LZN250H Series

The AVF250H Series is a horizontally mounted metal tube variable area flowmeter. With its unique design, it can provide a mechanical pointer display without power supply, as well as intrinsically safe and explosion-proof to suit various operating conditions.

Category:
  • Spring type horizontal mounted metal tube flowmeter
  • 5 Digit flowrate & 8 digit totalizer
  • Local indication without auxiliary power
  • 4-20 mA and scale pulse output
  • Low pressure loss in gas and steam application
  • Damper for Gas / Steam application
  • Consistent overall length
  • Intrinsically safe & explosion proof for hazardous area
Size : 15,20,25,40,50,65,80,100,125,150,200 mm
Measuring Range : Liquid -1~200000 L/hr
: Gas -0.03~3000 m3/hr
Turndown Ratio : 10:1 (20:1 Optional)
Accuracy : +/-2.5% (Standard)
: +/-1.5% (Optional)
Repeatability : +/-0.8% FS
Material
Tube & Float : Stainless Steel 304
: Stainless Steel 316
Standard Pressure : 40 kgf/cm2 (15-50 mm)
: 16 kgf/cm2 (65-200 mm)
Temperature : 0-100 °C (Standard)
Flange Type : JIS 10K / JIS 20K / JIS 40K
ANSI 150# / ANSI 300# / ANSI 600#
DIN PN10 / PN16 / PN25 / PN40
Fluid Viscosity : 300 cP Max.
Communication : RS485 (MODBUS Protocol)
: HART signal (Compatible)
Data Storage : Operation parameters and totalizer
figures are stored by EEPROM for more
than 10 years
Local Display : Mechanical Indicator (Standard)
Digit Display : 5 Digit Flowrate
: 8 Digit Totalizer
Current Output : 4-20 mA (2 wires)
Load : Max. 600 Ω
Pulse Output : Open collector (Scaled pulse)
Rating : 3-30 VDC, 100 mA Max.
Alarm Output : 2 Point (Open collector)
Rating : 3-30 VDC, 100 mA Max.
Keypad : 3 Internal keys for programming
and display control
Ambient Temperature : 0-60 °C
Protection Class : IP65
: Intrinsically Safe, Eex ia IIC T5
: Explosion Proof, Ex d IIC T6
Housing Material : Aluminum Alloy
Cable Entry : Standard: M20  Option: 1/2″ NPTF
Pressure Loss : 0.07-0.7 kgf/cm2
Power Supply : 12-36 VDC
: Ni-MH Battery (3 years working hours)