Fault Indication; Technical Data - Bosch T 12 200 E Betriebsanleitung

8 EN
5. General explanations
5. 1 Cold test current
If specified on the battery, the cold test current (A) has
priority over the nominal capacity (Ah) when setting the
current selector switch (10).
The tester permits an approximate function test of the
alternator and governor in automobiles by the voltage
indication on the voltmeter. (Display selector switch set to
position',,A").
5.2 Influence of the actual battery condition on the
test result:
5.2. 1 New batteries
The full capacity of new batteries is achieved only after
several charging/discharge cycles. For this reason, dry-
precharged batteries should not be tested immediately after
filling with acid. If this is done, the display will remain
under 100%.
5.2.2 Test after previous battery charging
Batteries which have been charged for a long period directly
before testing normally initially produce more favorable
results independent of age and condition. The actual
condition becomes evident only after a rest period or load
phase. The test should be performed at the earliest after a
rest period of 1 h, particularly after a long period of charging
with a mains charger. If the battery is installed in the motor
vehicle and charged as a result of a long journey, it is possible
to counteract the above effect by testing twice.
5.2.3 Exhausted batteries
Long standing times in discharged condition can lead to
permanent damage of starter batteries. Intermediate char-
ging must take place if the discharge process has gone so
far that testing is no longer possible. For this purpose, the
battery should be charged for approx. 1/2 hour with a rapid
charger with voltage limitation function. Longer charging
before testing does not offer any advantages.
8 789 929 499 (2005-01-10)
5.2.4 Water consumption
Water from the battery electrolyte is consumed during
charging and when the automotive starter battery is under
high load.
Sealed batteries are provided with sufficient fluid for their
whole service life at the time of manufacture.
If the "Charging condition" display should be significantly
above 100 % for batteries with an operating period of up
to approx. 2 years, this may point to excessive water con-
sumption as a result of external influences, e.g. improper
external charging from the mains supply or an excessively
high alternator voltage in the vehicle's electrical system.
In the case of older batteries, on the other hand, water
consumption is the result of the above described process
of natural ageing.
6.

Fault indication

Red LED (2) lights up - wait for cooling. It is probable that
several tests have been perfor¬med successively without
allowing for the cooling time (5 minutes.).
Red LED (6) indicates that the battery cannot be tested
because it is excessively exhausted. Perform intermediate
charging and then connect again for testing. Also refer to
Section 5.2.3 "Exhausted batteries".
7.

Technical data

T 12 200 E
Operating Voltage 8 V –15 V
(corresponds to
the voltage of
12 V automotive
Starter batteries)
Cold test current 130 A – 395 A *
Capacity Range 27 Ah – 88 Ah *
Load current 200 A
Total test time
Dimensions: WxHxD
Battery cable
Weight approx. 8 kg
Operating tem-
peratures
Tester and bat-
tery under test
* The levels 495 A and 600 A can be used for approximate measurement
of 110 Ah and 180 Ah batteries. Use the tester T12300 E for more exact
measurements.
T 12200E / T 12300E
T 12 300 E
6 V - 15 V
300 A – 700 A
90 Ah – 210 Ah
300 A
approx. 60 s
310 x 210 x 280 mm
approx. 1,3 m long.
approx. 7 kg
+5 °C bis +25 °C
Robert Bosch GmbH