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Operating Instructions
MS-20SF Fuse Finder
Item No.: 2436323
Intended use
The product is only allowed to be used under the conditions and for the purpose which it was designed for.
In this respect it is particularly necessary to observe the safety guidelines, technical data, the surrounding
conditions and use in dry surroundings.
The operating safety is not guaranteed in the event of modifications or conversions.
By using the device fuses can be allocated to the respective socket rings.
The allocation of the circuit and fuse by the device is merely intended as a reference. In the event of doubt
in the electrical system, for example about whether the detected fuse has actually interrupted the correct
electrical circuit, a qualified electrician has to be consulted.
In any event, after switching off the fuse it must be ensured that the affected electrical circuit or socket ring
is disconnected by performing additional tests.
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 pro-
duct names are trademarks of their respective owners. All rights reserved.
Delivery content
•
Transmitter
Receiver
•
9 V block battery
•
Up-to-date operating instructions
Download the latest operating instructions at www.conrad.com/downloads or scan the
QR code shown. Follow the instructions on the website.
Explanation of symbols
Protection class II insulation (double or reinforced insulation)
Measurement category I for measurements on signal and control voltages without powerful
CAT I
discharges.
Measurement category II for measurements on electric devices connected to the mains
CAT II
supply by a power plug. This category also covers all smaller categories (e.g. CAT I for
measuring signal and control voltages).
Overvoltage category III for measuring in building installation (e.g. outlets or subdistribution).
CAT III
This category also covers all lower categories (e.g. CAT II for measuring electronic devices).
The symbol with the lightning in the triangle is used if there is a risk to your health, e.g. due
to an electric shock.
The symbol with the exclamation mark in the triangle is used to indicate important informati-
on in these operating instructions. Always read this information carefully.
The arrow symbol indicates special information and advice on operation.
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 product is only allowed to be used in dry indoor conditions.
• It is intended for indoor use only. Do not use it outdoors. Contact with moisture, e.g. in
bathrooms, must be avoided under all circumstances.
• The device is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. These 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.
• Also observe the safety and operating instructions of any other devices which are connected
•
Pouch
Operating instructions
•
to the product.
• The product is only allowed to be connected and operated at a safety socket.
• 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 commis-
sioned 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.
• This product has been constructed in accordance with the safety provisions for electronic
measuring and test devices and left the factory in a proper safety condition. To maintain
this condition, the user has to observe the safety guidelines in these operating instructions.
• For all work the respectively valid accident prevention regulations of the professional associ-
ations for electrical systems and equipment have to be observed.
• To prevent the risk of electric shock, it is imperative to observe all prevailing safety and
DIN VDE regulations concerning inadmissible high contact voltage, if you are working with
voltages over 120 V (60 V) DC or 50 V (25 V) AC eff.
• Measurements made dangerously close to electrical systems are only to be performed under
the instructions of a responsible electrician and not alone.
• This product is only allowed to be used at the nominal voltages stated in the technical data.
• If the product is exposed to an extremely high electromagnetic field, its function may be
affected.
b) (Rechargeable) Batteries
• Correct polarity must be observed while inserting the (rechargeable) battery.
• The (rechargeable) battery should be removed from the device if it is not used for a long pe-
riod of time to avoid damage through leaking. Leaking or damaged (rechargeable) batteries
might cause acid burns when in contact with skin, therefore use suitable protective gloves to
handle corrupted (rechargeable) batteries.
• (Rechargeable) batteries must be kept out of reach of children. Do not leave (rechargeable)
batteries lying around, as there is risk, that children or pets swallow them.
• (Rechargeable) batteries must not be dismantled, short-circuited or thrown into fire. Never
recharge non-rechargeable batteries. There is a risk of explosion!
c) 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 are not sure about the correct connection or use, or if questions arise which are not covered by these
operating instructions, please do not hesitate to contact our technical support or another qualified specialist.
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