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Test Block
A test block is included with the Portaflow PT500 equipment to
allow the transducers and inter-connecting cables to be
functionally checked.
1. Switch ON the instrument.
2. Select Quick start and enter the parameters shown in the
table below for the appropriate transducer type (A or B):
3. When the above data is entered, the SENSOR SEPARATION screen will be displayed.
4. Use the UP/DOWN scroll key to go to the SENSOR SELECTION menu. Select the appropriate sensor (the
default will be "A") and press ENTER to return to the SENSOR SEPARATION menu.
5. Select Sensor mode and position the cursor at Diagonal and press ENTER to return to the SENSOR
SELECTION menu.
6. Select Exit and press ENTER to return to the SENSOR SEPARATION screen.
7. Check that the parameters displayed are correct.
8. Apply acoustic couplant to the sensors and attach them to the test block with the connectors positioned
towards the centre of the test block as shown, and temporarily secure them in place using elastic bands or
tape.
9. Connect the sensors to the Portaflow PT500 instrument using the cables provided.
10. Press ENTER to go to the FLOW READING screen.
11. Select the Options key to go to the FLOW READING OPTION menu and set the Damping to at least 10
seconds.
12. Select Exit and press ENTER to return to the FLOW READING menu.
13. The flow reading value displayed is not important. The fact that a reading is obtained indicates that the
instrument is functioning. This value may fluctuate but this is normal.
14. The signal strength indicator at the left of the display should show 3–4 bars.
5.5
Microprocessor Reset Facility
In the rare event that the Portaflow PT500 instrument appears to totally hang-up, or displays total gibberish, you
can reset its microprocessor by carefully inserting a straightened paperclip into the pinhole located in the right-
hand side of the instrument to operate the internal reset switch. Hold the paperclip perpendicular to the instrument
while doing this.
Parameter
A Sensors
B Sensors
Pipe outside diameter
1.02” (26.0mm)
2.09” (53.0mm)
Pipe wall thickness
0.24” (6.0mm)
0.28” (7.0mm)
Pipe lining thickness
0.0
0.0
Pipe wall material
Mild Steel
Mild Steel
Fluid type
Water
Water
Temp
68°F (20°C)
68°F (20°C)
Figure 5.2 Test block
