Z001019/0_6_July 2008
Page ELECTRICAL SYSTEM - 69
ELECTRICAL SYSTEM
SERVICE MANUAL MARINE ENGINES
Function "ADJUSt"
When selecting the function "ADJUST", the rpm.
display may be adjusted between 30 and 100 % of
the measuring range.
Using a reference rpm meter (manual rpm meter),
the rpm indicator is compared.
Fine adjustment requires two persons, one to operate
the instrument and the other one to operate the
manual rpm meter on the axis of the engine's
crankshaft. Extreme caution is required! Do not wear
loose clothing!
When the function ADJUSt is selected, UP or dn (UP
or DOWN) appears in alternation on the display after
approx. 3 seconds.
If, for example, the key is pressed and held down
when UP is displayed, the pointer deflection changes
upwards (for "dn" analogously downwards).
If you release the key for 2 seconds and then press
it again, the pointer deflection changes downwards.
At the beginning, the pointer deflection changes very
slowly which permits a very precise fine adjustment.
With a short release of the key, the procedure is
repeated. With a longer pressing of the key, the
pointer deflection will change faster. Release the key
as soon as the fine adjustment corresponds to the
reference rpm. The display then changes to counting
of running-time. Fine adjustment is completed.
Fine Adjustment:
During normal operation of the indicator, a fine
adjustment is possible by using the key. The
adjustment range is +/- 20 % of the actual reading.
Press the key, with voltage supply on.
On the display appears A 0.0
By pressing and holding the key, the adjustment
factor increases in steps of 0,5%.
If you release the key for 2 seconds and then press
it again, the adjustment factor decreases in steps of
0,5%.
If the key is not pressed for more than 5 seconds, the
adjustment factor will be stored and the indicator
switches back to the normal running-time display.
07.13 ill.4
07.13 ill.5
ToC
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