ADVERTORIALS
PIEZORESISTIVE OEM PRESSURE TRANSMITTERS T
he KELLER D-line boasts a unique combination of highly robust industrial pressure transducers
and the popular I2C interface. This successful series has undergone further development and an intrinsically safe version is now available too. The new D Ei series is approved for gas group II appli - cations and can be used to measure absolute and relative pressures in zone 0.
Various possible combinations for all manner of
different applications With its modular structure, the series permits numerous com binations, making it the ideal component for customisations using an I2C interface:
• OEM pressure transmitters for fitting directly into a system’s existing drilled holes: 4 LD Ei...9 LD Ei
• OEM pressure transmitters with ultra-flexible pressure connection for screwing into existing pressure systems: 20 D Ei
• Pressure transmitters with a pressure connection and cable gland: 21 D Ei, 23 D Ei • Level sensor for measuring the contents of a tank up to a maximum fill level of 3 m: 26 D Ei
Keller u 0845 6432855 u
www.keller-pressure.co.uk
MEGA_BRIDGE BY CHURCHILL CONTROLS M
ega_Bridge adds flexible and fully featured internet protocol (IP)
connectivity to the well-established Mega_Link family of Telemetry & Control units used to pass two-way instrumentation, measurement and control data between sensors, equipment and industrial plant.
TELEMETRY & CONTROL • POINT to POINT • POINT to MULTI-POINT • IOT Architecture • Flexible Communications • UHF License Free Radio • ETHERNET, Wi-Fi • 3G/4G mobile networks
Sensor & Data Interfaces • Volt-Free Digital I/O • 4 - 20 mA Analogue I/O • RS232/RS485 Serial
• Built-In Security VPN with AES256
• Use with ADSL modem for leased line replacement
Mega_Bridge can communicate on a closed LAN or across networks and sites via Amazon Web Services, fully administered by Churchill Controls. This enables important security features using TLSv1.2 for authenticated and encrypted communications channels.
Churchill Controls u 01344 750233 u
www.churchill-controls.co.uk
should always be under control. The permanent measurement of temperature and humidity in the switch cabinet is an important element in preventing condensation, which leads to corrosion and thus failure of components. STEGO's CSS 014 smart sensor combines a sensor, interface and transmitter all in one compact device. It measures ambient temperatures with high sensitivity within a range of -40 to +60°C while keeping a close eye on the relative humidity range from 0 to 100% RH.
The CSS 014 transmits the data it acquires as a standardised analogue 4-20 mA signal. This signal users can further process and convert the measured values within a control or monitoring unit, e.g. a PLC. Due to high measuring accuracy and signal strength connection wires with a maximum length of 30m can be used.
Stego u 01372 747250 u
www.stego.de
SMART SENSOR FOR CONDITION MONITORING C
ondition Monitoring is all about paying attention to detail. The key parameters within the switch cabinet
They can even be mounted outside in direct sunlight with the daylight viewing option and are sealed to IP65 as standard.
Uniquely, the INT5 takes a snapshot of your cabling parameters when being installed and looks for changes, such as corroding connections, noisy connectors etc and can warn users of the nature of the developing problem before becoming critical.
Meters can have up to 4 alarm relay outputs, high precision analogue output of 4-20mA sourcing or sinking or bipolar 0-10V, plus a wide choice of serial comms.
They also have multiple user configurable logic inputs for Hold, Tare, Reset, Print, Peak/Valley, Nett/Gross etc.
Power is 11-30V DC or 95-265 V
London Electronics u 01767 626444 u
www.london-electronics.com
One meter can be kept in stock, and is easily set to accept and measure any one of these signal types, with full floating point scaling and active filtering:
• Load Cells • Thermocouples • 3 and 4 wire PT100 sensors • Pressure sensors • Humidity sensors • 3 wire potentiometer input • mV from DC shunts • RPM and Frequency pulses • Totalising pulses • Averaged production rate • 4 wire precision resistance measurement • Ampere Hours for plating and charge measurement • 4-20mA 2 wire , 3 wire and 4 wire • 0-10V and 1-5V DCExcitation allows up to 4 x 350 load cells to be connected in parallel, and a unique cable compensation system allows for zener barriers and long cables.
Designed and built in the UK, the INT5 offers a wide range of formats, from 1/8 DIN panel meter format to large wall mounting versions for showing important measurements to the whole factory floor.
INNOVATIVE NEW RANGE OF DIGITAL PANEL METERS AND LARGE DIGITAL DISPLAYS
I
f you like your measurement instrumentation to be easy to use, reliable, accurate and UK made, a new range of digital panel meters and large displays from London Electronics will certainly be of interest.
High precision measurement and control of almost any physical variable is standard in the new INT5 range, which has unique benefits, never before seen in this price range. Elegant ease of use, precision, stability and versatility are key benefits.
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February 2019 Instrumentation Monthly
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