Application Example: Horizontal Tank With Volume - Siemens SITRANS LR 300 Instruction Manual

Application Example: Horizontal Tank with Volume

Notes:
• The minimum distance from the flange face to the target is limited by near-blanking
P800.
• Only set P837 if the product is at least 2m (78") away from the flange face. If it is
closer, leave P837 at 1 until the level drops and the distance increases beyond
2m (78").
The application is to obtain a level measurement and corresponding 4-20 mA output
proportional to vessel volume 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 SITRANS LR 300 is to go into Fail-Safe Hi after 2 minutes.
500mm
(20.4")
3000mm
(122.4")
A
Parameter
P999
P001
P002
P003
P004
P005
P006
P007
P050
P051
P052
P053
P070
P071
P820
P837/838
(Note above)
Run: To start normal operation, press the PROGRAM key
Page 50
Enter
---- master reset
1 mode of measurement
1 material
2 measurement response
240 antenna
1 units
3.5 empty distance
3 span
7 tank shape
8000 maximum volume
.8 tank dimension A
6 tank dimension L
2 Fail-Safe timer
1 Fail-Safe
12 algorithm
2 & 1 Auto False Echo Suppression
SITRANS LR 300 – INSTRUCTION MANUAL
L
= level
= liquid
= 1m/minute
= factory
= meters
= 3.5m
= 3m
= parabolic ends
= litres
= 0.8 meters
= 6 meters
= 2 minutes
= Hi
= First echo
.
Calculate
actual volume
(e.g. 8000 litres
capacity)
A
7ML19985CL02