Related Manuals for Huazheng Electric Manufacturing HZRC-3000
Summary of Contents for Huazheng Electric Manufacturing HZRC-3000
- Page 1 HZRC-3000 Digital Earth Resistance Tester MANUAL Huazheng Electric Manufacturing (Baoding) Co., Ltd.,...
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Page 3: Table Of Contents
CONTENT Warning ....................1 I．Introduction ..................3 II．Measuring Range and Accuracy ........... 4 III．Technical Specifications ..............4 IV．Tester Structure ................6 V．Measuring Principle ................ 7 VI. Function Quick Check ..............8 VII. Operation Methods ................. 8 1．Switch On/Off ................8 2．Battery Voltage Check .............. -
Page 4: Warning
Warning Thanks for your purchase of HZRC-3000 Digital Earth Resistance Tester of our company. For better use of the product, please make sure: ---to read this user manual in details. ---to abide by the safety regulations and precautions strictly. The tester is conforming to IEC61010 on design, production and test. - Page 5 Please don’t measure in an inflammable place. The flame sparkle maybe cause explosion. During usage of tester, please stop using it when exposed metal is caused by broken enclosure or testing wires. Please don’t keep or store the tester in the spot with high-temperature and moisture, or condensation, and under direct daylight radiation for a long time.
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Page 6: I．introduction
HZRC-3000 Digital Earth Resistance Tester has a unique function of wire resistance verification ， 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;... -
Page 7: Measuring Range And Accuracy
II．Measuring Range and Accuracy Measuring Measuring Accuracy Resolution Functions Range 0.01Ω～20Ω 0.01Ω ± 2%rdg± 3dgt (Auxiliary earth 0.1Ω～200Ω 0.1Ω Earth Ground ground resistance Resistance 100Ω±5%，voltage 1Ω～2000Ω 1Ω to ground＜10V) Earth Ground 0～600V AC ± 2%rdg± 3dgt Voltage (Remark: 23℃± 5℃,below 75%rh) III．Technical Specifications Earth ground resistance measurement, voltage to Function... - Page 8 Simple Testing 2 wires: each for Red 1.6m and Green 1.6m Wire Auxiliary 2 PCS：Φ10mm×150mm ground rod Voltage to ground: about 3 times/second; earth Measuring Rate ground resistance: about 5 seconds/time Over 5000 times Measuring (Measuring 10Ω for one time on 20Ω range and take a Times pause for 25s) Measuring voltage to ground: measuring below AC...
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Page 9: Tester Structure
Measuring earth ground resistance: between each Overload Protection interfaces of E-P、E-C, AC 280V/3 seconds Insulation Over 10MΩ(between circuit and enclosure it is 500V) Resistance Withstanding AC 3700V/rms (Between circuit and enclosure) Voltage Electromagnetic Wireless frequency electromagnetic field Features IEC61010-1 、 IEC1010-2-31 、 IEC61557-1,5 、 Protection Type IEC60529(IP54)、Pollution etc. -
Page 10: Measuring Principle
V．Measuring Principle 1. Voltage to ground measurement adopts average value rectification method. 2. Earth resistance measurement 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). -
Page 11: Function Quick Check
VI. Function Quick Check FUCTION rotary Switch on/off ,Function shift, Switch gear switch Up/down arrow Data read/numerical value settings button Backlight button Backlight control START button Start measuring Maximum, Minimum or Average value MODE button mode, Move cursor CLR button Clear data/Delete data MEM button Data lock/storage/reading... -
Page 12: 4．Ground Voltage Measurement
Please try to insert auxiliary ground rod into moist soil. In case of dry soil, sand, or gravel land, it requires adding water to keep auxiliary ground rod Note inserted place wet. In case of concrete place, it shall keep auxiliary ground rod flat and add water, and cover wet towels on earth ground rod before measurement. -
Page 13: 5．Wire Resistance Verification
5．Wire Resistance Verification In order to improve precision and stability of field measurement of earth ground resistance, avoid error due to wire resistance change due to prolonged usage of testing wires; avoid error due to testing wire that is failed to be fully inserted into tester interface or by poor contact;... -
Page 14: 7．Simple Measurement
There are 3 types of display modes for earth ground resistance measurement: P：---- Average Value Display H：---- Maximum Display L：---- Minimum Display The default display on booting is average value, and press MODE button to switch display mode. Precision measurement earth ground resistance adopts three-wire connection. - Page 15 Transformer Green Secondary Primary Commercial Grounded object grounding object being measured Simple method for measurement of earth ground resistance, its reading on Tester is the total value of earth ground resistance value of measured ground object and that of commercial ground object, namely: RE=RX＋re In which: RE is the Tester reading value;...
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Page 16: 8．Backlight Control
Green Metal water pipe building lightning protection grounding Grounded object as auxiliary grounding pole being measured Simple method for measurement of earth ground resistance also needs to confirm that voltage value to ground must be lower than 10V. If the voltage value is over 10V, the measurement value of earth ground Note resistance may cause error and at that time, it shall firstly cut off power... -
Page 17: 11．Data Reading/Deletion
stored data includes maximum, minimum and average value. And then press button to remove lock. As shown in the left figure below: the lock measurement data is 5.1Ω, as the 19th group of data storage. 11．Data Reading/Deletion Startup or after measurement, press button for a longer time (over 3 seconds) to enter data reading, press button to select reading... -
Page 18: Battery Replacement
VIII. Battery Replacement Please don’t replace battery in flammable spot Please don’t replace battery during measurement Pay attention to battery polarity and specification, and don’t mix use of new and used battery to avoid damage on Tester When the enclosure of Tester is wet, please do not open battery cover Please put the used batteries in appointed collection place. -
Page 19: Accessories
IX．Accessories Tester 1 PC Tester 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 1 Copy Certificate -16-... - Page 20 Any abnormal or faulty of the instrument,please contact me promptly,then w e can arrange the most convenient 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...
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