Toshiba LF414 - Manual (Page 45)

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9. Specifications
The flowmeter specifications and the type specification code used when ordering the flowmeter
are described in this chapter.
9.1Specifications
Meter size: 1/2, 1, 1 1/2, 2, 3, 4, 6, 8 inch
(15, 25, 40, 50, 80, 100, 150, 200mm)
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).
0 – 0.3 ft/s to 0 – 1.0 ft/s (0 – 0.1 m/s to 0 – 0.3 m/s) range is available optionally.
System accuracy combined with TOSHIBA converter:
Accuracy: ±0.2 % of Rate*
* This pulse output error result is established under standard operating conditions at Toshiba's flow calibration facility,
Fuchu Japan. (NIST Traceable).
* Individual meter measurement error may vary up to ±0.5% of Rate at 1.64 ft/s (0.5m/s) or more and ±0.3% of rate
±0.039 inch/s (1mm/s) at 1.64 ft/s (0.5m/s)or less.
* Current output: plus ± 8µA (0.05% of span.)
* Refer to individual calibration data for each individual meter's measurement error.
Fluid conductivity: 5 µS/cm minimum
Fluid temperature: 14 to 356 °F (–10 to +180 °C) (Ceramic Tube detector)
(248 °F (120 °C) above is separate type)
14 to 248 °F (–10 to +120 °C) (Teflon PFA Lining detector)
Ambient temperature: –4 to 140°F (–20 to +60 °C)
Fluid pressure: –15 to 300psi, or –1.0 to 20 bar (– 0.1 to 2.0MPa)
Heat shock resistance: for ceramic tube detector
Heating: ΔT ≦ 150 °C/0.5 s (Note)
Cooling: ΔT ≦ 100 °C/0.5 s (Note)
Note: Meaning that the ceramic tube detector withstands the shock of
sudden heating (temperature difference 150 °C or less per 0.5 seconds)
or sudden cooling (temperaturedifference 100 °C or less per 0.5 seconds).
Connection flange standard: See Table 9.2 Type Specification Code.
Principal materials
Case・・・・・・ Stainless steel : meter sizes 1” to 4” (25 to 100 mm)
Carbon steel : meter size 1/2”, 6” and 8” (15 mm,150mm, and 200mm)
Lining・・・・・ Ceramic : standard for meter sizes 1/2” to 4” (15 to 100 mm)
Teflon PFA : standard for meter sizes 6” and 8” (150 mm,200mm)
Electrodes・・・・ 316L stainless steel (standard)
Grounding rings・・316 stainless steel (standard)
See Table 9.2 Type Specification Code for optional materials and other related information.