Siemens sitrans PROBE LU Instruction Manual page 27

2-wire loop powered ultrasonic transmitter for level, volume and flow monitoring of liquids
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Level
(P001 = 1)
transducer
face
Span
P007
P006
Empty
1
Notes:
• Setting P001 resets Span (P007), unless Span has previously been set to a different
value. Span is set to Empty distance minus 110% of Blanking
to distance measurement (P001 = 3). In this case, Span is set to the same value as
Empty (P006).
• Changing P001 may reset Output Function (P201): this applies to HART only.
3.
Set response time to maximum filling/emptying rate (P003:
Measurement Response)
Set P003 to a measurement response speed just faster than the maximum filling or
emptying rate (whichever is greater).
Values
Slower settings provide higher accuracy; faster settings allow for more level fluctuation.
(For more detail on measurement response, see
page 29.)
4.
Select type of measurement units required (P005: Units)
Values
1.
Blanking distance is 0.25 m (10"). See
7ML19985HT01
Space
(P001 = 2)
(20 mA)
100%
Level
0%
(4 mA)
1
*
slow
2
medium
3
fast
1
*
meters
2
centimeters
3
millimeters
4
feet
5
inches
Blanking Distance
SITRANS Probe LU – INSTRUCTION MANUAL
(P001 = 3)
Span
(4 mA)
0%
Space
Empty
100%
(20 mA)
1
, unless Operation is set
0.100 m/minute
1.000 m/minute
10.000 m/minute
P003 Measurement Response
on page 82 for more details.
Distance
0%
(4 mA)
Span
Distance
Empty
100%
(20 mA)
, on
Page 21

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