CAN bus-based precision measurement amplifier
DEWETRON now offers a complete range of CAN-based measurement modules for tests in challenging environments. The CPAD2 module series offers outstanding cost-effectiveness, proven signal connections, extensive mounting options, and last but not least simple integration into existing measurement systems and SPS controls. Built-in signal conditioning permits direct connection of voltage, current, thermocouples and resistance thermometer (RTD) signals.
All modules in the series are mechanically and electrically extremely robust. Module housings are milled from a solid block of aluminium, and the electronics are isolated, from channel to channel as well as from channel to bus, supply and housing.
Multiple modules can be daisy-chained to build a multichannel distributed network. The CAN signal and 7 to 40 VDC module supply run through the single connection cable. Thanks to the optimised power consumption of just 0.5 watts per module, modules can be set up at distances of several hundred metres.
Each module has 8 measurement channels with an own 24 bit A/D converter per channel. The design ensures flexibility and high precision, for example 0.02% for voltage inputs or typ. 0.25°C for temperature inputs. Mounting possibilities extend from simple cable-tie attachment to bolting onto a panel to top-hat rail mounting. The modules are also stackable – each one has two loss-proof Allen screws for attachment to another module, so that any number can be assembled into a stack using just an Allen key. Signal connection is by standard plug connectors. Module design takes into account the most frequent user requests; for example, voltage modules are available with SUB-D or Lemo connections, while the thermocouple module is available with mini-TC or likewise Lemo connections.
CPAD2 series modules are easy to integrate into any software package with CAN support, so they can quickly be installed in existing measuring systems with CAN bus interface.
For new systems, DEWETRON offers the very easy to use DEWESoft data acquisition software, which has garnered multiple awards.
Typical applications for the DEWETRON CPAD2 series modules are automotive measurements such as in the engine compartment, distributed monitoring in production facilities, multi-channel measurements for commissioning, signal conditioning for SPS and much more.
