
Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX
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1. Labeling
Sierra Instruments Model 640S-EEX and 780S-EEX Flow Transmitters that have the following
label attached have been certified in compliance with the Directive 94/9/EC of the European
Parliament and the Council as published in the Official Journal of the European Communities
No. L 100/1 on 19 April 1994.
KEMA ATEX official label from Sierra Instruments, Inc.
The following information is provided as part of the labeling of the transmitter:
• Name and address of the manufacturer: Sierra Instruments, Inc., 5 Harris Court, Building L,
Monterey, CA 93940, USA, Ph. 831-373-0200, Fax 831-373-4402
• The serial number of the device
• Year of construction
• Model Number
• CE Mark
• Marking for explosion protection: ATEX II 2 GD EX d IIC T6-T2 T280°C (Suitable for Use in
Zone 1 Gas and Dust applications)
• KEMA ATEX certificate number: 06ATEX0105
• Cable entry treads information (3/4” NPT) and housing IP rating