PASCO PS-2222 General Flow Sensor - Manual (Page 3)

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M o d e l N o . P S - 2 2 2 2 P r o d u c t D e s c r i p t i o n
3
Pitot Tube (ME-2221)
The Pitot Tube is designed to measure flow veloc-
ity in open channels. The Pitot Tube has a detach-
able handle attached to a 1/4”-20 nut.The overall
hose length is 6 feet (1.82 m). The tube with the
male luer plug is for low pressure measurement and
the other tube is for high pressure measurement.
Quick Start
• Plug the General Flow Sensor into one of the PASPORT
input ports of a PASCO interface (such as the 850 Universal
Interface, Xplorer GLX, or SPARK Science Learning Sys-
tem). Or, connect the sensor to the PASPORT Sensor Exten-
sion Cable and then connect the cable to an input port.
• Connect an accessory such as the ME-2220 Venturi Tube or
the ME-2221 Pitot Tube to the General Flow Sensor.
• Start the PASCO data acquisition software (such as PASCO
Capstone). Select the type of fluid (air or water). Set up a data display in the software.
• Click “Record” , press the button on the GLX, or touch ‘Start’ to begin recording
data.
Specifications
The pressure sensing element used in this sensor will provide accuracy of ±2.5% of the full scale reading (50
kilopascal) at temperatures between 0 and 85 degrees C. This implies accuracy within ±1.25 kPa. Better accuracy
may be attained by doing a calibration of the sensor at the temperature of use and maintaining the sensor in a sta-
ble position.
ME-2221 Pitot Tube
Handle
Low Pressure
Tube
Flow
Direction
Fluid
Inlet
Static Taps (evenly spaced
around circumference)
Overall hose length
is 6 feet (1.82 m)
Luer Plug, Male
Stagnation
Point
P
1
2
---
V 2
=
Static Taps
To Sensor
Sensor
PASPORT
Input Port
Interface
• SETUP: For more information on setting up the software and recording data, refer to the end of
this document or the User’s Guide and online help for the data acquisition software.
High Pressure
Tube