Megger DET14C Bruksanvisning
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DET14C and DET24C
Digital Earth Clamp-on Tester
USER GUIDE
www.megger.com 2
G
SAFETY WARNINGS
These safety warnings are provided to ensure the safety of personnel and proper operation of
the instrument.
■Safety warnings and precautions must be read and understood before the
instrument is used. They must be observed during use.
■Do not leave the instrument connected to the system under test when not in
use.
■Do not touch circuit connections and exposed metalwork of the installation or
equipment under test.
■Do not use the instrument or connect it to any external system if it shows any
visible signs of damage, malfunction or if it has been stored in unfavourable
conditions.
■Always keep body parts behind the tactile barrier on the handles of the
instrument.
■Always inspect the instrument prior to use. Replace any defective parts
immediately or return the instrument to an authorised service centre for repair.
■Do not use the instrument or connect it to any external system if the casing is
open or any parts of the case are missing.
■Do not use rechargeable batteries in this instrument.
■Always use caution when clamping the instrument around energised electrical
conductors.
■Always use extreme caution when clamping around bare conductors: under
fault conditions, high voltages and currents may be present and may pose a
shock hazard.
■The instrument is not suitable for measuring AC currents in multi-core cables or
DC currents.
■The instrument should not be used if any part of it is damaged.
■This instrument is not intrinsically safe and must not be used in hazardous
atmospheres.
■If this equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
■Use extreme caution when using the instrument in proximity to bare
conductors. Avoid contact between the metal in the jaws and bare conductors.
A short circuit would create an arc-flash explosion hazard
OPERATION PRECAUTIONS
■It is important to keep the mating jaw surfaces clean as even small amounts of
contamination can cause measurement problems
■It is important to not damage the mating jaw surfaces. Take care when
clamping around electrodes as scratches on the mating surfaces will cause
measurement problems
■ It is important to avoid impacts to the clamp head as any damage will cause
measurement problems
■Do not use the instrument jaws as a lever or pry tool this can stress the
jaw pivot assembly affecting the jaw mating surface alignment causing
measurement problems.
■ Damage including scratches to the mating jaw surfaces is considered misuse
and will invalidate the warranty
NOTE: THE INSTRUMENT MUST ONLY BE USED BY SUITABLY TRAINED
AND COMPETENT PERSONS.
Users of this equipment and/or their employers are reminded that National Health and Safety
Legislation requires them to carry out valid risk assessments of all electrical work so as to
identify potential sources of electrical danger and risk of electrical injury such as inadvertent
short circuits.
The safety warnings provided in this document are indicative of safe practice and shall not be
considered exhaustive. Additionally, they are not intended to replace local safety procedures
where the instrument is being used.
www.megger.com 3
CONTENTS
G SAFETY WARNINGS 2
CONTENTS 3
GENERAL DESCRIPTION 3
APPLICATION 6
MODES OF OPERATION 8
GENERAL OPERATION 9
GENERAL SPECIFICATIONS 11
MEASUREMENT SPECIFICATIONS 12
ORDERING INFORMATION AND ACCESSORIES 13
PREVENTATIVE INSTRUMENT MAINTENANCE 13
REPAIR AND WARRANTY 14
END OF LIFE DISPOSAL 14
Symbols used on the instrument
G Caution: refer to accompanying notes
t Equipment protected throughout by Double Insulation
c Equipment complies with current EU directives
Equipment complies with current EU legislation
Equipment complies with current “C tick” requirements
Do not dispose of in the normal waste stream
V Equipment can be clamped around and removed from hazardous live
conductors (IEC 61010-2-032 Type A clamp)
Equipment not suitable for use where the magnetic field exceeds this limit
CAT IV 600 V Overvoltage category IV (equipment installed at or
near the origin of the electrical supply to a building)
600 V refers to the rms phase-to-earth voltage that this instrument
can withstand to the overvoltage category IV rating
G> 100 A/m
CAT IV
600 V
Produktspecifikationer
| Varumärke: | Megger |
| Kategori: | mätning |
| Modell: | DET14C |
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