Specifications - Toshiba LF664 Instruction Manual

9. Specifications

Overall specifications of the LF664 detector and type specification code tables to specify each item
of the detector specifications are described in the following sections.
9.1 Specifications
Meter size: ANSI 150
20", 24" (500, 600mm)
AWWA class D
28", 30", 32", 36", 40", 42", 48", 54", 60", 66", 72", 78"
(700, 800, 900, 1000, 1050, 1200, 1350, 1500, 1600, 1800, 1950mm)
Measurement range in terms of flow velocity: 0–1.0 ft/s to 0–32.8 ft/s (0–0.3 m/s to 0–10 m/s)
Accuracy:
< 20" to 24" (500mm to 600mm) >
± 0.3% of Rate * (Accuracy when combined with the converter LF620F and LF622F)
* This pulse output error result is established under standard operating conditions at Toshiba
admitted flow calibration facility.
* Individual meter's measurement error may vary up to ± 0.5 % of Rate at 3.28 ft/s (1.0 m/s) or
more and ± 0.3% of Rate ±0.079 inch/s (2 mm/s) at 3.28 ft/s (1.0m/s) or less.
* Current output: plus ±8μA(0.05% of span.)
* Refer to individual calibration data for each meter's measurement error.
< 28" and over (700mm and over ) >
± 0.5% of Rate * (Accuracy when combined with the converter LF620F and LF622F)
* This pulse output error result is established under standard operating conditions at Toshiba
admitted flow calibration facility.
* Individual meter's measurement error may vary up to ± 0.8 % of Rate at 3.28 ft/s (1.0 m/s) or
more and ± 0.4% of Rate ±0.157 inch/s (4 mm/s) at 3.28 ft/s (1.0m/s) or less.
* Current output: plus ±8μA(0.05% of span.)
* Refer to individual calibration data for each meter's measurement error.
Fluid conductivity: 5 µS/cm minimum
Fluid temperature: 20" to 40" (500 to 1000mm) ; 14 to 140 °F (–10 to +60 °C)
42" (1050mm) and over ;
Ambient temperature: 14 to 140 °F (–10 to +60 °C)
Fluid pressure: -0.1MPa to 1.0 MPa
Structure: IP 67 and NEMA 4X Watertight
Option 1: IP68 and NEMA 6P Temporary submersible type
The coating for this type is polyurethane coating.
Option 2: IP68 and NEMA 6P Continuous submersible type
The coating for this type is tar epoxy resin coating. This type of flowmeter is sub-mersible
to 5 m in water.
Connection flange standard: ANSI 150, AWWA class D
14 to 104 °F (–10 to +40 °C)
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