Summary of Contents for Sierra 640S-EEX
- Page 1 Appendix for ATEX Certified EX Units Instruction Manual Sierra Instruments’ Model 640S-EEX and 780S- EEX Flow Transmitters Part Number: IM-ATEX, Rev. C.1 October 2013...
- Page 2 IMPORTANT CUSTOMER NOTICE- OXYGEN SERVICE Sierra Instruments, Inc. is not liable for any damage or personal injury, whatsoever, resulting from the use of Sierra Instruments standard mass flow meters for oxygen gas. You are responsible for determining if this mass flow meter is appropriate for your oxygen application.
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Page 3: Table Of Contents
Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX Contents 1. Labeling ......................4 2. Type Approval Standards .................5 3. Zone, Gas Group, Category and Temperature class ........5 3.1. Area Classification ..................5 3.2. Gas Grouping ....................5 3.3. Equipment Category ..................5 3.4. -
Page 4: Labeling
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 •... -
Page 5: Type Approval Standards
3. Zone, Gas Group, Category and Temperature class The Sierra Instruments 640S-EEX and 780S-EEX have been certified ATEX II 2 GD EX d IIC T6-T2 T280°C (Tamb. -20°C to +50°C). This means that the units can be installed in locations with the following conditions. -
Page 6: Temperature Classification
Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX 3.4. Temperature Classification Temperature Class Maximum Process temperature (°C) Maximum Surface Temperature (°C) 3.5. Ambient Temperature Range Ambient temperature range -20°C to +50°C 4. Safe Use of ATEX Approved Equipment 4.1. -
Page 7: Special Conditions For A Safe Use
Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX This manual addition only applies to EEX: ATEX II 2G/ EEX d IIC T6-T2 units. The unit is supplied without cable glands for the power and signal. It is the users responsibility to select suitable cable glands that meet or exceed the required EEX approval and that are suitable for the signal and power cable used. -
Page 8: Remote Electronics
NOTE: The unit has some built in electronic wire length compensation. It is possible to shorten the cable or to extend it up to +- 25% of the cable length. Use only Sierra cable PN 23-0221. Page 8 of 15... -
Page 9: Maintenance
Please make sure that the internals of the unit always stay dry and clean. There are no User maintainable components inside the electronic compartment 7. Earthing The Sierra Instruments units must be connected to a good quality earth. The units are provided with internal and external earthing terminals. 7.1. -
Page 10: Returning Equipment To Factory
ATEX Certified Units: 640S-EEX & 780S-EEX 9. Returning Equipment to Factory Before returning any mass flow meter to the factory, you must request and complete a Sierra Calibration/Repair Data Sheet. To obtain the data sheet contact Customer Service at: www.sierrainstruments.com or (831) 373-0200 in the USA or +31(0)72-5071400 in Europe. -
Page 11: Addendum: Installation Instructions Cable Gland
Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX 10. Addendum: Installation Instructions Cable Gland Manufacturer: Peppers Cable Gland Ltd Stanhope Road Camberley GU153BT Used Cable Glands on Sierra E3 units: E3WFR/16/050NPT (With Silicon Seals) (Sierra Reference 30-0701) E3WFR/16/075NPT (With Silicon Seals) (Sierra Reference 30-0702) - Page 12 Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX STEP-BY-STEP FITTING INSTRUCTIONS (NOTE: No Back Nut in D1W gland) 1. Split gland as shown. Remove Seal to reduce cable damage. E2 types:- remove Continuity Washer. E9 types:- remove Deluge Seal.
- Page 13 Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX 12. Ensure Seal makes full contact with cable sheath, then tighten Back Nut 1 extra turn X INSTALLATION HOLE DATA (See drawing) Xa Diameter C for clearance holes (NOT EExd) Xb Diameter C countersink for threaded holes (EExd)
- Page 14 Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX Interpretation of Markings. Markings on the outside of this gland carry the following meanings: Cable Gland Type & Size E-a-b-IE-c-FR-ddd-eee-IP67-nn = Seal Type 1 = Neoprene (black - temp range –20º to +85ºC) 2 = Neoprene with Continuity washer for lead sheathed cable 3 = Silicone (white or red - temp range –60º...
- Page 15 Sierra Instruction Manual ATEX Certified Units: 640S-EEX & 780S-EEX 1. These glands are certified with one specific size of flameproof sealing ring per gland size as supplied. 2. These glands must not be used with enclosures where the temperature at the point of mounting exceeds -20°C to +85°C using neoprene seals, or –60°...
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