LZN830 Series

The LZN830 series is a positive displacement meter designed with a pair of tooth profile helical rotors, which displays totalizer with a mechanical pointer and provides 4-20 mA or pulse output.  It has the advantages of no pulsation, low noise, high accuracy, high reliability, large measuring scope and strong environment adaptability.
LZN830 series helical rotor flowmeter could be used in commercial measurement and engineering management control in petrochemical, metallurgical, electronics and other industries.

Category:
  • Pipe size : 25-300 mm (1″-12″)
  • Fluid viscosity up to 20,000 cP
  • High measurement accuracy, wide flow range and good repeatability
  • Helical rotors rotate evenly, with little vibration and long lifetime
  • Insensitive to viscosity variations in the measured liquid
  • 6 Digit totalizer + 2 digit pointer
  • High accuracy +/-0.5% of reading (or +/-0.2% of reading)
  • 4-20 mA or pulse output
Size : 25, 40, 50, 80, 100, 150, 200, 250, 300 mm
Measuring Range : 0.5-950 m3/hr
Accuracy : +/-0.5% of reading (Standard)
: +/-0.2% of reading (Option)
Repeatability : +/-0.1% of reading (Standard)
: +/-0.07% of reading (Option)
Material
Body & Cover & Flange : Cast Steel / S.S. 304 / S.S. 316
Helical Rotor : Cast Iron / S.S. 304 / S.S. 316
O-Rings : Viton
Shaft Sleeve : Ball / Ceramic Bearing
Register Housing : Aluminum Alloy
Max. Viscosity : 0.3-400 cP (Standard)
: 400-2000 cP (Option)
Operating Temp. : -10~120 °C (-10~80 °C with Output)
: -10~120 °C with Output (Option)
: -10~250 °C (Option)
Ambient Temperature : -25~60 °C
Max. Pressure
: 63 kgf/cm2 (≤DN100)
: 25 kgf/cm2 (≥DN150)
Painting
Body, Register : Red lead + Alia Blue
Housing : Red lead + Alia Blue
Process Connection : Flange
Flange Type : JIS 10K / JIS 20K / JIS 40K
: ANSI 150# / ANSI 300# / ANSI 600#
: DIN PN10 / PN16 / PN25 / PN40
Mechanical Register
Totalizer (Non-Reset) : 6 Digit + 2 Pointer
Totalizer (Resettable)
Upper Counter : 6 Digit + 2 Pointer (Non-Resettable)
Lower Counter : 4 Digit + 2 Pointer (Resettable)
Resolution : 0.1 Liter (25 mm)
: 1 Liter (40-80 mm)
: 10 Liter (100-300 mm)
Current Output : 4-20 mA (2 wires)
Load : Rohm=(VDC-9) * 50
Pulse Output : Open Collector (3 wires, Unscaled Pulse)
Rating : 11-26 VDC, 50 mA Max.
Cable Entry : M20 (Standard) / 1/2″ NPTF (Option)
Protection Class : IP65
: Intrinsically Safe, Eex ia IIC T6
: Explosion Proof, Ex d IIB T6
Optional : Heating Jacket (Hot oil or Steam)
: Strainers, T-Type or Y-Type
: Strainer with Air Eliminator, Flange End

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