has released the new EL3681 and KL3681 terminals. By
integrating digital multimeters directly into I/O nodes, users can expect a
streamlined and low cost alternative to stand-alone digital multimeters. The
modules provide high precision and simple, high-resistance measurement from 300mV
to 300V and cost just $305.00 (U.S. list) each.
the digital multimeter terminals with fieldbus interface for measuring current
and voltage, measured values can be processed directly in the I/O system or by
the master controller. These dynamic measuring terminals are available for both
the Beckhoff Bus Terminal system, which offers support for most major
fieldbuses as well as for the high performance EtherCAT® Terminal system.
industrial systems with the Beckhoff KL3681 (Bus Terminal) and EL3681 (EtherCAT
Terminal) significantly increases flexibility thanks to the wide input range
and automated measuring range selection.
measuring applications, the expected voltage is often not known during the
planning phase. Automatic adjustment of the measurement range simplifies use
and reduces stock levels. Beckhoff's digital multimeter terminals measure dc
and ac voltages; in the case of ac voltage, the effective (RMS) value is
high immunity to interference is achieved via the complete galvanic isolation
of the electronic measuring system and a measurement interval of typically 200
ms. The measured result is equivalent to that of a good hand-held multimeter,
but the I/O Terminals also have an interface to most major fieldbuses via which
it can be read out and parameterized.
An envelope is a common packaging item, usually made of thin flat material. It is designed to contain a flat object, such as a letter or card.
Traditional envelopes are made from sheets of paper cut to one of three shapes: a rhombus, a short-arm cross, or a kite. These shapes allow for the creation of the envelope structure by folding the sheet sides around a central rectangular area. In this manner, a rectangle-faced enclosure is formed with an arrangement of four flaps on the reverse side.
During a teardown of the iPad Air and Microsoft Surface Pro 3 at the Medical Design & Manufacturing Show in Schaumburg, Ill., an engineer showed this "inflammatory" video about the dangers of maliciously mishandling lithium-ion batteries.
The Window Watcher stops the burglar before he does damage or enters the house. House alarm service companies set off alarms and call the service only after the burglar has damaged and entered the house.
If you’re designing a handheld device or industrial machine that will employ a user interface, then you’ll want to check out the upcoming Design News Continuing Education Center course, "Engineering Principles Behind Advanced User Interface Technologies.”
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.