Emerson Rosemount 3812, Руководство по техническому обслуживанию и устранению неисправностей

Страница: 111 / 132

c) Position the opposite end of the band shroud near to the guide pin hole end
and engage the worm screw clamp thread ends into the worm screw clamp
nuts. With a flat blade screwdriver or 5/16 inch (8mm) hex driver rotate the
worm screw clamp nuts, each a little at a time, until the band shroud
becomes snug against the body outside diameter.
Figure 3-71: Band shroud assembly
A. Worm screw clamps
B. Guide pins
6. Check the shroud for proper fit on the meter body and continue tightening the
worm screws.
a) Check to confirm that the band shroud assembly fully covers the body
transducer pockets.
b) Check to confirm that the hem bends assembly of the two shroud parts,
located at the bottom of the meter, are fully engaged.
c) If the shroud is misaligned, use a flat blade screw driver and loosen both
worm screw clamp assemblies by alternating between the two worm screw
clamp screws, turning each a few turns at a time. Reposition the misaligned
band.
7. Install the top end shroud cap over the the worm screw clamps and insert the end
shroud pins into the Base electronics shroud.
Maintenance and Troubleshooting Manual Meter maintenance
00809-0100-3812 April 2022
Rosemount 3812 Liquid Ultrasonic Flow Meter 111