User's Manual

Table Of Contents
Page 50 IQ Radar 300 PL-611
Applications
Applications
Applications
Applications
Application Example: Horizontal Tank with
Volume
Note: The minimum distance from the antenna face to the target is limited by the
near blanking, P800.
The application is to obtain a level measurement and corresponding 4-20 mA output
proportional to material levels in a chemical tank. The bottom of the antenna flange is
3.5m from the tank bottom. The empty level is 0m (bottom) and the full level (span) is
3.0m from the bottom. The maximum rate of filling or emptying is about 0.1 m/min. In the
event of a loss of echo, the IQ Radar 300 is to go into fail-safe Hi after 2 minutes.
Parameter Enter
P999
----
master reset
P001
1
mode of measurement = level
P002
1
material = liquid
P003
2
measurement response = 1m/minute
P004
240
antenna
= dielectric rod, standard
length
P005
1
units = metres
P006
5
empty distance = 5m
P007
4.5
span = 4.5m
P050
7
tank shape = parabolic ends
P051
8000
maximum volume = litres
P052
.8
tank dimension A = metres
P053
6
tank dimension L = metres
P070
2
fail-safe timer = 2 minutes
P071
1
fail-safe = Hi
P820
6
algorithm = first echo
P830
4
TVT type = factory
P837
(Note below)
2 & 1
Auto Near TVT = 0 (factory set)
Note: Only set P837 if product is at least 2.5m (78) away. If closer, leave P837 at 0
00
0
until such time the level drops below 2.5m (78).
Run: To start normal operation, press the PROGRAM key .
3000mm
122.4
500mm
(20.4)