GW Instek GOM-801H User Manual

Declaration of Conformity

GOOD WILL INSTRUMENT CO., LTD.

No. 7-1, Jhongsing Rd, Tucheng City, Taipei County 236, Taiwan

GOOD WILL INSTRUMENT (SUZHOU) CO., LTD.

No.69 Lushan Road, Suzhou New District Jiangsu, China.

declares that the below mentioned product

GOM-801H

are herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Law of Member States relating to Electromagneti c Compatibility (89/336/EEC, 92/31/EEC, 93/68/EEC) and Low Voltage Equipment Directive (73/23/EEC, 93/68/EEC). For the evaluation regarding the Electromagnetic Compatibility and Low Voltage Equipment Directive, the following standards were applied:

◎ EMC EN 61326-1: Electrical equipment for measurement, control and laboratory use –– EMC

requirements (1997+A1: 1998 +A2:2001+A3:2003)

Conducted and Radiated Emission EN 55011: 1998+A1:1999 + A2:2002 Group I class B

Current Harmonic IEC 61000-3-2: 2000 Voltage Fluctuation IEC 61000-3-3: 1995+A1:2001

-------------------------

◎ Safety

Low Voltage Equipment Directive 73/23/EEC & amended by 93/68/EEC

IEC / EN 61010-1: 2001

Electrostatic Discharge IEC 61000-4-2: 2001

Radiated Immunity IEC 61000-4-3: 2002+A1:2002 Electrical Fast Transients IEC 61000-4-4: 1995+A1:2001+A2:2001 Surge Immunity IEC 61000-4-5: 2001 Conducted Susceptibility IEC 61000-4-6: 2001 Power Frequency Magnetic Field IEC 61000-4-8: 2001 Voltage Dips/ Interrupts IEC 61000-4-11: 2004

GOM-801H DC MILLI-OHM METER

USER MANUAL

CONTENTS PAGE

1. PRODUCT IN TR OD UC T ION............................................................1

2. SPECIFI CA TI ON S...............................................................................2

3. PRECAUTI O NS B E FO RE OP ER AT IO N.........................................4

3-1. UNPACKING THE INSTRUMENT..........................................................4

3-2. LINE VOLTAGE..................................................................................4

4. PANEL IN TR OD UCT I O N...................................................................5

5. CIRCUIT D ESCR IPT IO N...................................................................7

6. OPERATION INTRODUCTION .................................................9

6-1. PRELIMINARY OPERATION.................................................................9

6-2. MEASURE MENT OF RESISTOR............................................................9

6-3. MEASURE MENT OF SWITCH.............................................................10

7. MAINTENA NCE.................................................................................11

7-1. LINE FUSE REPLACEMENT................................................................11

7-2. CLEANING ........................................................................................11

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GOM-801H DC MILLI-OHM METER

USER MANUAL

GOM-801H DC MILLI-OHM METER

USER MANUAL

SAFETY TERMS AND SYMBOLS

These terms may appear in this manual or on the product:

WARNING. Warning statements identify condition or practices that could result in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.

WARNING: This equipment is not for measurements performed for CAT II, III and IV.

The following symbols may appear in this manual or on the product:

FOR UNITED KINGDOM ONLY

NOTE: This lead/appliance must only be wired by competent persons

WARNING: THIS APPLIANCE MUST BE EARTHED

IMPORTANT: The wires in this lead are colored in accordance with

the following code:

Green/ Yellow: Earth Blue: Neutral Brown: Live (Phase)

As the colors of the wires in main leads may not correspond with the colors marking identified in your plug/appliance, proceed as follows:

The wire which is colored Green & Yellow must be connected to the

Earth terminal marked with the letter E or by the earth symbol

DANGER ATTENTION Protective Earth(ground) High Voltage refer to Manual Conductor Terminal Terminal

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or colored Green or Green & Yellow. The wire which is colored Blue must be connected to the terminal

which is marked with the letter N or colored Blue or Black. The wire which is colored Brown must be connected to the terminal

marked with the letter L or P or colored Brown or Red. If in doubt, consult the instructions provided with the equipment or

contact the supplier.

iii

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GOM-801H DC MILLI-OHM METER

USER MANUAL

This cable/appliance should be protected by a suitably rated and approved HBC mains fuse: refer to the rating information on the equipment and/or user instructions for details. As a guide, cable of

0.75mm

should be protected by a 3A or 5A fuse. Larger conductors would normally require 13A types, depending on the connection method used.

Any mounded mains connector that requires removal /replacement must be destroyed by removal of any fuse & fuse carrier and disposed of immediately, as a plug with bared wires is hazardous if a engaged in live socket. Any re-wiring must be carried out in accordance with the information detailed on this label.

GOM-801H DC MILLI-OHM METER

USER MANUAL

1. PRODUCT INTRODUCTION

The Digital Milliohm Meter features with its accuracy and readability. The circuit of this instrument has equipped with the voltage regulator and temperature compensation in order for its accuracy not to be influenced by the unstable AC power source and the alternation of temperature.

The Digital Milliohm Meter is specially produced for the manufacturers of the low resistor, switch, relay, jacks, plugs, connectors sockets or the electrolytic capacitor for the QC or IQC purpose, it also can be applied to measure the initial contact resistance.

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