ADVERTORIALS
last 10 years we have had a number of our standard products assessed against IEC 61508 and achieved SIL 2 ratings for virtually all of those submitted.
SIL RATED INSTRUMENTATION L
ee-Dickens has been manufacturing analogue instrumentation for more than 55 years. Over the
SIL Ratings: Safety Integrity Levels refer specifically to the probability of failure on demand (PFD) – or to what extent the end user can expect his process to perform safely, and in the case of failure, fail in a safe manner. By selecting devices that are rated for use within a desired SIL environment, end users can optimise their processes for risk and have reliability data already calculated and available for use.
The following have all achieved SIL 2 ratings and Assessment Summaries are available on request.
Trip Amplifiers -
BM100 and BD100 Single Level Trip Amps BM120 and BD120 Dual Level Trip Amps
BM9431 and BD9431 Single Level Trip Amplifiers with built in Out of Range Alarms compliant with NAMUR NE43
BM9432 and BD9432 Dual Level Trip Amplifiers with built in Out of Range Alarms compliant with NAMUR NE43
Lee-Dickens Ltd 01536-76015
www.lee-dickens.co.uk
OKW'S NEW LASER MARKING SERVICE FOR ELECTRONIC ENCLOSURES
E
lectronic enclosures manufacturer OKW has added new laser marking technology
to its wide range of customisation services. Laser marking of legends and logos is
waterproof, smudge-proof and durable. It is ideal for very small machine-readable markings such as sequential QR codes or barcodes. Consecutive numbering can be carried out quickly, easily and cost effectively. Using a laser to mark an enclosure
provides a more resilient solution than printing because it physically changes the colour of the surface. Dark and light plastic parts turn grey at the point of marking. Suitable materials for laser marking include ABS, ASA+PC and ASA+PC-FR,
polycarbonate, polyamide (and PA GF) and aluminium. Depending on the materials involved, the following enclosure colours are good for high-contrast laser marking: off- white, pebble grey, light grey, lava and black. OKW continues to offer photo-quality digital printing (up to 1,800 x 1,800 dpi) on
surfaces with a height difference of up to 2.5 mm. OKW
01489 583858
www.okw.co.uk
PROVING UNITS VERIFY SAFETY AND CALIBRATION IN ONE
T
he latest PDS and PDSX Series of proving units from Martindale Electric are smaller, lighter
and have new options for calibration checking test equipment. The new PDSX proving units enable contractors
and maintenance teams to safely and simply prove the operation of voltage indicators, two pole testers and test lamps plus common 18th Edition tester functions. The PDSX Series includes an additional CALCHECK feature
for verifying the calibration consistency of multifunction installation testers providing confidence in the performance of all essential test equipment before and after measurement. CALCHECK makes it easy to verify the insulation and low resistance
ranges on 18th testers on-site, making it suitable for identifying potential calibration issues with test equipment prior to certifying a new wiring installation or carrying out a condition report. This is a valuable procedure recognised by electrical contractor assessment bodies to ensure reliable results and avoid unnecessary and expensive retests.
Martindale 01923 441 717
www.martindale-electric.co.uk
MX FLOW METERS OFFER VERSATILITY
AND DURABILITY IN ALL ENVIRONMENTS M
acnaught have added several new models and accessories to their MX Oval Gear Flow meter range for hazardous environments as well as safe environments.
Oval gear flow meters measure the volumetric flow rate of a moving fluid, the two rotating oval gears divide the material into fixed, metered volumes. They have been widely recognised as one of the most versatile, accurate flow measurement solutions that are not affected by variations in temperature, viscosity, or pressure. Maintenance on these meters are minimal too because the moving parts inside the meter body are limited to the pair of robust oval gear rotors.
Models are constructed from aluminium, PPS and Stainless Steel and are available either threaded or flanged, offering a choice of construction materials ensures effective use in industrial applications with a wide range of fluid viscosities.. The MX Ex series offers an ideal solution for applications requiring accurate flow measurement in hazardous zoned areas. An inclusive range of M-Lock compatible rate, total and batching displays with outputs.
Macnaught is an Australian-owned designer and manufacturer of flow meters and fluid transfer instruments were first established in 1948, meaning over 70 years of flow experience. With their oval gear technology and revolutionary modular design, Macnaught’s MX Intrinsically Safe Industrial Meters are offering their clients their most advanced positive displacement oval gear flow meters. The MX Ex are ATEX approved, rated Ex ia IIC (Class 1 Zone 0), approved CSA and FM and manufactured from robust stainless steel (316). This allows oval gear technology to be used in applications requiring precise flow measurement in hazardous areas.
MX Ex flow meters are ideal for the precise transfer or dispensing of thin or viscous fluids, corrosive chemicals and non-conductive liquids in environments where there is the potential of exposure to flammable gases, or vapours. This operating principle means that the meters do not require flow conditioning or straight pipe runs and can be used in installations where space is limited without a detrimental effect on performance. The MX-Series meters can also be easily and efficiently dismantled, serviced and reassembled whilst still in the line, and without the need for any special tools or training.
MX Ex series are available in $” (8mm) up to 2” (50mm) with further M-Series model options to 4” 100mm and flow ranges from 0.005 to 1200 LPM and an accuracy of #0.5%. They are equipped with Macnaught’s versatile M-Lock mounting system, allowing the pulsers and displays to be installed and exchanged in less than 15 seconds. Therefore, these oval gear flow meter displays can be replaced without having to disassemble the meter or remove it from service. A quarter turn is all that would be required to change pulse modules or replace this with an LCD Screen.
Bell Flow 01280 817304
www.bellflowsystems.co.uk
January 2020
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