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Handbook
Handbook
LS 6500
LS 6500
LS 6500LS 6500
Switch for level detection and dry-run protection
HandbookHandbook
© KROHNE 03/2013 - 4000649103 - MA LS 6500 R03 en
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: IMPRINT :::::::::::::::::::::::::::::::::::::::
All rights reserved. It is prohibited to reproduce this documentation, or any part thereof, without
the prior written authorisation of KROHNE Messtechnik GmbH.
Subject to change without notice.
Copyright 2013 by
KROHNE Messtechnik GmbH - Ludwig-Krohne-Str. 5 - 47058 Duisburg (Germany)
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LS 6500
CONTENTS
1 Safety instructions 5
1.1 Intended use ..................................................................................................................... 5
1.2 Certifications .................................................................................................................... 5
1.3 ATEX approval................................................................................................................... 5
1.4 Safety instructions from the manufacturer ..................................................................... 6
1.4.1 Copyright and data protection ................................................................................................ 6
1.4.2 Disclaimer ............................................................................................................................... 6
1.4.3 Product liability and warranty ................................................................................................ 7
1.4.4 Information concerning the documentation........................................................................... 7
1.4.5 Warnings and symbols used................................................................................................... 8
1.5 Safety instructions for the operator................................................................................. 8
2 Device description 9
2.1 Scope of delivery............................................................................................................... 9
2.2 System description........................................................................................................... 9
2.3 Nameplate ...................................................................................................................... 10
3 Installation 11
3.1 General notes on installation ......................................................................................... 11
3.2 Installation requirements .............................................................................................. 11
3.3 Process connection ........................................................................................................ 11
3.4 Mounting of 3A marked products................................................................................... 12
3.5 Installation of sliding connection ................................................................................... 13
4 Electrical connections 15
4.1 Safety instructions.......................................................................................................... 15
4.2 Description of electrical connection .............................................................................. 15
4.3 Electrical connection diagramms .................................................................................. 16
4.4 Electrical connection data for use in hazadous areas................................................... 17
4.5 Configuration tool........................................................................................................... 18
4.6 Teach-In function............................................................................................................ 20
5 Operation 22
5.1 Start-up........................................................................................................................... 22
5.2 Fault diagnosis and corrective action ............................................................................ 22
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CONTENTS
LS 6500
6 Service 23
6.1 Availability of services .................................................................................................... 23
6.2 Spare parts and accessories.......................................................................................... 23
6.3 Returning the device to the manufacturer..................................................................... 24
6.3.1 General information.............................................................................................................. 24
6.3.2 Form (for copying) to accompany a returned device............................................................ 25
6.4 Disposal .......................................................................................................................... 25
7 Technical data 26
7.1 Measuring principle........................................................................................................26
7.2 Technical data................................................................................................................. 27
7.3 Dimensions and weights ................................................................................................ 29
8 Notes 30
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LS 6500
1.1 Intended use
The LS 6500 is a hygienic level switch for level detection and dry-run protection for liquids and
solids. The device measures liquids such as water and beer and well as viscous and sticky
products such as honey or toothpaste. Even dry medias can be measured such as sugar or flour.
The measurement is precise and not affected by the mounting position.
Coating of the sensor or condensate are not detected.
DANGER!
The LS 6500 can be used in hazardous areas. For detailed information refer to ATEX approval on
and refer to
page 5
1.2 Certifications
CE marking
SAFETY INSTRUCTIONS 1
Electrical connection data for use in hazadous areas on page 17
.
The device fulfils the statutory requirements of the following EC directives:
• EMC specification acc. to EN 61326
• Vibration specification acc. to IEC 68-2-6, GL test 2
The manufacturer certifies successful testing of the product by applying the CE marking.
1.3 ATEX approval
The LS 6500 is approved for the use in hazardous areas in accordance with the current EC
directives with the following classifications:
• ATEX II 1D Ex tD A20 IP67 100°C (ITS09ATEX16872X)
• ATEX II 3G Ex nA II T 5 (pending)
• ATEX II 1G Ex ia IIC T5 (pending)
INFORMATION!
For further information refer to Electrical connection data for use in hazadous areas on page 17
.
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1 SAFETY INSTRUCTIONS
1.4 Safety instructions from the manufacturer
1.4.1 Copyright and data protection
The contents of this document have been created with great care. Nevertheless, we provide no
guarantee that the contents are correct, complete or up-to-date.
The contents and works in this document are subject to copyright. Contributions from third
parties are identified as such. Reproduction, processing, dissemination and any type of use
beyond what is permitted under copyright requires written authorisation from the respective
author and/or the manufacturer.
The manufacturer tries always to observe the copyrights of others, and to draw on works created
in-house or works in the public domain.
The collection of personal data (such as names, street addresses or e-mail addresses) in the
manufacturer's documents is always on a voluntary basis whenever possible. Whenever
feasible, it is always possible to make use of the offerings and services without providing any
personal data.
LS 6500
We draw your attention to the fact that data transmission over the Internet (e.g. when
communicating by e-mail) may involve gaps in security. It is not possible to protect such data
completely against access by third parties.
We hereby expressly prohibit the use of the contact data published as part of our duty to publish
an imprint for the purpose of sending us any advertising or informational materials that we have
not expressly requested.
1.4.2 Disclaimer
The manufacturer will not be liable for any damage of any kind by using its product, including,
but not limited to direct, indirect or incidental and consequential damages.
This disclaimer does not apply in case the manufacturer has acted on purpose or with gross
negligence. In the event any applicable law does not allow such limitations on implied warranties
or the exclusion of limitation of certain damages, you may, if such law applies to you, not be
subject to some or all of the above disclaimer, exclusions or limitations.
Any product purchased from the manufacturer is warranted in accordance with the relevant
product documentation and our Terms and Conditions of Sale.
The manufacturer reserves the right to alter the content of its documents, including this
disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable
in any way for possible consequences of such changes.
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LS 6500
1.4.3 Product liability and warranty
The operator shall bear responsibility for the suitability of the device for the specific purpose.
The manufacturer accepts no liability for the consequences of misuse by the operator. Improper
installation and operation of the devices (systems) will cause the warranty to be void. The
respective "Standard Terms and Conditions" which form the basis for the sales contract shall
also apply.
1.4.4 Information concerning the documentation
To prevent any injury to the user or damage to the device it is essential that you read the
information in this document and observe applicable national standards, safety requirements
and accident prevention regulations.
If this document is not in your native language and if you have any problems understanding the
text, we advise you to contact your local office for assistance. The manufacturer can not accept
responsibility for any damage or injury caused by misunderstanding of the information in this
document.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device. Special considerations and precautions are also described in the
document, which appear in the form of underneath icons.
SAFETY INSTRUCTIONS 1
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1 SAFETY INSTRUCTIONS
1.4.5 Warnings and symbols used
Safety warnings are indicated by the following symbols.
DANGER!
This information refers to the immediate danger when working with electricity.
DANGER!
This warning refers to the immediate danger of burns caused by heat or hot surfaces.
DANGER!
This warning refers to the immediate danger when using this device in a hazardous atmosphere.
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.
LS 6500
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.
LEGAL NOTICE!
This note contains information on statutory directives and standards.
• HANDLING
HANDLING
HANDLINGHANDLING
This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
i RESULT
RESULT
RESULTRESULT
This symbol refers to all important consequences of the previous actions.
1.5 Safety instructions for the operator
WARNING!
In general, devices from the manufacturer may only be installed, commissioned, operated and
maintained by properly trained and authorized personnel.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device.
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LS 6500
2.1 Scope of delivery
INFORMATION!
Inspect the cartons carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
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.
The following items are supplied with the device:
• Measuring device
• Hygienic adapter
• Product documentation
DEVICE DESCRIPTION 2
2.2 System description
Inputting physical quantities into an SPC or PLC or other computer and control systems requires
accurate and reliably working sensors. The sensor is a detecting element that converts physical
quantities, such as temperature, level, pressure, conductivity, turbidity and flow, into an
electrical signal. Locally further processed, usually by an integrated microcontroller, the
measuring signal can be transmitted by analogue (e.g. 4...20 mA loop). The LS 6500 is designed
to detect the level of liquids or for pump protecting purposes.
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2 DEVICE DESCRIPTION
2.3 Nameplate
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.
LS 6500
Figure 2-1: Example of non-Ex nameplate
1 Device type
2 Operating conditions (process pressure, process temperature and ambient temperature)
3 Electrical data
4 Serial number
5 Date of manufacture
6 Approvals and certifications
Figure 2-2: Example of Ex nameplate
1 Ex approval symbol
2 Ex relevant information
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LS 6500
3.1 General notes on installation
INFORMATION!
Inspect the cartons carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
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.
3.2 Installation requirements
• Use only the recommended sleeves or adapters. If other systems are used, no guarantee can
be given for proper functionality or leak-tightness.
• The connection thread must have direct electrical contact with the threaded sleeve and the
metal tank or pipe.
• Do not use Teflon or paper gaskets between switch and hygienic adapter. The PEEK sensor
together with the Stainless Steel adapter will perform a hygienic tightening. Assumed that
the requirements have been followed.
• The tightening torque for the sleeve should be 20...25 Nm (for sliding connection 25...30 Nm).
• If the tank or pipe is electrically non-conductive (e.g. plastic), the metal face of a screw-in
sleeve with a diameter of at least 28 mm / 1.1" will suffice as reference ground.
INSTALLATION 3
3.3 Process connection
The hygienic ½" process sleeve is easy to weld into tanks or pipes. The marking points to the
centre of the future position of the cable gland or M12 plug connector. This form of assembly
allows installation in conformity with standards of hygiene (to EHEDG, FDA).
Various hygienic adapter sleeves (refer to chapter "Accessories") are available for fitting to other
process connections. For more information refer to data sheet "Accessories".
The sensor can be installed in any desired position.
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3 INSTALLATION
3.4 Mounting of 3A marked products
The 3A mark is valid only when the product is mounted in a 3A marked counterpart and installed
acc. to the installation manual. Use also a 3A marked O-ring or gasket if relevant.
The 3A marked products conforms to the 3A sanitary standards criteria. Materials and surfaces
fulfil the FDA demands and are certified by EHEDG.
EPDM O-rings supplied with 3A marked products are conform to sanitary standards class II (8%
milk fat).
1 Use only 3A approved counterparts.
2 The inspection hole should be visible and drained. Face it downwards that leaking can be
observed.
3 Mount the device in a self-drained position.
4 Level the inner surface of the pipe with the counterpart.
5 Weld from the inside of the tank, if possible. Welds shall be free from cracks, crevices and
grooves. Weldings should be grinded to R
=0.8
a
LS 6500
12
Figure 3-1: Mounting of 3A products in pipe installations (A) or tank installations (B)
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LS 6500
3.5 Installation of sliding connection
The following drawing shows how the sliding connection can be used for at least 4 applications:
INSTALLATION 3
Figure 3-2: Possible applications for sliding connection
1 Mounted at the top of a tank to adjust to a certain level.
2 Serving as a cooling neck in high media temperature applications.
3 Adjusted to place the sensor tip deeper inside the tank (for lumpy or sticky media).
4 To reach in through insulation material.
CAUTION!
The LS 6500 with sliding connection can be mounted with a static pressure up to 16 bar / 232 psi.
To prevent personnel injuries, it is essential that the safety chain is mounted correctly and
undamaged.
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3 INSTALLATION
CAUTION!
It is essential that the max. ambient temperature for the electronics is never exceeded.
The operating conditions for the sliding connection in different media temperatures and
specified ambient temperatures can be found in the following drawing.
LS 6500
Figure 3-3: Media temperature versus external length of sliding connection
a = media temperature in [°C] or [°F]
b = external length of sliding connection in [mm] or ["]
= max. 40°C / 104°F
1 T
amb
= max. 60°C / 140°F
2 T
amb
3 T
= max. 75°C / 167°F
amb
4 T
= max. 85°C / 185°F
amb
Example, how to read the drawing:
A 250 mm / 9.9" sliding connection is mounted in a tank with a total insertion length of 150 mm /
5.9". Hence the external length of the sliding connection will be:
250 - 150 = 100 mm or 9.9 - 5.9 = 4".
The media temperature will be max. 160°C / 320°F.
Read the x-axis at 100 mm / 4" an the y-axis at 160°C / 320°F and find that the ambient
temperature must be kept below 40°C/ 104°F. In case the radiated heat from the tank will cause
a higher ambient temperature at the housing efficient insulation of the tank must be established.
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LS 6500
4.1 Safety instructions
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.
ELECTRICAL CONNECTIONS 4
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.
4.2 Description of electrical connection
Terminals 1 and 2 are used for supplying a DC voltage of 12...30 V (M12: terminal 1 and 3).
According to polarity, the output will switch to active or inactive when the sensor is immersed
(refer to connection diagram). The terminal wired to the negative pole is connected via an
internal protective diode to the housing.
The maximum power consumption is 70 mA (excluding load switched). This value should be
taken into account in connection with the recommended use of a fuse. An active switching output
(PNP) is available at terminal 5 (M12: terminal 4). The switching voltage is a minimum of 1 V
below the supply voltage. The maximum output current is 50 mA. At higher loads, the current is
limited accordingly. Damage through shorting cannot occur.
CAUTION!
When the top cover is removed, do not look directly at the LED with unshielded eyes or damage
to retina may occur!
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4 ELECTRICAL CONNECTIONS
4.3 Electrical connection diagramms
Description of normally open (NO) and normally closed (NC)
Normally open Normally closed
LS 6500
1 0mA
2 50 mA
3 LED
1 50 mA
2 0mA
3 LED
PNP
Normally open Normally closed
M12 M16 M12 M16
NPN
Normally open Normally closed
M12 M16 M12 M16
16
M12 plug
1: brown; 2: white; 3: blue; 4: black
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LS 6500
ELECTRICAL CONNECTIONS 4
Digital output
Normally open Normally closed
M16 M16
1 PLC
2 active high
1 PLC
2 active low
4.4 Electrical connection data for use in hazadous areas
Ex tD A20 IP67 100
Ex tD A20 IP67 100°C
Ex tD A20 IP67 100Ex tD A20 IP67 100
The LS 6500 must be installed in accordance with prevailing guidelines for zone 20 without
barrier.
Supply range: 12...30 VDC, max. 100 mA
Temperature class: T100; refer to following table
Ex nA II T 5 (pending)
Ex nA II T 5 (pending)
Ex nA II T 5 (pending)Ex nA II T 5 (pending)
The LS 6500 must be installed in accordance with prevailing guidelines for zone 2 without
barrier.
Supply range: 12...30 VDC, max. 100 mA
Temperature class: T1...T5; refer to following table
Ex ia IIC T5 (pending)
Ex ia IIC T5 (pending)
Ex ia IIC T5 (pending)Ex ia IIC T5 (pending)
The LS 6500 must be installed in accordance with prevailing guidelines for zone 0 with
A certified Ex ia or isolation barrier with the max. values
=30VDC,
U
max
=0.1A,
I
max
P
=0.75W
max
must be used.
Supply range: 12...30 VDC, max. 100 mA
Temperature class: T1...T5; refer to following table
C
CC
without a
withoutwithout
without a
withoutwithout
with a barrier.
withwith
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4 ELECTRICAL CONNECTIONS
LS 6500
Connection type T
Standard and DN38
connection
Sliding connection
100 mm / 3.9"
Sliding connection
250 mm / 9.8"
1 If the sensor tip at the device is the only part in contact with the media.
2 Max. allowed medium temperature.
4.5 Configuration tool
The configuration tool can be ordered optionally to configure the LS 6500 switches.
Scope of delivery:
• Interface unit
• CD with software and product drivers (DTM)
• USB cable
• Cable with 2 alligator clips
amb
Max. medium temperature Note
[°C] [°F] [°C] [°F]
-40...+85 -40…+185 +85 +185 -
-40...+60 -40...+140 +95 +203 1
-40...+40 -40...+104 +115 +239 1
-40...+85 -40…+185 +85 +185 -
-40...+60 -40...+140 +150 +302 1
-40...+40 -40...+104 +175 +347 1
-40...+85 -40…+185 +85 +185 -
-40...+60 -40...+140 +195 383 1
-40...+40 -40...+104 +200 +392 1, 2
The configuration tool connects the LS 6500 with a computer. With the corresponding software,
it is possible to get an online communication with the LS 6500.
By using this tool, device information like serial number, switching point range and tag numbers
are displayed on the computer. Settings as switching point, damping, polarity and output can be
changed.
Self-learning function for the contact output is possible as well as reset function to the default
values of the switching point.
By fine-tuning of the switching point settings, LS 6500 could differentiate between various
products which are covering the sensor. In other words, the device could be set to trigger on a
specific product and ignore a second product. Basis for this would be a different ε
value of these
r
two products.
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LS 6500
ELECTRICAL CONNECTIONS 4
DANGER!
Disconnect the power supply before connecting the configuration tool to the switch!
Figure 4-1: Electrical connection of configuration tool
a = red alligator clip
b = black alligator clip
INFORMATION!
°
Ambient temperature range is 0...+50
C / +32...+122°F.
DANGER!
The configuration tool cannot be connected to the LS 6500 within the hazardous area. For
programming, remove the device out of this area.
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4 ELECTRICAL CONNECTIONS
4.6 Teach-In function
A Teach-In procedure may be necessary for a medium with a low dielectric constant.
1 12...36 VDC / - or (+)
2 Sensor
3 Output
4 Teach-In
5 Cover
6 12...36 VDC / + or (-)
LS 6500
Step Action LED Result
1 Connect terminal "Teach-In" to -
VDC (T1 or T2) for 3.5 s.
2 With "no media present" connect
"Teach-In" to -VDC shortly.
3 With "media present" connect
"Teach-In" to -VDC shortly.
Flash 1 time per second. Ready for Teach-In.
Light for 2 seconds and then
flash.
Light for 2 seconds. Register "full"state, store and
Register "empty" state.
If the media is sticky, foamy,
powdery or in other ways leaving
parts of the media at the sensor
tip this situation has to be
established also during the
Teach-In process. Otherwise a
faulty calibration can be the
result.
return to normal operation with
the new settings
If the media is sticky, foamy or powdery or in other ways leaving parts of the media at the sensor
tip, this situation has to be established also during the Teach-In process.
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LS 6500
ELECTRICAL CONNECTIONS 4
CAUTION!
•
Make sure that power is on before Teach-In.
•
For best Teach-In it is important that the actual process conditions are simulated.
•
During Teach-In mode the light intensity of the LED will decrease to protect your eyes.
If Teach-In for some reason do not succeed, the device will enter "Error State" and reload factory
settings automatically. This state is indicated by a blinking LED (3 short and 1 long blink). The
error can normally be fixed by powering off and on. Alternatively remake the "Teach-In"
procedure.
The factory settings can always be reloaded by connecting the terminal "Teach-In" to -VDC for
more then 6.5 s. The reloaded factory settings will be confirmed by pulsing light intensity 3
times.
INFORMATION!
Please observe that the LS 6500 has been factory adjusted to measure liquids with ε
oil.
In case the media has a lower ε
value (e.g. powder) either a Teach-In procedure must be carried
r
out for the media or alternatively a manual adjustment using the configuration tool can be done.
The adjustment must be made at the medias operating temperature to avoid faulty
measurements due to temperature drift.
> 2, such as
r
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5 OPERATION
5.1 Start-up
Before connecting to power, please check that the system has been correctly installed.
This includes:
• The device must be mechanically safe and mounted in compliance with the regulations.
• Check the leak-tightness at the sleeve.
• Make sure that the cable gland is tight or, as the case may be, the M12 plug is properly
screwed down.
• The power connections must have been made in compliance with the regulations.
• Check that the electrical operating data of the power supply are correct.
• Switching on the power.
i Check for correct switching function.
5.2 Fault diagnosis and corrective action
LS 6500
Fault Cause Action / elimination
LED not "on" Sensor cap not in contact with
liquid product
Supply voltage < 12 V, permittivity
too low
No switching output Cable break Check continuity of cables
Incorrect polarity of supply Reverse terminals 1 and 2 (M12:
Short-circuit Check wiring
-
Measure voltage at Pin 1 and 2
(M12: pin 1 and 3)
terminal 1 and 3)
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LS 6500
6.1 Availability of services
The manufacturer offers a range of services to support the customer after expiration of the
warranty. These include repair, maintenance, technical support and training.
INFORMATION!
For more precise information, please contact your local sales office.
6.2 Spare parts and accessories
This device contains no replaceable parts. In case of malfunction the device must be returned to
the manufacturer. Refer also to chapter "Returning the device to the manufacturer".
Accessories
Designation Type
Weld-in sleeve HWN 200
Liquiphant adapter sleeve G1", shape "G" HLM 200
Liquiphant assembly kit Rd 52, shape "F" HLS 210
Varivent flange version N HVF 250
Sanitary pipe assembly kit DN25 HMT 225
Sanitary pipe assembly kit DN50 HMT 250
Tri-Clamp flange 2", DN50 DIN 32676, ISO 40/51 mm HTC 250
SERVICE 6
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6 SERVICE
6.3 Returning the device to the manufacturer
6.3.1 General information
This device has been carefully manufactured and tested. If installed and operated in accordance
with these operating instructions, it will rarely present any problems.
CAUTION!
Should you nevertheless need to return a device for inspection or repair, please pay strict
attention to the following points:
•
Due to statutory regulations on environmental protection and safeguarding the health and
safety of our personnel, manufacturer may only handle, test and repair returned devices that
have been in contact with products without risk to personnel and environment.
•
This means that the manufacturer can only service this device if it is accompanied by the
following certificate (see next section) confirming that the device is safe to handle.
CAUTION!
If the device has been operated with toxic, caustic, flammable or water-endangering products,
you are kindly requested:
•
to check and ensure, if necessary by rinsing or neutralising, that all cavities are free from
such dangerous substances,
•
to enclose a certificate with the device confirming that is safe to handle and stating the
product used.
LS 6500
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LS 6500
6.3.2 Form (for copying) to accompany a returned device
Company: Address:
Department: Name:
Tel. no.: Fax no.:
Manufacturer's order no. or serial no.:
The device has been operated with the following medium:
SERVICE 6
This medium is: water-hazardous
toxic
caustic
flammable
We checked that all cavities in the device are free from such
substances.
We have flushed out and neutralized all cavities in the
device.
We hereby confirm that there is no risk to persons or the environment through any residual media
contained in the device when it is returned.
Date: Signature:
Stamp:
6.4 Disposal
CAUTION!
Disposal must be carried out in accordance with legislation applicable in your country.
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7 TECHNICAL DATA
7.1 Measuring principle
A high frequency signal sweep is radiated from the sensor tip into the tank / pipe. The medium
will act as a virtual capacitor, which together with a coil in the sensor head, will form a circuit
creating the switching point signal. This virtual capacity will depend of the dielectric value of the
medium and it is well defined for most media.
The measurement is precise and unaffected by the mounting position.
LS 6500
1 Tank wall / pipe wall
2 Medium
3 Line of electric flux
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LS 6500
TECHNICAL DATA 7
7.2 Technical data
INFORMATION!
•
The following data is provided for general applications. If you require data that is more
relevant to your specific application, please contact us or your local sales office.
•
Additional information (certificates, special tools, software,...) and complete product
documentation can be downloaded free of charge from the website (Download Center).
Measuring system
Measuring principle Electromagnetic wave, 100..180 MHz
Application range Level detection, dry-run protection and media separation of liquids and
Design
Construction The measurement system consists of a measuring sensor and the electronic
Options Sliding connection / extension for high-temperature applications
Accessories Comprehensive range of adapters and process connections for hygienic
solids.
unit which is available in a compact version. The switching point is signalled
by a blue LED indication through the housing cover.
Teach-In function for applications where the medium is hard to detect.
installation. Please refer to the specific data sheet "Accessories".
Measuring accuracy
Resolution ±1 mm / ±0.04"
Hysteresis ±1 mm / ±0.04"
Reference conditions acc. to EN 60770
Reference conditions acc. to EN 60770
Reference conditions acc. to EN 60770Reference conditions acc. to EN 60770
Temperature +20°C ±5°C / +70°F ±10°F
Pressure 1013 mbar abs. ±20 mbar / 14.69 psig ±0.29 psig
Relative air humidity 60% ±15%
Operating conditions
Temperature
Temperature
TemperatureTemperature
Ambient temperature (T
Process temperature -40…+85°C / -40…+185°F (short version and DN38 connection)
Pressure
Pressure
PressurePressure
Ambient pressure Atmosphere
Process pressure Standard and DN38 connection: max. 40 bar / 580 psi
Other conditions
Other conditions
Other conditionsOther conditions
Protection category
(acc. to EN 60529)
) -40…+85°C / -40…+185°F
amb
< 1 hour, T
-40 …+200°C / -40...+392°F (with sliding connection)
Sliding connection: max. 16 bar / 232 psi
IP67 equivalent to NEMA 4X
< 60°C / 140°F: -40…+140°C / -40…+284°F
amb
Installation conditions
Installation In any position. For detailed information refer to chapter "Installation".
Dimensions and weights For detailed information refer to chapter "Dimensions and weights".
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7 TECHNICAL DATA
LS 6500
Materials
Sensor housing Stainless Steel 1.4301 / 304
Process connection Stainless Steel 1.4404 / 316L
Sensor insulation Virgin PEEK, FDA conform
Electrical connection Cable gland M16: Plast or Nickel-plated brass
Plug M12: Nickel-plated brass
Process connections
Standard Hygienic G½; DN38
Other For other hygienic process connections, e. g. Tri-clamp, 11851, Varivent see
data sheet "Accessories".
Electrical connections
Power supply Non-Ex / Ex nA: 12…36 VDC, 70 mA max.
Ex: 12…30 VDC, 70 mA max.
Power consumption 1.7 W
Power-up time <2s
Reaction time Max. 0.1 s
Damping 0...10 s
Cable entry M16 cable gland or M12 (4 pole Lumberg)
Output
Output (active) Max. 50 mA, short-circuit and high-temperature protected
Output type PNP, NPN or digital output
Output polarity See drawing in chapter "Electrical connection".
Active "Low" NPN and digital output; (-VDC + 2.5 V) ± 0.5 V; R
Active "High" PNP and digital output; (VDC - 2.5 V) ± 0.5 V; R
Factory settings Measure: εr>2; damping: 0.1s
load
load
=1kOhm
=1kOhm
Approvals and certifications
CE This device fulfils the statutory requirements of the EC directives.
ATEX ATEX II 1G Ex ia IIC T5 (pending)
Other standards and approvals
Other standards and approvals
Other standards and approvalsOther standards and approvals
Electromagnetic compatibility (EMC) EN 61326
Vibration resistance IEC 68-2-6, GL test 2 (standard and DN38 connection)
Hygiene 3A for G½ and DN38, FDA conform materials
The manufacturer certifies successful testing of the product by applying the
CE marking.
ATEX II 3G Ex nA II T 5 (pending)
ATEX II 1D Ex tD A20 IP67 100°C
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LS 6500
7.3 Dimensions and weights
G½" hygienic connection, DN38 hygienic connection and G½" hygienic sliding
connection (from left to right)
TECHNICAL DATA 7
1 M12x1 plug
2 M16x1.5 cable gland
3 WS 22
4 G½"
5 PEEK tip
6 Sliding connection length (refer to ordering data)
7 Safety chain
8 G½" hygienic sliding nipple
Dimensions Approx. weight
[mm] [inches] [kg] [lb]
G
G½" hygienic connection
" hygienic connection
GG
" hygienic connection" hygienic connection
a Ø55 Ø2.17 0.4 0.9
b 18 0.71
c 44 1.73
d 58 2.28
DN38 hygienic connection
DN38 hygienic connection
DN38 hygienic connectionDN38 hygienic connection
a Ø55 Ø2.17 0.4 0.9
b 31.5 1.20
c 19 0.70
d 58 2.28
The weight for devices with sliding connection depends on the ordered length of the sliding
connection (max. 0.5 kg / 1.1 lb).
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8 NOTES
LS 6500
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LS 6500
NOTES 8
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KROHNE product overview
• Electromagnetic flowmeters
• Variable area flowmeters
• Ultrasonic flowmeters
• Mass flowmeters
• Vortex flowmeters
• Flow controllers
• Level meters
• Temperature meters
• Pressure meters
• Analysis products
• Products and systems for the oil & gas industry
• Measuring systems for the marine industry
Head Office KROHNE Messtechnik GmbH
Ludwig-Krohne-Str. 5
47058 Duisburg (Germany)
Tel.:+49 (0)203 301 0
Fax:+49 (0)203 301 10389
info@krohne.de
The current list of all KROHNE contacts and addresses can be found at:
© KROHNE 03/2013 - 4000649103 - MA LS 6500 R03 en - Subject to change without notice.
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