Mounting On A Non-Metallic Container; Figure 3-29: Mounting On A Non-Metallic Vessel; Table 3-18: Slg726 Bypass And Stillwell Recommended Diameters - Honeywell SLG 700 User Manual

Table 3-18: SLG726 bypass and stillwell recommended diameters

Probe type
Rod probe
Wire probe
Coaxial probe
Chambers with smaller diameter can lead to problems with build-up. Chambers larger
than 6" (150mm) can be used, but offer little advantage for radar measurement.
The probe must extend the full length of the chamber and not contact the bottom of the
chamber, or make contact with the chamber wall.
Clearance from the bottom of the chamber is recommended to be 1" (25mm). Probe
selection is dependent on length.
For lengths less than 20' 8" (6.3m): Rod probe is recommended.
For lengths more than 20' 8" (6.3m): Wire probe with weight and centering disk is
recommended.
A centering disc is recommended for rigid probes over 1m length to prevent excessive
movement caused by strong currents inside the pipe.

3.2.10 Mounting on a non-metallic container

To install a single lead probe into a non-metallic (plastic) vessel, the probe must be
mounted with a metal flange (>2"/DN50) or if a threaded process connection is in use,
the probe must be screwed into a metal sheet (diameter > 8"/200mm).
Figure 3-30 depicts an example of mounting in concrete silos, the placement of the concrete
versus the metal sheet used to secure the transmitter. Both Figure 3-29 and Figure 3-30 are
considered non-metallic mounts. Both types of mountings are subject to the same
specifications.
Page 68
Recommended diameter
3" or 4" (75mm or 100mm)
4" (100mm)
N/A

Figure 3-29: Mounting on a non-metallic vessel

SLG 700 SmartLine Level Transmitter User's Manual
Minimum diameter
2" (50mm)
2" (50mm)
2" (50mm)
Revision 7