{"id":16139,"date":"2020-12-14T08:06:07","date_gmt":"2020-12-14T01:06:07","guid":{"rendered":"https:\/\/techmaster.com.vn\/may-do-dien-tro-dat-extech-grt300\/"},"modified":"2021-06-17T10:24:20","modified_gmt":"2021-06-17T03:24:20","slug":"extech-grt300-4-wire-earth-ground-resistance-tester","status":"publish","type":"product","link":"https:\/\/techmaster.com.vn\/en\/extech-grt300-4-wire-earth-ground-resistance-tester\/","title":{"rendered":"EXTECH GRT300 4-WIRE EARTH GROUND RESISTANCE TESTER"},"content":{"rendered":"

SPECIFICATIONS EXTECH GRT300 4-WIRE EARTH GROUND RESISTANCE TESTER<\/strong><\/p>\n

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Earth Ground Resistance ranges:<\/strong> 20\u03a9\/ 200\u03a9\/2000\u03a9<\/p>\n

Basic Accuracy:<\/strong> \u00b1(2%rdg+2d)<\/p>\n

Resolution:<\/strong> 0.01\u03a9\/ 0.1\u03a9\/1\u03a9<\/p>\n

Test Current \/ Frequency<\/strong>: <2.5mA \/ 820Hz<\/p>\n

AC Earth Voltage \/ Frequency:<\/strong> 0 to 200VAC \/ 50 to 400Hz<\/p>\n

Accuracy:<\/strong> \u00b1(3%rdg+3d)<\/p>\n

DC Voltage:<\/strong> 0 to 1000V<\/p>\n

Accuracy:<\/strong>\u00a0 \u00b1(0.8%rdg+3d)<\/p>\n

Resistance:<\/strong> 0 to 200k\u03a9<\/p>\n

Accuracy:<\/strong> \u00b1(1%rdg+2d)<\/p>\n

Continuity:<\/strong> 40\u03a9<\/p>\n

Power supply:<\/strong> Six 1.5V \u2018AA\u2019 Batteries<\/p>\n

Dimensions:<\/strong> 7.9 x 3.6 x 2″ (200 x 92 x 50mm)<\/p>\n

Weight:<\/strong> 1.5lbs (700g) (meter only)<\/p>\n

Introduction <\/strong>Extech GRT300<\/strong><\/p>\n<\/div>\n<\/div>\n

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Includes all hardware necessary to measure earth ground in 3 ranges from 20 to 2000Ohm<\/strong><\/em><\/h3>\n

The 382252 is an Earth Ground Resistance Tester Kit which includes all hardware necessary to measure earth ground in 3 ranges from 20 to 2000 omega. Also tests AC\/DC Voltage, resistance and continuity. Featuring Automatic zero adjustment and three earth ground resistance ranges 20\u03a9\/200\u03a9\/2000\u03a9. Complete with test leads, 2 auxiliary earth bars, carrying case, protective rubber holster and six 1.5V AA batteries.<\/p>\n

\"M\u00e1y<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n

Features Extech GRT300<\/strong><\/strong><\/h2>\n
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– Microprocessor controlled with advanced safety features<\/p>\n

–\u00a0<\/span><\/span>Two line LCD display<\/p>\n

–\u00a0<\/span><\/span>Auto-Ranging (Extech GRT300)<\/p>\n

–\u00a0<\/span><\/span>Earth resistance testing with four ranges: 0-2\u03a9\/0-20\u03a9\/0-200\u03a9\/0-2k\u03a9<\/p>\n

– <\/span><\/span>Earth voltage measuring range of 0-300Vac<\/p>\n

–\u00a0<\/span><\/span>Automatic C spike check.<\/p>\n

–\u00a0<\/span><\/span>Automatic P spike check.<\/p>\n

–\u00a0<\/span><\/span>2-wire test<\/p>\n

–\u00a0<\/span><\/span>3-wire test<\/p>\n

–\u00a0<\/span><\/span>4-wire test<\/p>\n

–\u00a0<\/span><\/span>Auto power off<\/p>\n

–\u00a0<\/span><\/span>Data hold<\/p>\n

–\u00a0<\/span><\/span>Safety standard: EN 61010-1 CATIV 300V, EN 61326-1<\/p>\n

Extech Brand<\/strong><\/h2>\n

Extech Instruments was established in 1971, it has focused on Test and Measurement tools built for the professionals, tradesperson and DIY\u2019ers. When it comes to tools that help prevent, identify and troubleshoot problems in a plethora of applications; whether it\u2019s electrical, mechanical, maintenance, safety or environmental applications, Extech products are trusted by the professionals and are put to the test every day. With over 45 years, Extech is renowned as one of the largest manufacturers and suppliers of innovative, quality handheld test, measurement and inspection tools in the world. Sold in over 100 countries around the world, Extech\u2019s success is supported by a far-reaching network of dedicated and knowledgeable distributors who introduce new users to Extech every day.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Key Features:<\/strong><\/h2>\n
    \n
  • 4-wire, 3-wire, and 2-wire testing<\/li>\n
  • Large dual line LCD<\/li>\n
  • Automatic I (current) and P (potential) spike check<\/li>\n
  • Test Hold function for easy operation<\/li>\n
  • Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off<\/li>\n
  • AC Earth Voltage<\/li>\n
  • Overrange and low battery indication<\/li>\n
  • Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries<\/li>\n<\/ul>\n","protected":false},"featured_media":5474,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[274,303],"product_tag":[],"class_list":{"0":"post-16139","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-electrical-measuring-instruments","7":"product_cat-earth-ground-tester","8":"pa_attribute-electricity","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-grouped"},"yoast_head":"\nEXTECH GRT300 4-WIRE EARTH GROUND RESISTANCE TESTER - Techmaster Electronics JSC<\/title>\n<meta name=\"description\" content=\"The Extech GRT300 measures earth ground in 4 ranges from 2 to 2000 Ohm. 4-wire, 3-wire, and 2-wire testing. 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