SEBA SEBAPuls Manuale utente
User manual
Version 3.01
SEBAPuls
Product code: RAD 580X
English
SEBA HYDROMETRIE GmbH & Co. KG
Gewerbestrasse 61 a
87600 Kaufbeuren
Germany
Tel. (+49) 8341 9648-0
Fax (+49) 8341 964848
E-Mail: [email protected]
www.seba.de
Technical changes and errors reserved!
Content
1INTENDED USE ..........................................................................................- 4 -
2PRODUCT DESCRIPTION ............................................................................- 4 -
3SAFETY AND DANGER INSTRUCTIONS........................................................- 5 -
4MOUNTING ...............................................................................................- 6 -
4.1 Mounting variants............................................................................................................................................. - 6 -
4.2 Mounting example............................................................................................................................................ - 8 -
4.3 Reference plane and antenna edge .................................................................................................................. - 9 -
4.4 Positioning the SEBAPuls ................................................................................................................................ - 10 -
4.5 Analog signal output (4-20 mA / 0.2-1V / 0.4-2V) .......................................................................................... - 11 -
4.5.1 Connecting SEBAPuls with analog output (with DC/DC converter) ............................................................. - 11 -
4.5.2 Connecting SEBAPuls with analog output (without DC/DC converter)........................................................ - 12 -
4.6 Digital signal output (SDI-12) .......................................................................................................................... - 13 -
4.6.1 Settings via SDI-12 protocol ......................................................................................................................... - 13 -
4.6.2 Measurement value output ......................................................................................................................... - 13 -
4.6.3 Connecting SEBAPuls 8 / 15 with SDI-12 output.......................................................................................... - 14 -
4.6.4 Connecting SEBAPuls 20 / 120 with SDI-12 output...................................................................................... - 15 -
5PUTTING INTO OPERATION .....................................................................- 16 -
5.1 SEBAPuls with analog output.......................................................................................................................... - 16 -
5.2 SEBAPuls with SDI-12 output .......................................................................................................................... - 16 -
6POWER SUPPLY .......................................................................................- 17 -
7MAINTENANCE........................................................................................- 17 -
8TECHNICAL DATA.....................................................................................- 18 -
9ACCESSORIES...........................................................................................- 18 -
10 DISPOSAL ................................................................................................- 19 -
Chapter 1
4
1INTENDED USE
The radar sensor SEBAPuls is solely used for non-contact measurement of water level in rivers,
channels, dams, lakes or tidal areas.
Consider the technical specifications in chapter 8 when using the device.
Solely the use in accordance with the instructions described in this user manual is an intended use.
Any other use is not an intended use of this device.
2PRODUCT DESCRIPTION
The radar sensor SEBAPULS is a high accuracy measuring device measuring the surface water level
without direct contact. Therefore the radar measurement is unaffected by mudding, drifting
materials, weed, sewage and brackish or saline water etc.
There is no influence in the measurement accuracy caused by air humidity (fog) or air temperature
fluctuations. Further advantages implementing this radar sensor are the low energy consumption,
the short measuring cycle and the short mounting distance.
The measuring principle, the so called pulse procedure, sends a short microwave impulse to the
water surface. Subsequently the transmitter has a short time lag. Within this time lag, it receives the
reflected impulse from the water surface and transmits it to the integrated evaluation system. The
run time of the impulses corresponds directly to the distance of the actual surface water level.
SEBAPuls 8
SEBAPuls 15
SEBAPuls 20
SEBAPuls 120
Chapter 3
5
3SAFETY AND DANGER INSTRUCTIONS
General
▪Read the user manual carefully before starting with operation!
▪Only use the device as intended and described in this user manual!
▪Always keep the user manual available at site where the device is used!
▪Keep the user manual for future operation!
▪In case you sell the device or hand it to someone else, also hand over the user manual!
▪Please be informed that operation and connection faults are beyond our sphere of influence. So,
understandably, we cannot take over liability for resulting damages.
Marks
Pay attention to the different marks used in this user manual.
See hereafter the explanation of meanings of the used marks.
Warning: Situation that might result in injury or death.
Attention: Situation that might result in damage to the device.
Important notice: Important notice and additional information.
Working with electrical voltage
By handling devices, which are supplied by electrical voltage, the valid VDE-instructions, especially
VDE 0100, VDE 0550 und VDE 0700 have to be considered.
Before opening an instrument, pull off the mains plug (if existing) and make sure that the instrument
is without power supply.
Parts, construction groups or instruments must only be set into operation, in case they are built into
a housing and protected against touching. During installation they have to be without power.
It is only allowed to use tools at the instruments, parts or construction groups, in case it is secured
that the instruments are dropped out and the electric loads which are stored in the construction
groups inside the instrument, are unloaded.
Conducting cables or conductors, which are connected to the instrument, part or construction group,
have to be checked continuously to isolation faults or sites of fractures. By verification of a fault in
the supply cable, the instrument has to be switched-off immediately, until the defect cable has been
exchanged.
Before setting into operation, generally check if the instrument or construction group is suitable for
the field of application. In case of doubts, unconditionally contact specialists, experts or the
manufacturer of the used construction group!
Chapter 4
6
4MOUNTING
4.1 Mounting variants
Mounting with locknut
The types SEBAPuls 8 and 15 can be mounted on the SEBA standard boom with opening for thread
G 11/2 by means of the locknut. Push the sensor into the opening of the boom and fix it with the
enclosed locknut.
For the distance to the wall, refer to chapter 4.4.
SEBAPuls 8 SEBAPuls 15
mounted to SEBA standard boom mounted to SEBA standard boom
with lock nut with lock nut
SEBA standard boom
Chapter 4
7
Mounting with mounting strap
The types SEBAPuls 15, 20 and 120 can be mounted using a mounting strap. First attach the
mounting strap to the desired position and then attach the radar sensor to the mounting strap
using the screws provided.
The mounting strap is optional for the SEBApuls 15 and included in the standard scope of delivery
for the SEBAPuls 20 and 120 types.
The mounting strap can be attached both to the SEBA standard boom and directly to ceilings or
walls.
For the distance to the wall, refer to chapter 4.4.
SEBAPuls 20 / 120 SEBAPuls 15
Ceiling mounting with mounting strap mounted to SEBA standard boom
with mounting strap
Top view of mounting strap
Chapter 4
8
4.2 Mounting example
Wall
Radar sensor
SEBAPuls 15
SEBA standard boom
510 mm
connection box
0m distance to water surface
= 20mA output
15m distance to water surface
= 4mA output
Chapter 4
9
4.3 Reference plane and antenna edge
The reference plane (1) marks the zero point of the measuring range of each sensor.
The minimum distance to the water surface is measured from the end of the antenna (2) on the
sensor. The following minimum distances to the water surface apply to the various sensor types:
* Individual setting possible, sensor needs to be sent to SEBA.
(1) Reference plane
(2) Antenna edge
Model
Minimum distance to water surface*
(measured from antenna edge)
SEBAPuls 8
5 cm, factory setting 0,5 m
SEBAPuls 15
5 cm, factory setting 1 m
SEBAPuls 20
5 cm, factory setting 1 m
SEBAPuls 120
25 cm, factory setting 1 m
SEBAPuls 8
SEBAPuls 20 / 120
1
2
SEBAPuls 15
Chapter 4
10
4.4 Positioning the SEBAPuls
Formula to calculate minimum distance to wall/shore/etc.
w= tan α*b
α= radiation angle
b= measuring range
w= radiation radius (minimum distance to wall/shore/etc.
Model
Radiation
angle
α
Measuring range
b
Radiation radius (minimum
distance to wall/shore)
w
SEBAPuls 8
10°
8 m
1.41 m
SEBAPuls 15
5°
15 m
1.31 m
SEBAPuls 20
5°
35 m
3.06 m
SEBAPuls 120
3.5°
120 m
7.34 m
Important notice
Pay attention to the vertical installation of the sensor shaft to the measuring medium because
otherwise the echoes are reflected into wrong directions and cannot be received by the
antenna.
Reference plane
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