Delivery content
• Multimeter with permanently attached measuring leads
• 2 LR44 batteries (or identical batteries)
• Operating instructions
Latest operating instructions
Download the latest operating instructions via the link www.conrad.com/downloads or scan the
QR code shown. Follow the instructions on the website.
Explanation of symbols
The lightning symbol inside a triangle is used when there is a potential risk of
personal injury, such as electric shock.
An exclamation mark in a triangle indicates important instructions in this operating
manual that absolutely have to be observed.
The arrow symbol indicates specific tips and advice on operation.
This product has been CE-tested and meets the necessary European guidelines.
Class 2 insulation (double or reinforced insulation)
Over-voltage category III for measuring building wiring installation (e.g. outlets or
sub-distributions). This category also covers all smaller categories (e.g. CAT II for
measuring electronic devices).
Ground potential
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) General
• The device is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. This may become
dangerous playing material for children.
• Protect the product from extreme temperatures, direct sunlight, strong jolts, high
humidity, moisture, flammable gases, vapours and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, take it out of operation and
protect it from any accidental use. Safe operation can no longer be guaranteed
if the product:
- is visibly damaged,
- is no longer working properly,
- has been stored for extended periods in poor ambient conditions or
- has been subjected to any serious transport-related stresses.
• Please handle the product carefully. Jolts, impacts or a fall even from a low height
can damage the product.
• In commercial and industrial facilities the regulations for the prevention of accidents
as laid down by the professional trade association for electrical equipment and
devices need to be observed.
• In schools, training centres, computer and self-help workshops, handling of
measuring instruments must be supervised by trained personnel in a responsible
manner.
• Before measuring voltages, always make sure that the measuring instrument is
not set to a measuring range for currents. The voltage between the measuring
instrument and earth must never exceed 250 V DC/AC in CAT III.
• The test prods have to be removed from the measured object every time the
measuring range is changed.
• Take particular care when dealing with voltages exceeding 25 V AC or 35 V DC!
Even at these voltages it is possible to get a fatal electric shock if you touch
electric conductors.
• Check the measuring device and its measuring lines for damage before each
measurement. Never carry out any measurements if the protecting insulation is
defect (torn, ripped off etc.)
• To avoid an electric shock, make sure not to touch the connections/measuring
points to be measured neither directly nor indirectly during measurement. When
during measuring, do not grip beyond the grip range markings present on the test
prods. Do not use the multimeter immediately before, during or after thunder and
lightning (thunderstrike / high-energy over-voltages!). Please make sure that your
hands, your shoes, your clothing, the floor, switches and switching components
are dry.
Operating instructions
Digital Multimeter BT-11
Item no. 1599499
Intended use
• Measuring and displaying electric parameters in the range of excess voltage category III (up
to max. 250 V against ground potential, pursuant to EN 61010-1) or lower
• Measuring direct and alternating voltage up to a maximum of 250 V
• Measurement of direct current up to max. 200 mA
• Also designed to measure resistance values of up to 2000 kOhm
• Diode test
• Battery test for 9 and 1.5 V batteries under load condition
• Rectangular signal generator
Operation is only permissible using the stated battery type (2 x LR44 or identical).
The measuring instrument must not be operated when it is open, i.e. with an open battery or
fuse compartment. Measuring in damp rooms or under unfavourable ambient conditions is not
admissible.
Unfavourable ambient conditions are:
• Wetness or high air humidity
•
Dust and flammable gases, vapours or solvent,
•
Thunderstorms or similar conditions such as strong electrostatic fields etc!
The multimeter (referred to as DMM in the following) indicates measured values on the digital
display. The measuring value display of the DMM comprises 2000 counts (count = smallest
display value).
The individual measuring ranges are selected via a rotary switch.
The measuring circuit is protected against overload with a fine-wire fuse. The fuse is located
in the red test prod.
For safety reasons, the measuring cables are permanently connected to the measuring device
and cannot be changed.
The measuring device can be used for do-it-yourself or for professional applications.
For safety and approval purposes, 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.
Explanations of symbols and units on the multimeter
V
Alternating voltage
V
Direct voltage
V
Volt (unit of electric potential)
mV
Millivolt (exp.-3)
mA
Milliampere (unit of electric current, exp.-3)
µA
Microampere (exp.-6)
Ω
Ohm (unit of electric resistance)
kΩ
Kilo Ohm (exp.3)
Diode test
Battery test
Rectangular signal generator
CAT III
Over-voltage category 3