Georg Fischer 2270 Operating Manual
GF Piping Systems
Instruction manual
2270 Ultrasonic Level Sensor
Content
1. Safety and responsibility .............................................................................................................................. 2
1.1 Intended use ............................................................................................................................................... 2
1.2 Safety regulations for the Ex approved units ............................................................................................ 2
2. Transport and Storage ................................................................................................................................. 2
3. Design and Function ..................................................................................................................................... 2
3.1 Design ......................................................................................................................................................... 2
3.2 Function ...................................................................................................................................................... 3
3.3 Basic concepts and elements of the ultrasonic measurement............................................................... 4
3.4 Identifikation ............................................................................................................................................... 4
4. Technical Data .............................................................................................................................................. 5
4.1 Dimensions ................................................................................................................................................. 6
4.2 Scope of delivery ........................................................................................................................................ 6
5. Installation .................................................................................................................................................... 7
5.1 Liquid Level Measurement ........................................................................................................................ 7
5.2 Wiring .......................................................................................................................................................... 9
6. Putting into operation ................................................................................................................................. 10
6.1 Usage ........................................................................................................................................................ 10
7. Programming .............................................................................................................................................. 11
7.1 Measurement configuration .................................................................................................................... 11
7.2 Current output .......................................................................................................................................... 16
7.3 Digital communication ............................................................................................................................. 17
7.4 Measurement optimisation ...................................................................................................................... 17
7.5 Volume (content) measurement .............................................................................................................. 20
7.6 Open channel flow measurement ........................................................................................................... 21
7.7 32-Point-Linearisation ............................................................................................................................. 24
7.8 Information parameters (read out parameters) ..................................................................................... 25
7.9 Additional parameters of the flow metering ........................................................................................... 26
7.10 Other parameters ................................................................................................................................... 26
8. Maintenance ............................................................................................................................................... 26
9. Error codes ................................................................................................................................................. 27
10. Parameter table ........................................................................................................................................ 28
11. Sound velocity values in different gases .................................................................................................. 30
12. Article overview ......................................................................................................................................... 30
13. Disposal .................................................................................................................................................... 31
1
Instruction for use Safety and responsibility
1. Safety and responsibility
1.1 Intended use
The 2270 Ultrasonic Level Sensors are excellent tools for level measurement of liquids. Level
measurement technology based on the non-contacting ultrasonic principle is especially suited for
applications where, for any reason, no physical contact can be established to the surface of the material
to be measured.
1.2 Safety regulations for the Ex approved units
Diameter of the cable should match the cable conduit. The cable outside the unit should be fixed so that
it should be free of loading. The terminal box should be selected in accordance with the electrical class of
the area. Transmitter can only be powered by certified intrinsically safe current loop.
The enclosure of the transducer is plastic that can be loaded electrostatically therefore:
Filling and emptying speed should be selected according to the medium
Fog development of the dangerous material during filling should be avoided.
Cleaning of the plastic enclosure is not allowed in hazardous space.
The apparatus is not suitable for flame-barrier between the space and the outside area.
2. Transport and Storage
Transport and/or store product in unopened original packaging.
Protect product from dust, dirt, dampness as well as thermal and UV radiation.
Make sure that the product has not been damaged neither by mechanical nor thermal influences.
Check product for transport damages prior to the installation.
3. Design and Function
3.1 Design
2
Design and Function Instruction for use
3.2 Function
The ultrasonic level metering technology is based on the principle of measuring the time required for the
ultrasound pulses to make a round trip from the sensor to the level to be measured and back. The sensor
emits an ultrasonic pulse train and receives the echoes reflected. The intelligent electronic device
processes the received signal by selecting the echo reflected by the surface and calculates from the time
of flight the distance between the sensor and the surface which constitutes the basis of all output signals
of the 2270 Ultrasonic Level Sensor.
A Total beam angle of 5°-7° at –3 dB as is featured by transducers of transmitters and sensores ensuring
a reliable measurement in narrow silos with uneven side walls as well as in process tanks with various
protruding objects.
Furthermore, as a result of the narrow beam angle - the emitted ultrasonic signals have an outstanding
focusing - deep penetration through gases, vapour and foam is ensured.
XD
1 m 0,2 1 m
2 m 0,3 m
m
X
M
X
5 m 0,56 m
10 m 1 m
15m 1,45 m
rr
D
Diameters corresponding to 5° beam angle.
Minimum measuring distance (X
) is determined by the design of the unit within which the
m
measurement is not possible (Dead Zone) its value is according with P05. Since measurement is
impossible within this range material should not get into this zone
Maximum measuring distance (X
) is the greatest distance (determined by the design of the unit) which
M
can be measured by the unit under ideal conditions. (See parameter P04). Maximum measuring distance
of the actual application (H) must not be greater than X
.
M
3
Instruction for use Design and Function
3.3 Basic concepts and elements of the ultrasonic measurement
3.4 Identifikation
1
2
3
4
M226193
5
6
7
Type
1
Media temperature
2
Voltage
3
CE-marking
4
4
5
6
7
Serial code
Output
Ambient temperature
Technical Data Instruction for use
4. Technical Data
General
Type 2270-X-XX-4 2270-X-XX-6
Range 0.2 to 4 m / 0.65 to 13 ft 0.25 to 6 m / 0.82 to 20 ft
Total Beam Angle 6° 5°
Accuracy * ± (0.2 % of measured distance, 0.05 % of range)
Environmental
Process temperature –30 °C to 80 °C
Process pressure
(absolute)
0.03 to 0.3 MPa (0.3 to 3 bar)
Process connection 1 in. or 1½ in. BSP / NPT 1 in. or 2 in. BSP / NPT
Enclosure
Resolution (dep. on
distance)
<2 m: 1 mm, 2 to 5 m: 2 mm, 6 m: 5 mm
Ingress Protection IP 68 / NEMA 6P
Outputs 2-wire 4 to 20 mA, HART protocol,
max. 600 Ω
2-wire 4 to 20 mA, HART protocol,
max. 600 Ω
Electrical
Power Supply 11.8 to 36 V DC
Power Consumption 48 mW to 720 mW
Housing material PP or PVDF
Cable material Cable sealing: EPDM, cable isolation: PVC
Connection 6 x 0,5 mm2 shielded cable, Ø 6 mm; standard length 5 m (max. 30 m)
* Under optimal circumstances of reflection and stabilised transducer temperature.
Additional data for EX certified devices
Ex marking
II1G EEx ia IIB T6 IP68
Intrinsically safety data
≤ 15 nF, Li ≤ 200 H, Ui ≤ 30 V, Ii ≤ 140 mA, Pi ≤ 1 W
C
i
Ex-device should be powered by EEx ia power supply.
Ex power supply, loading
Medium temperature
< 30 V, I0 < 140 mA, P0 < 1 W, Voltage range 12…30 V,
U
0
= (Us – 12 V) / 0,02 A
R
t max
PP transducer –20 °C ... +70 °C,
PVDF transducer –20 °C ... +80 °C,
Ambient temperature -20 °C … +70 °C
5
Instruction for use Technical Data
4.1 Dimensions
Version 1 ½” BSP/ NPT Version 2” BSP/ NPT
1” BSP
16 22
Ø 96
1 ½” BSP
vagy NPT
BSP: 15, NPT: 22
60
4.2 Scope of delivery
Installation and Programming Manual
1” BSP
22
16
~199
Ø 96
2” BSP
vagy NP T
~199
BSP: 15 , NPT: 22
60
6
Installation Instruction for use
5. Installation
5.1 Liquid Level Measurement
Position
The optimal position of the Compact
Ultrasonic Level Transmitter Type 2260 is on
the radius
r = (0.3 … 0.5) R of the (cylindrical) tank / silo.
(Take also sonic cone on page 1 into
consideration.)
Sensor alignment
The sensor face has to be parallel to the surface of the liquid
within ± 2-3°.
Temperature
Make sure that the Ultrasonic Level Transmitter Type 2260 will be
protected against overheating by direct sunshine.
Obstacles
Make sure that no in-flow path or objects (e.g. cooling pipes,
ladders, bracing members, thermometers, etc.) or no tank wall of
the ragged surface protrude into the sensing cone of the
ultrasonic beam.
One fix object in the tank / silo that disturb the measurement can
be blocked out by the appropriate programming of the Ultrasonic
Level Transmitters Type 2260 – see parameter P29 “Blocking out
of disturbing object”
Foam
Foaming of the liquid surface may render ultrasonic level metering impossible. If possible, a location
should be found, where foaming is the least (device should be located as far as possible from liquid
inflow) or a stilling pipe or well should be used.
Sonnenschirm
7
Instruction for use Installation
Stand-off
The structure of the stand off pipe should be rigid; the inner rim where the ultrasonic beam leaves
the pipe should be rounded.
D
250
L
min
BSP/ NPT 1 ½” BSP/ NPT 2”
50 60
150
50 60
200
65 65
250
80 75
L
300
D 100
Dmin.
350
L
D 100
Dmin.
Wind
Intensive air (gas) movements in the vicinity of the ultrasonic cone is to be avoided. A strong draft of
wind may "blow away" the ultrasound. Devices with lower measuring frequency (40, 20 kHz) are
recommended.
Fumes/ Vapours
For closed tanks containing chemicals or other liquids, which creats fume/gases above the liquid
surface especially for outdoor tanks exposed to the sun, a strong reduction of the nominal measuring
range of the ultrasonic device is to be considered during device selection.
Devices with lower measuring frequency (40, 20 kHz) are recommended in these cases units.
8
Installation Instruction for use
5.2 Wiring
Make sure the terminals in the
box are not under power (Use
2
shielded cable 6 x 0.5 mm
suggested in the technical data
or stronger).
white
brown
black
After powering the necessary
programming can be
performed.
Connection
4 -20 mA
+ test output
Wire colours:
White - I+ one of the points of
current loop, power supply and
HART (polarity independent)
Brown - I- other point of current
loop, power supply and HART
(polarity independent)
Black - GND functional earthing
and shielding point
Junction box
Extension of the
integrated cable:
Should extension be
needed the use of
connection box is
suggested.
The shielding of the two
cables should be
connected and grounded
at the signal processing
device.
Connection
4 – 20 mA
+ HART
9
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