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參數(shù)資料
| 型號(hào)： | 942663-0000 |
| 英文描述： | FUELLSTANDSFUEHLER PLUG IN DISPLAY |
| 中文描述： | FUELLSTANDSFUEHLER插頭在顯示 |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大小： | 623K |
| 代理商： | 942663-0000 |
Installation
Mounting
Always mount the sensor such that the
distance between it and the maximum
product level exceeds the blocking
distance. The lower edge of the
transmitter should, however, project
belowthe roof of the tank or silo.
Exception: mounting in a nozzle.
Never mount two Prosonic T in a
vessel because the instruments may
not function correctly.
Do not mount the sensor in the centre of
the vessel roof.
Position the sensor at right angles to
the surface of the material.
Do not measure through the filling
curtain.
Interference Suppression
Interference echoes coming from
internal fittings can be suppressed by
using the fixed target suppression
function. The signals are then no longer
recorded or used for further processing.
The ultrasonic pulse leaves the sensor
as a narrow beam which widens with
increasing distance from the device.
Every object within this beam produces
an interference echo which is received
by the sensor.
Blocking Distance
Due to the ringing time of the sensor,
there is a zone immediately below it in
which returning echoes cannot be
detected. This so-called blocking
distance determines the minimum
distance between the sensor and the
maximum level in the tank or silo (see
Technical Data for values).
Mounting on a Nozzle
If the maximum level to be measured
falls within the blocking distance, the
transmitter must be mounted on a
nozzle.
No build-up should form in the nozzle.
The recommend nozzle dimensions
are limits, within which the nozzle can
vary. Check that the nozzle diameter is
large enough, but keep the nozzle
length to a minimum (see figure).
The inner surface of the nozzle should
be as smooth as possible – no edges
or welding seams.
Other Types of Mounting
below left:
mounting with welded sleeve
below right:
mounting with counter nut
L
L
D
D
Sensor FMU
130 / 230
130 / 230
130 / 230
131 / 231
131 / 231
232
D mm (in)
50 (2)
80 (3.1)
100 (3.9)
80 (3.1)
100 (3.9)
100 (3.9)
max. L mm (in)
150 (5.9)
240 (9.4)
380 (15)
240 (9.4)
380 (15)
300 (11.8)
Dimensions without Display
D
min
= 100 mm (3.9 in)
L
max
= 150 mm (5.9 in)
Dimensions with Display or Commuwin II
(use echo suppression)
Counter nut
supplied for
G 1
/
2
" and
G 2"
instruments
Maximum
level
Blocking
distance
Violation of
the blocking
distance
may lead to
incorrect
operation.
5
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