PI-2020 Bi Rotor Flow Meter
PI2020-Bi-Rotor Positive Displacement flowmeter features two precisely machined rotating members known as helical rotors which rotate and mesh within the meter’s interior housing in order to form a measuring chamber of known volume which may be used to accurately determine volumetric flow rate as a funtion of the rotors’ velocity. The helical rotors’ motion is transmitted to the display via a sealed coupling & drive system that enables the display to provide accurate data for both flow rate and total accumulated flow. The unique helical rotor design provides a number of advantages over traditional gear-type PD meters including reduced pressure drop, the virtual elimination of down-stream pulsations, enhanced particle tolerance, and reduced maintenance. The advantages provided by the helical rotor make the F2001 an ideal choice for many applications including oil-in-water media and fluids with entrained solids.
Bi-rotors inner measuring chamber.
Features
- Superior accuracy to 0.1% of reading over 30:1 turn-down
- Uniform rotation means low pressure loss
- No metal-to-metal contact provides for long service lifetime
- Self-lubricating Very low noise and vibration
- Reduced number of parts reduces maintenance requirements
- Rugged double case construction prevents loss of calibration
- Due to changes in pressure or temperature
- Size from 3/4” to 16”
- Complied with OMIL R120~1996
Technical Specifications
- Accuracy: up to +/- 0.1%
- Line size: 1/4” to 16” (DN8mm to DN400mm)
- Repeatability: +/-0.02%
- Working pressure: up to ANSI 600Lb or customized
- Pulse ouput: (18 to 36V, VH=20V)
- VL<1V and output load<200ohm
- Process temperature: -22 to 480℉(-30 to 250℃)
- Current output: 4-20mA, ( two wires system w/600ohm max loop load 60mA)
- Viscosity: 0 to max.@ 20,000cp
- RS485 output: communication with modbus for D1 register only MODBUS RTU ( powered by 18 to 36V
- Protection: IP65( IP67 for options)
- Display: Instantaneous/Total/Batch
- Ambient temperature: 104 to 176℉( 40 to 80℃)
- Ambient humidity: 5% to 95% Rh @75℉
- User parameter: K factors, linear correction coefficient flowrate input signal section points,temperature and pressure compensation, set pulse outpur range, decimal adjusment, etc.
- ATEX, Ul, FM approved registered pulser and electroic register
Materials of Construction
- Housing: welded steel constructioncombining steel castings and drawn steel plate
- Roratros: Three/Four lobe rotators-cast steel as standard , SS304/SS316 for options
- Measuring chamber: Cast case as standard( SS304 and SS316 for options)
- Rotator shafts: E.T.D 150
- Rotaror beasrings: Stainless steel as standard , other materials for options
- Body and end covers: cast steel, SS304 and SS316 for options
- Couner base plate: cast steel
- O-ring: Viton , PTFE
- Dirve shafts, Drive Gears and ball bearings:
- Stainles steel
