INSTRUMENTATION • ELECTRONICS
The AC leakage current clamps in action
LOOKING AT LEAKAGE CLAMPS
Discussing the similarities and diff erences between several AC leakage current clamps presently on the market
n any electrical installation, some current will fl ow through the protective ground conductor to ground, usually called leakage current. Leakage current most commonly fl ows in the insulation surrounding conductors and in the fi lters protecting electronic equipment. Leakage clamps measure the amount of leakage current fl owing down the protective conductor of an appliance or installation. Known for its expertise in high-end
I
AC/DC current sensors, Hioki also off ers a large variety of clamp meters, including three AC leakage current clamps. Before
going into the details of what makes each of these leakage current clamps unique, let’s look at what they all have in common. First, they all measure based on
the TrueRMS principle, and they can all measure not only AC leakage and diff erential currents but also AC load currents. Bluetooth functionality can be added to each of the clamps with Hioki’s universal Bluetooth transceiver Z3210, allowing the clamps to communicate with smartphones and tablets running Hioki’s free “Gennect Cross” app. Hioki’s clamp meters are not
only designed in Japan, but they are also made in the company’s own factory’s in Japan’s Nagano prefecture.
REVIEWING THE DIFFERENCES So, let’s look at the diff erences between each of Hioki’s clamps, starting with the CM4001 leakage current clamp. With a height of just 16cm from top to bottom and jaws that have been engineered to make them as narrow as possible, you can use them even in the most confi ned spaces while
The L9097 adapter cable for the CM4003
www.engineerlive.com 17
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44
