Variable Area Flowmeter AVF250 Series

FEATURES
 5 Digit flowrate & 8 Digit totalizer
 Local indication without auxiliary power
 4-20 mA & scale pulse output
 Low pressure loss in gas and steam application
 Damper for Gas / Steam application
 Consistent overall length
 Heating jacket design
 Intrinsically safe & explosion proof for hazardous area
SPECIFICATION
Size:
Local Display:
15,20,25,40,50,65,80,100,125,150,200 mm
Mechanical Indicator (Standard)
Measuring Range:
Digit Display
Liquid -1~200000 L/hr
5 Digit Flowrate
Gas -0.03~3000 m3/hr
8 Digit Totalizer
Turndown Ratio:
Current Output:
10:1 (20:1 Optional)
4-20 mA (2 Wire)
Accuracy:
Load
+/-1.6% (Standard)
Max. 600 
+/-1.0% (Optional)
Pulse Output:
Repeatability:
Open collector (Scale pulse)
+/-0.5% FS
Rating
Material:
3-30 VDC, 100 mA Max. 
Tube & Float
Data Storage:
Stainless Steel 304
Operation parameters and totalizer
Stainless Steel 316
figures are stored by EEPROM for more
Stainless Steel 316L
than 10 years
Stainless Steel + PTFE Liner
Alarm Output:
Standard Pressure:
2 Point (Open collector)
40 kgf/cm2 (15-50 mm)
Rating
16 kgf/cm2 (65-200 mm)
3-30 VDC, 100 mA Max.
Temperature:
Keypad:
-25~200 oC (Standard)
3 Internal keys for programming
-25~100 oC (LCD Display)
and display control
0~80 oC (PTFE Liner)
Ambient Temperature:
-80~400 oC (Optional)
-25~60 oC
Flange Type:
Protection Class:
JIS 10K / JIS 20K / JIS 40K
IP65
ANSI 150# / ANSI 300# / ANSI 600#
Intrinsically Safe, Eex ia IIC T5
DIN PN10 / PN16 / PN25 / PN40
Explosion Proof, Ex d IIB T6
Fluid Viscosity:
Housing Material:
300 cP Max.
Aluminum Alloy
Communication:
Cable Entry:
RS485 (MODBUS Protocol)
Standard: M20  Option: 1/2"NPTF
HART signal (Compatible)
Pressure Loss:
0.07-0.7 kgf/cm2
Power Supply:
12-36 VDC (2 wire 4-20 mA)
Ni-MH Battery (3 years working hours)

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