H242 Helical Flow Meter

High-throughput, high viscosity meter, Model H242

Flow range: 1 liter/min to 500 liters/min (0.26 to 132 gpm)
Accuracy (at 30cp): ± 0.2% of reading over 50:1 range
Maximum Operating Pressure: 35 or 240 bar (500 or 3500 psi)
Displacement: 0.182 liters/rev (11.1 in3/rev)
Weight: 18.1 kg (40.0 lbs)
Recommend Filtration: 150 micron (100 mesh)
Port Size: 2.5" NPT or 2.5" (DN65) flange
Fluids: Most non aqueous, hydrocarbon based liquids

Materials of Construction

Body: Stainless steel, type 303
Rotors and shafts: Stainless steel, type 303
Bearings: Stainless steel 440C
Seals: Viton® "O" rings - standard; Teflon®, Perfluoroelastomer - optional

Transmitter Variations (dependent on model #)

Signal Type

Frequency
Output: 5V pulse, single phase (current sinking, also available)
Resolution: 5000 pulses/liter
Temperature Rating:
Standard: 90°C ; Two Piece Ultra High Temp: 225 °C

Quadrature
Output: 5V pulse, two phase
Resolution: 2500 pulses/liter/phase
Linearization: Linearized
Temperature Rating:
Standard: 90°C ; Two Piece Ultra High Temp: 225 °C

Voltage
Output: 
0-10Vdc 
Resolution: Uni or bidirectional
Linearization: Linearized
Temperature Rating:
Standard: 90°C ; Two Piece Ultra High Temp: 225 °C


Current
Output: 0-20mA
Resolution: Uni or bidirectional
Linearization: Linearized
Temperature Rating:
Standard: 90°C ; Two Piece Ultra High Temp: 225 °C

Compliance: CE Certified, Ex-proof version available with ATEX/IECEx II 2 G Ex db IIB Tx Gb as well as UL, cUL certification for Class 1, Division 1, Groups C and D, Tx

Maximum temperature rating for ATEX certified transmitters is 130°C

Dimensional Drawing

H242 Illustration

Pressure Drop Curve

Library

AttachmentSize
PDF icon H242 Spec Sheet627.76 KB
PDF icon Helical Flow Meter Manual1.84 MB
PDF icon Example Calibration H242228.27 KB

H242 Typical Applications

Meter Features:- Accuracy within 0.2%- Non-drifting output, reliable throughout the pour-...
Hydrocarbon refining facilities require accurate flow measurement instruments to safely and...
Asphalt (or bitumen as it is commonly referred to outside the U.S) is derived from crude oil and is...
Recycling of construction materials is environmentally conscientious in a number of ways....
Flow measurement under Military specifications is one of the most stringent duties that our meters...
Precise polymer loading into the fiber matrix ensures adequate coverage, with no waste.  Carbon...
The Power Generation industry strives for the highest levels of energy efficiency and the lowest...
Accurate volumetric measurement of oilfield chemicals. With port sizes ranging from 1/4" to 2.5"...