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Reference Manual
00809-1600-4530, Rev AA
Section 5: Additional Options
March 2015
Additional Options
5.3.1 High level supervision
Additionally, the reflector’s unique echo characteristics aid the transmitter to locate a liquid
surface above the reflector, thereby offering increased reliability to detect high level conditions
at a user selectable limit. The transmitter continuously monitors the status of the reflector and
abnormal conditions generate alarms and alerts as appropriate.
5.3.2 Limitations for verification reflector
Not to be used in fully submerged applications
Minimum dielectric constant:
2.4 (for option code HL1)
2.0 (for option code HL2 and HL3)
Verification reflector must be installed at least 20 in. (0.5 m) below the flange face. In addition,
during the calibration procedure, the level surface must be as least 20 in. (0.5 m) below the
reflector.
More information
For more information and installation requirements, refer to the High Level Supervision Manual
(document number 00809-0900-4530).