Velleman LABPS3005 Manual de usuario descargar pdf (Pagina 5)

LABPS3005

V. 02 – 25/08/2014 5 ©Velleman nv

1. Push the current dial until the coarse digit on the Ampere meter blinks.

2. Turn the dial to set the value you want.

3. Push the button again to set the fine adjustment.

4. When done, wait for 2 seconds until the display stops blinking.

Connecting a Load

1. Connect the load’s positive terminal to the red + terminal of the power supply.

2. Connect the load’s negative terminal to the black – terminal of the power supply.

3. You can connect the + or – terminal to the green earth terminal of the power supply to pin the

voltage to 0V (earth potential) at that terminal.

If you leave the earth terminal unconnected, the output floats with respect to the ground.

Locking the Panel keys

To prevent unwanted operation of the panel keys, you can lock the front panel.

1. Press and hold the Voltage adjustment dial until the Lock indicator lights up. The buttons are now

locked.

2. To unlock the panel, press and hold the button until the Lock indicator switches off.

Overcurrent Protection

1. To protect against overcurrent, set up the maximum current and then press and hold the Current

dial until the OCP indicator lights up.

2. Press Off/On to apply the output to the load.

If the output current becomes higher than the set value, the power supply cuts off the output and

the OCP indicator flashes.

3. Disconnect the load.

4. To recover, press the OCP key.

7. Troubleshooting

• Nothing happens when you press the panel buttons.

The buttons are locked. Press and hold the Voltage button for about 2 seconds.

• Power is on and output is switched on, but there is no output.

The load is not properly connected, or the current setup is 0.

• The output voltage rises slowly when the output is switched on.

The current setup is too small.

8. Cleaning and Maintenance

• Disconnect the device from the mains prior to maintenance activities.

• The power supply cables must not show any damage. Have a qualified technician maintain the

device.

• Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol or solvents.

• There are no user-serviceable parts, apart from the fuse. Contact your dealer for spare parts if

necessary.

• Store the device in a dry, well-ventilated, dust-free room.

Replacing the Fuse

Only replace the fuse by a fuse of the same type and rating.

1. Before replacing the fuse, unplug the mains lead.

2. Wedge the fuse holder out of its housing with a flat-head screwdriver.

3. Remove the damaged fuse from its holder and replace with the exact same type of fuse.

4. Insert the fuse holder back in its place and reconnect power.

9. Technical Specifications

input voltage

230 V 50 Hz

output voltage

0-30 V adjustable

output current

0-5 A adjustable

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Velleman LABPS3005 Manual de usuario Pagina 5

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