to use in the vicinity of the battery. Observe cautionary markings on

these items.

3. Do not expose the tester to rain or snow.

4. Do not operate tester with damaged cables-replace them immediately.

5. Do not operate tester if it has been damaged in any way. Take it to a qualified

auto technician for repair.

6. CARBON PILE LOAD IS ‘ON’ TO PREVENT BREAKAGE OF CARBONS

DURING SHIPMENT. BE SURE TO TURN LOAD ‘OFF’ BEFORE

CONNECTING TESTER TO BATTERY.

PERSONAL SAFETY PRECAUTIONS:

1.Someone should be within range of your voice or close enough to come to your

aid when you work near a lead acid battery.

2.Have plenty of fresh water and soap nearby in case battery acid contacts skin,

clothing or eyes.

3.Wear safety glasses and clothing protection.

4.If battery acid contacts skin or clothing, wash immediately with soap and water.

If acid enters eye, immediately flood eye with running cold water for at least ten

minutes and get medical attention immediately.

5.NEVER smoke or allow a spark or flame in vicinity of battery or engine.

6.Be extra cautious to reduce risk of dropping a metal tool onto the battery. It

could spark or short-circuit the battery or other electrical parts and could cause

an explosion.

7.Remove personal metal items such as rings, bracelets, necklaces and watches

when working with a lead acid battery. It can produce a short circuit current

high enough to weld a ring or the like to metal causing a severe burn.

IMPORTANT:

BOTH JAWS OF EACH CLAMP MUST FIRMLY ENGAGE BATTERY

TERMINAL OR IT WILL NOT FUNCTION PROPERLY.

PREPARING TO TEST:

1.Be sure area around battery is well ventilated while battery is being tested. Gas

can be forcefully blown away by using a piece of cardboard or other

non-metallic material as a fan.

2.Clean battery terminals. Be careful to keep corrosion from coming in contact

with eyes.

3.Inspect the battery for cracked or broken case or cover. If so damaged, do not

use tester.

4.Add distilled water in each cell until battery acid reaches level specified by the

manufacturer. This helps purge excessive gas from cells. Do not overfill.

5.Make load tests only on battery above 60°F(16°C).

6.If necessary to remove battery from vehicle to test, always remove earth

terminal from battery first. Make sure all accessories in the vehicle are off to

ensure you do not cause an arc.

1. CALCULATE STATE OF CHARGE

A. Before a battery can be load tested, you MUST determine the state of charge.

B. The hydrometer is a great tester to show condition of each cell, but on

batteries with non-removable caps the voltmeter is your only choice to

determine state of charge.

C. The specific gravity readings of open vent batteries should not vary more than

50 points between cells. If the variance is more than 50 points, replace the

battery. The specific gravity should be at least 1.230 in all cells. If not, charge

the battery until 1.230 is obtained. In case the battery is very low, a longer

period of time for charging may be required. After charging, remove the

surface charge from the battery. If charging the battery will not bring the

charge to 1.230 then the battery should be replaced.

D. Maintenance free and sealed batteries have an indicator built into the battery

cover. The color of this indicator verifies the gravity condition of the battery:

○If the green ball is visible, the battery is charged.

●If the indicator is dark and the green ball is not visible, the battery is

partially discharged.

◎If the indicator is light yellow, the battery is low on fluid and near the end of

its useful life. DO NOT ATTEMPT RECHARGING OR TESTING IF THE

INDICATOR IS YELLOW.

E. The battery must have a minimum 75% state of charge before being load

tested.

If battery state of charge is below 75%, load test results will NOT be accurate.

F. It is highly recommended that maintenance free batteries should be tested

with a voltmeter to determine state of charge.

Open Circuit

Voltage

Approximate

State-of

Charge

Average Cell

Specific

Gravity

OKAY to

Load Test

{

12.60

100%

1.255

}

OKAY to

Load Test

12.40

75%

1.225

DO Not

Load Test

{

12.20

50%

1.190

}

DO Not

Load Test

12.00

25%

1.155

11.80

1.120

OPEN CIRCUIT VOLTAGE TEST

A. Make sure load knob is in the OFF position.

B. Connect tester (+) Red lead to Battery (+) terminal.

C. Connect tester (-) Black lead to Battery (-) terminal.

D. If voltmeter reading is less than 12.4 volts, battery must be charged and

retested before continuing.

NOTE: If battery voltage is less than 12.4 volts after charging, replace the battery.

2. REMOVING THE SURFACE CHARGE

A. If your open circuit voltage reading is above 12.6 volts, remove the surface

charge before load testing. Failure to do so will result in inaccurate test

readings.

B. Three possible ways to remove a surface charge:

1.Turn headlights (high beam) on for 3 to 5 seconds.

2.Disable ignition: crank starter over for 10 to 15 seconds.

3.Using a variable carbon pile load tester, load battery for 10 to 15 seconds at

150 amp load. Make sure load knob is in the OFF position before

connection is made or removed.

After removing surface charge, let battery stand for 10 minutes to stabilize.

3. CALCULATE THE LOAD

A. Look for either the “Cold Cranking Amps” CCA rating or the “Load Test Amps”

rating on the battery decal.

B. The load test amps rating should be on half (1/2) of the cold cranking amps

rating.

C. If the amp hour rating is provided, load test amps should be 3 times the hour

rating.

D. If the CCA rating and amp hour rating are not available, refer to battery

catalog for recommended CCA rating.

E. Sometimes the rating cannot be located, in that case the engine size may be

used as a guide to determine the battery’s ampere rating. However, it is

recommended to use the manufacturers recommendations, whenever they

can be located.

Engine Size

Cubic Inches

Cu. Centimeter

Battery load Amp Rating

Small

100 to 200

1600 to 2400

100-150 Amps

Medium

200 to 350

2400 to 5600

125-200 Amps

Large

350 to 500

5600 to 8000

175-300 Amps

4. LOAD TEST THE BATTERY

A. The battery must have at least 75% state of charge before load testing.

B. The battery should not have been heavily used or tested within the last 10

minutes.

C. Connect Tester leads to battery (＋) and (－) terminals. Read AMPS position.

Make sure load knob is in the OFF position before connecting.

D. Apply a load to the battery equal to 1/2 of CCA rating.

E. Hold load for 15 seconds.

F. Read voltage at the end of the 15 seconds and then turn off load.

G. Compare reading with PASS/FAIL voltage chart on side of tester, or use chart

shown as below to compensate for battery temperature.

At Battery Temperature Of

Not Voltage Should Not Drop

Below

70℉( 21℃)

-------------------

9.6 Volts

60℉( 16℃)

-------------------

9.5 Volts

50℉( 10℃)

-------------------

9.4 Volts

40℉(5℃)

-------------------

9.3 Volts

30℉(－1℃)

-------------------

9.1 Volts

20℉(－7℃)

-------------------

8.9 Volts

10℉(－12℃)

-------------------

8.7 Volts

0℉(－18℃)

-------------------

8.5 Volts

H. Battery is GOOD if voltage is at or above volt readings shown on chart.

Battery is BAD if voltage drops below volt readings shown on chart.

WARNING

VARIABLE LOAD CARBON PILE TESTERS PRODUCE

HEAT WHEN IN USE. CARE MUST BE TAKEN TO

ALLOW SUFFICIENT TIME TO COOL DOWN BETWEEN

TESTS TO AVOID INJURY DUE TO HEAT BUILD UP.

NOTE: On vehicles with multiple batteries, only one battery at a time should be

tested.

5. TESTING THE CHARGING SYSTEM (ALTERNATOR &

REGULATOR TEST)

A. Connect the tester the same as for battery testing.

B. Start the engine and allow it to reach normal operating temperature.

C. Run engine at 1200 to 1500RPM. CAUTION: Stay clear of moving engine

parts. Do not turn on the load switch.

D. Read the voltmeter. A reading in the red band area indicates a problem in the

charging system that will undercharge a battery; if the meter is beyond the OK

area, the charging system is likely to overcharge the battery.

6. STARTER MOTOR TEST (12 VOLT VEHICLES)

This test identifies excessive starter current draw, which makes starting difficult

and shortens battery life. Perform battery load test-proceed if battery is GOOD.

ENGINE MUST BE AT NORMAL OPERATING TEMPERATURE FOR THIS

TEST

A. Connect negative (black) clamp to the negative (NEG, N, －) battery post.

Connect positive (red) clamp to the positive (POP, P, ＋) battery post. Rock

clamp back and forth to ensure a good electrical connection.

B. Disable the ignition system so the car will not start.

C. Crank the engine and note the voltage reading during cranking.

D. A meter reading of 9 volts or less indicates excessive current draw. This may

be due to bad connections or a failing starter motor; or the battery is too small

for the vehicle’s requirements.

Indice

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