Intended Use; Safety Instructions - Conrad GW-INSTEK PSW160-7.2 Bedienungsanleitung

GW-INSTEK Laboratory Power Supply
Item no. 556575 / PSW160-7.2
Item no. 556576 / PSW160-14.4
Item no. 556577 / PSW160-21.6

Intended use

The laboratory power supply serves as a potential-free DC voltage source to operate low-
voltage loads. It is connected via 4 mm safety sockets.
The output voltage and output amperage can be adjusted depending on the model. The DC
output is galvanically isolated and features protective separation from the mains voltage.
There are two adjustable voltage outputs and one fixed voltage output which can be used
independently. To double the power supply, the two adjustable outputs can be connected
internally in series or in parallel at the push of a button.
The power supply can be controlled by a computer through the USB interface. The device
allows you to save four sets of often used output parameters.
The device should only be connected to and operated on an earthed socket (Schuko socket)
of the public AC power supply.
Any use other than that described above could lead to damage to this product and involves the
risk of short circuits, fire, electric shock, etc.
The product must not be changed or modified in any way. Do not open the housing.
Operation in damp rooms, outdoor locations or under adverse ambient conditions is not
permitted.
Adverse ambient conditions include:
- Excessive dampness or humidity,
- dust or combustible gases, vapours or solvents,
- Thunderstorms or stormy conditions as strong electrostatic fields, etc.
Always observe the safety notes included in these operating instructions.
This quick guide explains safety measures to make working with the device as safe as possible.
The individual functions of the device are described in detail in the enclosed operating manual.
For safety and approval purposes (CE), you must not rebuild and/or modify this product. If you
use the product for purposes other than those described above, the product may be damaged.
In addition, improper use can cause hazards such as short circuiting, fire, electric shock etc.
Read the instructions carefully and keep them. Make this product available to third parties only
together with its operating instructions.
This product complies with the statutory national and European requirements. All company
names and product names are trademarks of their respective owners. All rights reserved.

Safety instructions

Read the operating instructions carefully and especially observe the safety
information. If you do not follow the safety instructions and information
on proper handling in this manual, we assume no liability for any resulting
personal injury or damage to property. Such cases will invalidate the warranty/
guarantee.
a) Persons / Product
• The device is not a toy. Keep it out of the reach of children and pets.
• This is a protection class 1 product. Only use a proper, earthed mains socket of the
public power supply as a voltage source.
• Devices operated using the mains voltage must be kept out of the reach of children.
Particular care must therefore be exercised if children are around.
• When multiple outputs are combined, perilous voltages can be generated. Only use
contact-protected safety measuring lines for voltages of >42 V/AC or >60 V/DC.
• Take particular care when dealing with voltages exceeding 25V AC or 35V DC!
Even at these voltages it is possible to get a fatal electric shock if you touch
electrical conductors.
• The power supply will heat up during operation. Ensure appropriate ventilation. Do
not cover the ventilation slots of the device!
• The mains outlet must be located near to the device and be easily accessible
• Never pull the mains plug from the socket by pulling at the cable. Always pull it from
the mains socket using the intended grips.
• Unplug the mains plug from the mains socket if you do not use the device for an
extended period of time.
• Disconnect the mains plug from the mains socket in thunderstorms for reasons
of safety.
• Make sure that the mains cable is not squeezed, bent, damaged by sharp edges
or put under mechanical stress. Avoid excessive thermal stress on the mains cable
from extreme heat or cold. Do not modify the mains cable. Otherwise the mains
cable may be damaged. A damaged mains cable can cause a deadly electric shock.
• Do not touch the mains cable if it is damaged. First, power down the respective
mains socket (e.g. via the respective circuit breaker) and then carefully pull the
mains plug from the mains socket. Never use the product if the mains cable is
damaged.
Version 06/14
• A damaged mains cable may only be replaced by the manufacturer, a workshop
commissioned by the manufacturer or a similarly qualified person, so as to prevent
any danger.
• Never plug in or unplug the mains plug when your hands are wet.
• Power supply units and connected loads must not be operated unattended.
• Only use fuses of the type and rated current specified. It is absolutely forbidden to
use repaired fuses.
• Avoid the use of uninsulated metallic cables. There is the danger of short circuit
or fire.
• Do not use the device shortly before or after a thunderstorm (lightning! / high-
energy overvoltages!). Make sure that your hands, shoes, clothing, the floor, the
power supply, the measurement lines, switches and switching parts, etc. are dry.
• Do not use the product within rooms or in bad ambient conditions where flammable
gases, vapours or dust may be present or are present.
• Avoid operation in the immediate vicinity of:
- strong magnetic or electromagnetic fields
- transmitting aerials or HF generators.
- This can affect the control.
• Only use measuring lines or equipment aligned with the specifications of this
device. Overvoltages pose the danger of fire.
• If you have reason to assume that safe operation is no longer possible, disconnect
the device immediately and secure it against inadvertent operation. It can be
assumed that safe operation is no longer possible if:
- the device shows visible damage,
- it does not function any longer and
- after it was stored under unfavourable conditions over a period of time or
- after it was exposed to heavy stress during transport.
• Never switch the device on immediately after taking it from a cold to a warm room.
The condensation generated could cause serious damage to the device. Allow the
device to reach room temperature before switching it on.
• Never disassemble the product! There is a risk of a fatal electric shock! Capacitors
inside the device may still be charged, even if the device has been disconnected
from all voltage sources.
• Do not leave packaging material lying around unattended. It can become a
dangerous toy for children.
• The product is only suited for dry indoor use (not in bathrooms or similar damp
interiors). The device must not get damp or wet. There is a risk of a fatal electric
shock!
• In industrial facilities, the safety regulations laid down by the professional trade
association for electrical equipment and facilities must be adhered to.
• In schools and training centres as well as at hobby and DIY workshops, the use of
power supplies must be supervised by trained personnel in a responsible manner.
• The power supplies are not designed for use on human beings or animals.
• Handle the product with care. It can be damaged through impact, blows, or by
being dropped even from a low height.
• Also observe the provided detailed operating instructions as well as the safety
notes in the operating instructions of the connected devices.
b) Miscellaneous
• Consult an expert when in doubt about operation, safety or connection of the
device.
• Maintenance, modifications and repairs are to be performed exclusively by an
expert or at a qualified shop.
• If you have questions which remain unanswered by these operating instructions,
contact our technical support service or other technical personnel.