HZRC-3000
Digital Earth Resistance Tester
MANUAL
Huazheng Electric Manufacturing (Baoding) Co., Ltd.,
Page 1: ...HZRC 3000 Digital Earth Resistance Tester MANUAL Huazheng Electric Manufacturing Baoding Co Ltd ...
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Page 3: ...II Operation Methods 8 1 Switch On Off 8 2 Battery Voltage Check 8 3 Insert and Connection of Rods 8 4 Ground 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 14 12 Data Upload 14 VIII Battery Replacement 15 IX Accessories 16 ...
Page 4: ...r during measuring Pay attention to words and symbols stick on the Tester 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 During measurement it is forbidden to touch bare conductors and circuit under measurement Before measurement please confirm whether FUNCTION ro...
Page 5: ... no auto shut off function Please set FUNCTION rotary switch to OFF after usage When the meter displays battery low voltage symbol and you need to replace the battery in time If the Tester is not going to be used for a long period remove the battery Pay attention to measuring range and usage environment stipulated for the Tester This measuring device is only to be used disassembled adjusted and re...
Page 6: ...tion 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 HZRC 3000 Digital Earth Resistance Tester is composed of h...
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: ...ures 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 1 LCD 2 Button area 3 Rotary switch for selecting function 4 RS232 interface 5 Interface of testing wires 6 C H interface Current electrode 7 P S interface Voltage electrode 8 E interface Earth electrode 9 Testing wires 10 Auxiliary ground ...
Page 10: ...lectrode 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 error of the instrument used and the error E due to variations A Intrinsic error E1 Variation due to position change E2 Variation due to power supply voltage E3 Variation due to temperature change E4 Variation due to interferen...
Page 11: ... 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 ensure the accuracy of measurement 3 Insert and Connection of Rods Show...
Page 12: ...ge in the case of short circuit of P C interface Otherwise measuring voltage in the ground circuit of cutout switch may cause cutout switch start On measuring ground voltage please do not impose over 600V voltage on measurement connectors On measuring ground voltage please do not touch measured bare conductors in case of electric shock After connecting of auxiliary ground rod and testing wire shif...
Page 13: ...ance 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...
Page 14: ...rent 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 measureme...
Page 15: ...mercial use power system Then the earth ground resistance value of measured ground object is RX RE re Adopting simple method for measurement of earth ground resistance shall try to select the ground 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 precedence in selecting metal water pipes fire hydrants...
Page 16: ...r startup press button for a brief time to open or shut off alarm function press 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 ico...
Page 17: ...ata reading status press button to enter data deletion press or to select no or YES selecting no and then pressing MEM button for not deleting return data reading status selecting YES and then pressing MEM button for deleting stored data and it will show as above right figure after deletion 12 Data Upload Make good connection of company with RS232 communication wire of the Tester switch on the Tes...
Page 18: ...When the enclosure of Tester is wet please do not open battery cover Please put the used batteries in appointed collection place 1 Switch off making sure that the Tester is under switch off state 2 Loosen the four screws on battery cover at the bottom of the Tester and open battery cover 3 Replace new battery pay attention to battery polarity and specification close battery cover and fasten screw ...
Page 19: ...Bag 1 PC Auxiliary Ground 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 ...
Page 20: ...onvenient treatment plan for you Company Name Huazheng Electric Manufacturing Baoding Co Ltd Company Address Electeicity Valley Tech Centre No 3088 Lekai Street Hi tech Zone Baoding Hebei China After sale service 0086 312 3372757 Monday to Friday 8 00AM 17 30 PM 0086 312 3339602 Monday to Friday 8 00AM 17 30 PM 24 hours Tel 0086 18331100093 ...
