Owners manual

In this process.(for 24V system<DI-215C>, the voltage should be higher

than 16V when staring up the engine)

(5) Press <ESC> to return step (2).

5-3-3 instruction of engine system test

★ the lowest voltage higher than 9.6V (for 24V system, the reading is over

16V) means good.

★ the lowest voltage lower than 9.6V (for 24V system, the reading is under

16V) means no good.

Please check the relative connections, wire and engine. Also the

terminals of the battery should be checked if rusted.

5-4 maximum load system test

5-4-1 preparation

 Please star the engine firstly.

5-4-2 procedure of operation

(1) When the engine is working, connect the red clamp to the positive polar

of the battery, and the black one to the negative polar. Make sure they are

well connected in order to avoid affected result.

(12V system)

6-2 Can it be affected by the installation of negative current

inside the vehicle?

All the negative currency will affect the result. Therefor please remove

the negative currency prior to checking, in order to achieve the accurate

data.

6-3 Can this tester predict when does the battery become

useless?

The internal resistance of the sealed lead-acid battery is complicated. It

is generated by ohm internal resistance, concentration polarization internal

resistance, chemical reactions internal resistance and interference effect

caused by double capacitance’s charging. The ingredient of internal

resistance and its relative content will change with different test method and

different test moment, which can lead to different tested value of the internal

resistance. And there is no strict relationship between internal resistance (or

conductance) and capacitance of the sealed lead-acid battery. So it is

impossible to predict the life of battery according to a single battery’s internal

resistance. But it can be predicted the life of the battery will be over soon

from the sudden increase of its internal resistance and decrease of its

conductance.

6-4 Is the CCA value tested by this tester correct?

CCA is looked as a control standard with the produce of the battery.

According to the accumulated records, the tested value of new battery is 10-

15% higher than the standard value, and along with consuming of the battery,

the value is getting close to standard, even lower afterward.

6-5 What is the difference between the method of this tester

and the load test method?