Tag Archives: Calibration

Measuring in clean rooms – Hands on with the Rotronic CRP5

For many years Rotronic products have been widely used in the monitoring and control of clean rooms, however more often than not our products are found out of sight quietly performing their measurement tasks away from areas with strict requirements for cleanliness demanded by modern clean rooms.

In the past few months Rotronic have launched two new clean room panels that are as the name suggests designed specifically for use within clean room environments.

Our flagship product in the field is the CRP5 which we will take a look at first.

crp-5_pfad
CRP5 – Clean room From Rotronic

The CRP5 is a comprehensive clean room panel designed specifically for the requirements of modern clean rooms. Once installed the unit provides virtually no areas for dust to collect and the industrial glass front is extremely resistant to chemicals. With a fully configurable colour screen it is a stylish looking device!

CRP1a
Unpacking the CRP5, the glass front, colour display and stainless steel fittings make the CRP5 elegant, easy to clean and functional

Internally the CRP5 delivers some serious capability, providing potentially a solution for all your clean room measurement and monitoring requirements. Including;

  • Differential Pressure via internal diaphragm sensor (measurement via rear ports and front ports for flexible instalation and calibration).
  • Interchangeable humidity and temperature sensor.
  • Two fully configurable analogue inputs (for particle counters, lux meters etc)
  • Two configurable switch inputs (for pressure or door switches etc)
  • 6 configurable relays (for alarm triggers)
  • Digital connectivity via RS485 and Ethernet (Modbus or direct connection to Rotronic HW4 software)

A unique feature of the CRP5 is the optional flush mount humidity probe. The probe is locked into place through the use of magnets and can easily be removed for cleaning or calibration. An optional rear mount connection is available for Rotronic HC2 humidity and temperature probes should you wish to monitor ducts or spaces remote to the CRP5 itself.

CRP2
The unique removable Humidity and Temperature probe for ease of cleaning and calibration

The configurable colour display shows alarm conditions which can be acknowledged via the front panel. Alarms can be used to trigger relays associated with audible and larger visitual alarms. Interaction with the CRP5 is via four optical buttons –  their use is completely unaffected if operators are wearing protective gloves or not (unlike capacitive interfaces).

CRP3
Optical buttons can be used easily even when wearing gloves!

As an FDA and Gamp5 compliant device the CRP5 is a safe choice for regulated industries. The instrument can be used with 3rd party systems via its analogue outputs or industry standard Modbus TCP / RTU communication. Alternatively the CRP5 can be connected to the Rotronic HW4 software package to provide a one stop solution for monitoring, control and alarming. Pharmaceutical validation services as well as ISO 17025 (UKAS) calibrations are available from Rotronic if required.

To get some more detailed information about our clean room solutions give us a call or visit our website… Rotronic Website and CRP5 Datasheet

Next time we will look at the Rotronic CRP1 a dedicated temperature and humidity clean room panel for  applications with slightly simpler requirements but still demanding a clean installation  and high accuracy measurements!

crp1_side
The CRP1 – Humidity and Temperature measurements in clean rooms.

Dr Jeremy Wingate
Rotronic UK

Rotronic training course schedule 2016

We are pleased to announce our latest training course schedule for 2016. Courses include in partnership with Dave Ayres from Benrhos Ltd our practical 3 day temperature, humidity and dew point calibration and measurement uncertainty courses. In addition, for those seeking greater depth we are running dedicated courses on measurement uncertainty and ISO 17025 run by Lawrie Cronin and Dave Ayres

Temperature Humidity and Dew Point – Measurement, Calibration and Uncertainty

8th – 10th March :: 12th – 14th July :: 15th – 17th November
– Three day course at Rotronic UK offices and UKAS laboratory
– Practical applied knowledge and best practice
– Max 8 attendees to ensuring tailored content

Measurement Uncertainty for Laboratories and Plant

6th – 7th September
– Two day course at Rotronic UK offices
– Detailed knowledge for laboratory owners or process managers

Setting up and working with ISO17025

8th September
– One day course at Rotronic UK offices
– Ideal for ISO17025 lab managers or those looking to apply

For further information please do not hesitate to contact us.

 

Pharmacy Business Case – MEDICINES NEED WATCHING – CLOSELY!

Business Case BannerColleagues from our Swiss based HQ just outside Zurich have shared with us a great example of an increasingly important application based around the monitoring of medicines in typical high street pharmacies. Pharmacies may look like they simply store medicines on normal shelves but most drugs require strictly controlled and monitored conditions to ensure they reach us in perfect condition! Read on to discover more…

Medicines are sensitive products. Moisture or excessively high or low storage temperatures, can impair their quality. Incorrectly stored medicines lose their efficacy, leading to significant health risks. Correct storage is therefore vital, offering as it does the guarantee that medicines remain safe and efficacious and retain their high quality right up to their expiry date.

Meeting GDP/GMP requirements in pharmacies

The storage of medicines is legally regulated by GDP (Good Distribution Practice) Standard 9.2 and is inspected by the responsible authorities on site.

Insulins and other liquid antibiotics for instance must be stored in medicine refrigerators at a temperature between 2 °C and 8 °C. A temperature range of 15 °C to 25 °C applies to the vast majority of other medicines.It is compulsory to document the storage conditions of all medicines.

To help fulfil the legal requirements, Rotronic has launched the new HL-1D data logger – a convenient, precise, reliable logger that is virtually tailor-made for a medicinal environment.

Rosengarten Rotpunkt pharmacy

The HL-1D data logger has undergone exhaustive testing
under real-life conditions in the Rotpunkt Rosengarten
pharmacy. With its simple handling and remarkable price-performance ratio, the logger offers great potential for any pharmacy.

The Rosengarten Rotpunkt pharmacy is deeply rooted in the community of Bassersdorf, Switzerland and has been at its present location since 1985.

In 2011, Mr. Ivan Mihajlovic took over the directorship and today runs the pharmacy with a total of 10 employees.

Mr Ivan Mihajlovic
Mr Ivan Mihajlovic

“The quick evaluation of the data and the understandable visualization of the measurement values in a PDF report meet all QMS requirements and document the data long-term.”

HL-1D ideal for Pharmacies

Complete measurement chain

Rotronic offers complete solutions for the entire measurement chain. Even if you are already using other data loggers successfully, we have a range of innovative calibration solutions.

HL-1D for pharmacy

If you require more information or wish to discuss any monitoring, control or calibration applications you may have please do not hesitate to contact us.

Dr. Jeremy Wingate
Rotronic UK

What is Dew Point Temperature

Our state side colleagues have put together a great FAQ technical note explaining dew point temperature in more detail!

chilled mirror / dew point mirror
chilled mirror / dew point mirror

The FAQ technical note can be accessed here and answers the following key questions!

  1. What is dew point temperature?
  2. What is frost  point?
  3. When should I choose dew point as the parameter I measure?
  4. What are the pros and cons of measuring dew point versus relative humidity?
  5. Does dew point change as the ambient temperature changes?
  6. How does pressure affect dew point measurement?
  7. What are the common technologies for measuring dew point?
  8. Isn’t dew point temperature the same thing as wet bulb temperature?
  9. How do I know which technology is best for my application?
  10. Where can I buy a dew point instrument?

Rotronic produce precision low dew point sensors for low moisture applications in addition Rotronic UK is the UK distributor for world class MBW chilled mirrors, please contact us for additional information!

Dr Jeremy Wingate
Rotronic UK

Temperature, Humidity and Ceramic drying

Introduction

Ceramic drying is one of the most important processes in ceramic production technology. Quality defects of ceramic products are caused by improper drying. The drying affects the quality of the finished product, the throughput but also the overall energy consumption for ceramic manufacturing enterprises. According to various statistics, generally energy consumption during drying processes represents 15% of total industrial fuel consumption. However within the ceramic industry, the energy consumption used for drying accounts for a much higher percentage of the total fuel consumption. Therefore energy saving within the drying process is extremely important for all enterprises. Drying speed, reducing energy use , ensuring high quality products and reducing  pollution are all  basic requirements for any ceramic manufacturer today.

Measurement and Control in Ceramic Dying

Ceramic production is done through several main processes: casting, drying, glazing, firing…

The casting and drying are important processes for ceramic. A forming workshop is equipped with an intelligent control system. The control system regulates the relative humidity value using information provided via room and process sensors. Sensors have to measure accurately ad repeat ably despite the challenging and often dusty conditions. Humidification and dehumidification processes require substantial energy so tighter control is a huge energy saver for these industries.

A constant temperature is also achieved via the intelligent control system. With a stable temperature and stable relative humidity within the workshop, manufacturers ensure the quality of  the ceramic body drying.

After stripping the body from the cast, the body contains a very high relative humidity level. During the drying process, the body may crack or deform due to the speed in which the product is dried (volume and shrinkage) which ruins the product and decreases the throughput.

Exactly this part of the process has become a major bottleneck within the production process of ceramic products.

In a casting workshop, stable environments can reduce the cracking and deformation effectively. It also improves the throughput rate of semi-finished products and shortens the drying period, also prolonging the life frame of the  plaster cast.

So constant temperature and  relative humidity according to the set values will help all factories to improve the throughput, reach an optimal drying speed and deliver the best quality results available.

How can we help?

Rotronic provides a range of instruments for environmental monitoring and control.

Rotronic HC2-IC industrial temperature and humidity probes, are successfully working in these tough applications, the probes are installed on the roofs of drying chambers and resist chemical pollution. With a flexible  HF5  transmitter, the outputs can be set to the customers requirements.

With both digital and a range of analogue outputs available as well as several probe mounting options, products can be selected for all applications.

Measurement data can be viewed on HF5 with display or remotely via HW4 software. Ease of calibration and sensor replacement ensures down time is kept to an absolute minimum.

Dr Jeremy Wingate
Rotronic UK

 

Energy Efficiency and Reliability in Modern Data Centres

Introduction

Data centres are rapidly becoming the power houses of the modern world. Combined with the rise of digital industries, virtually all business operations now rely in some way on the transfer of data. As data transfer rates increase in tandem with an explosion in mobile communication the demands on data centre infra-structure are ever increasing.

It is estimated that by 2018 global data traffic will exceed 8500 exabytes (32% compound annual growth rate).

Data centres provide the infra-structure to support the transfer and hosting of data. They are often classified into 4 tiers. Tier 4 provides highest levels of redundancy, security and efficiency. For example, a Tier 4 data centre is required to have an uptime of 99.995% equivalent to less than 27 minutes downtime per year! Tier 4 sites have fully redundant systems, power supplies and biometric security. Zero downtime is the ideal as the costs incurred via end user penalties can be huge.

data centre tiers

Why the need to measure temperature, humidity and differential pressure?

Data centres must be maintained to specific environmental conditions to ensure the performance and longevity of the hardware installed. As standard, temperature must be 18-27 °C, dew point 5-15 °C dp and humidity no higher than 60 %rh. This ensures the hardware is at a suitable temperature, condensation is avoided and the chance of static build up is reduced (caused by low humidity).

A control range of ±9 °C may seem relatively broad, however 100% of the energy supplied to server hardware is converted to heat. In most data centres if the cooling system fails and servers are not shut down, heat levels will rise above a critical 35 °C within minutes or even seconds. If unchecked, temperature levels will rise causing hardware damage and can result in electrical fires.

Achieving the specified control range requires precision sensors and advanced control systems. Typically modern data centres are designed using computational fluid dynamics to ensure the very highest efficiency. Despite this it is estimated around 5% of US electrical energy used is for data centre cooling.

pue power usage effectiveness

Since 100% of electricity utilised by servers is converted to heat, theoretically a 100% efficient cooling system would require an equal amount of energy. Efficiency is measured by comparing total facility energy use, with IT equipment energy use. This is called Power Usage Effectiveness (PUE). Theoretically PUE can be 1 but typically reported values are above 2. By utilising precision measurements and design, modern data centres achieve PUEs of ~1.1!

An improvement of 0.5 in a data centre’s PUE  equates to a energy saving of ~£2.2 M & ~12,000 tonnes CO2 over 5 years (for a site with 1 MW load).

 

What solutions can Rotronic offer?

Rotronic provides a range of instruments for environmental monitoring and control. Reliable and precise outside air sensors and weather shields enable natural cooling to be utilised where possible.

Inside the data centres, Rotronic interchangeable HC2-S probes can provide a combination of precise, fast response temperature and humidity measurements with ease of calibration. Our latest PF4 differential pressure transmitters provide precision low drift measurements.

With both digital and a range of analogue outputs available as well as several probe mounting options, products can be selected for all applications.

Importantly though we aim to understand your needs and build a relationship with the goal of providing an appropriate solution, combining instruments, training, calibration and ongoing support.

Dr Jeremy WIngate
Rotronic UK