Safety Prescriptions - Velleman PS3010 Manual Del Usuario

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3) Using the device as a C.C. source
Use the power switch (9) to activate the device. Turn adjustments (5) and (6) to the extreme right and turn
adjustments (3) and (4) to the extreme left. Connect the load. Adjust (3) and (4) until the desired current is obtained.
The C.C. indicator is now lit while the C.V. indicator is off.
4) Use of the current-limiting adjustment in the C.V.-mode
Place both of the current adjustments, viz. (3) and (4), in the max. position. You can now set the current-limiting point
arbitrarily (max. ± 12A). Proceed as follows: activate the device, connect a variable load and adjust the load so that
the current matches the desired current-limiting point. Meanwhile, you should also manipulate current-adjustments
(3) and (4) until the C.C. LED lights. The value on the Amp display is identical to the current-limiting point.

4. Safety Prescriptions

- The PS3010/PS3020 enjoys optimal protection thanks to the short-circuit protection and the current-limiting point.
The power loss in case of short circuit is limited thanks to the protection circuit that controls the power loss of the
transistors in the power supply. This feature keeps the device from being damaged. The device will automatically
go into the current-limiting mode, which means that the current-limiting point (max. ± 12A) is installed.
Nevertheless, the short circuit should be repaired as soon as possible in order to prevent wear and unnecessary
power consumption.
The output will be cut off if the short-circuit occurs between the positive and the negative output terminal, which
prevents power loss. The device will resume normal operation when the problem has been solved.
- Store the device in a dry and well-ventilated environment and wipe it clean regularly with a damp cloth. Remove
the power plug if the device is to be stored for a prolonged period of time.
- Cut off the input voltage prior to cleaning the device.
- This device is a large power source. The device should be well-ventilated when working at max. power in order to
avoid overheating. Keep in mind that the surface of the heat sink is too hot to touch when the device is being used
at max. power.
- Improper operation of the device and an excessive ambient temperature may cause certain internal components
to fail. When this happens, the actual output voltage may exceed the rated output voltage. PROCEED WITH
CAUTION WHEN USING THIS DEVICE AND AVOID UNNECESSARY DAMAGE TO THE LOAD.
- The 3-pins ground terminal of the power cord should be grounded securely in order to ensure safe operation of
the device.
- The fan kicks in when the temperature of the heat sink reaches ± 75°C.
5. Accessories
1 user manual
1 power cable
PS3010/PS3020
4
VELLEMAN

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Ps3020

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