Honeywell SLG 700 User Manual page 36

In general, absorption will tend to be higher in media with higher dielectric constant.
Therefore the measureable thickness range of the upper product will be lower with higher
upper product dielectric constant applications (DC >3 or 4).
U
When the upper product thickness drops below 15cm approximately, the surface and interface
reflections start to overlap. The transmitter will continue to measure the upper product
thickness accurately down to 7cm in spite of the fact that the echo curve might only show one
reflection for both surface and interface. If the transmitter fails to measure upper product
thicknesses below 15cm or if the measurement of thin interfaces is inaccurate, it might be
necessary to adjust the reflection models using the Honeywell DTM. Refer to the SLG 700
HART Option manual, #34-SL-25-06 for details on adjusting model parameters.
Note: The level transmitter is designed to measure properly only when the upper product
thickness is greater or equal to 7cm. For example, upon restart the transmitter will not attempt
to provide a surface and interface measurement if the upper product thickness is less than
7cm.
Note: If the surface level is never going to exceed the minimum blocking distance high (min
BDH) for the transmitter configuration, it is recommended to keep full tank detection option
off.
SLG 700 SmartLine Level Transmitter User's Manual
Page 24 Revision 7