User Manual
2021 Release 2
WiseAir Technologies India LLP
[email protected] +91 90477 78715
WAFS 103 DIFFERENTIAL
PRESSURE PITOT TUBE FLOW METER
Page 5 of 32
MEASURE TO MANAGE
2.2 Differential Pressure Pitot Tube Flow Meters
Pitot tube flow meters are ideally suited to wet, dirty and high velocity gases. The
extremely sensitive differential pressure measurement allows this sensor to be used over a wide
flow range. The patented anti condensation technology enables the sensor to be used under
saturated conditions and ensures the sensor will perform stable accurate measurements for
years to come.
Pitot tube flow sensor measures the upstream dynamic pressure and downstream
static pressure. The pressure differential is a measure of the velocity and flow rate.
Thanks to the online auto-calibration technology, high reliability, long-term
measurement and accuracy can be guaranteed.
Pitot flow meters are widely used in industrial processes, chemical, petrochemical,
power engineering, etc.
Pitot Tube flow meters are ideal for both temporary or permanent installations.
2.3 Key Features of Pitot Tube Flow Meters
Insertion type sensor
Ideal for wet and dirty gases Flow range of 5-300 Nm/s Note : below minimum
velocity flow meter reading will be zero
Patented anti condensation technology
Integrated pressure and temperature sensor
Online auto-calibration function to compensate for temperature and
pressure change
Easy to insert and remove through 1/2” valve, even when under pressure
Two output types as standard
Digital - Modbus RTU and
Analog— 4...20 mA + Pulse
Two shaft length options
250 mm or
400 mm
Suitable for pipes from DN25-DN300 provided minimum velocity
(>1L/minute) is maintained
Vibration proof
Low pressure drop
2.8" ultra-wide viewing angle LCD touch screen
Data logging with up to 10,000,000 recording points