MULTI MEASURING INSTRUMENTS CO.,LTD. MCL-4000F Instruction Manual

3CT METHOD LEAKAGE CURRENT METER

MCL-4000F

INSTRUCTION MANUAL

Thank you very much for selecting our model MCL-4000F

Leakage Current Meter.

Before use the instrument, read this instruction manual

completely and familiarize yourself thoroughly with all

functions.

Keep this instruction manual carefully to take out

whenever you need.

MULTI MEASURING INSTRUMENTS CO.,LTD.

Akihabara Murai Bldg. 7F 1-26, Kanda Sakuma-cho,

Chiyoda-ku, Tokyo, Japan, 101-0025

TEL : [phone] FAX : [phone]

Home Page : http://www.mutimic.com/

E-mail : [e-mail]

SAFETY SUMMARY observe by all means

● To use this instrument safely, read this "SAFETY SUMMARY" carefully and
apply the instrument correctly.

● The CAUTIONs and WARNINGs which appear on the following pages are stated
to prevent the operator & other people from the dangers and their properties from
the damages beforehand.

△ WARNING : This symbol indicates the contents "Possibilities of the death or
the serious wound can be supposed" caused from mis-operations.
△ CAUTION : This symbol indicates the contents "Possibilities of the injury or

only the material damage can be supposed" caused from mis-
operations.

○ OPERATION ENVIRONMENT

△ CAUTION

● Do not use or storage this instrument under the condition of direct rays of the

sun high temperature & humidity and or condensation, as it may cause the

deformation and or the isolation defect of the instrument.

● Do not use this instrument in the environment influenced by acids, alkalis,
organic solutions. corrosive gas, etc.

● Do not use or storage this instrument where the mechanical vibration can be
directly transmitted, as it may cause defect of the instrument.

● Do not use this instrument nearby the appliances which generate strong
magnetic field and or electric field, as it may cause mis-movement of the
instrument.

● This instrument does not have the water / dust-proof structure. Do not use this
instrument in the environment with a lot of dust and drops of water, as it may
cause defect of the instrument.

○ OPERATION CONDITION & CONNECTION

△ WARN IN G

POSSIBLE ELECTRICAL SHOC

K

● This instrument is for the use of low voltage circuit.
Do not make measurements of power lines carrying more than AC 500V.
Before use, check and confirm the voltage of circuit to be measured.

● Apply only the coated cables and do not clamp bare cables.

POSSIBLE ELECTRICAL SHOCK OR ACCIDENT

● Do not handle the instrument in the rain, at humid place, with a drop of water
and or with wet hands.

● Do not use the instrument if the CT or CT case are damaged and if something is
wrong with the CT cables.

● If excessive current is applied to the CT, the instrument will be heated and

damaged. Use the CT according to the rating current.

1. GENERAL

3CT/4CT Method Leakage Current Meter (Model MCL-4000F) measures the leakage
current and or the line current in low voltage circuit. The ordinary clamp can measure
the leakage current by clamping CT to the conductors en bloc but the actual measuring
fields where CT can be clamped en bloc are very limited. This model MCL-4000F can
measure the leakage current by clamping CTs respectively to each phase of conductors.

2. SPECIFICATIONS

2-1 Current Detection CT
Inside Diameter of CT :φ36mm
Remanence Current : less than 10mA at 100A of 3P/3W in balance
Withstanding Voltage : AC2000V, 1 minute between CT core and outer case
Dimension & Weight : 96(W)x120(H)x42(D)mm, 430g

2-2 Measuring Part
Measuring Function :Leakage Current (4CT/3CT/2CT & grounding line) and

Line Current
Measuring Method : Clamp CT Method
Measuring Range : 0～20mA/2000mA (Leakage)
0～800A (Line Current)
Range Switch : 3 range manual
AC Conversion : Average Rectification
AD Conversion : Double Integration Method
Sampling Rate : 2 times/second
Display : LCD, max. reading 1999 with annunciator
Over Range Indication : Blanking of all digit except MSD 1 (except 800A range)
Data Hold Function : "DH" sign on the display
Low Battery Indication : "B" sign on the display
Output Signal for Recorder: DC100mV full scale to each range except 800A
(DC40mV to 800A range)
Output Impedance : Less than 10KΩ
High Frequency Cut : Low Pass Filter (130Hz)

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