fundamental questions: M

1. What is calibration and why should I calibrate? 2. What are the benefits of balance calibration? 3. How often do I have to calibrate my balance and what are the risks of not calibrating? 4. Which tolerances apply to balance calibration? 5. Is there a difference between calibration and adjustment? 6. My scales are legal for trade, do I still need to calibrate? 7. Why is measurement uncertainty so important? 8. How do I ensure accurate weighing results? 9. Why is it a risk to use non-calibrated Instruments? 10. Why is METTLER TOLEDO – The Right Calibration Partner? 11. What is the correct way to handle test weights? 12. Is routine testing needed between calibration intervals?

Behind each question, you will find a selection of white papers, guides and webinars relating to the calibration of your weighing equipment.

METTLER TOLEDO  0116 234 5043 


TR30RDM series Medically certified external PSU, comprising of 6 models with interchangeable AC plugs and up to 30W output power. The AC-DC wall mount power adapter features 2xMOPP, Class II and is EN60601-1-11 approved for Home Healthcare Applications. The series complies with FCC CFR47 Part 18 Class B and EU CoC Tier 2 & DoE Level VI efficiency standards. Average efficiency is 88% and the TR30M has an operating temperature of -25°C to


70°C. It offers an input range of 80 ~ 264VAC and output voltages 5V, 9V, 12V, 15V, 18V & 24V, and meets IP22 standards. The TR30RDM also complies with EN55011, EN60335 -1 and has a low leakage current <50uA, continuous short circuit protection, over voltage protection and no load power consumption <75mW. For more information about the full range of the TR30RDM please contact

Components Bureau

Components Bureau  01480 412233 


the compact and stylishly designed SP- T11 is a 2” semi-rugged portable version competitively priced without sacrificing performance and build quality. The printer can withstand a drop onto a hard surface from a height of 1.2M and covered communications and power ports prevents the ingress of moisture, dust and dirt. Flexible communication is provided by Bluetooth plus hardwired USB or RS232 interfaces. A print speed of 100mm/sec and a high resolution of 8 dots/mm (203dpi) provides almost instantaneous high-quality text, graphics and barcode print outs. A long-life lithium Li-on battery pack delivers non-stop printing for over 90 metres on a single charge and has a standby time of over 15 days. The printer is supplied with a belt pouch, comms cable, a UK/EU/US AC adaptor/charger and a paper roll.


Craft Data Limited  01296 332000 

raft Data are pleased to introduce their latest mobile thermal printer,

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 ¼” (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 

omponents Bureau announce availability of the new Cincon

ETTLER TOLEDO has developed a library of knowledge and resources to answer these



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.

Instrumentation Monthly October 2020


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