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Page 3: ...I Operation Methods 8 1 Switch On Off 8 2 Battery Voltage Check 8 3 Insert and Connection of Rods 8 4 Earthing Voltage Measurement 9 5 Wire Resistance Verification 10 6 Precision Measurement 10 7 Simple Measurement 11 8 Backlight Control 13 9 Alarm Settings 13 10 Data Lock Storage 13 11 Data Reading Deletion 13 12 Data Upload 14 VIII Battery Replacement 14 IX Accessories 15 ...
Page 4: ...uring measuring u Pay attention to words and symbols stick on the Tester u It shall make sure that tester and accessories are in good condition before use it can be used only when there is no damaged naked or broken part in testing wires or insulation layer u During measurement it is forbidden to touch bare conductors and circuit under measurement u Before measurement please confirm whether FUNCTI...
Page 5: ... no auto shut off function Please set FUNCTION rotary switch to OFF after usage u When the meter displays battery low voltage symbol and you need to replace the battery in time u If the Tester is not going to be used for a long period remove the battery u Pay attention to measuring range and usage environment stipulated for the Tester u This measuring device is only to be used disassembled adjuste...
Page 6: ...ion more accurate on measuring on site low value earth ground resistance which can avoid error caused by resistance change due to prolonged usage of testing wire avoid error caused by testing wire that is failed to be fully inserted into tester interface or by poor contact avoid error caused by users replacing or lengthening testing wires ETCR3000 Digital Earth Resistance Tester is composed of hos...
Page 7: ...de Precise 3 pole measurement simple 2 pole measurement Measuring Method Earth ground resistance rated current change pole method measurement current 3mA Max 820Hz Voltage to ground average value rectification Data Mode Average value maximum minimum Wire Resistance Verification Avoid error caused by testing wire that is failed to be fully inserted into tester interface or by poor contact or by use...
Page 8: ...h display FULL icon to indicate storage is full Data Hold Data hold function HOLD icon display Data Read Data read function READ icon display Overflow Display Exceeding measuring range overflow function OL icon display Alarm Function When measuring value exceeds alarm setting value there is Toot toot toot alarm hint Battery Voltage When battery voltage decreases to about 7 8V battery voltage low i...
Page 9: ...sulation Resistance Over 10MΩ between circuit and enclosure it is 500V Withstanding Voltage AC 3700V rms Between circuit and enclosure Electromagnetic Features Wireless frequency electromagnetic field Protection Type IEC61010 1 IEC1010 2 31 IEC61557 1 5 IEC60529 IP54 Pollution etc 2 CAT Ⅲ 300V IV Tester Structure ...
Page 10: ...ent with fall of potential method AC constant current I 3mA Max 820Hz is applied between the measurement object E earth electrode and C current electrode and finding out the potential difference V between E and P potential electrode Rx V I 3 Maximum Operating Error Operating error B is an error obtained within the rated operating conditions and calculated with the intrinsic error A which is an err...
Page 11: ...itch on and off When rotary switch button displays OFF for shut off The Tester has no auto shut off function so please shut it off after usage in case of battery consumption saving 2 Battery Voltage Check After switch on if LCD displays low battery voltage icon which indicates that battery voltage is low and please replace the battery in compliance with instructions Adequate battery power can ensu...
Page 12: ...in the case of short circuit of P C interface Otherwise measuring voltage in the earthing circuit of cutout switch may cause cutout switch start On measuring earthing voltage please do not impose over 600V voltage on measurement connectors On measuring earthing voltage please do not touch measured bare conductors in case of electric shock After connecting of auxiliary earthing rod and testing wire...
Page 13: ...ce value and stores it For this time switch on it will automatically deduct the verified wire resistance value from earth ground resistance measurement It will not preserve the verified wire resistance value on switching off It needs re verification for next time switching on 6 Precision Measurement Please make sure testing wire plug has been totally inserted into testers corresponding interface a...
Page 14: ...t measured values by pressing CLR button 7 Simple Measurement When select commercial use power supply system earth as auxiliary earth electrode it must use detector to confirm that is it the earth ground electrode for commercial use power supply system It is forbidden to use this Tester to confirm earth electrode of commercial use power supply system This method is a simple method for measurement ...
Page 15: ... resistance value of common earthing object like commercial use power system Then the earth ground resistance value of measured earthing object is RX RE re Adopting simple method for measurement of earth ground resistance shall try to select the earthing object with low value as the auxiliary earth ground electrode and thus the tester reading value can be more approaching to true value Please take...
Page 16: ...ess button for a long time about 3 seconds to enter alarm critical value settings press or to change current digital press button to move cursor and then press button to store and exit When measurement value is larger than alarm critical settings value and it has opened alarm function the Tester will flash and display icon and give out toot toot toot alarming sound 10 Data Lock Storage Startup or ...
Page 17: ...nd the connection is successful then it can read the stored historical data upload to company and preserve Monitoring software has the function of online real time monitoring and historical inquiry dynamic display with the maximum minimum and average value indication with alarm value settings and alarm indicator and the function of historical data access reading preserve print and other functions ...
Page 18: ...ag 1 PC Auxiliary Earthing Rod 2 PCS Monitoring Software Disk 1 Copy RS232 Communication Cable 1 PC Testing Wire 3 PCS Simple testing wire 2 PCS Zinc manganese dry battery 6 PCS R14S 1 5V Manual Warranty card Qualification Certificate 1 Copy ...
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Page 20: ... Electronic Technology Company Address F 3F No 4 Pengshang Zhifu Road Jiahe Baiyun District Guangzhou Guangdong China Post Code 510440 Tel 86 20 62199556 62199553 Fax 86 20 62199550 E mail info etcr cc Website www etcr cc ...
