Application Examples; Application Example: Asphalt In Storage Tank - Siemens SITRANS LR 300 Instruction Manual

Application Examples

These SITRANS LR 300 application examples can be used as set-up references. The
parameter value tables relate the values to the functions.

Application Example: Asphalt in Storage Tank

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").
Empty
(P006)
Span
P007)
Parameter
P999
P001
P002
P003
P004
P005
P006
P007
P070
P071
P820
P830
P837/838
(Note above)
Run: To start normal operation, press the PROGRAM key
7ML19985CL02
Enter
---- master reset
1 mode of measurement
1 material
2 measurement response
240 antenna
1 units
5 empty distance
4.5 span
2 Fail-Safe timer
1 Fail-Safe
8 algorithm
7 TVT type
2 & 1 Auto False Echo Suppression
SITRANS LR 300 – INSTRUCTION MANUAL
The application is to obtain a level
measurement and corresponding 4-20 mA
output proportional to asphalt levels in a
storage tank.
The bottom of the antenna flange is 5m
from the tank bottom. The empty level is 0m
(bottom) and the full level (span) is 4.5m
from the bottom. The maximum rate of
filling or emptying is about 0.1m/min. In the
event of a loss of echo, the SITRANS LR 300
is to go into Fail-Save Hi after 2 minutes.
Asphalt build-up on the rod antenna does
not affect performance.
= level
= liquid
= 1m/minute
= factory
= meters
= 5m
= 4.5m
= 2 minutes
= Hi
= Blf (best of Largest or First)
= factory
.
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