Specifications - Toshiba LF414 Instruction Manual

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:
Fluid temperature:
Ambient temperature: –4 to 140°F (–20 to +60 °C)
Fluid pressure:
Heat shock resistance: for ceramic tube detector
Heating: ΔT ≦ 150 °C/0.5 s (Note)
Cooling: ΔT ≦ 100 °C/0.5 s (Note)
Connection flange standard: See Table 9.2 Type Specification Code.
Principal materials
Case・・・・・・ Stainless steel : meter sizes 1" to 4" (25 to 100 mm)
Lining・・・・・ Ceramic : standard for meter sizes 1/2" to 4" (15 to 100 mm)
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.
5 µS/cm minimum
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)
–15 to 300psi, or –1.0 to 20 bar (– 0.1 to 2.0MPa)
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).
Carbon steel : meter size 1/2", 6" and 8" (15 mm,150mm, and 200mm)
Teflon PFA : standard for meter sizes 6" and 8" (150 mm,200mm)
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