Siemens sitrans PROBE LU User Manual

Page 78 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL 7ML19985JB02
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H: Parameters
2.3. Standard Setup
2.3.1. Response Rate
Sets the reaction speed of the device to measurement changes in the target
range.
12
Use a setting just faster than the maximum filling or emptying rate (whichever is
greater). Slower settings provide higher accuracy: faster settings allow for more
level fluctuation.
2.3.2. Echo Lock
Selects the measurement verification process.
If a material agitator or mixer is used in the monitored vessel, Echo Lock should
be set for Maximum Verification or Material Agitator to avoid agitator blade
detection.
Related
para-
meters
Response
Rate
LOE Timer
1
(minutes)
Fill Rate
Empty
Rate
Echo
Lock
2
Hand
programmer
values
1* slow 100 0.1 m/minute 0.1 m/minute
2
material
agitator
2 medium 10 1 m/minute 1 m/minute
3 fast 110 m/minute 10 m/minute
Note: Changing Response Rate resets the following parameters: LOE Timer,
Fill Rate, Empty Rate, and Echo Lock.
1.
For more detail, see LOE Timer on page 36.
2.
For more detail, see Echo Lock on page 35.
Note: Ensure the agitator is always running while SITRANS Probe LU is
monitoring the vessel, to avoid stationary blade detection.
Hand programmer
values
0
Off
1
Maximum Verification
2*
Material Agitator
3
Tot al L ock
Related parameters
Maximum Fill Rate
Maximum Empty Rate
Echo Lock Sampling
Echo Lock Window
Algorithm

Siemens sitrans PROBE LU Specifications

General

Measuring Principle	Ultrasonic
Communication	HART
Output	4 to 20 mA
Power Supply	12 to 30 V DC
Process Temperature	-40 to 80 °C
Enclosure Rating	IP68
Material	PVDF
Ambient Temperature	-40 to 70 °C
Measurement Range	0.25 to 12 m (0.8 to 39 ft)