Keller has a complete range of pressure transmitters for use in hazardous areas. These intrinsically safe transmitters offer measurement ranges of between 0,2-1000 bar and can be used for measurements of all types in areas subject to explosion hazards in Group II (Gas). Individual types are also approved for Group I (Mining) and Group II (Dust).
Common features of all Y-line pressure transmitters include low error with correspondingly high measurement accuracy. Thanks to the integrated temperature sensor and an additional digital circuit, the range of operating temperatures can be divided into as many as 120 sections with a width of 1,5 Kelvin. During factory calibration, a mathematical model is used to calculate individual compensation values for TK zero point and TK amplification for each of these sections; the values are then stored in the transmitter. During operation, these values are fed into the analog signal path according to the temperature, without reducing the 2 kHz signal processing dynamic. A relevant total error band for measurement purposes of ±0,8 %FS can therefore be attained over the typical temperature range of -10 to 80°C. This includes all error sources, from linearity to range tolerance.
As an additional feature, Keller’s X-line pressure transmitters (Series 30) offer microcontroller-based electronic evaluation to ensure maximum accuracy. Each transmitter is gauged across the entire pressure and temperature range. This measurement data is used to enable correction of all reproducible errors. The user may specify a choice of compensated temperature range at time of purchase, depending upon the application.
A varied selection of structural designs, electrical signals and mechanical connection formats guarantee that these intrinsically safe pressure transmitters can be used for an extensive range of applications.
Users can also choose between 3-wire technology (0-5 V/0-10 V) or 2-wire technology (4-20 mA). On the high-precision pressure transmitters and submersible sensors in Series 30 an RS-485 interface is available in addition to the analogue output.
Sitrans P320/P420 pressure transmitters with PROFINET over Ethernet-APL
Pressure Measurement & Control
Siemens’ Sitrans P320/P420 pressure transmitters are now available with PROFINET over Ethernet-APL, enabling data transmission at 10 Mb/s over cable lengths of up to 1 000 m with built-in intrinsic safety for use in hazardous areas.
Read more...Pressure sensor for robust measurement and clear communication ifm - South Africa
Pressure Measurement & Control
ifm’s G1/2 PF pressure sensor monitors highly viscous or abrasive media directly on the system, with a robust ceramic measuring cell, a rotatable display and a flush design that prevents clogging.
Read more...Precision solutions for extreme conditions VEGA Controls SA
Pressure Measurement & Control
VEGA’s VEGAPULS radar sensors, VEGABAR pressure transmitters and VEGASWING level switches deliver reliable measurement in chemical storage environments handling corrosive acids, alkalis and volatile hydrocarbons, with ATEX and IECEx certification for hazardous zones.
Read more...The hydrogen economy is moving from concept to industrial reality VEGA Controls SA
Editor's Choice Pressure Measurement & Control
Scaling the hydrogen economy requires safe, efficient and tightly controlled processes across generation, storage, distribution and end use, underpinned by accurate instrumentation for pressure, temperature, level and flow measurement.
Read more...VEGA pressure instrumentation supports resilient water network management VEGA Controls SA
Pressure Measurement & Control Flow Measurement & Control
As rapid urbanisation and climate pressures strain water networks across Africa, accurate real-time pressure monitoring has become a strategic necessity. VEGA’s pressure instrumentation helps utilities reduce losses, protect infrastructure and meet sustainability targets.
Read more...Field calibration made easy Instrotech
Maintenance, Test & Measurement, Calibration
Instrotech’s locally designed and manufactured Calog calibrator range feature a rugged IP54-rated housing, backlit display with data logging via SD card, and a lithium-ion battery with approximately eight hours of run time.
Read more...Groundwater level measurement using LoRa module Instrotech
Level Measurement & Control
Monitoring groundwater levels across large industrial sites is critical. Salzgitter Digital Solution was tasked with developing a fully automated and digital monitoring system using Long Range Wide Area Network technology.
Read more...Infrared solutions for glass manufacturing challenges Instrotech
Temperature Measurement
In the glass industry, infrared temperature monitoring is crucial for maintaining product quality and process efficiency. Instrotech has infrared sensors and cameras which provide non-contact temperature measurements, making them ideal for these high-temperature environments.
Read more...Embracing digital precision in instrument manufacturing SA Gauge
Pressure Measurement & Control
In modern instrumentation manufacturing, precision is no longer limited to measurement alone. One area undergoing notable change is the printing of instrument plates and branded components.
Read more...Senix sensors provide flood warnings Instrotech
Flow Measurement & Control
To create the world’s most sophisticated flood monitoring and forecasting system, the US State of Iowa’s Flood Centre (IFC) uses more than 200 Senix ToughSonic 30 and ToughSonic 50 ultrasonic sensors to measure water levels in streams across the state.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version