Hioki SM7810 Bedienungsanleitung

SUPER MΩ HiTESTER

Instruction Manual

SM7810-20

March 2012 Revised edition 1 SM7810A981-01 12-03H

SM7810

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

Contents

付

録

索

引

Contents

Introduction.................................................................................1

Confirming Package Contents....................................................1

Safety Information ......................................................................2

Operating Precautions................................................................4

Chapter 1

Overview ___________________________________ 7

1.1 Product Overview and Features .........................................7

Operating Principles and Block Diagram ............................................8

1.2 Names and Functions of Parts ............................................9

1.3 Screen Layout ...................................................................10

Chapter 2

Measurement Preparations___________________ 11

2.1 Installation & Connection Procedures ...............................11

2.2 Connecting the Power Cord ..............................................12

2.3 Connecting the Measurement Cables ...............................13

2.4 Connecting the Measurement Power Source ...................14

2.5 Turning the Power On and Off ..........................................15

Chapter 3

Setting Measurement Conditions______________ 17

3.1 Pre-Operation Inspection .................................................. 17

3.2 Setting Measurement Conditions ......................................18

Chapter 4

Communication (GP-IB/RS-232C Interface)______ 19

4.1 Overview and Features .....................................................19

4.2 Specifications ....................................................................20

4.3 Connect a cable to the GP-IB connector

or RS-232C connector ......................................................21

4.4 Configuring the Communications Protocol ........................23

4.5 Communication Methods ..................................................24

Status Byte Register .........................................................................27

Event Registers ................................................................................29

Error Registers ..................................................................................32

Contents

4.6 Message List ..................................................................... 33

4.7 Listener Specification Precautions .................................... 40

Input buffer size ................................................................................ 40

Reading from the output buffer ........................................................ 40

Chapter 5

External Control ____________________________41

5.1 External Input/Output Connector and Signals .................. 41

Connector Type and Signal Pinouts ................................................. 42

Signal Descriptions .......................................................................... 43

5.2 Timing Chart ..................................................................... 44

5.3 Internal Circuitry ................................................................ 47

Chapter 6

Specifications ______________________________49

6.1 General Specifications ...................................................... 49

6.2 Basic Specifications .......................................................... 50

6.3 Functions .......................................................................... 51

6.4 Measurement Specifications ............................................. 54

6.5 Input / Output Functions (Interface for External Control) .. 57

Chapter 7

Maintenance and Service ____________________59

7.1 Troubleshooting ................................................................ 59

Inspection and Repair ...................................................................... 59

7.2 Replacing the Power Fuse ................................................ 60

7.3 Error Displays ................................................................... 61

7.4 Cleaning ............................................................................ 61

Appendix _________________________________ A1

Appendix 1 Attaching Rubber Feet .............................................A1

Appendix 2 Rack Mounting .........................................................A2

Appendix 3 External Dimensions ................................................A4

Introduction

Thank you for purchasing the HIOKI Model SM7810, SM7810-20 Super MΩ HiT-

ester. To obtain maximum performance from the instrument, please read this

manual first, and keep it handy for future reference.

When you receive the instrument, inspect it carefully to ensure that no damage

occurred during shipping. In particular, check the accessories, panel switches,

and connectors. If damage is evident, or if it fails to operate according to the

specifications, contact your dealer or Hioki representative.

Options

□Model 9637 RS-232C Cable (9pin-9pin/Cross/1.8m)

□Model 9638 RS-232C Cable (9pin-25pin/Cross/1.8m)

□Model 9151-02 GP-IB Connector Cable (2 m)

Introduction

Confirming Package Contents

Confirm that these contents are provided.

□Model SM7810, SM7810-20 Super MΩ HiTester (1)

(Model SM7810 Rated supply voltage: 100 VAC, 110 VAC)

(Model SM7810-20 Rated supply voltage: 220 VAC)

□Power cord (1)

□Instruction manual (1)

□Voltage input connector (1)

□Spare fuse (1)

(built into inlet)

□Rubber feet (4)

Safety Information

This manual contains information and warnings essential for safe operation of

the instrument and for maintaining it in safe operating condition. Before using it,

be sure to carefully read the following safety precautions.

The following symbols in this manual indicate the relative importance of cautions

and warnings.

Safety Information

This instrument is designed to comply with IEC 61010 Safety Standards,

and has been thoroughly tested for safety prior to shipment. However, mis-

handling during use could result in injury or death, as well as damage to

the instrument. Using the instrument in a way not described in this manual

may negate the provided safety features.

Be certain that you understand the instructions and precautions in the

manual before use. We disclaim any responsibility for accidents or injuries

not resulting directly from instrument defects.

Safety Symbols

In the manual, the symbol indicates particularly important information that

the user should read before using the instrument.

The symbol printed on the instrument indicates that the user should refer

to a corresponding topic in the manual (marked with the symbol) before

using the relevant function.

Indicates that dangerous voltage may be present at this terminal.

Indicates a fuse.

Indicates a grounding terminal.

Indicates a ground terminal connected to the chassis of the system.

Indicates DC (Direct Current).

Indicates AC (Alternating Current).

Indicates the ON side of the power switch.

Indicates the OFF side of the power switch.

Indicates that incorrect operation presents an extreme hazard that

could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant hazard that

could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of injury to the

user or damage to the instrument.

Indicates advisory items related to performance or correct operation

of the instrument.

Safety Information

Measurement categories (Overvoltage categories)

To ensure safe operation of measurement instruments, IEC 61010 establishes

safety standards for various electrical environments, categorized as CAT I to

CAT IV, and called measurement categories.

Using a measurement instrument in an environment designated with a higher-

numbered category than that for which the instrument is rated could result in a

severe accident, and must be carefully avoided.

Other symbols

Indicates a prohibited action.

*Indicates that descriptive information is provided below.

PAGE

(Bold characters)

Bold characters within the text indicate operating key labels.

(p. #) Indicates the location of reference information.

CAT I Secondary electrical circuits connected to an AC electrical

outlet through a transformer or similar device.

CAT II Primary electrical circuits in equipment connected to an AC

electrical outlet by a power cord (portable tools, household

appliances, etc.)

CAT II covers directly measuring electrical outlet receptacles.

CAT III Primary electrical circuits of heavy equipment (fixed

installations) connected directly to the distribution panel, and

feeders from the distribution panel to outlets.

CAT IV The circuit from the service drop to the service entrance, and

to the power meter and primary overcurrent protection device

(distribution panel).

Operating Precautions

Follow these precautions to ensure safe operation and to obtain the full benefits

of the various functions.

Before using the instrument for the first time, verify that it operates normally to

ensure that no damage occurred during storage or shipping. If you find any dam-

age, contact your dealer or Hioki representative.

Operating temperature and humidity:

0 to 40°C at 80%RH or less (non-condensing)

Temperature and humidity range for guaranteed accuracy:

23±5°C, 80%RH or less (non-condensing)

Operating Precautions

Preliminary Checks

Instrument Installation

Avoid the following locations that could cause an accident or damage

to the instrument.

Exposed to direct sun-

light

Exposed to high tem-

perature

In the presence of

corrosive or explosive

gases

Exposed to water, oil,

other chemicals, or

solvents

Exposed to high hu-

midity or condensa-

tion(

Exposed to strong

electromagnetic fields

Near electromagnetic

radiators

Exposed to high lev-

els of particulate dust

Near electromagnet-

ic radiators (e.g.,

high-frequency induc-

tion heating systems

and IH cooking uten-

sils)

Subject to vibration

Do not slant the instrument or place it on top of an uneven surface. Dropping or

knocking down the instrument can cause injury or damage to the instrument.

Operating Precautions

Handling the Instrument

•Do not allow the instrument to get wet, and do not take measurements

with wet hands. This may cause an electric shock.

•Touching any of the high-voltage points inside the instrument is very

dangerous. Do not attempt to modify, disassemble or repair the instru-

ment; as fire, electric shock and injury could result.

To avoid damage to the instrument, protect it from physical shock when trans-

porting and handling. Be especially careful to avoid physical shock from drop-

ping.

Handling the Cords

Before using the instrument, make sure that the insulation on the Connec-

tion Cable is undamaged and that no bare conductors are improperly

exposed. Using the instrument in such conditions could cause an electric

shock, so contact your dealer or Hioki representative for replacements.

• Avoid stepping on or pinching cables, which could damage the cable insula-

tion.

• To avoid breaking the cables, do not bend or pull them.

• To avoid damaging the power cord, grasp the plug, not the cord, when unplug-

ging it from the power outlet.

• Keep the cables well away from heat sources, as bare conductors could be

exposed if the insulation melts.

Use only the specified connection cables. Using a non-specified cable may

result in incorrect measurements due to poor connection or other reasons.

Before Connecting

•Before turning the instrument on, make sure the supply voltage matches

that indicated on its power connector. Connection to an improper supply

voltage may damage the instrument and present an electrical hazard.

•To avoid electrical accidents and to maintain the safety specifications of

this instrument, connect the power cord only to a 3-contact (two-conduc-

tor + ground) outlet.

Operating Precautions

To ensure measurements are accurate,

• Warm up the instrument 60 minutes or more before use.

• The instrument should be calibrated once a year.

Input and Measurement Precautions

•The maximum input voltage and maximum rated voltage to earth are 1000

VDC. If their voltages are exceeded, this instrument will be damaged and

personal injury will result. Therefore, do not input signals in excess of

these values.

•To avoid electrical hazards and damage to the instrument, do not apply

voltage exceeding the rated maximum to the voltage input terminal.

1.1 Product Overview and Features

The instrument is an 8-channel, high-sensitivity ammeter for use in measuring

insulation resistance. It can perform insulation measurement of target objects

such as electrical insulators with high resistance values, measuring all 8 chan-

nels simultaneously at high speed. The instrument is designed for use in applica-

tions such as automatic insulation testing, particularly of capacitors.

This insulation measuring instrument requires an external measurement power

source to be provided by the operator. HIOKI offers a recommended power

source (Model SM7860 series Power Source Unit).

Overview Chapter 1

1.1 Product Overview and Features

Easy integration into automated testing sys-

tems

The instrument features a standard external I/O inter-

face, allowing contact check results and comparison

judgment results to be downloaded to other devices.

Additionally, external I/O can be used to easily change

target objects, making it easy to integrate the instru-

ment into an automated testing system.

High-speed insulation resistance measurement

The instrument is a high-sensitivity ammeter for use in in-

sulation resistance measurement applications. The time

from trigger activation to index output is as little as 7 ms.

TRIG

INDEX

Judgment

7 ms (min)

C.C. Measu

rement

Machine cycle

8-channel simultaneous measurement

The instrument can measure 8 channels simulta-

neously, boosting production volume. This capa-

bility improves on previous HIOKI instruments,

which offered 4 channels.

充電3

充電1 充電2

充電ｎ

測定1

測定2

1列

8列

Charge 2

Charge 1 Charge 3

Charge n

Measure 1

Measure 2

Row 1 Row 8

Compatibility with high-

capacity capacitors

Range: 100 pA to 1 mA

The instrument features an ex-

panded current measurement

range to accommodate increas-

ingly high-capacity MLCCs, mak-

ing possible more accurate pass/

fail judgments.

Interface communications

The instrument can be connect-

ed to a control device and con-

trolled via either its GP-IB or RS-

232C interface. Measurement

data can also be downloaded.

Contact check for improved reliability

The instrument can check for poor contact with the ob-

ject under measurement using the capacitance detec-

tion method, and the results of this check can be

output from the instrument.

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