About X-431 Station
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Initial Use
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LAUNCH
Station
User's Guide
Tap or click [OK], test data will be shown on the screen.
Note: It is unnecessary to perform charging system and start system test after finishing battery test, but battery
test must be done before undergoing charging system and starting system test.
3). Outside the vehicle test
It only applies to battery test and detecting oating electricity will be ignored while performing battery test.
In Fig. Fig. Battery-1, tap [Outside the vehicle] to select battery test standard. The following operation steps
are identical to Steps 6 ~ 7 in Chapter Inside the vehicle test. Please refer to it for details.
4). Precautions on battery test
For the purpose of getting accurate test results, unless otherwise special required, all loads need to be
power off such as headlamp, engine etc. before testing battery.
The operating time required for charging system and actuation system test varies from person to person.
If the engine does not start or accelerate within 30 seconds, the system will prompt you “receiving timeout”
and return to the initial status.
Whether Engine is off or not has no inuence on charging and actuation test result after increased speed is
detected, but other loads need to be powered off.
The accuracy of battery voltage, charging voltage, start voltage is 0.01V in test results; CCA (Cold Cranking
Amps) precision is 5CCA.
Generally, charging voltage value is greater than starting voltage.
Charging voltage range is as follows: 13.8--14.5V for domestic vehicle; 13.3--15.5V for imported vehicles.
The voltage varies with different car models, so you have to judge based on related vehicle models. In
general, the DC voltage is stable, but it also varies with different revolution speed.
Starting voltage range: The value higher than 9.6V is regular, otherwise it is too low. Due to different
situations, whether the starting voltage is higher or not does not mean the vehicles or batteries are faulty.
For detailed faults, other special equipments are needed. To validate the accuracy of the value, the best
method is to collect the signals of starting and charging voltage and observe it on an oscillometer.
Generally, the voltage is lower than 11V for the bad cell battery, but it is possible that the battery is
completely exhausted or has a serious low capacity. In this case, just recharge your battery. Bad cell always
happens when the loads on a stopping vehicle are turned on for a long time.
Please note that it is normal for quick detecting of “Increase speed” because it follows the theory of
detecting “Increase speed”: If the detected voltage is higher than the previous battery test voltage, the
system will prompt you a message of “Engine has been speeded”
It has no inuence on test result in the event that engine’s output voltage or engine revolution is not very
stable. No matter whether the vehicle is accelerated or not, the output voltage only differs within 0.2V.
While doing inside the vehicle test, Kelvin clip is always found to be in poor contact. To remain it in good
contact, please shake it several times before testing. Take down the battery connector, and test it again, the
value probably varies. The deviation may arise from battery connector.
Pay more attention to connect the clip. The battery poles connect with conductor, which makes the clip has
a poor connection when testing battery. A tolerance of dozens of CCA occurs if the clip is out of position, or
oil, dust attaches on the pole. The gear and main body of clip should be fully matched with battery poles.
Notes:
1. Battery poles inside the vehicle are enveloped by connectors, which may produce some errors for test results. The
tolerance results from the resistance of connectors. The greater the resistance value is, the greater the tolerance
becomes. But generally, the tolerance does not affect the test conclusion.
2. Testing the battery separately generates an exact test result. The battery box is a very useful auxiliary tool for
quick test. If any problems were found, test it separately for getting an exact test result.
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