CiDRA SONARtrac 40 Inch Diameter and Larger Sensor Head - Manual (Page 5)

The 40-inch and larger sensor head uses 2 sensor bands that are
electrically coupled together.
Note: The upstream sensor band (with respect to process flow
direction) is referred to as Band #1. The downstream sensor band
(with respect to process flow direction) is referred to as Band #2.
2.1 Process Pipe Cleaning and Marking
Clean the process pipe a minimum distance of 54-inch along the pipe
surface.
Place a reference mark at the center of the cleaned pipe surface.
2.2 Sensor Band Installation
Install the sensor bands as follows:
1. Install Band #1 with the downstream edge of the sensor band
aligned within ¼-inch of the mid-point reference mark placed on
the pipe. (Figure 1) Refer to Section 5 of the full Installation &
Startup Manual for sensor band installation instructions.
2. Wrap Band #2 around the process pipe and insert the sensor
band alignment pins in their corresponding holes.
3. Insert the Sensor Band Spacer Tool over the downstream sensor
band screw on sensor band #1. The edge of the tool should be
flush with the sensor band #1 rails. (Figures 1, 2, 3)
4. Align the attachment rails of sensor band #2 flush against the
sensor band spacer tool. The rails of the two sensor bands
should be aligned within ~¼-inch. (Figure 2)
5. Tighten sensor band #2 per Section 5 of the full Installation &
Startup Manual.
6. Remove the sensor band spacer tool.
7. Install the sensor band insulating blanket. Carefully thread the
sensor band connector cable assemblies through the opening on
the blanket.
8. Install the sensor band connector #1 and #2 into their respective
connectors on the “Y” Connector Plug Assembly. (Figures 1, 4, 5)
9. Remove the sensor band cover electronics access panel. Refer
to Section 5 of the Installation & Startup Manual for cover
installation details.
P/N 21080-01 Rev 02 Page 2-2