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 EtherCATģ 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.
Californiaís plan to mandate an electric vehicle market isnít the first such undertaking and certainly wonít be the last. But as the Golden State ratchets up for its next big step toward zero-emission vehicle status in 2018, it might be wise to consider a bit of history.
A customer who was thermal printing strip steel had a problem: When the strip's speed increased, the thermo printer would catch fire. When he set a flame to a piece of the strip, he couldn't get it to burn. What was the problem?