OPERATING INSTRUCTIONS

c. If an earth ground reference is not required, the

Read output voltage and

configuration of Fig. 3C may be used. The scheme in Fig. 3C should also be used where it is not known whether the chassis is common with either the positive or negative polarity.

d. If the chassis or common of the equipment being powered is separate from both the positive and negative polarity power inputs, use the connection shown in Fig. 3D.

6.Observe proper polar ity. If the circuit being powered is not equipped with reverse polarity protection, damage to the circuit can result from reverse polarity. Use color coded hook-up leads, for convenience in identifying polarity, red for (+) and black for (-).

7.Make sure that the hook- up leads offer sufficient current capability and low resistance between the power supply and the circuits being powered.

TYPICAL CONSTANT VOLTAGE OPERATION

1.

Before connecting the device to be powered to the power

 

supply, determine the maximum safe load current for the device

 

to be powered and set the current limit value (see “Setting

 

Current Limit” procedure in this section).

2.

Set Fine VOLTAGE control to center and Coarse VOLTAGE

 

control to minimum (fully counterclockwise).

3.

Turn off power supply and connect it to the device to be

 

powered (see “Hook -Up” procedure in this section).

Current meters

Load

Adjust to Desired voltage

CV Indicator on

Present current limiting

4. Turn on POWER switch. The C V indicator should light.

14

Figure 4. Typical Constant Voltage Operation.

Page 14
Image 14
B&K 0-3A, 0-30V instruction manual Typical Constant Voltage Operation, Set Fine Voltage control to center and Coarse Voltage

0-30V, 0-3A specifications

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