The Extech Digital Megohmmeter is a 1000V digital tester with an automatic three minute test.
The Extech Digital Megohmmeter offers three test voltages of 250V, 500V, and 1000V with insulation resistance to 2000MΩ and overload protection. The safety power lock enables hands free operation for 3 minute tests for continuity measurements to 200Ω and voltage to 600VAC. An automatic discharge will start testing when the "press to test" button is released. A neckstrap is provided for convenient operation.
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|380360-NIST||Digital megohmmeter, NIST traceable||
Usually ships in 1-2 weeks
For the past decade or so, Dr. Bernard Laval , a civil engineer with the University of Northern BC in Canada, has been researching Quesnel Lake , a large, deep lake with unusual water dynamics. This allowed him an unusually high level of insight into much of what makes the lake tick—and when Mount Polley Mine (MPM) experienced a breach in 2014, causing materials to be deposited into Quesnel Lake, he already had a sense of what the lake's waters looked like.
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Since the 1980s, scientists from the Vermont Department of Environmental Conservation (VT DEC) have been sampling water from acid-impaired ponds and lakes and tracking data related to acidity. The line of inquiry began in response to concerns about acid rain, but DEC scientists now find that the long-term monitoring is not only proving the efficacy of the Clean Air Act but also improving local water quality.
Guarding the environment in Vermont
Rebecca Harvey is a VT DEC scientist, and monitoring the state's waterways for acidity and other problems falls in part to her. Dr. Harvey corresponded with EM about this work.Read More