B&K 1652, 1651A instruction manual Constant Current Indicator

__________________________________________________________________________CONTROLS AND INDICATORS

10.CURRENT Control. Adjusts current limit of “A” supply in constant voltage mode. Adjusts constant current value of “A” supply in constant current mode. Adjusts the constant current value of the “B” supply when either SERIES or PARALLEL TRACKING is selected. Current can be read from the mA Meter when the A Metering mode is selected.

11.“+” Terminal (Red). Positive polarity output terminal for the “A” supply. Also serves as the positive polarity terminal for 0-to-48 V, 1A parallel tracking and 0-to- 48 V, 0.5A series tracking operation.

12.“-” Terminal (Black). Negative polarity output terminal for the “A” supply. Also serves as the negative polarity terminal for 0-to-24 V, 1 A parallel tracking operation. In series tracking operation, this terminal is internally tied to the (+) positive terminal of the “B” supply.

13.CONSTANT CURRENT Indicator.

a.Red LED lights when “A” supply is in the Constant Current mode. The Power Supply regulates the output current at the value set by the “A” CURRENT control. In the Parallel Tracking mode, when this indicator is lit, both the “A” and “B” supplies are in the Constant Current mode.

b.When the LED is off, the “A” supply is in the Constant Voltage mode. The Power Supply regulates the output voltage at the value set by the “A” VOLTAGE controls. In either the Series or Parallel Tracking mode, when this indicator is off, both the A”A and “B” supplies are in the Constant Voltage mode.

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“B” SUPPLY CONTROLS AND INDICATORS

14.VOLTAGE Control. Adjusts the output voltage of the “B” supply when the INDEPENDENT mode is selected. Voltage can be read on the V Meter when the B Metering mode is selected. Control is disabled when TRACKING mode is selected.

15.CURRENT Control. Adjusts current limit of “B” supply in constant voltage mode. Adjusts constant current value of “B” supply in constant current mode. Current can be read from the mA Meter when the current mA Metering mode is selected. Control is disabled when TRACKING mode is selected.

16.“+” Terminal (Red). Positive polarity output terminal for the “B” supply. In series tracking operation, this terminal is connected to the negative terminal of the “A” supply.

17.“-” Terminal (Black). Negative polarity output terminal for the “B” supply. Also serves as the negative polarity terminal for 0-to-48 V series tracking operation.

18.CONSTANT CURRENT Indicator

a.Red LED lights when “B” supply is in the Constant Current mode. The Power Supply regulates the output current at the value set by the “B” CURRENT control when in the Independent mode.

b.When LED is off, the “B” supply is in the Constant Voltage mode.