Siemens XRS-5 Compact Operating Instructions page 47

Notes:
1. Beam should not detect bin bottom.
If this occurs, use range extension parameters (on transceivers where available) to omit
false echoes. This will vary depending on your model of transducer. For example, a
transducer with a 12° beam angle represents a rise : run of about 10 : 1, and one with a
5° beam angle represents a rise : run of about 20 : 1.
In most tanks, the transducer should be centered as much as possible (without
interference from inlet) for optimum reading range.
2. Sound beam must be perpendicular to liquid surface.
When mounting the standpipe and flange, you must ensure that the transducer face will
be parallel with the liquid's surface. Refer to Standpipes (Page 42).
3. Echo has missed improperly leveled transducer.
As in the second bullet, ensure that the standpipe and flange are mounted to set the
transducer face level with the measured liquid.
4. Calibrate under normal conditions.
When performing an empty or full calibration, the tank must contain its normal vapour and
be at its normal temperature.
5. This seal is not supplied by Siemens.
The XPS-15F and XRS-5C Series transducer comes equipped with a stainless steel
coupling suitable for use in hazardous locations.
Transducers
Compact Operating Instructions, 01/2018, A5E43390688_AA
Appendix A: Applications
A.1 Liquids applications
45