Download PDF of this page  Print this page

Bi-Rotor Positive Displacement Meter

The SMC ALBRPD 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 ALBRPD an ideal choice for many applications including oil-in-water media and fluids with small ammounts of entrained solids.

Flow Range up to 8800 GPM (2000 m³/hr)
Operating pressure max. 930 psig (64bar)
Line size ¼"-16" (8-400mm) ANSI or DIN Flange
Process temperature -22 ~ 480°F (-30 ~ 250°C)
Body Material Stainless Steel 304 and Carbon Steel
Viscosity 0~20,000 cP
Enclosure Rating NEMA 4 (IP 65)
Working Humidity < 90% @ 75°F
Working Temperature 104 ~ 176°F (40 ~ 80°C)
Accuracy ±0.1%
Repeatability ±0.01%
Pulse Output (24VDC±5%, VH≥20V,) VL<1V and output load < 200Ω)
Current Output 4-20mA, (two wire system w/ 600Ω max loop load)
Digital Output RS485/RS232 communication with Modbus RTU (powered by 24VDC±5% and <60mA)
Display rate, total, low flow cust-off, battery consumption
User Parameters K-factors, linear correction coefficeient, flowrate input signal section points, temperature and pressure compensation, set pulse output range, decimal adjustment, ect.
Communciation Baud Rates User selectable (1200, 2400, 4800 or 9600)
  • 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
  • NIST traceable calibration certificate

©2017 SmartMeasurement™
10437 Innovation Drive, Suite 315, Wauwatosa, WI 53226
Tel: 1-414-299-3896 | Fax 1-414-433-1606 1-866-404-5415

Site Credits: Ecreativeworks