Signal conditioning
sil-2-compliant pulse fRequency conditioneRs and isolated standaRd signal conditioneRs
Many systems installed on rolling stock need reliable information about the current speed – from braking systems to drives to door locks. This information is usually provided by speed encoders installed on the vehicle axles. Up until now, additional encoders had to be installed, if other systems also required speed data. This proves difficult sometimes, due to space limitations at the axles. And of course, the installation incurs additional costs. Introducing the ProLine P 16000 pulse frequency conditioner, Knick Elektronische Messgeräte now provides an economical solution, which can reliably and accurately reproduce encoder signals. The SIL-2-compliant conditioner enables functionally safe decoupling of speed sensor signals as well as of standard signals. It conver ts these signals into galvanically isolated, analogue 0/4…20
mA or 0…10 V standard signals that can be directly transmitted to the controller or other subsystems. The pulse input reproduces the measuring ranges 0...500 Hz or 0... 20 kHz with a ≤0.2 per cent full scale accuracy. The signal inputs are designed according to the SIL 2 safety integrity level so that there can be no unwanted impact on the signal source, which could distor t measured values. Since pulse signals are directly conver ted into standard signals, there is no need for additional pulse counting inputs in the controller. Fur thermore, safety-related standard signals from existing measuring circuits can be picked up and transmitted as electrically isolated signals. P 16000 complies with all standard requirements for use on rolling stock. It is highly resistant to harsh environmental conditions. Proper function of the device is unaffected by electromagnetic interference, extreme temperatures, vibrations, or shock impacts. The conditioner complies with current fire regulations for rolling stock according to EN 45525- 2 and UL61010.
www.knick.de
4-20ma signal conditioning unit foR tempeRatuRe sensoRs
Monitran’s MTN/8006TC temperature signal conditioning unit conver ts the voltage output from a temperature sensor to an industry standard current output. The MTN/8006TC
accepts a 10mV/°C temperature input in the 0–100°C range and conver ts it to a 4–20mA output propor tional to temperature. The signal can be read by PLCs for example or by Monitran’s MTN/5032 condition monitoring system, which can also accept multiple inputs from Monitran’s wide range of accelerometers. Available in a universal DIN rail form factor, the unit measures
62.5mm x 63.5mm x 18mm and requires a 24V DC power supply. The 4–20mA signal is much more robust than the output direct
from the temperature sensor and is capable of being transmitted over long distances without being degraded by interference from electrical machinery for example.
www.monitran.com 64
optimise pRoductionwith dynamic signal conditioneRs
HBM’s ClipX is a dynamic signal conditioner that not only amplifies signals and transfers them to the control unit, without any interference but also completes preliminary calculations and summaries, to reduce the load on higher level controls. This means that the innovative new ClipX is able to accomplish some of the tasks that would otherwise be taken on by the higher-level controller. Suitable for monitoring and measuring tasks in test benches, machines
and production plants, ClipX can be used as a standalone device or as part of a system of networked devices. Featuring a modern automation interface, which can be easily adapted to suit any measurement task, ClipX can be used to acquire force, torque and other quantities with a measurement accuracy class of 0.01. Controlled through a modern web interface, the responsive design of
ClipX ensures optimal viewing across all devices. Clear and intuitive, the latest signal conditioner from HBM comes complete with all the latest functions and is also equipped with an integrated health monitor, which provides device diagnosis and enables faults to be quickly and easily detected and fixed by remote control at an early stage. Particularly suitable for applications with a high degree of automation,
the new ClipX from HBM assists with efficient production and ensures that customers in the industrial automation sector are equipped and ready for the digitalisation of production processes.
www.hbm.com March 2019 Instrumentation Monthly
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 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80
