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DATACENTER ERROR!!! Внимание! Авария в датацентре!!


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Diagnosis and repair



To perform this test, use an Alternator, Regulator, Battery and Starter Tester (ARBST) in conjunction with the 88 Digital Multimeter.

1.Turn the tester to the OFF position.
2.Turn the multimeter selector switch to the DV volt position.
3.Connect the tester and multimeter positive test leads to the positive battery post and both negative test leads to the negative battery post. The multimeter clips must contact the battery posts and not the tester clips. Unless this is done, the actual battery terminal voltage will not be indicated.
4.Turn the load control knob in a clockwise direction until the ammeter reads approximately half of the cold cranking amps of the battery.
5.With the ammeter reading the required load for 15 seconds, note the multimeter reading.
^If the multimeter reading is 9.6 volts at 21°C (70°F) or more, the battery has a good output capacity and will readily accept a charge, if required.
^If the voltage reading is below 9.6 volts at 21°C (70°F), and the battery is fully charged, the battery is damaged and must be replaced. If unsure about the batterys state of charge, charge the battery.

CAUTION: Avoid leaving the high discharge load on the battery for periods longer than 15 seconds, to prevent damage to the tester.

6.After the battery has been charged, repeat the Battery-Capacity Test.
^If the capacity test battery voltage is still less than 9.6 volts at 21°C (70°F), replace the battery.
^If the voltage is 9.6 volts at 21°C (70°F), the battery is satisfactory for service.
^If the battery is found to be discharged only, check for a loose drive belt, loose electrical connection, charging system performance, and perform Battery-Drain Testing.





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