Maquet Betastar 1131, Инструкции по техническому обслуживанию и ремонту

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Test Instruction , Trouble Shooting
Hydraulic OR - tables
9491.0354GB 02 10.06.2000 Seite/Page:
2.02
2. Measurements (tests), electric and electronic system
2.1 Transformer primary leads (1): The voltage corresponds to the setting at thevoltage
selectorand to the local power supply
2.2 Transformer secondary leads (2): 26.5 to 27.5 V AC at plug contacts 2/3 and 5/6.
2.3 Battery charger (3):
Check the charging voltage at the pairs of plugs. Detach all pairs of plugs (4) from the batteries; connect
the operating table to the power supply. Press a function control button briefly (approx. ½ sec). Wait for at
least one minute, and then measure the voltage at all pairs of plugs (4).
Voltage 13.6 V - 13.95 V DC with switch setting 21°C (S1)
Voltage 13.3 V - 13.7 V DC with switch setting 30°C (S1)
The voltage must not differ by more than 0.1 V between the single pairs of plugs (4).
Charging current from the charger
The charging current depends on the capacity of the batteries so that no information about the condition of
the battery charger can be obtained (exception: shorting NTC (A4/A7) -> charging current towards 0 A).
2.4 Batteries (5):
Conduct the test (6) using an automotive light bulb (12 V, approx. 45 W)
Good battery: Bright light for 1 to 2 minutes (good charge)
Poor battery: Light visibly darker after approx. 1 minute; voltage falls below 10V.
If a battery seems to be in poor condition, recharge and test it once again to verify the results.
All four or two batteries should always be replaced at the same time.