{"product_id":"uni-t-ut501b-insulation-resistance-tester","title":"UNI-T UT501B Digital Insulation Resistance Tester 1000V PI DAR","description":"\u003ch2\u003eUNI-T UT501B Digital Insulation Resistance Tester in Sri Lanka\u003c\/h2\u003e\n\n\u003ch3\u003e1000V Megohmmeter with PI\/DAR Measurement for Electrical Maintenance\u003c\/h3\u003e\n\n\u003cp\u003e\n  The \u003cstrong\u003eUNI-T UT501B Insulation Resistance Tester\u003c\/strong\u003e provides precise diagnostics for measuring insulation resistance, low resistance, and AC voltage across electrical equipment. It is designed to assist electrical maintenance engineers in Sri Lanka with testing transformers, motors, cables, switches, and general electrical appliances at selectable 250V, 500V, and 1000V test voltages.\n\u003c\/p\u003e\n\n\u003cp\u003eDiscover our complete selection of \u003ca href=\"\/collections\/insulation-testers\" target=\"_blank\"\u003eInsulation Resistance Testers – specifications, features, and megger testing tools in Sri Lanka!\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\n  Featuring Polarization Index (PI) and Dielectric Absorption Ratio (DAR) measurement, automatic voltage discharge, and a backlit LCD for low-light environments, this instrument streamlines insulation diagnostics and helps prevent unexpected electrical failures in industrial and commercial installations.\n\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdl class=\"package-list\"\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eInsulation Resistance (250V\/500V\/1000V)\u003c\/strong\u003e: 0MΩ~99.9MΩ, accuracy ±(3%+5) | 100MΩ~5GΩ, accuracy ±(5%+5)\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eLow Resistance (Continuity)\u003c\/strong\u003e: 0.01Ω~200Ω | Accuracy: ±(2%+3) | Test current approx. 5.0V\/\u0026gt;200mA\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eAC Voltage Measurement\u003c\/strong\u003e: 30V~600V | Accuracy: ±(2%+3)\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eShort-Circuit Current\u003c\/strong\u003e: \u0026lt;2mA\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eOvervoltage Category\u003c\/strong\u003e: CAT III 600V, Pollution Degree 2 (per IEC61010)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cdl class=\"package-list\"\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eFunctions\u003c\/strong\u003e: PI (Polarization Index) and DAR (Dielectric Absorption Ratio) measurement with selectable time intervals (60s\/15s and 60s\/30s)\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eTest Voltage Selection\u003c\/strong\u003e: Rotary knob for 250V\/500V\/1000V insulation test voltage plus AC voltage and continuity modes\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eSafety\u003c\/strong\u003e: Automatic voltage discharge after test completion, high-voltage warning light, and audible buzzer alarm\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eDisplay\u003c\/strong\u003e: 2000-count backlit LCD for clear visibility in dark plant environments, with low-battery and overload indication\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e: 6 x 1.5V (LR6) batteries with low power consumption\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eBuild\u003c\/strong\u003e: Compact, durable housing designed for mobile electrical technicians\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cdl class=\"package-list\"\u003e\n  \u003cdd\u003eInsulation resistance testing for transformers and generators\u003c\/dd\u003e\n  \u003cdd\u003ePreventive maintenance checks on electric motors and industrial machines\u003c\/dd\u003e\n  \u003cdd\u003eCable and switchgear insulation diagnostics for electrical contractors\u003c\/dd\u003e\n  \u003cdd\u003eRoutine safety testing of electrical appliances and switches\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cdl class=\"package-list\"\u003e\n  \u003cdd\u003e1 x UNI-T UT501B Insulation Resistance Tester main unit\u003c\/dd\u003e\n  \u003cdd\u003eTest leads with alligator clips\u003c\/dd\u003e\n  \u003cdd\u003eElastic carrying strap\u003c\/dd\u003e\n  \u003cdd\u003e6 x 1.5V batteries (installed)\u003c\/dd\u003e\n  \u003cdd\u003eCarrying case\u003c\/dd\u003e\n  \u003cdd\u003eEnglish user manual\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eDownloads\u003c\/h3\u003e\n\u003cp\u003e\n  \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/7587\/2725\/files\/uni-t-ut501b-data-sheet.pdf\" target=\"_blank\"\u003e📄 Download UNI-T UT501B Data Sheet\u003c\/a\u003e\u003cbr\u003e\n  \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/7587\/2725\/files\/uni-t-ut501b-user-manual.pdf\" target=\"_blank\"\u003e📄 Download UNI-T UT501B User Manual\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003cdiv class=\"product-vendor\"\u003e\n  \u003cstrong\u003eBrand:\u003c\/strong\u003e \u003ca href=\"\/collections\/vendors?q=UNI-T\"\u003eUNI-T\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"variant-inventory\"\u003e\u003cspan class=\"in-stock\"\u003eIn stock!\u003c\/span\u003e\u003c\/div\u003e","brand":"UNI-T","offers":[{"title":"Default Title","offer_id":54979114827989,"sku":null,"price":34500.0,"currency_code":"LKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7587\/2725\/files\/uni-t-ut501b-insulation-resistance-tester-front-view.jpg?v=1789792071","url":"https:\/\/nanozone.lk\/products\/uni-t-ut501b-insulation-resistance-tester","provider":"Nano Zone Trading","version":"1.0","type":"link"}