Alfalaval TE67H User manual

Instruction Manual
Alfa Laval Potentiometric Level Transmitter (TE67H)
TE91K021-EN5
ESE01750EN
Date of issue: October 2019
First published: 2010

Page 2 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
Table of contents
1. EC Declaration of conformity...........................................................................................3
2. Safety..................................................................................................................................4
2.1. Important information ................................................................................................................. 4
2.2. Warning signs............................................................................................................................. 4
2.3. Safety instructions ...................................................................................................................... 5
3. General description...........................................................................................................6
3.1. Working principle of the potentiometric level transmitter ............................................................6
3.2. Response time (time constant) ................................................................................................... 6
3.3. Recycling information ................................................................................................................. 7
4. Technical specifications ..................................................................................................8
4.1. Technical specifications.............................................................................................................. 8
5. Installation..........................................................................................................................9
5.1 Mechanical installation ................................................................................................................ 9
5.2 Electrical installation .................................................................................................................. 12
6. Setup.................................................................................................................................13
6.1 Manual teach-in ......................................................................................................................... 13
7. Dimensional Drawings....................................................................................................14
7.1 Dimensional drawings ............................................................................................................... 14
8. Troubleshooting ..............................................................................................................15
8.1 Troubleshooting......................................................................................................................... 15
9. Ordering............................................................................................................................16
9.1 Ordering key table ..................................................................................................................... 16
9.2 Certificates table....................................................................................................................... 17
10. General information........................................................................................................ 18
10.1 Service / Repair ....................................................................................................................... 18
10.2 Warranty.................................................................................................................................. 18
10.3 How to contact Alfa Laval Kolding A/S ....................................................................................18

Page 3 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
1. EC Declaration of Conformity
The designated company
hereby declare that
is in conformity with
- the EMC directive 2004/108/CE
- FDA 21CFR177.2415
and the following EU directives:
- EN61000-6-2, EN61000-6-3, Pressure Directive 2014/68/EU, EN10/2011, 1935/2004, 2023/2006
The person authorised to compile the technical file is the signer of this document.
This Declaration of Conformity replaces Declaration of Conformity dated 2019-02-01
Alfa Laval Kolding A/S
Company name
Albuen 31, 6000 Kolding, Denmark
Address
[phone]
Phone no.
Alfa Laval Potentiometric Level Transmitter TE67Hxxxxxxxxx
Denomination Type
valid for serial numbers from 2019-00001 and subsequent serial numbers.
Global Product Quality Manager
Pumps, Valves, Fittings and
Tank Equipment Lars Kruse Andersen
Title Name Signature
April 1, 2019 Kolding
Date Place

Page 4 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
2. Safety
2.1 Important information
Always read the manual before using the potentiometric level transmitter
WARNING
Indicates that special procedures must be followed to avoid severe personal injury.
CAUTION
Indicates that special procedures must be followed to avoid damage to the potentiometric level transmitter.
NOTE
Indicates important information to simplify or clarify procedures.
Unsafe practices and other important information are emphasized in this manual.
Warnings are emphasized by means of special signs. All warnings in the manual are summarized on this page.
Pay special attention to the instructions below so that severe personal injury or damage to the transmitter is avoided.
2.2 Warning signs
General warning:
Dangerous electrical voltage:
Caustic agents:

Page 5 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
2. Safety
2.3 Safety instructions
This instrument is built and tested according to the current EU-directives and packed in technically safe condition.
In order to maintain this condition and to ensure safe operation, the user must follow the hints and warnings given in
this instruction.
During the installation the valid national rules have to be observed. Ignoring the warnings may lead to severe personal
injury or substantial damage to property.
The product must be operated by trained staff. Correct and safe operation of this equipment is dependent on proper
transport, storage, installation and operation.
All electrical wiring must conform to local standards. In order to prevent stray electrical radiation, we recommend
twisted and shielded input cables, as also to keep power supply cables separated from the input cables. The
connection must be made according to the connecting diagrams.
Before switching off the supply voltage check the possible effects on other equipment and the processing system.
Ensure that the supply voltage and the conditions in the environment comply with the specification of the device.
This instruction manual is part of the device, must be kept nearest its location, always accessible to all employees.
This instruction manual is copyrighted. The contents of this instruction manual reflect the version available at the time
of printing. It has been issued to our best knowledge. However, errors may have occurred. Alfa Laval Kolding A/S is
not liable for any incorrect statements and their effects.
– Technical modifications reserved – Limitation of liability
By non-observance of the instruction manual, inappropriate use, modification or damage, no liability is assumed and
warranty claims will be excluded.
Unsafe practices and other important information are emphasized in this manual.
Warnings are emphasized by means of special signs. All warnings in the manual are summarized on this page.
Pay special attention to the instructions below so that severe personal injury or damage to the transmitter is avoided.

Page 6 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
3. General Description
3.1 Working principle of the potentiometric level transmitter
3.3 Recycling information:
 Unpacking
 Packing material consists of plastic and cardboard boxes.
 Cardboard boxes can be reused, recycled or used for energy recovery.
 Plastics should be recycled or burnt at a licensed waste incineration plant.
 Maintenance
 During maintenance seals and O-ring should be replaced (only on clamp connections).
 All metal parts should be sent for material recycling.
 Worn out or defective electronic parts should be sent to a licensed handler for material recycling.
 Oil and all non metal wear parts must be taken care of in agreement with local regulations.
 Scrapping
 At end of use, the equipment shall be recycled according to relevant, local regulations. Beside the equipment
itself, any hazardous residues from the process liquid must be considered and dealt with in a proper manner.
When in doubt, or in the absence of local regulations, please contact the local Alfa Laval sales company.
3.3 General description
The liquid is stored in a ground connected tank.
The immersed level probe is a low resistance rod where the ends are powered by an AC
generator operating in the lower kilohertz frequency range. Between the rod and the tank wall
is an endless amount of high level resistances. Since they connect to the same potential (the
tank wall) they can be shown as two equivalent resistances, R1 and R2 connected to an im-
aginary center point. A high resistance input amplifier is connected between the generator
and the tank wall. Since the generator is supplying a high range current it will create a signifi-
cant voltage drop across the low resistance rod. The resistances R1 and R2 form a voltage
divider in range of the immersed part of the rod. Output from this divider will indicate half the
level of the liquid. The amplifier then calculate the actual level of the liquid from 0 to 100%.
The formula is: Uout= 1/2 x media level (%) x Ugen
Media level (%) = Uout/Ugen x 2
The level measurement is insensitive to adhesion.
Caution: It is very essential that the media conductivity is homogeneous.
Otherwise R1 will not be equal to R2 and the output voltage will be influenced.
Ugen
0%
Uout
to amplifier
100%
Level = x %
R1
R2
The Level measuring device utilises the potentiometric measurement principle and can be used in all medias that have
a minimum conductivity of 50 μS/cm.
From the low resistive measuring rod a high frequent current is fed through the media to the tank wall. The voltage be-
tween the tip of the rod and the tank wall is measured. This output voltage is proportional to the tank filling level.
The measurement is unaffected by temperature and adhesive media.
The instrument is ideal for measurements in small vessels with tough, pasty or strong adhesive media, such as ketchup,
honey, and toothpaste.
The integrated electronics provide a 4...20 mA output.
The Alfa Laval Potentiometric Level Transmitter TE67H has automatic recognition of top/buttom mounting position.
Even angled installation is possible. In a non-conductive tank such as a plastic tank a reference rod must be installed.
Please observe that a non-linear conductivity in the media will affect the accuracy of the measurement.
A version with separate rod sensor and electronics is available for applications where the ambient temperature at the
measuring point exceeds 60°C. Due to the high temperature limit the Alfa Laval Potentiometric
Level Transmitter is well suitable for CIP and SIP processes.
The hygienic installation is guaranteed by using the e.g. a clamp connection.

Page 7 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
4. Technical specifications
4.1 Potentiometric Level Transmitter
Technical specifications
Ambient conditions
Operating temperature range -20 ... 140 °C
Storage temperature range -20 ... 60 °C
Humidity (IEC 68-2-38) < 98 % RH, condensing
Protection class (IEC 60529) IP67
IP69K (with appropriate cable)
Vibration IEC 60068-2-6
GL Test 2
Process connection
Connection variants Refer to dimensional drawings (page 14)
Mounting position Any (top, bottom, angled)
Wetted parts material PEEK Natura
AISI 316L (1.4404)
Surface roughness wetted parts Ra < 0.8 μm
Process conditions
Process temperature -20 ... 140 °C
Process pressure 16 bar
Electrical connection
Electrical connection
Connector variants M12 plug, 4 pin, stainless steel
M16 cable gland, polyamide or stainless steel
Power supply
Voltage supply range 18 ... 36 V DC
Current consumption (no load) 200 mA
Reverse polarity protection Yes
Response time 10 ms
Output signalization
Output 4-20 mA, max. 500 Ω
Short circuit protection Yes
Repeatability ± 0,1% FS
Accuracy ± 0,5% FS
Input resolution 15 bit
Media
Minimum conductivity 50 µS/cm
Measuring rod length 20...300 cm
Weight
Compete unit App. 1.500 gram

Page 8 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
4. Technical specifications
Compliance and approvals
Apply to
EMC directive 2004/108/CE
EU directives EN61000-6-2, EN61000-6-3, Pressure Directive 2014/68/
EU, EN10/2011, 1935/2004, 2023/2006
FDA FDA 21CFR177.2415
Approvals
Hygienic 3-A Standard 74-07 on some models, see Chapter 9
Optional EN 10204-3.1 material certificate
4.1 Potentiometric Level Transmitter

Page 9 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
5. Installation
5.1 Mechanical Installation
Cautions
The sensor rod can not be shortened.
Use the authorised special designed connection accessories only .
The product warranty is void if installed with other adapters.
Please be aware of the active measuring zone on the rod (see drawing page 13)
Do not use teflon, paper or other gaskets.
The process connection must have electrical contact with the tank. If not, a separate grounding cable must be installed.
If the tank is non-conductive an additional ground electrode must be installed. This should have electrical connection to
the sensor process connection.
Make sure that the rod can not touch the tank wall even with the highest movement of the media.
When installed <100 mm from the tank wall the rod must be parallel with the tank wall.
For larger distances non-parallelity can be allowed.
Mounting with Clamp DN38/DN51 (ISO2852):
The TE67H is available with either a DN38 or a DN51 clamp connection.
To ensure a correct measurement it is important to follow the guidelines of the installation.
When using a ISO2852 ferrule,it is important that the gasket is placed correctly to ensure a tight connection.
Follow these guidelines to ensure a good connection:
 Always position the ferrule in a self draining position
 All weldings should be grinded to Ra = 0,8 µm
These standard Alfa Laval ferrules are recomended for the TE67H:
Item number
304L, 1.4307 Item number 316L, 1.4404 Size Dimensions OD/ID x t Depth: (H)
9611310201 9166310200 DN38 (ISO2852) 38,6/35,6 x 1,5 21,5 mm.
9611310211 9166310210 DN51 (ISO2852) 51,6/48,6 x 1,5 21,5 mm.
H
OD
ID
Mounting with DIN 11851 connection with union nut.
The TE67H is available with either a DN32, DN40 or DN50 DIN 11851 union connection.
To ensure a correct measurement it is important to follow the guidelines of the installation.
Follow these guidelines to ensure a good connection:
 Always position the ferrule in a self draining position
 All weldings should be grinded to Ra = 0,8 µm

Page 10 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
5. Installation
Mounting with Unique Flexbody Connection:
The TE67H is available with the Unique Flexbody connection which offer a 100% flush connection in tanks. .
Mounting with 3-A approved welding adaptor
For the TE67H06xxxxxxx to be compliant to 3-A it must be installed in the welding adaptor
TE67N000000010. The TE67N000000010 welding adaptor can be fitted on the top of the
tank.
It is important that the installation comply to 3-A regulations which means that:
 Only 3-A approved welding adaptor is to be used (TE67N000000010)
 The inspection hole should be visible and drained
 Mount the adapter in a self-drained position/angle
 The 3-A mark or the arrow shall be placed upwards
 Welding should be grinded to Ra=0.8
 Welding according to appropriate 3-A standard
TE67N000000010 is also available with (these are not included in the 3-A authorization):
Electropolishing: TE67N000000017
3.1 certificate: TE67N000000028
Electropolishing + 3.1 certificate: TE67N000000035
.
23
ø05

Page 11 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
5.2 Electrical installation
1: Brown Supply (–)
2: White Teach in
3: Blue Supply (+)
4: Black Output, PNP
M12 plug M16 cable gland
5. Installation

Page 12 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
6. Setup
6.1 Manuall Teach-In
Make sure that power is on before Teach-In.
The green LED indicates that a supply voltage > 18 V with the correct polarity is present.
The two red LEDs show different flashing rates according to the control of the 4...20 mA output.
The sensor can be installed in the top or the button of the tank.
The sensor is calibrated for installation from the top. Then 4 mA output corresponds to the tip
of the rod, and 20 mA to the thread end.
When installed from the button of the tank an output excessive of 4 mA is obtained.
The sensor can be calibrated by pressing one of the two set point keys for more than 3 seconds.
The relevant LED will show a steady light.
With these two buttons any empty/full level can be configured on the entire length of the rod.
The factory setting will be valid again by pressing both keys for more than 3 seconds.
The “dry” signal level is adjusted together with the low level setting.
The “dry” indication is 2.4 mA output current.
Example: Caution
If different medias are used the low level adjust-
ment should be made with the media having the
least conductivity.
Caution
The minus pole of the power supply is
connected to the housing via a protective diode.
However, the 4...20 mA output is galvanically
isolated from the power supply.
5
Active length
Insertion length — L
4 mA
20 mA
2,6 mA
20

Page 13 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
7.1 Dimensional Drawings
7. Dimensional Drawings
Ø 89
92
20 … 3000 cm
G 1 A (TE67H06xxxxxxx)
PEEK
M12-4 plug
or
M16 cable gland
Clamp DN 38 (ISO2852) / Clamp DN 40 (DIN32676)
(TE67H01xxxxxxx)
DN 32 (DIN11851)
(TE67HxAxxxxxxx)
DN 40 (DIN11851)
(TE67HxBxxxxxxx)
DN 50 (DIN11851)
(TE67HxCxxxxxxx)
ø46
24,5
ø05
23
ø65
23
ø56
23
50,5ø
24,5
Clamp DN 51 (ISO2852) / Clamp DN 50 (DIN32676)
(TE67H02xxxxxxx)
DN 50 (DIN11851)
(TE67HxCxxxxxxx)
23
ø05
Unique Flexbody, type N, DN 40 …
DN 125

Page 14 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
8. Troubleshooting
No electrical output from the sensor
In case of no electrical signal from the sensor please follow this checklist for identifying the problem.
 Loosen and remove the cover.
 Measure if there is 10-35 VDC on the two supply terminals to make sure that there is power to the sensor.
 Check if wiring is according to the scedule on p. 14.
If all of these points is checked, then the sensor may have an error and need to be returned to Alfa Laval for repair.
8.1 Troubleshooting

Page 15 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
9. Ordering
9.1 Ordering Key Table
TE67H Potentiometric Level Transmitter
Ordering key table Alfa Laval Potentiometric Level Transmitter
Description Option Item nr. code
Basic price Basic instrument TE67Hxxxxxxxxx
Measuring Range N/A TE67H0xxxxxxxx
Process connection Clamp DN 38 (ISO2852)
Clamp DN 40 (DIN32676) TE67Hx1xxxxxxx
Clamp DN 50 (ISO2852)
Clamp DN 51 (DIN32676) TE67Hx2xxxxxxx
G1" (ISO228) TE67Hx6xxxxxxx
DN 32 (DIN11851) TE67HxAxxxxxxx
DN 40 DIN 11851) TE67HxBxxxxxxx
DN 50 (DIN 11851) TE67HxCxxxxxxx
Unique Flexbody, type N - DN 40..DN 125 (1½”
… 6”)
TE67HxNxxxxxxx
Surface finish wetted parts Ra˂0.8µ TE67Hxx1xxxxxx
Ra˂0.4µ (Electropolished) TE67Hxx2xxxxxx
Sensor length 0 mtr TE67Hxxx0xxxxx
1 mtr TE67Hxxx1xxxxx
2 mtr TE67Hxxx2xxxxx
Max. length 300 cm. 3 mtr TE67Hxxx3xxxxx
Sensor length 0 cm TE67Hxxxx0xxxx
10 cm TE67Hxxxx1xxxx
20 cm TE67Hxxxx2xxxx
30 cm TE67Hxxxx3xxxx
40 cm TE67Hxxxx4xxxx
50 cm TE67Hxxxx5xxxx
60 cm TE67Hxxxx6xxxx
70 cm TE67Hxxxx7xxxx
80 cm TE67Hxxxx8xxxx
90 cm TE67Hxxxx9xxxx
Sensor length 0 cm TE67Hxxxxx0xxx
1 cm TE67Hxxxxx1xxx
2 cm TE67Hxxxxx2xxx
3 cm TE67Hxxxxx3xxx
4 cm TE67Hxxxxx4xxx
5 cm TE67Hxxxxx5xxx
6 cm TE67Hxxxxx6xxx
7 cm TE67Hxxxxx7xxx
8 cm TE67Hxxxxx8xxx
9 cm TE67Hxxxxx9xxx
Accuracy 0,5% TE67Hxxxxxx3xx
Electrical connection M12 connector, Stainless Steel TE67Hxxxxxxx3x
Cable gland M16, Plastic TE67Hxxxxxxx4x
Cable gland M16, Stainless Steel TE67Hxxxxxxx5x
Certificates None TE67Hxxxxxxxx0
3.1 Certificate TE67Hxxxxxxxx2

Page 16 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
9.2 Ordering Key Table
Available certificates
Item code Process Connection 3-A Calibration 3.1
TE67H01xxxx3xx Clamp DN 38 (ISO2852) / Clamp DN 40 (DIN32676) X X X
TE67H02xxxx3xx Clamp DN 51 (ISO2852) / Clamp DN 50 (DIN32676) X X X
TE67H06xxxx3xx G1” (ISO228) X X X
TE67H0Nxxxx3xx Unique Flexbody, type N - DN 40...DN 125 (1½” … 6”) X X
TE67HxAxxxxxx2 DN 32 (DIN11851) X
TE67HxBxxxxxx2 DN 40 (DIN11851) X
TE67HxCxxxxxx2 DN 50 (DIN11851) X
9. Ordering
3-A Approval is only valid with a 3-A approved welding part
3-A Certificate Authorization number: 1536
A copy of the certificate can be downloaded from 3-A Sanitary Standards, Incorporated

Page 17 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5
10. General information
Upon every return of product, no matter if for modifications or repair, it is necessary to contact you local
Alfa Laval office to guarantee a quick execution of your request.
You will receive instructions regarding the return procedure from your local Alfa Laval office.
Be sure to follow the instructions closely.
10.1 Service / Repair
10.2 Warranty
The warranty conditions are subject to the legal warranty period of 12 months from the date of delivery. In
case of improper use, modifications of or damages to the device, we do not accept warranty claims.
Damaged devices will also not be accepted. Furthermore, defects due to normal wear are not subject to
warranty services.
10.3 How to contact Alfa Laval Kolding A/S
For further information please feel free to contact:
Alfa Laval Kolding A/S
31, Albuen - DK 6000 Kolding - Denmark
Registration number: 30938011
Tel switchboard: [phone] - Fax switchboard: [phone]
www.toftejorg.com , www.alfalaval.dk - [e-mail]
Contact details for all countries are continually updated on our websites.

Page 18 Instruction Manual, Alfa Laval Potentiometric Level Transmitter
TE91K021-EN5

How to contact Alfa Laval
Contact details for all countries are
continually updated on our website.
Please visit www.alfalaval.com to access the information direct.
© Alfa Laval Corporate AB
This document and its contents is owned by Alfa Laval Corporate AB and protected by laws governing intellectual property and thereto related rights. It is the responsibility of the user of this
document to comply with all applicable intellectual property laws. Without limiting any rights related to this document, no part of this document may be copied, reproduced or transmitted in any
form or by any means (electronic, mechanical, photocopying, recording or otherwise) or for any purpose, without the expressed permission of Alfa Laval Corporate AB. Alfa Laval Corporate AB
will enforce its rights related to this document to the fullest extend of the law, including the seeking of criminal prosecution.
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