Troubleshooting guide

18
Reference Manual
00809-0100-4308, Rev BA
Section 3: Installation
December 2014
Installation
 Make sure the nozzle does not extend into the tank.
Note
Violent fluid movements causing high sideway forces may break rigid probes.
If the probe is mounted close to a wall, nozzle or other tank obstruction, noise might appear in
the level signal. Therefore the following minimum clearance, according to Ta bl e 3 -1 , must be
maintained.
Figure 3-2. Free Space Requirement
Table 3-1. Recommended Minimum Free Space to Tank Wall or Other Objects in the Tank
Probe type Condition Minimum free space
Rigid Single/Flexible Single Smooth metal wall 4 in. (100 mm)
Disturbing objects such as pipes and
beams, or rugged metal tank walls
16 in. (400 mm)
Flexible Twin Smooth metal wall 4 in. (100 mm)
Disturbing objects such as pipes and
beams, or rugged metal tank walls
16 in. (400 mm)
Coaxial N/A 0 in. (0 mm)
Clearance to tank wall