Hioki SM-8213 Manual de usuario

SUPER MEGOHMMETER

INSTRUCTION MANUAL

SM-8213

SM-8215

SM-8220

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The super megohmmeter is a unique resistance meter designed to measure highresistance in a wide range.

The meter outputs a high test voltage – 1000 V maximum for the SM-8220/8215, and 100 V

maximum for the SM-8213 – to apply across the sample circuit.

Operators are requested to read this operation manual thoroughly before trying to operate the

instrument for safety and to prevent electrical shock and damage to the measured circuit.

Keep this manual where all staff can access it any time.

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DANGER

A “DANGER” CALLS ATTENTION TO A CONDITION OR POSSIBLE

SITUATION THAT CAN CAUSE DEATH OR INJURY TO THE

OPERATOR OR NEAR PESONS.

1. Safety Precautions

Operators of the SM-8200 Series super megohmmeter are requested to read this operation

manual thoroughly before operation for safety and to obtain best performance.

Operators are also requested to strictly observe all the DANGER, WARNING, and CAUTION

notices in this manual and on the instrument to prevent injury and damage.

1-1 Safety Warnings

This operation manual includes some DANGER!, WARNING!, and CAUTION! notice with a

symbol. These must be observed for safety of the operator and other persons, as well as for

protection of your super megohmmeter and samples from possible damage and destruction.

WARNING

A “WARNING” CALLS ATTENTION TO A CONDITION OR POSSIBLE

SITUATION THAT COULD CAUSE DEATH OR INJURY TO THE

OPERATOR OR NEAR PESONS.

CAUTION

A “CAUTION” calls attention to a condition or possible situation that

could cause injury to the operator or persons nearby and damage and

destroy the super megohmmeter and samples.

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iii

背面パネル

警告、危険シール

DANGER

端子より高電圧発生の為、

感電の恐れあり。

HIGH VOLTAGE

危険

高電圧危険

Electric shock hazard!

Terminals carry high voltage.

正面パネル

1.2 Symbols on the Super Megohmmeter

Safety Warning Labels on the Super Megohmmeter

Symbol Meaning Description

WARNING

This symbol is shown at pats whose usage needs

reference to the operation manual.

DANGER –

HIGH VOLTAGE

HAZARD

This symbol is shown at the Rx

“‑“/”+”

Measuring terminals which carry a high voltage

to be applied across the circuit to be measured.

This symbol is shown at the GND

terminal on the rear of the unit. If the

ground prong of the power cord plug

cannot be grounded, this terminal must be

connected to the ground.

1) DANGER and WARNING Labels on the Housing and Front Panel

2) DANGER and WARNING Labels on the Rear Panel

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2. Operating Environmental Precautions

D DANGER

■Do not operate the super megohmmeters in the presence of flammable gas. There is s

possibility of an explosion and/or fire.

■Do not touch the Rx “–”/“+” measuring terminals on the front panel of the instrument

during measurement. They output a maximum of 1000 V (SM-8220/8215) or 100 V

(SM-8213) for measurement.

WARNING

■Ground the ground prong of the power cord plug to avoid electrical shock. If the ground

prong cannot be grounded, connect the GND terminal on the rear of the instrument to a

ground. When the power cord plug is connected to the AC line socket via an

accessory 3-prong to 2-prong adapter, the green ground tab of the adapter to the

ground.

■Do not remove the housing cover of the instrument. Even after turning off the instrument

power switch, a dangerous residual voltage may be present for several minutes after the

power is turned off. If repair or internal readjustment is needed, contact your

dealer or Hioki representative.

CAUTION

■Before turning on the power switch for the instrument, check that the VOLTAGE

SELECTOR switches are set for your local AC line voltage. If the wrong AC line voltage is

applied to the unit, it will be damaged (higher voltage supply) or will not function

properly (lower voltage supply).

See 1.3 Setting VOLTAGE SELECTOR Switches for setting.

Use the right size and amperage power fuse. If a fuse of incorrect amperage is inserted

into the fuse holder, the unit will be damaged.

See 1.4 Checking the Fuse Amperage for a correct fuse amperage.

■Do not install or operate the super meghommeter on a surface which is not level or

not stable.

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3. Installation Precaution

4. Instrument Handling Precautions

CAUTION

Do not install or place the super megohmmeter in a location which is not level, not

stable or not sturdy enough to hold the instrument and other related items.

WARNING

■If the instrument generates smoke or smell, unplug the power cord.

If such an instrument is kept powered on, it may cause a fire.

Contact your dealer or Hioki representative for repair.

■Do not operate the instrument with a wet hand. This may cause electrical shock.

CAUTION

■When moving or transporting the super megohmmeter, avoid shock and vibration as much

as possible. For long-distance transportation, put the instrument in a shock-absorbing

carton or use the original shipping carton.

■When not using the super megohmmeter for an extended period of time, unplug the power

cord from the AC line socket. Put a dust cover on the instrument. Store it in a place free of

corrosive gas and vibration, with a surrounding temperature within the range from –5 to

45℃,and humidity less than 85% RH.

■Do not place anything on the instrument.

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BRIEF DESCRIPTION

About the SM-8200 Series Super Megohmmeters

The SM-8200 Series super megohmmeters are insulation resistance meters consisting of a constant voltage

power supply and a high sensitive current measuring section. The super megohmmeters are designed to

measure the electrical resistance of insulating materials with high insulation properties.

The resistance measuring ranges of the SM-8200 Series are as follows:

SM-8213: 2.5×104to 2×1012Ω

SM-8215: 2.5×105to 2×1013Ω

SM-8220: 5.0×104to 2×1016Ω

Each model of the super megohmmeters is provided with an LCD 320×240 dot display for easy

observation of necessary information, including measuring voltage, measured resistance in both

digital and analog, timer, and resultant GO/NO judgment.

The following shows the main specifications for the super megohmmeters.

For detailed specifications, see 2. SPECIFICATIONS.

For optional accessories, see 9. OPTIONAL ACCESSORIES.

Main Specifications – For detailed specifications, see 2. SPECIFICATIONS.

For optional accessories, see 9. OPTIONAL ACCESSORIES.

Measuring Voltage Ranges:

SM-8213 – 5, 10, 15, 25, 50 and 100 V

SM-8215 – 50, 100, 250, 500 and 1000 V

SM-8220 – 10, 25, 50, 100, 250, 500 and 1000 V

Measuring Resistance Range:

SM-8213: 2.5×104to 2×1012Ω

SM-8215: 2.5×105to 2×1013Ω

SM-8220: 5.0×104to 2×1016Ω

Timer Function: Provided

Comparison and Judgment Function: Provided

HV-EN (High Voltage Enable) Interlocking Function: Provided

Voltage Charging Function: Provided

Voltage Discharging Function: Provided

RS-232C Interface Connector: Provided

Remote Measurement Function: Provided

DC Signal Output Function: Optional

1/R output or proportional to resistance value output

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vii

Organization of This Operation Manual

This operation manual contains the following 10 sections.

1. PREPARATION BEFORE

OPERATION

This section describes precautions for unpacking and AC line voltage setting.

2. SPECIFICATIONS

This section describes the specifications for the SM-8200 Series super megohmmeters and

optional accessories.

3. OPERATING PRINCIPLE

This section describes the operating principle with a block diagram of the SM-8200 Series.

4. FAMILIARIZATION WITH CONTROLS AND PARTS

This section describes the functions of the controls and parts on the front and rear panels.

5. PREPARATION FOR MEASUREMENT

This section describes the LCD display in detail for the measuring mode, setting mode and

operations. A variety of measured value display methods are also given.

6. MEASUREMENT

This section provides details for function setting, connection to the work to be measured, and

usage of a variety of optional measuring jigs and electrodes.

7. RS-232C INTERFACE

This section describes the application of the serial port interface.

8. REMOTELY CONTROLLED MEASUREMENT

This section describes the remote measuring function.

9. INTRODUCTION OF OPTIONALS

This section describes the optional accessories, including guard chips, DC signal outputs, and

others.

10. MAINTENANCE AND MISCELANEOUS

This section describes maintenance and calibration.

11. EXTERNAL APPEARANCE

This section includes front, rear and side view illustrations of the instrument with dimensions.

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1. PREPARATION BEFORE OPERATION . . . . . . . . . . . . . . . . . . . . . . . １

1.1 Unpacking and Checking of the Contents . . . . . . . . . . . . . . . . . . . １

1.2 Operating AC Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ２

1.3 Setting the VOLTAGE SELECTOR Switches . . . . . . . . . . . . . . . . . . ２

1.4 Checking the Fuse Amperage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ３

1.5 Grounding the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ４

1.6 Warm-up Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ５

2. SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ６

2.1 Measuring Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ６

2.2 Function Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . ７

2.3 Other Electrical and Physical Data. . . . . . . . . . . . . . . . . . . . ７

2.4 Optional Functions and Accessories. . . . . . . . . . . . . . . . . . . ８

3. OPERATING PRINCIPLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . １０

4. FAMILIARIZATION WITH CONTROLS AND PARTS . . . . . . . . . . . . . １１

4.1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . １１

4.2 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . １３

4.3 Measuring Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . １５

4.4 Measuring Condition Setting Display . . . . . . . . . . . . . . . . . . １６

4.5 Meanings of the Status and Mode Notices. . . . . . . . . . . . . . . . １７

5. PREPARATION FOR A MEASUREMENT . . . . . . . . . . . . . . . . . . . . . １８

5.1 Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . １８

5.2 Calibration . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . １９

5.3 Basic Procedures for a Measurement. . . . . . . . . . . . . . . . . . . ２０

6. MEASUREMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ２１

6.1 Measuring Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ２１

6.2 Discharging Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ２２

6.3 Charging Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ２２

6.4 Interlocking Function – Using the HV-EN Connector . . . . . . . . ２３

6.5 Comparison and Judgment Function . . . . . . . . . . . . . . . . . . . ２４

6.6 Setting a Variety of Functions . . . . . . . . . . . . . . . . . . . . . . . ２５

6.6.1 Setting the Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ２５

6.6.2 Setting the Comparison GO/NO Judgment Level . . . . . . . . . ２５

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6.6.3 Setting Buzzer Sound ON/OFF . . . . . . . . . . . . . . . . . . . . . . ２６

6.6.4 Setting the Charging Time, Measuring Time, Comparison

GO/NO Judging Level and Buzzer Sound ON/OFF. . . . . . . . . ２６

6.7 Changes in the Current Flowing through Insulators. . . . . . . . . ２８

7. RS-232C INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ３０

7.1 RS-232C Communication Commands . . . . . . . . . . . . . . . . . . . ３０

7.2 Applications of Commands . . . . . . . . . . . . . . . . . . . . . . . . . . ３１

7.3 Connector Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . ３１

7.4 Printer Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ３２

8. REMOTELY CONTROLLED MEASUREMENT . . . . . . . . . . . . . . . . . ３３

9. INTRODUCTION OF OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . ３６

9.1 Guard Tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ３６

9.2 DC Signal Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ３８

9.2.1 DC Output, RP-8000

– Directly proportional or linear to resistance . . . . . . . . . . ３８

9.2.2DC Output, RI-8000

– Inversely proportional or 1/R to resistance . . . . . . . . . . ４０

10. MAINTENANCE AND MISCELANEOUS . . . . . . . . . . . . . . . . . . . . ４１

10.1 Periodical Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ４１

10.2 Storage, Transportation and Abandon . . . . . . . . . . . . . . . . . ４１

11. EXTERNAL APPEARANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ４２

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