Polarization
property of transverse waves which specifies the geometrical orientation of the oscillations.
See Also: Resistivity & Induced Polarization, Resistivity, Polarizers
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Product
Digital Leakage Current Tester
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Educated Design & Development, Inc.
Fast - All operator controls are located on the front panel to expedite testing. The entire test can be performed in a matter of seconds! Pays for itself in time and stress savings. Versatile - Measures Leakage Current in accordance with UL, CSA, EN, and IEC/ International Standards. Includes ability to perform open neutral, open ground, and line polarity forward/reverse test conditions. Adaptable - Universal rear panel receptacle allows for testing products with any plug configuration. Accurate - True RMS meter accurately measures both sinusoidal and non-sinusoidal waveshapes. This is important when testing products using a switch mode power supply which can generate non-sinusoidal leakage currents. Calibrated, traceable to NIST. Flexible - A front panel switch permits testing either through the power cord of the product under test, from surface/ patient connection-to-ground, or from surface/ patient connection-to-surface/ patient connection. Portable - Lightweight, with integral handle. Other Features - Product Ground Switching (grounding conductor maintained to device under test when not measuring leakage). Automatic front receptacle disconnect when configured in the 240V test mode (prevents inadvertent connection of 120V when configured for 240V operation). Proven - These are the only leakage current testers designed and supported by Product Safety experts. That is part of the reason why they have become the standard in the industry. Full technical support by experienced safety engineers.
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Product
Digital Panel Meter
ST-312V (ST-312mV)
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Standard Electric Works Co., Ltd
● 3 1/2 digit liquid crystal display.● 200mV and 2V full scale input sensitivity.● Single Battery operated 9V supply or ±5V DC power supply (Dual supply).● Built-in low battery indication and automatic polarity indication.● Decimal point selectable.● Low power dissipation Typically less than 20mV.● High input impedance (> 1M ohm).● Guaranteed zero reading for 0 volts input on all scales.● True differential input or single-ended input.● Self mountable with optional mounting bezel.● Low cost high performance.● EN 50081-1 EN 50082-1 EN 55022 EN 61000-4-2 IEC 801-3
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Product
Low Impedance Voltage Tester
K-60
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K-60 KNOPP VOLTAGE TESTER for AC and DC with polarity indicator. Double safety indication is by solenoid and by neon lamp. Knopp’s K-60 Low Impedance Voltage Tester (Cat. 14460) offers portability and ease of use with full protection. These exceptionally versatile and useful tools are backed by a reputation for quality in the design and manufacturing of electrical test equipment.
