{"product_id":"uni-t-ut501b-insulation-resistance-tester","title":"UNI-T UT501B Insulation Resistance Tester","description":"\u003cp\u003eThis product comes with a 3-year warranty. UT501B insulation resistance tester.\u003cbr\u003e\nThe UT500 series electrical insulation testers are used to measure the insulation resistance of electrical equipment and household appliances during routine inspections. This is achieved by measuring the insulation resistance between electrical circuits or between circuits and earth (the equipment’s earth). The UT500 series can measure insulation resistance, AC voltage, low resistance, PI (polarisation index) and DAR (dielectric absorption). The individual units in the UT500 series differ from one another in their test voltage ranges (UT501A 100V to 1000V, UT501B 250V to 1000V, UT502A 500V to 2500V), maximum measured insulation resistance (UT501A 5GΩ to 5GΩ, UT502A 0MΩ to 20GΩ) and other parameters.\u003c\/p\u003e\n\u003cp\u003eThese testing and inspection devices ensure the correct operation of transformers, generators, high-voltage motors, power capacitors, power cables, surge arresters, circuit breakers, and electrical machinery and equipment. They are ideal devices for carrying out electrical maintenance and are manufactured in accordance with IEC 61010 and IEC 61557 standards.\u003c\/p\u003e\n\u003cp\u003eUT501B product specifications:\u003c\/p\u003e\n\u003cp\u003e- insulation resistance measurement from 0 MΩ to 5.5 GΩ\u003cbr\u003e\n- DC test voltage measurement 250V \/\u003cbr polarisation index and dielectric absorption\u003e\n- Low resistance measurement from 0 to 200Ω\u003cbr\u003e\n- AC voltage measurement in the range from 30 to 600V (50 \/ 60Hz)\u003cbr\u003e\n- Overload indication at \u0026gt;5.5GΩ\u003cbr\u003e\n- Backlit LCD display with automatic secondary display switching\u003cbr\u003e\n- 199\u0026gt; voltage and start-up functions\u003cbr\u003e\n- Red warning light\u003cbr\u003e\n- Powered by 6 x 1.5 V (AA) batteries\u003cbr\u003e\n- Low battery indicator\u003cbr\u003e\n- CAT III 600 V overvoltage protection\u003c\/p\u003e\n\u003cp\u003eTechnical specifications of the UT501B:\u003c\/p\u003e\n\u003cp\u003e- internal voltage measurement \/ insulation resistance \/ insulation resistance\u003cbr\u003e\n250V \/ 0.00MΩ - 5.5GΩ \/ 1.00mA - 1.10mA \/ 250kΩ\u003cbr\u003e\n500V \/ 0.00MΩ - 5.5GΩ \/ 1.00mA - 1.10mA \/ 500kΩ - 500kΩ - 0V0Ω \/M500. \/ 1.00mA - 1.10mA \/ 1MΩ\u003cbr\u003e\n- open-circuit voltage tolerance: +10%\u003cbr\u003e\n- short-circuit current of test voltage: approx. 2mA\u003cbr\u003e\n- insulation resistance measurement accuracy range: 0.00MΩ to 99.9MΩ: ± (3% + 5) \/ 100MΩ to 5.5GΩ: ± (5% + 5)\u003c\/p\u003e\n\u003cp\u003e- Polarisation index measurement for a criterion value measurement duration of 10 minutes \/⥥: 10 minutes PI \/⥥ 1 minute 4 \/ best, 4 to 2 \/ good, 2.0 to 1.0 \/ warning, ≤ 1.0 \/ poor\u003c\/p\u003e\n\u003cp\u003e- Dielectric absorption measurement for 60 sec \/ 30 sec\u003cbr\u003e\n- DAR value \/ criterion: ≥ 1.4 \/ best, 1.25 \/ 1, ≤ \/ 1 \/ 1. poor\u003c\/p\u003e\n\u003cp\u003e- low resistance measurement (circuit continuity) - range: 0.00Ω to 200Ω\u003cbr\u003e\n- resolution: 0.01Ω\u003cbr\u003e\n- Display reset for more accurate measurements: yes, ZERO button\u003cbr\u003e\n- open-circuit voltage before measurement: approx. 5.0 V\u003cbr\u003e\n- current during measurement: approx. 200mA\u003cbr\u003e\n- Accuracy: ± (2% + 3)\u003c\/p\u003e\n\u003cp\u003e- AC voltage measurement - range: 30 V to 600 V (50 \/ 60 Hz)\u003cbr\u003e\n- resolution: 1 V\u003cbr\u003e\n- Accuracy: ± (2% + 3)\u003c\/p\u003e\n\u003cp\u003e- 60 mm multifunctional LCD display. 34 mm, range 1999\u003cbr\u003e\n- Display backlight: option for white or red backlight during warning\u003cbr\u003e\n- automatic range switching: yes\u003cbr\u003e\n- buzzer: yes, high voltage indication\u003cbr\u003e\n- Automatic discharge of internal capacitance after measurement: yes\u003cbr\u003e\n- power supply: 6x alkaline (5V battery, low battery indicator)\u003cbr\u003e\n- Voltage drops below 7V\u003cbr\u003e\n- weight: 0.7kg (including battery)\u003cbr\u003e\n- product dimensions: 150 x 100 x 71mm\u003cbr\u003e\n- product colour: red and grey\u003cbr\u003e\n- factory calibration conditions: ambient temperature 23°C ± 5°C, humidity 45% to 75%\/year; calibration protocol recommended once a year. Ordered separately\u003cbr\u003e\n- operating conditions: 0 °C to +40 °C \/ relative humidity 85% or less\u003cbr\u003e\n- Storage conditions: -20 °C to +60 °C \/ relative humidity 90% or less\u003cbr\u003e\n- Altitude: max. 2000 m\u003c\/p\u003e\n\u003cp\u003eContents of individual package:\u003c\/p\u003e\n\u003cp\u003e- UT501B unit: 1 pc\u003cbr\u003e\n- test leads: 1 pair\u003cbr\u003e\n- Alligator clips: 1 pair\u003cbr\u003e\n- 1.5 V AA battery (LR6): 6 pcs\u003cbr\u003e\n- instructions: English, Czech, Slovak: 1 copy\u003c\/p\u003e\n\u003cp\u003eWholesale packaging:\u003c\/p\u003e\n\u003cp\u003e- standard quantity per box: 20 pcs\u003cbr\u003e\n- standard box dimensions: 500 x 380 x 330 mm\u003cbr\u003e\n- total weight of the box: approx. 20.9 kg\u003c\/p\u003e\n\u003cp\u003eManufacturer:\u003cbr\u003e\nhttps:\/\/www.uni-trend.com\/\u003c\/p\u003e","brand":"UNI-T","offers":[{"title":"Default Title","offer_id":57062175670603,"sku":"07720286","price":94.33,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/3323\/6043\/files\/07720286.jpg?v=1776539820","url":"https:\/\/solartech.eu\/products\/uni-t-ut501b-insulation-resistance-tester","provider":"SolarTech - Solar Inverters, PV Modules, Solar Accessories, ESS Battery","version":"1.0","type":"link"}