23
58-610 Model R82 Radar Transmitter
Display
Action
Comment
13
Blocking Distance
(xxx.x)
Enter the Blocking Distance
Blocking Distance defines an area near the antenna
where reflections can not be measured effectively due
to antenna ringing. It is measured from the Sensor
Reference point. Default of 15" (380 mm) minimum dis-
tance from the process connection to the maximum level.
Extend this value when necessary to block reflections
from objects close to the antenna. Output will be held
at value corresponding to Blocking Distance. Do not
allow liquid into the Blocking Distance as false readings
can result.
14
Level Offset
(xxx.x units)
Enter the Level Offset
Level Offset defines an area at the bottom of the vessel
where reflections can not be measured effectively due to
angled bottoms, heating coils, reflections from flat metal
tank bottoms in low dielectric applications, etc. It is the
distance from the bottom of the tank to the lowest valid
level reading. Level reading will never be lower than
Level Offset value.
15
Dielectric
(select)
Enter the Dielectric range value
1.7-3.0; 3.0-10.0; 10.0-100.0
16
Turbulence
(select)
Select amount of
Turbulence of the liquid
None, Light, Medium, Heavy. Increase selection if Echo
is often lost or Echo Strength is <20.
17
Foam
(select)
Select amount of Foam
None, Light, Medium, Heavy. Increase selection if Echo
is often lost or Echo Strength is <20.
18
Rate of Change
(select)
Select Rate of Change of the liquid
Select the maximum rate of change of the level surface,
rising or falling, in inches (cm)/minute; <5 (13), 5-20
(13-50), 20-60 (50-150), >60 (150)
19
Echo Profile
Press Enter to
- Review all Echoes
- Run a new Echo Rejection Profile
1.) Echo List Mode- Choose to review echoes in
Distance or Level
2.) Review all echoes using UP/DOWN arrows; listed in
descending Level value
3.) To run a new Echo Rejection Profile
a.) Choose the echo that corresponds to the actual
liquid level
b.) Press ENTER and confirm a new Echo Rejection
profile should be run. If necessary, Press ESCAPE
to exit at any time.
NOTES:
- ECHO REJECTION should run with vessel at or near
empty when all targets are exposed
- Re-run this routine if intial calibration is done with
significant liquid in vessel
- The Echo Rejection profile will be disabled and this
routine must be re-run if the following parameters
are modified: SENSOR OFFSET, TANK HEIGHT,
BLOCKING DISTANCE, DIELECTRIC,
TURBULENCE, FOAM
- The EchoRej Invalid message will be displayed if this
algorithm is DISABLED due to a parameter change.
continued on next page
2.6.6.1 Radar Transmitter User Menu—Level Measurement Only (cont.)
Note: Press UP arrow 5 times to reach screen where menu language can be chosen.
