Checking Regulator

NOTE: Voltage regulator test is made with Tester VAT-20D. If other equipment is used in lieu of this Tester, follow manufacturer's instructions carefully.

When using Tester VAT-20D, regulator temperature should be normalized by operating with a 10 ampere load for 15 minutes. Set controls as follows:

Set Polarity Switch to NEGATIVE position.
Set Tester Control Knob to DIRECT position.
Set Voltage Switch to 2 VOLT position.
Set Field Control to OPEN position.

Fig 1: Lower Contact Voltage Adjustment

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