MI-10KV
ELECTRONIC
MEGOHMMETER
• TECHNICAL SPECIFICATION
• OPERATING INSTRUCTIONS
WARNING
Hazardous voltages exist on the terminals during operation.
Although output current of the megohmmeter is limited,
external capacities are charged to very high potentials and there
is no protection against them. So, this equipment should only be
used by a suitably trained and competent person, strictly
applying corresponding security standards.
M I- 10KV
DESCRIPTION
The CIRCUTOR MI-10KV electronic megohmmeter is a versatile,
portable, user friendly, rugged instrument. It uses an efficient, well
experienced technology providing reliable, safe and accurate insulation
resistance measurements up to 2.000.000MΩ, with four test voltages:
1.000, 2.000, 5.000 and 10.000 V.
Due to its compact size and reduced weight, mechanical strength, selfcontained battery supply, this apparatus is particularly suitable for field
tests under severe environments. It is easily to be carried, very simple
to be operated and stands severe handling conditions including
frequent shocks, extreme temperatures, vibrations during transportation
through hard roads, long direct exposure to solar radiation, dust, sand
and other air-borne impurities, etc. Accuracy is not affected by all these
adverse conditions and it is still comparable with that of the best
laboratory instruments.
IMMUNITY AGAINST ELECTRIC AND MAGNETIC FIELDS
CIRCUTOR megohmmeters feature an effective filtering system that
improves immunity against electromagnetic disturbances and prevents
variations induced by industrial frequency fields.
OPERATOR’S SAFETY
Due to the high voltages involved, operator’s safety is a must.
CIRCUTOR megohmmeters were designed considering this
outstanding aspect:
• ENCLOSURE: Molded in high dielectric strength plastic. There are no
conductive parts accessible to the operator with the exception of the
output terminals. This terminals are located in a hidden and protected
position on the enclosure.
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M I- 10KV
• HIGH-VOLTAGE INDICATOR LIGHT: An indicator light (LED) is
warning the presence of high voltage at the output terminal during a
measurement and remains lit until the discharge process is completed.
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TECHNICAL SPECIFICATIONS
MEASURING INTERVALS, TEST VOLTAGES
M I- 10KV
Test
Voltage
(volts)
NKMMM MJ=OM =OM=J=QMM OMM=J=OMKMMM OKMMM=J=OMMKMMM =ñ=O
OKMMM MJ=QM =QM=J=UMM QMM=J=QMKMMM QKMMM=J=QMMKMMM ñ=R
RKMMM MJNMM NMM=J=OKMMM NKMMM=JNMMKMMM NMKMMM=JNKMMMKMMM ñ=NM
NMKMMM MJOMM OMM=J=QKMMM OKMMM=JOMMKMMM OMKMMM=J=OKMMMKMMM =u=OM
^ _ ` `=ñ=NM
MEASURING INTERVALS (MΩ)
Scale
Multiplier
Output.
Resistance
=jΩ
==O
K
jΩ
Q=
=jΩ
NM=
jΩ
OM==
TEST VOLTAGE STABILITY
1 % during full battery service life.
SHORT-CIRCUIT CURRENT
500 µ A.
CLASS
Class 2 (related scale size) @ 30 º C.
BATTERY TEST
Allows checking battery status under real consumption conditions
without interrupting the generation of test voltages.
GUARD TERMINAL
Allows the measurement of very high resistance values, avoiding the
effect of stray resistances.
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