KROHNE OPTISONIC 7300 User manual

Ultrasonic process gas flowmeter
ER 1.1.7_
OPTISONIC 7300
OPTISONIC 7300OPTISONIC 7300
OPTISONIC 7300
Quick Start
Quick StartQuick Start
Quick Start
© KROHNE 09/2018 - 4002312802 - QS OPTISONIC 7300 R04 en

CONTENTS
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OPTISONIC 7300
1 Safety instructions 3
2 Installation 4
2.1 Scope of delivery............................................................................................................... 4
2.2 Device description ............................................................................................................ 5
2.3 Nameplates ...................................................................................................................... 6
2.3.1 Example of nameplate for the compact version .................................................................... 6
2.3.2 Example of nameplate for the flow sensor (remote version) ................................................ 6
2.3.3 Examples of nameplates on the signal converter (field housing) ......................................... 7
2.4 Storage ............................................................................................................................. 9
2.5 Transport .......................................................................................................................... 9
2.6 Pre-installation requirements ......................................................................................... 9
2.7 General requirements .................................................................................................... 10
2.7.1 Vibration ................................................................................................................................ 10
2.8 Installation requirements for the flow sensor............................................................... 10
2.9 Installation conditions ....................................................................................................11
2.9.1 Inlet and outlet ...................................................................................................................... 11
2.9.2 T-section ............................................................................................................................... 11
2.9.3 Control valve ......................................................................................................................... 12
2.9.4 Flange deviation.................................................................................................................... 12
2.9.5 Installation position .............................................................................................................. 13
2.9.6 Thermal insulation................................................................................................................ 14
2.10 Mounting the field housing, remote version ................................................................ 15
2.10.1 Pipe mounting ..................................................................................................................... 15
2.10.2 Turning the display of the field housing version ................................................................ 16
3 Electrical connections 17
3.1 Safety instructions.......................................................................................................... 17
3.2 Connection of signal cable to signal converter (remote version only).......................... 17
3.3 Power supply connection ............................................................................................... 19
3.4 Laying electrical cables correctly .................................................................................. 20
3.5 Inputs and outputs, overview ......................................................................................... 21
3.5.1 Combinations of the inputs/outputs (I/Os) ........................................................................... 21
3.5.2 Description of the CG number .............................................................................................. 22
3.5.3 Fixed, non-alterable input/output versions.......................................................................... 23
3.5.4 Alterable input/output versions............................................................................................ 24
4 Technical data 25
4.1 Dimensions and weight .................................................................................................. 25
4.1.1 Flow sensor in carbon steel.................................................................................................. 26
4.1.2 Signal converter housing ...................................................................................................... 30
4.1.3 Mounting plate of field housing ............................................................................................ 31

SAFETY INSTRUCTIONS 1
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Warnings and symbols used
HANDLING
• This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
i RESULT
RESULTRESULT
RESULT
This symbol refers to all important consequences of the previous actions.
Safety instructions for the operator
DANGER!
This information refers to the immediate danger when working with electricity.
DANGER!
These warnings must be observed without fail. Even partial disregard of this warning can lead to
serious health problems and even death. There is also the risk of seriously damaging the device
or parts of the operator's plant.
WARNING!
Disregarding this safety warning, even if only in part, poses the risk of serious health problems.
There is also the risk of damaging the device or parts of the operator's plant.
CAUTION!
Disregarding these instructions can result in damage to the device or to parts of the operator's
plant.
INFORMATION!
These instructions contain important information for the handling of the device.
CAUTION!
Installation, assembly, start-up and maintenance may only be performed by appropriately
trained personnel. The regional occupational health and safety directives must always be
observed.
LEGAL NOTICE!
The responsibility as to the suitability and intended use of this device rests solely with the user.
The supplier assumes no responsibility in the event of improper use by the customer. Improper
installation and operation may lead to loss of warranty. In addition, the "Terms and Conditions of
Sale" apply which form the basis of the purchase contract.
INFORMATION!
• Further information can be found on the supplied CD-ROM in the manual, on the data sheet,
in special manuals, certificates and on the manufacturer's website.
• If you need to return the device to the manufacturer or supplier, please fill out the form
contained on the CD-ROM and send it with the device. Unfortunately, the manufacturer
cannot repair or inspect the device without the completed form.

2INSTALLATION
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2.1 Scope of delivery
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
The field device will arrive in two cartons. One carton contains the converter and one carton
contains the sensor.
Make sure to combine the correct devices together by comparing the serial numbers
Figure 2-1: Scope of delivery
1 Ordered flowmeter
2 Product documentation
3 Factory calibration certificate
4 CD-ROM with product documentation in available languages
5 Signal cable (remote versions only)
INFORMATION!
Assembly materials and tools are not part of the delivery. Use the assembly materials and tools
in compliance with the applicable occupational health and safety directives.

INSTALLATION 2
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2.2 Device description
The ultrasonic flowmeters are designed exclusively for the continuous measurement of actual
volume flow, corrected volume flow, mass flow, molar mass, flow speed, velocity of sound, gain,
SNR and diagnosis value.
Your measuring device is supplied ready for operation. The factory settings for the operating
data have been made in accordance with your order specifications.
The following versions are available:
•Compact version (the signal converter is mounted directly on the flow sensor)
•Remote version (electrical connection to the flow sensor via signal cable)
INFORMATION!
Product specific information and extensive product specification is available using PICK, the
Product Information Center KROHNE web-tool.
PICK can be found via the service menu button on the KROHNE.com website.
Figure 2-2: Device versions
1 Compact version
2 Remote version

2INSTALLATION
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2.3 Nameplates
2.3.1 Example of nameplate for the compact version
2.3.2 Example of nameplate for the flow sensor (remote version)
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
1 Ambient temperature
2 Space for additional information
3 Protection class and Tag number
4 Main supply and PED data
5 Calibration data and electronics revision number (ER)
6 Info / web address and Rohs logo
7 Type designation and manufacturer date of the flowmeter / CE sign with number(s) of notified body / bodies
8 Name and address of the manufacturer
Figure 2-3: Example of nameplate
1 Ambient temperature
2 Protection class
3 Tag number
4 PED data
5 Calibration data
6 Type designation and manufacturer date of the flowmeter / CE sign with number(s) of notified body / bodies
7 Name and address of the manufacturer

INSTALLATION 2
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2.3.3 Examples of nameplates on the signal converter (field housing)
Figure 2-4: Example of nameplate
1 Ambient temperature
2 Space for additional information
3 Protection class and Tag number
4 Main supply and PED data
5 Calibration data and electronics revision number (ER)
6 Info / web address and Rohs logo
7 Type designation and manufacturer date of the flowmeter / CE sign with number(s) of notified body / bodies
8 Name and address of the manufacturer
PED/G1/III:
10
8.7
15
Altometer, Dordrecht
NL - 3313LC12

2INSTALLATION
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Electrical connection data of inputs/outputs (example of basic version)
Electrical connection data of inputs/outputs (example of basic version)Electrical connection data of inputs/outputs (example of basic version)
Electrical connection data of inputs/outputs (example of basic version)
•A = active mode; the signal converter supplies the power for connection of the subsequent
devices
•P = passive mode; external power supply required for operation of the subsequent devices
•N/C = connection terminals not connected
Figure 2-5: Example of a nameplate for electrical connection data of inputs and outputs
1 Power supply (AC: L and N; DC: L+ and L-; PE for t24 VAC; FE for d24 VAC and DC)
2 Connection data of connection terminal D/D-
3 Connection data of connection terminal C/C-
4 Connection data of connection terminal B/B-
5 Connection data of connection terminal A/A-; A+ only operable in the basic version
WARNING!
Do not use the terminals A+ and A- at the same time. The system will be damaged by the direct
voltage of 24 VDC and a 1 A peak current.

INSTALLATION 2
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2.4 Storage
•Store the device in a dry, dust-free location.
•Avoid continuous direct sunlight.
•Store the device in its original packaging.
•Storage temperature: -50...+70°C / -58...+158°F
2.5 Transport
Signal converter
•Do not lift the signal converter by the cable glands.
Flow sensor
•Do not lift the flow sensor by the connection box.
•Use hoisting belts only.
•To transport flange devices, use lifting straps. Wrap these around both process connections.
2.6 Pre-installation requirements
Make sure that you have all necessary tools available:
•Allen key (4 and 5 mm)
•Small screwdriver
•Wrench for cable glands and for pipe mounting bracket (remote version only); refer to
Mounting the field housing, remote version on page 15
Figure 2-6: Transport
INFORMATION!
To assure a quick, safe and uncomplicated installation, we kindly request you to make provisions
as stated below.

2INSTALLATION
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2.7 General requirements
2.7.1 Vibration
2.8 Installation requirements for the flow sensor
To secure the optimum functioning of the flowmeter, please note the following observations.
The OPTISONIC 7300 is designed for the measurement dry gas flow. Excess of liquids may
disturb the acoustic signals and should thus be avoided.
The following guidelines should be observed in case occasional small amounts of liquids are to
be expected:
•Install the flow sensor in a horizontal position in a slightly descending line.
•Orientate the flow sensor such that the path of the acoustic signal is in the horizontal plane.
For exchanging the transducers, please keep a free space of 1 m / 39" around the transducer.
INFORMATION!
The following precautions must be taken to ensure reliable installation.
• Make sure that there is adequate space to the sides.
• Protect the signal converter from direct sunlight and install a sun shade if necessary.
• Signal converters installed in control cabinets require adequate cooling, e.g. by fan or heat
exchanger.
• Do not expose the signal converter to intense vibrations.
Figure 2-7: Avoid vibrations
INFORMATION!
In case of expected vibrations, please install a field version.

INSTALLATION 2
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2.9 Installation conditions
2.9.1 Inlet and outlet
2.9.2 T-section
1 path flowmeter
Figure 2-8: Recommended inlet and oulet for dDN80 / 3"
1 t20 DN
2 t3DN
2 path flowmeter
Figure 2-9: Recommended inlet and oulet for tDN100 / 4"
1 t10 DN
2 t3DN
Figure 2-10: Distance behind a T-section
1 2 path t10 DN, 1 path t20 DN

2INSTALLATION
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2.9.3 Control valve
Install the flowmeter upstream of a control valve.
2.9.4 Flange deviation
CAUTION!
In case valve noise is expected (large pressure drop over valve or pressure reducer in the same
pipeline as the flowmeter), please contact the manufacturer.
Figure 2-11: Not recommended installation of the flowmeter and valve in the same pipeline
CAUTION!
Max. permissible deviation of pipe flange faces:
L
max
- L
min
d0.5 mm / 0.02"
Figure 2-12: Flange deviation
1 L
max
2 L
min

INSTALLATION 2
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2.9.5 Installation position
•Horizontal: install the flow sensor in a horizontal position in case of the presence of liquids.
•Vertically
+15
+15+15
+15°<
<<
< D< -15
< -15< -15
< -15°
•Horizontal or vertical: allowed installation position in case of dry gas.
Figure 2-13: Installation position
Figure 2-14: Horizontal and vertical installation

2INSTALLATION
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2.9.6 Thermal insulation
CAUTION!
The flow sensor can be insulated completely, except for the transducers 1and the connection
box 2to allow cooling by free air convection.
WARNING!
Always leave vent holes 3free!
DANGER!
For devices in hazardous area, additional maximum temperature and insulation precautions
apply. Please refer to the Ex documentation.
Figure 2-15: Leave vent holes free
1 Transducers
2 Connection box
3 Vent holes

INSTALLATION 2
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2.10 Mounting the field housing, remote version
2.10.1 Pipe mounting
1 Fix the signal converter to the pipe.
2 Fasten the signal converter using standard U-bolts and washers.
3 Tighten the nuts.
INFORMATION!
Assembly materials and tools are not part of the delivery. Use the assembly materials and tools
in compliance with the applicable occupational health and safety directives.
Figure 2-16: Pipe mounting of the field housing

2INSTALLATION
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2.10.2 Turning the display of the field housing version
The display of the field housing version can be turned in 90°increments
1 Unscrew the cover from the display and operation control unit.
2 Pull out the display and rotate it to the required position.
3 Slide the display back into the housing.
4 Re-fit the cover and tighten it by hand.
Figure 2-17: Turning the display of the field housing version
CAUTION!
The ribbon cable of the display must not be folded or twisted repeatedly.
INFORMATION!
Each time a housing cover is opened, the thread should be cleaned and greased. Use only resin-
free and acid-free grease.
Ensure that the housing gasket is properly fitted, clean and undamaged.

ELECTRICAL CONNECTIONS 3
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3.1 Safety instructions
3.2 Connection of signal cable to signal converter (remote version only)
The flow sensor is connected to the signal converter via one or two signal cables, with 2 inner
triax cables for the connection of one or two acoustic path(s). A flow sensor with one acoustic
path has one cable. A flow sensor with two acoustic paths has two cables.
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
DANGER!
Observe the national regulations for electrical installations!
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
Figure 3-1: Connection of signal cable to signal converter
1 Signal converter
2 Open connection box
3 Tool for releasing connectors
4 Marking on cable
5 Insert cable (1 path flowmeter) or cables (2 path flowmeter) through cable glands

3ELECTRICAL CONNECTIONS
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CAUTION!
To ensure smooth functioning, always use the signal cable(s) included in the delivery.
Figure 3-2: Clamp the cables on the shielding bush
1 Cables
2 Cable glands
3 Grounding clamps
4 Cable with metal shielding bush
Figure 3-3: Connect the cables on the signal converter
INFORMATION!
Connect the cable on connector with similar numeral marking

ELECTRICAL CONNECTIONS 3
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3.3 Power supply connection
WARNING!
When this device is intended for permanent connection to the mains.
It is required (for example for service) to mount an external switch or circuit breaker near the
device for disconnection from the mains. It shall be easily reachable by the operator and marked
as the disconnecting the device for this equipment.
The switch or circuit breaker and wiring has to be suitable for the application and shall also be in
accordance with the local (safety) requirements of the (building) installation
(e.g. IEC 60947-1/-3)
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
INFORMATION!
The power terminals in the terminal compartments are equipped with additional hinged lids to
prevent accidental contact.
Figure 3-4: Power supply connection
1 100...230 VAC (-15% / +10%), 22 VA
2 24 VDC (-55% / +30%), 12 W
3 24 VAC/DC (AC: -15% / +10%; DC: -25% / +30%), 22 VA or 12 W
DANGER!
The device must be grounded in accordance with regulations in order to protect personnel
against electric shocks.

3ELECTRICAL CONNECTIONS
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100...230 VAC (tolerance range for 100 VAC: -15% / +10%)
100...230 VAC (tolerance range for 100 VAC: -15% / +10%)100...230 VAC (tolerance range for 100 VAC: -15% / +10%)
100...230 VAC (tolerance range for 100 VAC: -15% / +10%)
•Note the power supply voltage and frequency (50...60 Hz) on the nameplate.
•The protective ground terminal PE
PEPE
PE of the power supply must be connected to the separate U-
clamp terminal in the terminal compartment of the signal converter
24 VDC (tolerance range: -55% / +30%)
24 VDC (tolerance range: -55% / +30%)24 VDC (tolerance range: -55% / +30%)
24 VDC (tolerance range: -55% / +30%)
24 VAC/DC (tolerance range: AC: -15% / +10%; DC: -25% / +30%)
24 VAC/DC (tolerance range: AC: -15% / +10%; DC: -25% / +30%)24 VAC/DC (tolerance range: AC: -15% / +10%; DC: -25% / +30%)
24 VAC/DC (tolerance range: AC: -15% / +10%; DC: -25% / +30%)
•Note the data on the nameplate!
•For measurement process reasons, a functional ground FE
FEFE
FE must be connected to the
separate U-clamp terminal in the terminal compartment of the signal converter.
•When connecting to functional extra-low voltages, provide a facility for protective separation
(PELV) (according to VDE 0100 / VDE 0106 and/or IEC 60364 / IEC 61140 or relevant national
regulations)
3.4 Laying electrical cables correctly
1 Lay the cable in a loop just before the housing.
2 Tighten the screw connection of the cable entry securely.
3 Never mount the housing with the cable entries facing upwards.
4 Seal cable entries that are not needed with a plug.
INFORMATION!
240 VAC + 5% is included in the tolerance range.
Figure 3-5: Protect housing from dust and water