GOS-6XXG Family
Contents
1. 6 SENSOR Terminal Test terminal 7 SENSOR Terminal Test terminal 8 FORCE Terminal Test terminal 9 HI of Comparator Set For high value setting 10 LO of Comparator Set For low value setting 11 Panel Meter To indicate the test value This indicator will be lighted up when the test 12 HI Indicator value is higher than the setting of high value This indicator will be lighted up when the test value between high and low setting The buzzer 13 GO Indicator will be sounded up 2 5 seconds when the GO indicator is on This indicator will be lighted up when the test 14 LO Indicator value is lower than the setting of low value 5 GOM 801H DC MILLI OHM METER USER MANUAL CIRCUIT DESCRIPTION DVM Circuit The DVM is an A D converter by using IC U301 10 or 100 Times Signal Amplifier The signal amplifier uses IC U401 Test Range selected buttons There are 7 steps of Test ranges to be selected It will not affect its accuracy due to the alternation or temperature Constant Current Source The circuit uses IC U20land U202 and transistors Q203 and Q204 to produce constant current Comparator Set and HI GO and LO Indicators The setting is consists of the resistors and the variable resistors The comparator use IC U403 and U404 The HI GO and LO indictors use transistors Q401 Q407 Voltage Regulator Circuit The power supply has regulated output of 5V and 15V voltag2. 3 1 Unpacking the Instrument The product has been fully inspected and tested before shipping from the factory Upon receiving the instrument please unpack and inspect it to check if there is any damage caused during transportation If any sign of damage is found notify the bearer and or the dealer immediately 3 2 Line Voltage WARNING To avoid electrical shock the power cord protective grounding conductor must be connected to ground When line voltages are changed replace the required fuses shown as below Line Line voltage voltage 100V 90 110V TTO 3A 220V 198 242V T0 2A 120V 108 132V 250V 230V 216 250V 250V GOM 801H WARNING To avoid personal injury disconnect the power cord before removing the fuse holder GOM 801H DC MILLI OHM METER USER MANUAL 4 PANEL INTRODUCTION Cn 57 hance mit COMPARATOR SET Lo HIGH TEST CURRENT 1A HIGH RESOLUTION 0 01m0 YNSTEK CoM ues Je Figure 4 1 Front Panel GOM 801H DC MILLI OHM METER Front Panel USER MANUAL 1 Power Switch Power on off switch 2 Range 7 steps 20 200m Q 2 20 200Q 2 and 20kQ Set the SET TEST switch to SET position 3 JHI LO then select HI LO for high or low value setting This button can be used for testing or HI LO 4 SET TEST value setting 5 FORCE Terminal Test terminal
3. identify conditions or other property WARNING This equipment is not for measurements performed for CAT Il Ill and IV The following symbols may appear in this manual or on the product A A 4 DANGER ATTENTION Protective Earth ground High Voltage referto Manual Conductor Terminal Terminal GOM 801H DC MILLI OHM METER USER MANUAL 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 amp Yellow must be connected to the Earth terminal marked with the letter E or by the earth symbol S or colored Green or Green amp 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 ii 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 ratin
4. 1 2001 GOM 801H DC MILLI OHM METER USER MANUAL CONTENTS PAGE 1 PRODUCT INTRODUCTION TETE O O EEE 2 SPECIFICATIONS ccsscsssssssssscsecessees aseeceee PEER PEETER 2 3 PRECAUTIONS BEFORE OPERATION cccccsssssssccsssceseccssecsees 4 3 1 UNPACKING THE INSTRUMENT ccccscsccessssccessssecesssecessseceessesesees 4 3 2 EINE V OL TAGE AEE EEE E EE E E 4 4 PANEL INTRODUCTION eeseessessesecssesscssesecoseoscoeeoseoseoseoseoseseeoseoseee D 5 CIRCUIT DESCRIPTION caiiint 7 6 OPERATION INTRODUCTION ossesssssseseccccsessseeecccceesssssseceeeee 9 6 1 PRELIMINARY OPERATION c cccsscsscessssccessesecessssecessssecessssecessesesens 9 6 2 MEASUREMENT OF RESISTOR ccscsccessssccesssecessssecessssecessesecesseseeees 9 6 3 MEASUREMENT OF SWITCH cccssssccessssscesssscessesscessssecesssecessesecs 10 7s MIATINTENANG Eissssscstecscecisesctcndsesstsscsosssesteccctoattucossses svavesedebesesteebesevess 11 7 1 LINE FUSE REPLACEMENT cccscccessssscesssscessssecessesecessesecesseseceesesess 11 TE2ECEBANING reirse r steed E LE L E E EELE E AA EEEE 11 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 practices that could result in damage to this product or CAUTION Caution statements
5. Declaration of Conformity We 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 Electromagnetic 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 Electrostatic Discharge EN 55011 1998 A1 1999 A2 2002 IEC 61000 4 2 2001 Group I class B Current Harmonic Radiated Immunity TEC 61000 3 2 2000 IEC 61000 4 3 2002 A 1 2002 Voltage Fluctuation Electrical Fast Transients TEC 61000 3 3 1995 A1 2001 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 Safety Low Voltage Equipment Directive 73 23 EEC amp amended by 93 68 EEC IEC EN 61010
6. e which are regulated by using Q201 Q202 and Q301 resistors to control D201 D202 and D301 zener diodes The 5V voltage regulator circuit uses IC U302 voltage regulator GOM 801H DC MILLI OHM METER GOM 801H DC MILLI OHM METER USER MANUAL USER MANUAL 6 OPERATION INTRODUCTION 6 1 Preliminary Operation RANGE SELECTOR amp MEASUREMENT VOLTAGE REGULATOR 1 Set the power off Make sure that line voltage is correct for the input power voltage Plug power cord into the power outlet Ph Turn on the instrument and allow about 10 minutes of warm up time to 15V 15V stabilize the instrument TEST 10 OR 100 TIMES SIGNAL AMPLIFIER 6 2 Measurement of Resistor TERMINAL SET REFERENCE HI GO LO INDICATOR COMPARATOR Fig 6 1 1 Connect an unknown resistor to the test terminals as shown in Fig 6 1 TEST 2 Set the range to the position where the reading value can be obtained Fig 5 1 GOM 801H DC MILLI OHM METER USER MANUAL 6 3 Measurement of Switch F F S S Fig 6 2 1 Connect the switch to be tested as shown in Fig 6 2 2 Set the range to the position where the reading value can be obtained 10 GOM 801H DC MILLI OHM METER USER MANUAL 7 MAINTENANCE Qualified personnel execute the following instructions only To avoid electrical shock do not perform any servicing other than the operat
7. g 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 amp 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 yy 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 GOM 801H DC MILLI OHM METER USER MANUAL 2 SPECIFICATIONS The specifications are operated under the essential conditions as follows A 1 year calibration cycle GOM 801H DC MILLI OHM METER USER MANUAL Environment Indoor use altitude up to 2000m Opera
8. ing instructions unless you are qualified to do so 7 1 Line fuse replacement If the fuse blows the meter would not work Try to determine and correct the cause of the blown fuse then replace the fuse with correct rating and type shown as below FUSE RATING AND TYPE 100 120V TTO 3A 220 230V TO 2A WARNING For continued fire protection replace only N with 250V fuse of the specified type and rating and disconnect the power cord before proceeding fuse replacement 7 2 Cleaning To keep the instrument clean wipe the case with a damp cloth and detergent Do not use abrasives or solvents
9. tion Ambient Temperature 0 C_ to 40 C Favirounent Relative Humidity 80 Maximum Installation category II Pollution Degree 2 Storage o o ee AO OT s General Power source AC 100V 120V 220V 230V 10 50 60Hz 25VA Accessories Test Lead x 1 Instruction manual x 1 Dimension 245 W x95 H x280 D m m Weigh Approx 2 kg An operating temperature of 18 to 28 C 64 4 to 82 4 F Relative humidity not exceeding 80 Accuracy is expressed as percentage of reading digits The instrument requires 30 minutes warm up time to achieve rated accuracy Meter 3 1 2 Digital Panel Meter Test Current 10uA 100uA ImA 10mA 0 1A 1A Accuracy 0 2 Hi Go Lo Compare pardo 5o Accuracy 20 200m Q 2 20 2009 2 20k Q totally 7 full scale Test Ranges ranges keia 0 2 rdg 4 digits 0 2 rdg 6 digits for 20mQ range only Range Current 20 200m Q 1A 2Q 0 1A 209 10mA 200 Q ImA 2kQ 100 4 A 20k Q 104A OE WARNIN G To avoid electrical shock the power cord protective grounding conductor must be connected to ground in a place where ambient temperature exceeds 40 C CAUTION The maximum input voltage on the testing CAUTION To avoid damaging the instrument do not use it terminal is limited at 10V DC Besides do not input the voltage reversely GOM 801H DC MILLI OHM METER USER MANUAL 3 PRECAUTIONS BEFORE OPERATION
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