Alfa Laval 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

+45 79 32 22 00

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

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: +45 79 32 22 00 - Fax switchboard: +45 79 32 25 80

www.toftejorg.com , www.alfalaval.dk - info.dk@alfalaval.com

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.

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.

Sap: 11149023 03

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