Micronics Portaflow 222, Руководство пользователя

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Portaflow 222 & 333 User Manual Micronics
Page 48 Issue 3.1 Feb 20
9 APPENDIX
9.1 Specification
General
DSP Measurement Technique Transit time
Timing Resolution 50 pico-second, continuous signal level indication on display
Flow Velocity Range Minimum Velocity 0.1m/s; Max Velocity 20m/s: Bi-directional.
Turn Down Ratio 100:1
Accuracy ±0.5% to ±2% of flow reading for flow rate >0.2m/s
and Pipe ID >75mm.
±3% of flow reading for flow rate >0.2m/s and
Pipe ID in range 13mm - 75mm.
±6% of flow reading for flow rate < 0.2m/s.
Repeatability ±0.5% of measured value or ±0.02m/s whichever is the greater.
Reynolds Number Correction Flow velocity corrected for Reynolds number over entire velocity
range.
Response Time < 500ms depending on pipe diameter
Selectable Flow Units VELOCITY: m/sec, ft/sec.
VOLUME: l/s, l/min, l/h, gal/min, gal/h, USgals/min, USgals/h,
Barrel/h, Barrel/day, m³/s,
m³/min, m³/h.
Selectable Volume Units l, gal, USgals, Barrel, m³.
Total Volume 12 digits
–
forward and reverse
Applicable Fluid Types
Fluid Condition Clean liquids or oils that have less than 3% by volume of particulate
content. Applications include river water, sea water, potable water,
demineralised water, glycol/water mix, hydraulic systems and diesel
oil.
Applicable Pipe Types
Pipe Materials
Any sonic conducting medium such as Carbon Steel, Stainless
Steel, Copper, UPVC, PVDF, Concrete, Galvanised Steel, Mild
Steel, Glass, Brass. Including Lined Pipes - Epoxy, Rubber, Steel,
Plastic.
Pipe Dimension (OD) Min 13 mm; Max 5000 mm with D sensor set.
Pipe Wall Thickness 1 mm
–
75 mm
Pipe Lining Applicable pipe linings include Rubber, Glass, Concrete, Epoxy,
Steel.
Pipe Lining Thickness
0 mm
–
25 mm
Pipe Wall Temperature Range
Standard sensor operating temperature is -20°C to +135°C.
Transducer Sets
Standard
Temperature Range -20°C to +135°C.
'A-
ST' (standard) 13 mm…115 mm pipe O.D. (2MHz).
'B-
ST' (standard) 50 mm…2000 mm pipe O.D. (1MHz).
'D'* 1500 mm…5000 mm pipe O.D.
* Temperature Range -20°C to +80°C (0.5MHz).
Datalogger (333 models only)