Can Vaisala Sensors Communicate with Two Systems?

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Janice Bennett-Livingston
Jul 26th 2014
Industrial Measurements
Life Science
Science & Sensing Technologies

This week Paul Daniel answers a post-seminar question about monitoring using redundant sensors and multiple systems, both Continuous Monitoring and Building Management systems.

 

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Hi Paul,
I attended one of your seminars on Continuous Monitoring Systems and we use many Vaisala Temp/RH devices. These devices are currently connected to our Continuous Monitoring System - viewLinc. We also have a Building Management System that has less robust sensors.

The question I have is twofold:

  1. Can the Vaisala devices communicate with both our systems - CMS and BMS?
  2. What is the industry practice concerning BMS and CMS sensors? Can both systems use the same sensor or do you need to have redundant sensors for the two different systems? I ask because, although our Quality Management goals are high, redundant sensors double the cost in installation, calibration, and purchase and we need to manage costs... Your input is greatly appreciated!

Best regards,
T

Can the Vaisala devices communicate with both our systems - CMS and BMS?

Dear T,
Thanks for attending our seminar! The best people to answer detailed questions about our sensors are our sales managers - simply because they know more about our devices than I. However, I can provide an immediate answer. Certain Vaisala devices can communicate with multiple systems simultaneously! However, if you want to communicate with a Vaisala CMS and a non-Vaisala system such as a Building Management System (BMS), then you must use the Veriteq Series of Vaisala Data Loggers. These data loggers can communicate with multiple systems via an OPC query. If your sensors are not Vaisala sensors, they can interface with a Universal Input DL4000 data logger, which will then allow communication with both a Vaisala CMS and your non-Vaisala BMS via OPC.

BLOG-IMAGE-Validation-loggers-in-fridge-Vaisala

 

What is the industry practice concerning BMS and CMS sensors? Can both systems use the same sensor or do you need to have redundant sensors for the two different systems?

Regarding industry practice, there is no standard that I know for using two redundant sensors, or for using one sensor to communicate data with two separate systems. However in my experience, I have seen both approaches work, so I know that you can do it safely from a GMP perspective. I recommend that you apply GMP level controls as your would for your CMS, rather than defaulting to BMS level controls (that are not generally GMP). Note that I am not talking about electronic controls, but rather of quality procedures to "control" the system to GMP standards. I can go into this in more depth if you like, but I am sure you get the idea...
I hope you find this useful. If you have any further questions on the topic, please don’t hesitate to reach out to me or my colleagues in your region, we are here to answer your questions!

 

 

Contributors

Paul Daniel

Paul Daniel

Senior Regulatory Compliance Expert

Paul Daniel is the Senior Regulatory Compliance Expert at Vaisala. He has worked in the GMP-regulated industries for over 20 years helping manufacturers apply good manufacturing practices in a wide range of qualification projects. His specialties include mapping, monitoring, and computerized systems.

At Vaisala, Paul oversees and guides the validation program for the Vaisala viewLinc environmental monitoring system. He serves as a customer advocate to ensure the viewLinc environmental monitoring system matches the demanding requirements of life science and regulated applications.

Paul also shares his GMP experience through regular blog contributions, webinars, and seminars around the world. Paul’s expertise in the demanding GxP world is applicable to any industry where measurement is critical to product quality. Paul is a graduate of University of California, Berkeley, with a bachelor's degree in biology.

Janice Bennett-Livingston

Marketing Manager

In addition to editing the Vaisala Life Science blog, Janice Bennett-Livingston is the Global Life Science Marketing Manager for Vaisala's Industrial Measurements business area.

Pre-Vaisala writing credits include a monthly column called "Research Watch" for Canada's award-winning magazine alive, as well as articles in Canadian Living and other periodicals. Other past work: copywriting for DDB Canada, technical writing at Business Objects, and communications specialist for the British Columbia Child & Family Research Institute.