EN
OPERATING INSTRUCTIONS 11-984
Product Introduction
BATTERY TESTING INSTRUMEINT
This product is a kind of portable instrument used to test batteries for
determining their capacity state which is
di
vided into three sections ,
namely , the "consumed ", "recharge" and " normal ". All these are directly
and speedily shown through direct perception on the graduated disc to
judge the quality of a battery. In addition this instrument can also check
whether the charging system is in good or bad conditon.
Structure and Characteristics.
This product consists of D. C. Voltmeter , load resistance, instantaneous
contact switch, housing and testing clamps The capacity state of a battery
is shown in 3 sections : red, yellow , and green to show the 3 states ,
namely , the "consumed " , " recharge" and
"nor
mal" respectively.
Thechnical parameters
Range of measurement :
The rated voltage of the battery to be tested : 6V, 12V
Rated capacity ofthe battery to be tested: 200-1000 CCA
Type of indication : 3 sections , red , yellow and treen to show the "
consumed" , " recharge" and " normal " state
respec
tively.
Way of testing : manual instantaneous contact type. Each measurement
should be done within 10 seconds.
Precisions: 2.0 level
Measuring limit: 0- 16V
This product meets the enterprise standard.
Work and service:
Testing preparation:
1.
During the test , its surrounding should be well venti- lated.
2.
Clean the measuring ends of the battery to be tested.
3.
Check the battery for broken part or damage.
4.
If it is necessarey to remove the battery from the
vehi
cle, first
remove the earthing end of the battery , and other
ac
cessories
are taken out carefully so as to aviod electric are.
Test of the Battery:
1.
First check if the needle of the instrument points to zero position on
the left of the graduated disc; if not , turn the zreo adjuster in the
middle of the instrument conver until it points to zero.
2.
Connect the red clamp to the positive terminal of the battery , while
the black one is connected to the negative
ter
minal.
Then instrument needle shoule move away from zreo to the right side. If it
turns in the other direction , this shows that the clamp connection is wrong
, and if there is no reading at all (i, e. the needle stays at zero position)
check if the
test
ing clamp is properly connected with the terminals , (Fig.
3. 2 ).
Fig. 3. 2 The connection diagram of battery testing.
3.
Turn the load switch to the 'on' position. Keep at that position until
the needle is steady , but don't exceed 10 seconds.
4.
Read the battery state on the graduated disc
Analysis of Battery :
On-load test
Battery state:
The
reaction
after
the
instrument
beingloaded (i.e. the load switch is turned to
"on" postition)
OK or green
section
Battery capacity is srfficient. Whether the
battery is fully charged or not can be checked
by measur- ing its specific gravity ( spgr for
short) and recharge it to its full extent (shown
in 5) .
Weak or bad
condition; but
indication is
steaey
Battery capacity is not sufficient. This may be
due to the following two factors : (1) the
damaged
bat
tery , (2) insufficient recharge.
Which one of the two factors can be
determined by checking the specific gravity.
If the specific gravity is larger than 1. 225 ,
the battery is damaged ; if it is less than 1.
225, recharge it and test again. If the
vari
ation exceeds 0. 025, this shows that the
battery has been damaged; if the recharge
cannot reach the fully charged specific
gravity , the shows that the battery is aged or
ineffective.
Weak or bad
condition and the
value is falling
The battery is perhaps disqualified, Makd
quick inspection, release the load switch and
check the reaction on the voltmeter . If the
voltmeter needle reaches or exceeds 12
volts within a few seconds, the battery may
be damaged. If the needle gradu-
ally
reaches 12 volts, the battery has been used
up. Precision results can be obtained by
checking the specific gravity.
If the battery capacity is found insufficient during on
-load test , keep it steady for a few seconds. Then measure the open-
circuit voltage. If the percentage value reaches or exceeds 75% (i, e, the
voltage value
≥
12. 4V) , this indicates that the battery has been sufficiently
charged. If the recharge percentage reaches 75% , but it is disqualified
during the on - load test , it is necessary to replace the battery. If the battery
doesn't reach75%, it is necessary to recharge, make on-load test again. If
the needle falls , it is necessary to replace the battery. The values of 12-
volt batteries are given in the
fol
lowing table, while those of 6-volt
batteries can be obtained by halving these of the 12-volt ones
Open
–
circuit
voltage (V)
11,7
12,0
12,2
12,4
12,6
Recharging
perecentage
0%
20%
50%
75%
100%
Testing the Recharge System :
1.
Connect the testing instrument in the same way as that for testing
the battery
2.
Start the motor to reach the normal operation
temper
ature.
3.
Start the motor at the speed of 1200-l500rpm.
4.
Note: Keep the operating motor clean. Don 't press the load switch.
5.
Reading. The reading given in the red section
indi
cates that there
is some trouble in the recharge system, and the battery charge will
not be able to reach its full extent. The readings within the OK
section indecates the charge system is in good condition.
Precautions:
1.
It is strictly forbidden to expose the testing instrument to rain or
snow.
2.
No smoking or fire is allowed in the vicinity of the battery. Don 't let
any metal tool fall on the battery to prevent spark or short circuit of
battery or other electric equipment causing possible
explosion.Never use a faulty battery. It should be replaced at once.
3.
The time for each test should not exceed 10 seconds.
