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Karya Mandiri Instrument indonesia adalah supplier peralatan laboratorium baik eletronik maupun mekanik, serta berbagai macam instrument measurement, dengan didukung dari berbagai macam merk dari negara negara Eropa, US, dan beberapa negara di Asia seperti Korea, Japan dan Taiwan. Instrument yang kami sediakan seperti : Anemometer, Analitical Balance, Spectrophotometer, pHmeter, Laser survey, Micropipette, Peristaltic Pump, Flame photometer, Water bath heating cooling, Colorimeter, Water Strirer, Viscometer. Freezers, Refractometer, Polarimeter, Sound Level meter, Tachometer. Dll
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The Clamp-on Ground Resistance Tester Model 3711 measures ground rod and small grid resistance through any season, without the use of auxiliary ground rods. Clamp-on Ground Resistance Testers are used in multi-grounded systems without disconnecting the ground under test. The Model 3711 simply clamps around the ground conductor or rod and measures the resistance to ground. By performing measurements on intact ground systems, the user also verifies the quality of the grounding connections and bonds. Resistance and continuity of grounding loops around pads and buildings may also be measured. Specifications: Resistance Measurement Frequency : 2403Hz Current Measurement Frequency : 47 to 800Hz Current Overload : OL displayed above 29.99Arms Power Source : 9V Alkaline battery ( IEC 6LF22 or NEDA 1604A) Battery Life : Typical: 8 hours or approx. 1000 measurements of 30 seconds Dimensions : 9.25 x 3.94 x 2.17 " ( 235 x 100 x 55mm) Weight : 2.2 lbs ( 1kg) Jaw Window Diameter : 1.25 " ( 32mm) Jaw Opening : 1.38 " ( 35mm) U.S. Patent : No. 362, 639 UL File : No. E192383 Operating Temperature : 14° to 131° F ( -10° to 55° C) Operating Humidity : 10 to 90% RH @ 14° to 104° F ( -10° to 40° C) , 75% RH @ 131° F ( 55° C) Storage Temperature : -22° to 158° F ( -30° to 70° C) Safety Rating : EN 61010-2-032 ( Class 2) Double Insulation Double Insulation : Yes
