MULTI MEASURING INSTRUMENTS CO.,LTD. MIS-2D Manuel utilisateur

DIGITAL INSULATION

INSULATION RESISTANCE TESTER

Model MIS-2D/3D/4D

INSTRUCTION MANUAL

Thank you very much for selecting our digital insulation resistance tester.

This model is complex instrument and employs a very reliable mechanical/

electronic design.

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 : +81-3-3251-7016 FAX : +81-3-3253-4278

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

E-mail: multi@multimic. com

1. FEATURES

●MIS series are 3 ranges insulation resistance tester designed for testing of

electrical installations and equipment in accordance with IEC international

standard.

●Battery operation and heavy duty rugged case is used for high performance

insulation testing.

●The big digital and bar graph LCD display with back light enabled easy observation.

Especially, useful when working in dark place.

●Hand free and continuous measurements with custom made MΩtest switch.

●The voltage in the circuit or capacitor can be checked by warning lamp for safe

insulation measurements.

●Data hold and auto power off function.

●Ultra compact, light weight.

2. SAFETY SUMMARY

●The CAUTIONs and WARNlNGs which appear on the following pages must be

followed to ensure operator safety and to retain the operating conditions of the

instrument.

Safety Symbols:

indicates the operator must refer to an explanation in this manual.

indicates terminals at which dangerous voltages may exist.

WARNING

●To avoid electrical shock, use CAUTION when working with more than

60V DC or 25V rms.AC since the danger of electric shock exist.

In addition, check that the test leads are normal condition.

●POSSIBLE ELECTRICALSHOCK:

Do not make measurements if the case is damaged.

Make sure that the terminals and the connecting cables are in a good

condition and that the proper measuring function has been selected.

●POSSIBLE ELECTRICAL SHOCK or FIRE HAZARD:

Do not expose this instrument to rain or moisture.

Do not operate the instrument in the presence of flammable gasses or

fumes.

●This instrument must be used only by professionals. Any adjustment,

maintenance and repair of the opened apparatus under voltage shall be

carried out only by a skilled person who is aware of the hazard involved.

CAUTION

Where it is likely that the protection has been impaired, the instrument

shall be made inoperative and be secured against any unintended operation.

The protection is likely to be impaired if the instrument:

●shows visible damage.

●fails to perform the intended measurements.

●has been subjected to prolonged storage under unfavourable conditions.

●has been subjected to severe transport stresses.

3. SPECIFICATIONS

Function: Insulation resistance, AC voltage

Display: 3 1/2 digit LCD with bar graph, max. reading of 3200 count and annunciators

Response time: Less than 5 sec. (auto ranging)

Data hold indication: “DH” mark on LCD readout

Infinity indication: “OL (∞)” mark on LCD readout (over 3200 count)

Safety standard: IEC 61010-1, CAT. II 600V phase to earth

EMC standard: EN 61326

Constructional standard: IEC 61557-2

Insulation resistance: DC 500V-50MΩor more (MIS-2D)

DC 1000V-50MΩor more (MIS-3D, MIS-4D)

Withstanding voltage:AC 3700V/1minute, between input terminal and outer case

Low battery indication: “B” mark on LCD readout

Temperature characteristics (0~40℃): ±5%rdg of specified accuracy

Operation temperature: 0℃to 40℃, less than 80% RH without condensation

Storage temperature: -10℃to 60℃, less than 80% RH without condensation

Power supply: 1.5V alkaline batteries (AA size, LR-6) x 6

Dimension: 170(W) x 105(H) x 54(D)mm, approx. 365g (excluding batteries)

Accessories: Line test lead .......... 1

Earth test lead ........ 1 Line test lead

Batteries ................. 6

Test leads case ...... 1 Earth test lead

Belt ......................... 1

Instruction manual .. 1

Optional accessory: Test lead with remote switch

4. MEASURING RANGES AND TECHNICAL DATA

●Insulation resistance measurement

Model

MIS-2D

MIS-3D

MIS-4D

Rated voltage &

effective measuring

range

125V-20MΩ

250V-50MΩ

500V-100MΩ

250V-50MΩ

500V-100MΩ

1000V-2000MΩ

125V-20MΩ

250V-500MΩ

1000V-2000MΩ

Min. measurable

resistance at

rated voltage

0.125MΩ

0.25MΩ

0.5MΩ

0.25MΩ

0.5MΩ

1MΩ

0.125MΩ

0.25MΩ

1MΩ

Rated current

1mA +20% -0%

Max. no-load voltage

Rated voltage +30% -0%

Short circuit current

<2mA

●Accuracy

Rated voltage

DC125V

DC250V

DC500V

DC1000V

Measuring range

0~20MΩ~OL(∞)

0~50MΩ~OL(∞)

0~100MΩ~OL

(∞)

0~2000MΩ~OL

(∞)

First effective range

0.02~10MΩ

<±5%rdg

0.05~20MΩ

<±5%rdg

0.1~50MΩ

<±5%rdg

2~1000MΩ

<±5%rdg

Second effective

range

0.01~0.02MΩ

10~100MΩ

<±10%rdg

0.02~0.05MΩ

20~100MΩ

<±10%rdg

0.05~0.1MΩ

50~100MΩ

<±10%rdg

1~2MΩ

1000~2000MΩ

<±10%rdg

Other range

100MΩ~OL(∞)

Not specified

2000MΩ~OL(∞)

Not specified

●AC voltage measurement (50Hz/60Hz)

Range

Accuracy

Input impedance

Max. input voltage

AC 600V

±2.5% of full scale

approx. 20MΩ

AC 600V rms

5. PANEL FUNCTIO

⑦

＊⑬

①MEASURE MΩtest switch (*1)

②LCD display

③Unit cover

④Battery compartment cover

⑤Belt connecting hole

⑥Opening direction

⑦To open the unit cover, depress the yellow button of the front

⑧Data hold switch (*2)

⑨Backlight switch (*3)

⑩Range selector switch

⑪Line terminal

⑫Earth terminal

⑬The unit cover can be settled on the bottom of the unit

⑭HV lamp

①

Note: *1 The custom made MΩtest switch is used for hand free and continuous

measurements. When the switch knob is pulled up, the switch is locked

at continuous “ON” position. Thus, the continuous measurements are

enabled without any switch operation.

*2 This switch is used to hold the displayed data during measurement.

When pressed, the displayed value is held and “DH” mark appears in the

display in this condition.

*3 This switch is used to turn on the LED back light.

When pressed, the LED back light is lit for 10 minutes. By pressing this

switch once again, the LED back light will be off.

6. METHOD OF MEASUREMENT

6-1. Precautions for Use

●Always check to make sure that the range selector switch is set to the proper

position.

●Before making measurements, make sure that the terminals and test leads are in

a good condition.

●Before making any measurement, make sure that the pointer of the instrument

correspond to exactly to the zero at the beginning of the scale.

●When MEASURE MΩtest switch is set to “ON” position, a high voltage is being

generated between line and earth terminals.

Do not touch any live parts in the circuit during the measurements.

●When making MΩtest, make sure all power is disconnected in the circuit to be

measured.

6-2. Battery Check

When the battery voltage falls below a specified voltage value, “B” mark will appear

on the display. If this occurs during the measurement, replace all batteries to new

ones as soon as possible.

①To verify the battery charge, set the range selector switch to the highest insulation

resistance test range.

②Connect the tip of line test lead to the alligator clip of earth test lead and press

MEASURE MΩtest switch. If the batteries become exhausted, “B” mark will

appear on the display.

△

!WARNlNG

●When MEASURE MΩtest switch is pressed during the battery check, a high

voltage is being generated between line and earth test lead.

Do not touch any live parts of the test leads.

6-3. Auto Power Off Function

When a desired range is selected from “OFF” position, the power is turned on

activating the display. If MEASURE MΩtest switch is not pressed within 10

minutes, the automatic power off function will operate to switch the power off

automatically.

To release from this condition, reset the range selector switch again from “OFF”

position or press MEASURE MΩtest switch.

6-4. Measurement of AC Voltage

①Verify the MEASURE MΩtest switch is set to “OFF” position.

②Set the range selector switch to “ACV” range. If the range selector switch is set

to “ACV” position and even MEASURE MΩtest switch is pressed, this tester

works as AC voltage measurement tester.

③Connect the plugs of line test lead and earth test lead into the line and earth

terminals respectively.

④Connect the test leads to the circuit under test. If the voltage is applied to the unit,

HV lamp is turned on.

⑤Read the voltage value in the display after display stabilized.

△

!WARNlNG

●POSSIBLE ELECTRICAL SHOCK or FIRE HAZARD.

Do not expose the instrument to rain or moisture. Do not operation the

instrument in the presence of flammable gases or fumes.

●To avoid damage to the instrument, disconnect test leads before changing

function.

●Never fail to keep the max. 600V AC input to avoid electrical shock or damage.

●To avoid electrical shock or damage, do not apply any voltage to the

instrument when MEASURE MΩtest switch is set to “ON” position.

Set to OFF

6-5. Insulation Resistance Test

①Set the range selector switch to a desired range appropriate to the circuit to be

measured. (Refer to the section 4. “Insulation resistance measurement”).

②Connect the test leads to line and earth terminals.

③Connect the tip of line test lead to the alligator clip of earth test lead and press

MEASURE MΩtest switch. Verify zero MΩis indicated on the display.

④Connect the test leads to the circuit under test and verify HV lamp is turned off.

⑤Press MEASURE MΩtest switch and read the insulation resistance value on the

display.

Note: “OL” mark indicate “over load” and “infinity (∞) of insulation resistance value”.

When “OL” mark is displayed, “∞” mark also appears on the upper right

side of LCD.

△

!WARNlNG

●When MEASURE MΩtest switch is set to “ON” position, a high voltage is being

generated between line and earth terminals.

Do not touch any live parts in the circuit during the measurements.

●When making MΩtest, make sure all power is disconnected in the circuit to be

measured.

●Always make sure HV lamp is turned off before pressing MEASURE MΩtest

switch

6-6. Discharging of Capacitors in The Circuit

After the MΩtest has been done, keep to connect the test leads to the circuit

under test and turn off the MEASURE MΩtest switch. The generation of voltage

output is stopped and the discharging circuit is activated, thus, the charged electric

power in the circuit will be discharged.

To verify the discharging condition, observe the HV lamp.

When discharged, HV lamp is turned off (no voltage condition).

Set to ON

One end of load

is grounded

7. REPLACEMENT OF BATTERIES

Before changing batteries, remove all electrical input and set the range selector switch

to “OFF” position. To replace batteries, remove the battery cover located on the unit

back. Loosen a screw on the battery cover by flat blade screw driver or coin. Then,

slowly remove the battery cover.

Replace the six batteries (AA size or LR6) with new ones observing polarity.

Use high-quality batteries which are guaranteed against leakage. If the instrument is left

unused for long periods of time, remove the batteries to prevent damage from leakage.

6. REPAIR SERVICE

When requesting for repair service, Please bring the instrument directly to the dealer

where you bought.

When mailing the instrument, always pack it in its original or equivalent packing

materials to avoid any damage during the transportation and also put together with

documents showing your name, address, phone number and defect point.

7. WARRANTY

This instrument is sent out from our factory after the sufficient internal inspections but

if you find any defect due to the fault in our workmanship or the original parts, please

contact the dealer where you bought the instrument.

The warranty period is 12 months from the date of purchase and the instrument shall

be repaired at free of charge, provided that we judge the cause of defect is obviously

resulted from our responsibility.

GUARANTEE REGULATIONS

1. This instrument is warranted for the operation under normal use for 12 months from

the date of purchase.

2. This warranty does not cover the following defects:

a. Defects caused from the improper use and operation.

b. Defect caused from the use, operation and storage beyond the original

specifications, designs and conditions.

c. Defect caused from the renovations or repairs done by someone else than us or

our representatives.

d. Defect not caused from our responsibilities.

Battery compartment cover

Screw

Ce manuel convient aux modèles suivants

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