UniData Communication Systems Starflow QSD Manual page 20

Note: Pipes less than 150mm diameter are NOT RECOMMENDED for Starflow QSD installation due
to the instrument's size. Do the following:
1. If the inside circumference of the pipe is ACCURATELY known, then cut the band assembly to
this length LESS 25mm for fitting clearance. Circumference (length) = Diameter x 3.14
2. Arrange the clamp, band(s) and joiner(s) so that Starflow QSD unit will be positioned at the
bottom (invert) of the pipe and an Expanding Clamp at the top (obvert) of pipe (see diagram).
3. Drill 4 x 5mm holes, 85mm spaced in the centre of the band to locate the instrument. Use the
Starflow QSD mounting clamp 6527M as a guide.
Use a small pilot drill bit (about 2mm) then finish with the 5mm bit. When drilling stainless steel
use a slow speed and high pressure. Avoid stopping as the material will work harden making it
more difficult to drill.
4. Use M3 x 12mm stainless steel machine screws and M3 nylock nuts (supplied) to connect all
parts. (If pop rivets and the pop rivet gun are available they can be used as the replacement for
the screws and nuts sets)
Note: the band length must be measured to include the Expanding Clamp (fully closed), bands
and joiners all together as shown.
5. Position and tighten Starflow QSD and band, the bolt the Starflow QSD mount to the band
6. Fold the band into a circle to easily fit inside the pipe and position into place inside the pipe
7. Slip the loose end of the band into the expanding clamp
8. Adjust clamp until band is tight inside pipe (use spanner if necessary)
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx
Manual – Starflow QSD Model 6527B and 6537A
Page 18