elsner elektronik KNX SO250 Guida
KNX SO250
Ultrasonic Probe
Item number 70151
EN
Installation and Adjustment
1 Content
Elsner Elektronik GmbH • Sohlengrund 16 • 75395 Ostelsheim • Germany
Ultrasonic Probe KNX SO250 • from KNX application 1.1, device software version 0.4
Status: 14.09.2020 • Technical changes and errors excepted.
1. Description ........................................................................................... 5
1.1. Scope of delivery ...................................................................................................... 5
1.2. Technical Data .......................................................................................................... 5
1.2.1. Evaluation Unit .............................................................................................. 5
1.2.2. Air ultrasonic probe ...................................................................................... 6
2. Installation and commissioning ........................................................... 6
2.1. Installation notes ...................................................................................................... 6
2.2. Instructions for assembly and operation ............................................................... 7
2.2.1. Evaluation device .......................................................................................... 7
2.2.2. Ultrasonic probe ........................................................................................... 7
2.3. Connection .............................................................................................................. 10
3. Addressing of the device at the bus .................................................. 10
4. Settings on the device ....................................................................... 11
4.1. Standard display screen ........................................................................................ 11
4.1.1. Function of the keys in the display menu ................................................. 11
4.2. Distance measurement .......................................................................................... 11
4.3. Fill level measurement ........................................................................................... 12
4.3.1. Rectangular tank ......................................................................................... 13
4.3.2. Spherical tank .............................................................................................. 14
4.3.3. Cylinder vertical .......................................................................................... 14
4.3.4. Cylinder horizontal ...................................................................................... 14
4.3.5. Settings for all tank designs ....................................................................... 15
4.4. Relay set-up ............................................................................................................ 16
4.4.1. Set relay 1 / 2 ............................................................................................... 16
4.4.2. Relay 1 / 2 for fault warning ....................................................................... 17
4.5. Acoustic alarm ........................................................................................................ 18
4.6. Language ................................................................................................................ 18
5. Disposal ............................................................................................. 19
6. Transmission protocol ....................................................................... 20
6.1. Listing of all communication objects .................................................................... 20
7. Parameter setting .............................................................................. 22
7.1. General settings ..................................................................................................... 22
7.1.1. Distance measurement ............................................................................... 22
7.1.2. Fill level measurement ............................................................................... 22
7.2. Tank and calculation (only for fill level measurement) ....................................... 23
7.2.1. Rectangular tank ......................................................................................... 23
7.2.2. Spherical tank .............................................................................................. 24
7.2.3. Cylinder vertical .......................................................................................... 24
7.2.4. Cylinder horizontal ...................................................................................... 24
7.2.5. Settings for all tank types ........................................................................... 24
7.3. Threshold Values .................................................................................................... 25
2 Content
Elsner Elektronik GmbH • Sohlengrund 16 • 75395 Ostelsheim • Germany
Ultrasonic Probe KNX SO250 • from KNX application 1.1, device software version 0.4
Status: 14.09.2020 • Technical changes and errors excepted.
7.3.1. Threshold Value 1 / 2 / 3 / 4 / 5 ................................................................... 25
3 Clarification of signs
This manual is amended periodically and will be brought into line with new software
releases. The change status (software version and date) can be found in the contents footer.
If you have a device with a later software version, please check
www.elsner-elektronik.de in the menu area "Service" to find out whether a more up-to-
date version of the manual is available.
Clarification of signs used in this manual
Installation, inspection, commissioning and troubleshooting of the device
must only be carried out by a competent electrician.
Safety advice.
Safety advice for working on electrical connections, components,
etc.
DANGER! ... indicates an immediately hazardous situation which will lead to
death or severe injuries if it is not avoided.
WARNING! ... indicates a potentially hazardous situation which may lead to
death or severe injuries if it is not avoided.
CAUTION! ... indicates a potentially hazardous situation which may lead to
trivial or minor injuries if it is not avoided.
ATTENTION! ... indicates a situation which may lead to damage to property if it is
not avoided.
ETS In the ETS tables, the parameter default settings are marked by
underlining.
4 Clarification of signs
5 Description
Ultrasonic Probe KNX SO250 • Version: 14.09.2020 • Technical changes and errors excepted.
1. Description
The Ultrasonic Probe KNX SO250 is used for measurement of the fill level of liquids
in tanks or for distance measurement. In addition to application areas like rainwater
cisterns or fuel tanks, also e. g. fish ponds or wells or the parking distance of trucks can
be monitored. Please follow the "Instructions for assembly and operation" on page 4.
The display directly indicates the distance/fill level. The integrated key pad is used for
selection of the tank dimensions and setting of two relay switching outputs. When the
relays are switched an additional acoustic alarm can be emitted.
The KNX software ETS software allows individual parameterization of all bus functions
of the KNX SO250. Five switching outputs with adjustable threshold values are avail-
able.
Functions:
•Distance measurement
•Fill level measurement in spherical, rectangular and cylinder tanks. Several
similar tanks as battery
• Setting of the two relays with the integrated display and keypad
• Setting of bus functions by means of the KNX software ETS. 5 switching
outputs with adjustable threshold values (Threshold values can be set by
parameter or via communication objects)
Configuration is made using the KNX software ETS. The product file can be down-
loaded from the Elsner Elektronik website on www.elsner-elektronik.de in the “Ser-
vice” menu.
1.1. Scope of delivery
• Evaluation unit in series installation housing
• Ultrasound sensor with 10 m power cable
1.2. Technical Data
1.2.1. Evaluation Unit
Housing Plastic material
Colour White
Mounting Snap-on fitting on mounting rails
Degree of protection IP 20
Dimensions approx. 123 x 89 x 61 (W x H x D, mm), 7 width units
Weight approx. 345 g
Ambient temperature Operation 0…+45 °C, Storage -25…+70°C
Ambient air humidity 5...95% R. H., avoid bedewing
Operating voltage 230 V AC, 50 Hz
Power consumption max. 4 W
6 Installation and commissioning
Ultrasonic Probe KNX SO250 • Version: 14.09.2020 • Technical changes and errors excepted.
The product conforms with the provisions of EU directives.
1.2.2. Air ultrasonic probe
2. Installation and commissioning
2.1. Installation notes
Installation, testing, operational start-up and troubleshooting should
only be performed by an electrician.
DANGER!
Risk to life from live voltage (mains voltage)!
There are unprotected live components within the device.
• VDE regulations and national regulations are to be followed.
• Ensure that all lines to be assembled are free of voltage and take
precautions against accidental switching on.
• Do not use the device if it is damaged.
• Take the device or system out of service and secure it against
unintentional use, if it can be assumed, that risk-free operation
is no longer guaranteed.
The device is only to be used for the intended purpose described in this manual. Any
improper modification or failure to follow the operating instructions voids any and all
warranty and guarantee claims.
Outputs • KNX data
• 2 x Relay, potential-free NOC, max. 250 V AC / 7 A
Data output KNX +/- bus terminal plug
Group addresses max. 254
Allocations max. 255
Communication objects 57
Housing Plastic material
Colour Black
Degree of protection IP 52
Liquid resistance Water, fuel
Dimensions Total diameter approx. 60 mm,
total head height approx. 45 mm, thread 1½ inches
Anschlusskabel RG 58 coax cable, length 10 m
Total weight approx. 480 g
Ambient temperature +0…+40 °C
Measurement range 12…250 cm
7 Installation and commissioning
Ultrasonic Probe KNX SO250 • Version: 14.09.2020 • Technical changes and errors excepted.
After unpacking the device, check it immediately for possible mechanical damage. If it
has been damaged in transport, inform the supplier immediately.
The device may only be used as a fixed-site installation; that means only when assem-
bled and after conclusion of all installation and operational start-up tasks and only in
the surroundings designated for it.
Elsner Elektronik is not liable for any changes in norms and standards which may occur
after publication of these operating instructions.
2.2. Instructions for assembly and operation
Note for recording the filling amount of tanks:
When recording the filling amount, check if the entire tank content is available — or if
a residual part has to remain in the tank due to its design. For example, in oil tanks, the
intake pipe does not typically reach the ground to prevent draining sediments. In such
cases, approx. 5—10% of the tank content can be unavailable.
2.2.1. Evaluation device
Must only be installed and operated in dry, indoor spaces.
Avoid condensation.
The evaluation unit of KNX SO250 s designed for series installation on mounting rails
and occupies 7 units.
After the operating voltage has been applied, the device will enter an initialisation
phase lasting a few seconds. During this phase no information can be received or sent
via the bus.
2.2.2. Ultrasonic probe
Use only for level measurement of water or fuel oil!
Not suitable for aggressive media (acids, alkalis)!
Not suitable for explosive media!
If you are unsure whether the probe is suitable for a certain medium, please contact
the technical service of Elsner Elektronik.
Do not cause any mechanical stress on the front part (rubber)!
8 Installation and commissioning
Ultrasonic Probe KNX SO250 • Version: 14.09.2020 • Technical changes and errors excepted.
The measuring head must be dry:
It must not be washed by liquids!
No condensation, no droplet formation!
The measuring track must be free:
No steam, fog, etc. between the sensor and the measuring surface!
Steam is formed e.g. when a warm fluid is poured into a tank.
The measured surface must be still:
No waves, no vibrations!
To avoid wave formation in fluids, the measured area can be separated using a meas-
uring tube (Ø at least 50 mm).
Note: The measuring surface is only quiet as long as the end of the measuring tube is
below the surface.
Fig. 1
The measuring track is aligned vertical to
the sensor surface. The measuring track
has to meet the measuring surface verti-
cally, too.
90°
90°
Measuring track
Measuring surface
Sensor
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