A func tional check of the emer gency bat tery and MCU can be car ried out by:
• dis con nect ing the Gen er a tor be fore start ing the en gine
• switch ing off the main switch whilst the en gine is run ning then
•
the en gine has to keep on run ning (20 min utes)
The emer gency bat tery now sup plies the re lay box with the elec tri cal power for en gine op er a tion.
The warn ing lamp “Emer gency bat tery dis charg ing” il lu mi nates.
5.3.3 Engine Instruments
A se lec tion of in stru ments are avail able. Sen sors for the oil tem per a ture, oil pres sure, wa ter tem -
per a ture and EGT are mounted on the en gine. The ap pro pri ate ca bles are to be routed. Con nec -
tion is to be in ac cor dance with the in struc tions of the equip ment man u fac turer. Cer tain
in stru ments will be con nected to the plug X7. Op tional in stru ments are:
Func tion Di am e ter Part No.
Oil temperature
Oil pressure combination instrument
57 mm 250.215.010.000
Oil temperature 53 mm 170.215.100.000
Oil-Pressure 53 mm 170.215.110.000
Water temperature, EGT, Water-loss warning
lamp combination instrument
57 mm 250.215.020.000
Status Indicator (engine-hour counter and
warning-LED´s: fuel-pressure, discharging
emergency-batt. charging emergency-batt.)
57 mm 250.215.025.000
RPM-indicator, (operating with the engine´s
inductive sensors)
80 mm 250.215.002.000
RPM-indicator, type “W“ from VDO 80 mm 250.215.002.000
5.3.3.1 Instrument calibration
Cal i bra tion of EGT and wa ter tem per a ture (250.215.020.000)
EGT in stru ment cal i bra tion “K“ (turn RFSD):
Temperature Calibration voltage
800° C 32,7 mV
700° C 29.1 mV
500° C 20,6 mV
Wa ter tem per a ture: Ad just L"0" at 30°C, LFSD at 90°C with sen sor in warm wa ter
Cal i bra tion of oil pres sure and oil tem per a ture (250.215.010.000)
Oil pres sure: Ad just R"0" for 0 bar with 10 ohm, RFSD for 6 bar with 115 ohm
Oil tem per a ture: Ad just L"0" at 50°C, LFSD at 90°C with sen sor in warm wa ter
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