May 05, 2011

Product Safety Notification for Rosemount 8711 Magnetic Flowmeters

  • Type of Notification: Product Safety Notification
  • FM Approval Status: FM Approved

Alert Summary

FM Approvals has been notified by Emerson Process Management of a potential safety concern involving a limited number of FM Approved Rosemount 8711 Magnetic Flowmeters shipped between August 17, 2005 and December 9, 2010.

Company Identity

Emerson Process Management, Rosemount Flow Division
12001 Technology Drive
Eden Prairie, MN 55344

Contact Information

Product information is available at

Customer Service Phone Numbers:

Rosemount USA 1-800-522-6277 or +1-303-527-5200 for outside North America
Rosemount Flow Europe +31 (0) 318 495 444
Rosemount Flow Asia +65 6777-8211
Rosemount Flow MEA +971 4 8118100

Technical Support can also be attained via e-mail by contacting

Product Identity

Rosemount 8711 Magnetic Flowmeter Sensor.


Rosemount identified a manufacturing nonconformance potentially affecting 8711 products manufactured between August 17th, 2005 and December 9, 2010 for a Class 1 Division 1 hazardous areas only (as identified by option code E5 in the model number). Rosemount determined through internal testing the encapsulation method used in the 8711 sensor manufacturing process during this time period did not consistently meet the protection requirements for a Class 1 Division 1 hazardous area.


Rosemount 8711 Magnetic Flowmeter Sensor.

Nameplate Data

Rosemount 8711 Magnetic Flowmeter Sensor with E5 Option on Label.

Hazard Involved

Rosemount has issued a safety notification regarding FM Approved 8711 sensors with the E5 approval option when installed in a Class I, Division 1 area. The letter below was sent to all customers who have units covered under this safety notification.

Using This Product?

If you suspect you are in possession of any of the affected equipment listed above bearing the FM Approvals certification marking, please bring that to the attention of:

Robert Lovell

Norwood, MA, United States

+1 (1) 781-255-4820