Safety Instructions; Intended Use - VOLTCRAFT VC185 TRMS Sicherheitshinweise

Safety Instructions

VC185 TRMS Digital Multimeter
Item no.: 1626067
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.
Read the operating instructions before using the product.

Intended use

Measuring and displaying electric parameters in the range of measurement category CAT
III (up to max. 600 V against ground potential, pursuant to EN 61010-2-033:2012 and EN
61326-1:2013; EN 61326-2-2:2013, EN 61010-2-030:2010. The meter must not be used in the
measuring category CAT IV.
• Measuring direct and alternating voltage up to a maximum of 600 V
• Measuring direct and alternating currents (in mA, µA, A) of up to a maximum of 10 A
• Measuring of resistance of up to 60 MΩ
• Acoustic continuity test
• Measuring capacitance
• Testing diodes
• Temperature measurement with K-type thermo sensor
• Measuring frequency in Hz and duty ratio in %
• Non-contact 230 V/AC voltage test
The measurement functions are selected using the rotary control. The measuring range is
selected automatically for all measuring functions except temperature and non-contact voltage
measuring. Manual setting is possible at any time except the latter two.
The digital multimeter shows actual effective measured values (True RMS) in the direct and
alternating voltage and current measuring ranges.
Polarity is automatically indicated with the prefix (-) if the measured value is negative.
The measuring inputs are secured against overload. The voltage in the measuring circuit may
not exceed 600 V. The measuring ranges are equipped with ceramic high-performance fuses.
The device may only be operated with a 9 V block battery.
The digital multimeter must not be operated when it is open, i.e. with an open battery
compartment or when the battery compartment cover is missing. 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.
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.
Observe all safety instructions and information within the operating manual.
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 the
manual, we assume no liability for any resulting personal injury or damage to property.
Such cases will invalidate the warranty/guarantee.
This device left the manufacturer's factory in safe and perfect condition.
To maintain this condition and to ensure safe operation, the user must observe the safety
information and warning notes in the operating instructions.
Observe the following symbols:
An exclamation mark in a triangle indicates important instructions in the operating
manual which absolutely have to be observed.
The triangle containing a lightning symbol warns of danger of an electric shock or of
the impairment of the electrical safety of the device.
The symbol can be found when you are to be given tips and information on operation.
This product has been CE-tested and meets the necessary European guidelines.
Protection class II (double or reinforced insulation, protective insulation)
Measurement category I for measurements at electrical and electronic devices that
CAT I are not directly supplied with mains voltage (e.g. battery-powered devices, protective
low voltages, signal and control voltages, etc.)
Measurement category II for measurements at electrical and electronic devices
CAT II connected to the mains supply directly with a mains plug. This category also covers
all lower categories (e.g. CAT I for measuring signal and control voltages).
Measurement category III for measuring in building installation (e.g. outlets or sub-
distribution). This category also covers all lower categories (e.g. CAT II for measuring
CAT III
electronic devices). Measuring operation in CAT III is only permitted with measuring
prods with a maximum free contact length of 4 mm or with cover caps above the
measuring prods.
Ground potential
a) General information
• The meter and accessories are not toys. Keep them out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. This may become dangerous
playing material for children.
• 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.
• Observe the safety and operating instructions of any other devices which are connected to
the product.
• 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 the operating instructions, contact our
technical support service or other technical personnel.
b) Persons and product
• Do not use the device if the rear cover is not closed. This may pose a hazard of electrical
shock.
• Do not use the device if the device or test leads appear damaged or if you suspect that the
device is not operating properly. Pay particular attention to the insulation. Never carry out any
measurements if the protecting insulation is defective (torn, ripped off etc.). Replace the test
lead if the insulation layer is damaged.
• Never operate the product in direct proximity of:
- strong magnetic or electromagnetic fields
- Transmitter aerials or HF generators.
• This could affect the measurement.
• The rotary switch should be switched to proper position for measuring.
• Only use measuring leads that conform to the specifications for the multimeter when
measuring.
• Do not change the internal circuit of the device in order to avoid the damage to the device
and users.
• The measuring prods have to be removed from the object measured every time the
measuring range is changed.
• The voltage between the connection points of the meter and the earth potential must not
exceed 600 V (DC/AC) in CAT III.
• Be especially careful when dealing with voltages higher than 25 V alternating (AC) or 35 V
direct voltage (DC)! Even at these voltages it is possible to receive a potentially fatal electric
shock if you touch electrical conductors.
• To avoid electric shock, make sure not to touch the connections/measuring points to be
measured directly or indirectly during measurement.
• Do not use the multimeter just before, during or just after a thunderstorm (lightning! / high-
energy overvoltage!). Make sure that your hands, shoes, clothing, the floor, circuits and
circuit components are dry.
• Never use the digital multimeter immediately after it has been brought from a cold room into
a warm one. The condensation generated could destroy the product. Allow the product to
reach room temperature before connecting it to the power supply and putting it to use. This
may take several hours.
• In commercial institutions, the accident prevention regulations of the Employer's Liability
Insurance Association for Electrical Systems and Operating Materials are to be observed.
• In schools, training centres, computer and self-help workshops, handling of meters must be
super-vised by trained personnel in a responsible manner.
• Ensure before every measurement that the meter is not set to another measuring range. Also
observe that the HOLD button has not been pushed at the beginning of the measurement
(display with the HOLD button pushed: "H"). If the HOLD function is activated before
commencement of the measurement, no measured value is displayed!