Milltronics PL-590, Инструкция по эксплуатации

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PL-590 XRS-5 Transducer Page 17
Applications
Notes
1. Beam should not detect bin bottom.
If this occurs, use range extension parameters (on
transceivers where available) to omit false echoes.
The XRS-5 transducer operates with a beam
angle of 10° and has a rise:run ratio of
approximately 12:1. This means that for every 1m
(3.3’) of tank height, the transducer projects a
circular area over the material surface with a
radius of 83mm (32.7”). In most tanks the
transducer should be centred 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.
3. Echo has missed an improperly levelled transducer.
As 2, 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.
83mm
1m