Version 10/13
BT-153 Lab power supply
Item no.
39 36 47
1. Intended use
This lab power supply functions as a potential-free source of power for the operation of low-voltage units. It has been developed
for universal use in the research, development, manufacturing, service and training fields. The units to be operated are connected
via the sockets on the front of the device. All operating controls and indicators have been neatly arranged to simplify use. The
corresponding power and voltage values are easily visible on the high-contrast LED display. The control dial on the front of the
device is used to set current and voltages values. The current consumption of a connected unit may not exceed the maximum
amperage as listed under technical data.
The lab power supply has a protection against overload and voltage reversal. The device conforms with protection class I. It has
been approved for connection only to a grounded power outlet and alternating voltage of 230 V/AC, 50 Hz.
Operation under adverse ambient conditions is not permitted. Adverse ambient conditions are defined as such:
•
wetness or high humidity
• dust and flammable gases, vapors or solvents
• thunder storms and/or similar conditions (avoid strong electrostatic fields in general)
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.
2. Delivery content
•
Lab power supply
•
Power cable
•
Operating instructions
3. Explanations of symbols
The triangle containing a lightning symbol warns against danger of electric shock or impairment of the electrical
safety of the device.
The symbol with an exclamation mark points to important instructions in this operating instructions that must
be observed.
The “arrow” symbol alerts the user to the presence of important tips and notes on using the device.
The product is intended for use only in indoor dry spaces, it may not become moist or wet.
This device is CE compliant and fulfills all applicable European guidelines.
Ground potential
Protective ground wire connection; do not loosen this screw.
4. 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.
Persons / Product
• The lab power supply conforms with protection class I and is suited for connection only to a grounded power outlet
(230 V/AC, 50 Hz). Make sure that the ground connection is not defective/interrupted as there is a risk of fatal injury in case
of malfunction.
• This product is not a toy, keep it out of the reach of children.
Children cannot recognize the dangers that may arise when handling electrical devices. Children may alter settings or insert
objects into the air vents on the lab power supply. This poses a risk of fatal injury due to electric shock! Always use the product
out of the reach of children.
• Do not leave packaging material lying around carelessly. These may become dangerous playing material for children.
• The lab power supply may be set up and used only in dry, closed indoor spaces. It may not become moist or wet. The power
supply may not be exposed to extreme temperatures, direct sunlight, vibrations or mechanical stress.
• Use the lab power supply only in mild climates, never in the tropics. Review the section on “Technical data” to see the
permitted ambient conditions for operation.
• Choose a location for the lab power supply that is stable, even, clean and sufficient in size.
• Do not have any open flames in the direct vicinity of the lab power supply and do not place any containers with liquids on
or near the device.
• When you carry the lab power supply from a cold to a warm room, condensation may form. This poses the risk of fatal injury
due to electric shock. Thus, always allow the lab power supply to reach room temperature before connecting it to the power
outlet and turning it on and/or using it.
• Before and during use, make sure that your hands, shoes, clothing, the floor and the device itself are dry.
• Make sure that the insulation of the lab power supply, of the safety plugs, of all connected cables and of the power cable is
not damaged or destroyed. Avoid using unprotected wires.
• 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.
•
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.
• Never pour any liquids over electrical devices or put objects filled with liquid right next to the device. If liquid or an object enters
the interior of the device nevertheless, first power down the respective socket (e.g. switch off circuit breaker) and then pull
the mains plug from the mains socket. Do not operate the product anymore afterwards, but take it to a specialist workshop.
•
When using the device, do not carry any conductive metal objects or jewelry such as chains, bracelets, rings, etc.
•
Never leave the lab power supply unattended during use.
•
Shield all connected units from malfunction and from excess voltage.
•
Connecting several devices in in series may cause dangerous voltage which can pose a risk of fatal injury. Heed the low
voltage guideline.
•
During use, the lab power supply produces heat. Never insert any objects into the product’s air vents and do not obstruct
ventilation in any way. The power supply is cooled primarily via convection. Thus, never cover the lab power supply.
•
In case safe operation is no longer guaranteed, cease use of the device immediately and shield it from unintended use. Safe
operation is no longer guaranteed when:
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the power supply is visibly damaged,
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the power supply no longer functions,
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the power supply was stored for an extended period under adverse conditions or
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if the product was damaged during transport.
•
Do not use the lab power supply as a charger.
• The lab power supply is not approved for use on persons or animals.
•
Opening any covers on the product or removing parts – unless this is possible by hand – may expose voltage-carrying
components. This poses the risk of fatal injury due to electric shock!
•
Disconnect the device from the power outlet before opening it.
•
Capacitors located in the lab power supply may still be charged even when the device is unplugged.
• Only use fuses of the specified type and rated current. The use of mended fuses is not permitted as this poses a fire hazard!
•
For installations in industrial facilities, follow the accident prevention regulations for electrical systems and equipment of the
government safety organization or the corresponding authority for your country.
•
In schools and educational institutions, hobby and do-it-yourself workshops, the use of the lab power supply must be
supervised by trained staff.
•
Please handle the product carefully. Jolts, impacts or a fall even from a low height can damage the product.
•
Also observe the safety and operating instructions of any other devices which are connected to the product.
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.
5. Operating elements
1
LED display “A” for output current
2
LED display “V” for output voltage
3
Control dial “COARSE” for rough voltage adjustment
4
Control dial “FINE” for exact voltage adjustment
5 Plus socket for direct current output
6 Socket for ground (yellow-green)
7
Minus socket for direct current output
8 On/off switch
9
Control dial “CURRENT” for output current limit
10
LED display “CV” for output voltage regulation
11
LED display “CC” for output current regulation
12 Air vents
13 Fuse holder
14
Mains socket
6. Startup and operation
a) Connection and startup procedure
• The device can be grounded using the screw marked as ground potential located on the bottom of the lab power supply.
•
Place the lab power supply on a stable, even surface.
• The on/off switch (8) should be turned to “OFF”.
•
Connect the mains plug of the included power cable to the mains socket (14) on the back of the device and the power plug to
a power outlet with 230 V/AC, 50 Hz alternating current.
• Turn on the lab power supply by pushing the on/off switch (8) to “ON”.
•
Both LED displays (1 and 2) light up and show the currently set current and voltage values.
• Depending on the setting of the control dial “CURRENT” (9) for output current limit, either the LED display “CV” (10) for output
voltage regulation or the LED display “CC” (11) for output current regulation will light up.
• The lab power supply is now ready to set the output voltage and current limit.
