Emerson 3812 ユーザーズマニュアル
Daniel 3812 Liquid Ultrasonic Flow Meter Installation Manual
Section 2: Mechanical installation
3-9000-765 Rev H
May 2015
Piping recommendations
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Sunshields, provided by the customer, may be required to prevent exceeding the process fluid
temperature when the meter is mounted in a location with extremely hot climates.
temperature when the meter is mounted in a location with extremely hot climates.
Flow conditioning is recommended for best measurement results.
•
Honed or un-honed meter tube(s)
•
Flow direction (unidirectional or bidirectional)
•
Correct meter size selection - too low may cause poor flow stability (thermal
convection or too fast may cause erosion problems and resonance, cracks or failure of
probes or thermowells (approximately .6 to 12 m/sec or 2 to 40 ft/sec).
convection or too fast may cause erosion problems and resonance, cracks or failure of
probes or thermowells (approximately .6 to 12 m/sec or 2 to 40 ft/sec).
•
Space availability for meter lengths (to allow inlet piping customization)
•
Concentric alignment pins or flange concentricity technique considerations
Figure 2-5 Piping recommendations unidirectional flow
SUNSHIELD PROTECTION
Install a sunshield to prevent prolonged exposure to direct sunlight in extreme climates.
Failure to shield the meter may result in exceeding the process temperature range and damage
transmitter electronics.
transmitter electronics.
For optimal flow measurement conditions, Daniel suggests the piping configurations below.
Regardless of the configuration selected, the user agrees to accept full responsibility for the
site piping design and installation.
Regardless of the configuration selected, the user agrees to accept full responsibility for the
site piping design and installation.