Toshiba LF810, Лист данных продукта

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4
4. Specifications
4-1. Overall Specifications
Measurement Fluids Homogeneous and ultrasonically conductive fluids
(Clean water, waste water, industrial water, river water, sea
water, pure water, etc.)
Temperature range -4 to 140°F (-20 to 60°C)
Note:
1) above also applicable to ambient temperature
2) For main unit, 14 to 122°F (-10 to 50°C)
Turbidity 10000 mg/L or less
Note) No air bubbles
Pipes
Material Pipes made of materials that allow stable transmission of
ultrasonic waves, such as steel, stainless steel, cast iron,
ductile cast iron, PVC, FRPM, etc.
Note) Applicable pipe bores may vary depending on the pipe material
and condition.
Diameters 1” – 24” (DN25mm to DN600mm)
Lining None, tar epoxy, mortar, etc.
Note) Linings must be closely adhered to the base pipe.
Measurement
range Converted to flow velocity: -30 m/s to +30 m/s
Number of
measurement
paths 1 measurement path
Measurement
cycle 1 s
Measurement
Performance
1”-1.75”
(DN 25 ~ 40mm) ±2.5%(*) of reading, however ±0.025(*) m/s for flow
velocities less than 1 m/s
(*) Depending on calibration
2” – 3.5”
(DN 50 ~ 90mm) ±2.0% of reading, however ±0.020 m/s for flow velocities
less than 1 m/s
4” – 10”
(DN 100 ~ 250mm) ±1.5% of reading, however ±0.015 m/s for flow velocities
less than 1 m/s
12” – 24”
(DN 300 ~ 600mm) ±1.0% of reading, however ±0.010 m/s for flow velocities
less than 1 m/s
Repeatability
± 0.5%
Range ability 1 : 300
Note:
1) For volumetric flow rate.
2) Fully developed and rotationally symmetrical flow profile required.
3) Verified by manufacturer's conditions.
Measurement
method
Ultrasonic pulse transit time difference method
European
compliance
(CE marking)
Safety: IEC61010-1 2nd Edition
EMC: EN61326-1:2006 + EN61326-2-3:2006
.