___________________________________________________________________________OPERATING INSTRUCTIONS
Hook-up
3.Set the INDEPENDENT/TRACKING mode switch to the right position so that the power supply is in the INDEPendent operating mode.
4.Set the A/B Metering selection switch to the A (up) position to monitor the “A” supply.
5.Turn off the power supply and the equipment to be powered during
6.Connect the positive polarity of the device being powered to the red (+) terminal of the power supply.
7.Connect the negative polarity of the device being powered to the black
8.Fig. 3 illustrates the grounding possibilities when used in the INDEPendent mode.
a.If the negative polarity of the equipment or circuit being powered is also the chassis or common, it may be grounded to earth by strapping the black (-) terminal to the green (GND) terminal as shown in Fig. 3A.
b.Similarly, the positive polarity can be grounded by strapping the red (+) terminal to the green (GND) terminal as shown in Fig. 3B.
c.If an earth ground reference is not required, the 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 |
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shown in Fig. 3D. | 13 |
1.Observe proper polarity. 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 (-).
2.Make sure that the hook-up leads offer sufficient current capability and low resistance between the power supply and the circuits being powered. The hook-up leads supplied with the power supply are rated for 4 amp.
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 the A/B Meter selection switch to the A (up) position to monitor the “A” supply.
3.Set VOLTAGE control to minimum (fully counterclockwise).
4.Turn off power supply and connect it to the device to be powered (see
5.Turn on POWER switch. The CONSTANT CURRENT indicator should not light.
6.Increase the VOLTAGE setting until the Volt meter reads the desired value.
7.The load current is read directly on the mA meter.
