Document No LM0670 Issue A Rev 2 November 2017 Page 2 of 15
Contents
DESIGN & PRINCIPLE OF OPERATION: .............................................................................................. 1
SPECIFICATION: ................................................................................................................................. 3
METER CONTENTS DESCRIPTION all as stated on the calibration certificate .............................. 3
MATERIALS: ........................................................................................................................................ 3
FILTRATION: ........................................................................................................................................ 3
Meter Size ...................................................................................................................................... 3
FLOW PULSATION: ............................................................................................................................. 4
COMMISSIONING and START-UP: .................................................................................................... 4
MECHANICAL INSTALLATION: ........................................................................................................... 5
Application Warnings: ...................................................................................................................... 6
INTRINSIC SAFETY Exi – Installation notes ..................................................................................... 7
FLAMEPROOF EExd – Installation notes .......................................................................................... 7
PRESERVATION .................................................................................................................................. 7
RECALIBRATION PERIOD ................................................................................................................... 7
HANDLING AND SHIPPING PROCEDURES ........................................................................................ 8
HAZARDOUS AREA CERTIFICATION ................................................................................................... 8
FIELD WIRING CONNECTION & OUTPUT ........................................................................................... 8
METER MAINTENANCE – GENERAL ................................................................................................... 9
METER MAINTENANCE - TROUBLE SHOOTING ................................................................................. 9
WEEE - Waste Electrical and Electronic Equipment ..................................................................... 10
Measurement Principle: ................................................................................................................. 11
What’s a pressure balanced chamber? ........................................................................................ 11
Key Benefits: ............................................................................................................................... 11
FAT Issues ........................................................................................................................................ 12
On-Site Flowmeter Calibration ....................................................................................................... 12
On-Site calibration .......................................................................................................................... 12
Precautions: .................................................................................................................................... 12
Flying start and finish ................................................................................................................. 13
Standing start and finish ........................................................................................................... 13
Installation ...................................................................................................................................... 13
Commence the test ......................................................................................................................... 13
Calculations ..................................................................................................................................... 13
Appendix .......................................................................................................................................... 15
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