Velleman HQ-Power PSS4005, Руководство пользователя, Страница: 4 / 23

PSS2010 / PSS4005 VELLEMAN
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Rear
8. AC power input
9. RS-232 interface (with optocoupler) to connect to a PC
10. Ventilation slots
4. Safety Instructions
When this icon appears in the manual, there is a possible exposure to high voltage.
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Keep this device away from rain and moisture, dust and combustible gases, fumes or solvents.
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Select a location where the device is protected against extreme temperatures, away from heating devices.
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Damage caused by user modifications or disregard of certain guidelines in this manual is not covered by the
warranty and the dealer will not accept responsibility for any ensuing injuries, defects or problems.
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Do not use the device in circumstances that can create strong electrostatic fields such as thunderstorms etc.
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Do not switch the device on immediately after it has been exposed to changes in temperature. Protect the device
against damage by leaving it switched off until it has reached room temperature.
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Never cover or obstruct the cooling slots at the rear and the sides of the device ; this may cause overheating.
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Never put the device on its front panel, as this may cause the front panel to break.
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The device left the factory in a technically safe condition. To maintain this condition and to ensure safe operation,
it is essential for the user to observe the safety instructions and warning notes contained in this manual.
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This device falls under protection class I. It is therefore essential that the device be connected to a 230Vac
earthed mains power supply.
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Keep the device away from children and unauthorised users.
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Unplug the mains lead before opening the housing. Open the housing with an appropriate screwdriver. Open the
housing only to replace a defective fuse. Replace a defective fuse only with a fuse of the same type and rating.
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It is not recommended to wear conductive metal jewellery (rings, bracelets etc.) while operating power supplies.
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Do not leave power supplies and loads switched on without supervision.
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Be careful with voltages over 35Vdc as they can cause life-threatening electroshocks.
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Make sure the power supply outputs, contact points and power leads are undamaged and sufficiently insulated.
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Do not continue to use the device and have it repaired when it looks damaged or does not work normally.
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Disconnect the device from the mains to clean it or when it is not in use. Handle the power cord by the plug only.
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Do not shake the device. Avoid brute force when installing or operating the device.
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Only use the device for its intended purpose. All other uses may lead to short circuits, burns, electroshocks,
crash, etc. Using the device in an unauthorised way will void the warranty.
5. Functionality
The device can be used for different applications thanks to its adjustable voltage and current (and thus power)
supply: the U, I and P values are shown on the LCD and are adjustable with the adjustment wheel.
A temperature circuit, equipped with a fan, protects the power supply from thermal overload.
An electronic current limiter protects the power supply from overload and short-circuits at the output: during an
overload or short-circuit, the output is reduced automatically until the overload or short-circuit is removed.
The device is also equipped with a PFC (Power Factor Compensation) function, which enhances the power supply's
efficiency. For example: a regular power supply uses only 70% of the mains power ; with PFC it can use up to 95%.
This means the energy waste drops from 30% to 5%.
6. Operation
a. Powering On the Device
1. Connect the AC power cable to the AC connector (fig. p.1 #8) and plug it into an earthed AC power socket
(230Vac/50Hz).
Make sure the earth lead is not interrupted at the power socket, in the cable or inside the power supply.