Procedure
1. Identify desired Upper Null Zone using the Echo Curve plot.
a) Start the Echo Curve reading.
b) View the Echo Curve plot to find out if there are disturbing echoes close to
the tank top.
2. Set the desired Upper Null Zone value.
a) Select
Configure
→
Manual Setup
→
Level Setup
→
Probe
→
Advanced
Probe Options
.
b) Under
Upper Null Zone
, type the desired value into the box, and then select
Send
.
Related information
6.5.3
Interface Level with Submerged Probe
The measurement mode Interface Level with Submerged Probe is used to handle interface
measurements when the product level is not visible, for example in a full chamber pipe as
illustrated in
. In this case the probe is fully submerged into the upper product,
and only the interface level is detected by the transmitter.
Figure 6-16: Interface Level Measurements in a Full Chamber Using the Interface Level
with Submerged Probe Measurement Mode
$
&
'
%
A. Interface distance
B. Interface level
C. Product level is ignored
D. Interface level is measured
Service and troubleshooting
Reference Manual
February 2020
00809-0100-4308
134
Rosemount 3308 Series
Summary of Contents for Rosemount 3308A
Page 8: ...Contents Reference Manual February 2020 00809 0100 4308 viii Rosemount 3308 Series ...
Page 10: ...Introduction Reference Manual February 2020 00809 0100 4308 10 Rosemount 3308 Series ...
Page 22: ...Transmitter overview Reference Manual February 2020 00809 0100 4308 22 Rosemount 3308 Series ...
Page 74: ...Installation Reference Manual February 2020 00809 0100 4308 74 Rosemount 3308 Series ...
Page 96: ...Configuration Reference Manual February 2020 00809 0100 4308 96 Rosemount 3308 Series ...