Pharma | Food | Biotechnology | Cosmetics

Sanitary applications

Alexander Wiegand, Chairman and CEO, WIKA

About us
The WIKA Group is a global market leader in pressure and

The family-run business, founded in 1946, has a global

standard in the measurement of level, force and flow, and in

subsidiaries, production sites and development departments,

temperature measurement. The company also sets thecalibration technology.

such as the Innovation Center in Klingenberg.

The broad portfolio of high-precision instruments, IIoT

There alone, over 100 engineers work on innovative sensing

and reliable partner for all the requirements of industrial

unique experience and know-how make sensing technology

solutions and comprehensive services makes WIKA a strong
measurement technology.

2

presence with 11,200 employees. This includes our own

solutions that provide answers to global challenges. WIKA's
smarter, add more value and prepare it for a sustainable
future: Smart in sensing.

Contents
Hygienic design

4Electronic pressure measuring instruments

10

Mechanical pressure measuring instruments

16

Diaphragm seals

20

Electrical temperature measuring instruments

27

Mechanical temperature measuring instruments

33

Gravimetric level measurement

34

Force measuring instruments

36

Level measuring instruments

38

Installation examples

41

Special applications

45

Service

46

WIKA worldwide

48

WIKA – Your partner for
sanitary applications
In the manufacture of food and pharmaceuticals, safety inThis brochure will assist you in selecting hygienic measuring

finished product is of the highest priority.

urement challenges. In co-operation with you, we will develop

production and the prevention of any risks to those using the

In the chain of all the process components within a plant,measurement technology plays a key role. Measurement

instruments to solve pressure, temperature and level meastailored solutions geared to the individual requirements ofyour process.

technology delivers process-specific information whichenables high-quality production. For this, the safety andhygienic requirements in the design of the measuring
instruments and the connection of the sensors to the

production plant must be fulfilled optimally with respect toease of cleaning.

3

Hygienic design
The hygienic design of plant components in contact with products is an essential

prerequisite for avoiding microbiological contamination, and with that, ensuring productquality. As part of the overall hygienic concept of a plant, the measuring instruments

used must comply with special requirements on material, surface quality, process safety,
connection engineering and cleanability in the scope of the CIP process.

As a company member of the European Hygienic Engineering and Design Group (EHEDG),
WIKA contributes to the international standards and combines hygienic design withhigh-quality measurement technology.

Materials
Austenitic stainless steel is used as a standard material for wetted areas. In the food andbeverage industry and also in the pharmaceutical industry, 1.4404 and 1.4435 grades are
preferred.

Stainless steels are inert to the majority of foods and pharmaceuticals, while also offering
good corrosion resistance to disinfectants and cleaning agents. For specific applications,special alloys are used, such as the fully austenitic stainless steel, 1.4539 (904L), or Hastelloy
C and Inconel. With diaphragm measuring instruments, we use the highly corrosion-resistantnickel-chromium alloy, 2.4668 (N07718), in order to achieve an optimal measurement
performance with higher robustness.

As a standard material for all those metallic surfaces that will come into contact with theprocess medium, we use stainless steel 1.4435. For materials intended to come into contact
with food, we can provide certification to this effect in accordance with regulation (EC) no.
1935/2004 and GB 4806.1-2016 National Food Safety Standard.

Surfaces
An important aspect in the cleaning of a plant using CIP/SIP processes is the quality of thesurfaces in contact with the process medium.

To enable the easy cleaning of the measuring instruments, and also to prevent biofilms, thewetted surfaces must be passive and free from microscopic flaws. In addition to the surface

topography, the surface roughness is an important criterion for cleanability. In the standards,

such as EHEDG Doc. No. 8, “Hygienic equipment design criteria”, a roughness of Ra < 0.8 μm
is considered as sufficient for normal cleaning processes.

For sensitive biotechnology processes, surfaces with a lower roughness are needed, e.g.
Ra < 0.38 µm electropolished or SF4 per ASME BPE.
Electropolishing4

Hygienic design

By using electrolytic polishing, the cleanability of the surfaces can be improved. In thisway, essentially, the topographical structure of the surfaces is smoothed and therefore theroughness is decreased. A further advantage is that electropolishing increases the passive
layer of stainless steel, and thus the corrosion resistance is improved, especially with
reducing media.

5Sealing materials
In the selection of suitable sealing material, various processparameters and also the process media are important.

Sealing materials must be toxicologically harmless andsufficiently resistant to abrasion, be resistant against

aggressive cleaning and disinfecting media, and be stable insuperheated steam at high sterilisation temperatures.

Predominantly, special compounds are used for O-rings

or form seals, for example fluororubber-based (FKM) suchas VITON®, ethylene-propylene-diene material (EPDM) or

poly-tetra-fluoro-ethylene (PTFE). The materials used for thesealing elements, and also their manufacturing processes,
must conform to the rules of the regulatory authorities andorganisations.

6

Hygienic design

Process connections
Process connections which are used in CIP-compatible
equipment should not constitute any risk in respect tocleaning. They are characterised by the following features:■ A defined compression of the sealing element through ametallic stop

■ Centring via a cylindrical guide■ Crevice-free sealing on the inside of the pipe
For this, there are connections such as those in accordancewith DIN 11864, NEUMO BioConnect®, BioControl® and
VARIVENT®.

The widely used connections in accordance with DIN 11851(milk thread fitting) and per ASME BPE and DIN 32676(clamp) were originally developed to disassemble plantcomponents easily. They are therefore ideally suited toequipment that needs to be removed for cleaning.

If measuring instruments with these process connections areoperated with CIP cleaning, the appropriate profile sealing
has to be used.

Process connections with metallic sealing components(thread with sealing cone) form a gap at the sealing point

and must therefore be assessed very critically with regard totheir cleanability, especially with repeated sealing and fitting
following the calibration of the measuring instruments.

Threaded pipe connection per DIN 11851

Threaded pipe connection per DIN 11864-1,
form A

VARIVENT® and VARINLINE® are registered trademarks of the company GEA
BioControl® and BioConnect® are registered trademarks of the company NEUMO

Thread NEUMO
BioConnect®

7

Case
The design of the non-wetted parts must be made so that the equipment is easy toclean from the outside as well. Particularly with open processes in food production,

the machinery and equipment must be cleaned after production. For this, WIKA has

developed specific hygienic design cases. These are easy to clean from the outside.

Without any gaps or corners and with a high IP protection, these are especially suited tothe harsh conditions of washdowns.

8

Hygienic design

Directives and standards
WIKA combines hygienic design with high-quality measurement technology. We actively participate in international
standards committees such as EHEDG, 3-A and ASME BPE. The latest market requirements flow into our productdevelopment.

FDA (Food and Drug Administration)

ATEX

EHEDG (European Hygienic Engineering &IECEx

Design Group)FM®

3-A Sanitary Standards, Inc.

CSA
EAC

Date of issue: 10 January 2023
Valid until: 31 December 2024
ISSUE DATE: September 10, 1991

CERTIFICATE AUTHORIZATION NUMBER: 646(/&ODVV,THIS IS TO CERTIFY THATEHEDG hereby declares that the productpressure transmitter model PEU-21, DSSA11SA-E, DSSA11SA-D
from
WIKA Alexander Wiegand SE & Co.KG, Alexander-Wiegand Str. 30 , 63911 Klingenberg,
Germany
has/have been evaluated for compliance and meets/meet the current criteria for
Hygienic Equipment Design of the EHEDG

Certificate No. EHEDG-C2300007

Signed _________________________________________ President EHEDG
Ludvigg Josefsberg

Signed _________________________________________ EHEDG Certification Officer
Karlijn Faber

EHEDG
Gooimeer 11411 DC Naarden
Netherlands

WIKA Alexander Wiegand SE & Co. KG

Alexander-Wiegand-Strasse 30, 63911 Klingenberg , Germany
is hereby authorized to continue to apply the
3-A Symbol to the models of equipment, conforming to 3-A Sanitary Standards for:Number 74-07
74-07 (Sensors and Sensor Fittings and Connections)set forth below
ClP Models:
Diaphragm gauge: PG43SA-C, PG43SA-D, PG43SA-S;
Diaphragm seal with gauge: PG23SA, DSS25TC, M93X.25, M93X.2C, M93X.3A, DMSU21SA,DSSA11SA-H, DMS-FP;
Diaphragm seal with gauge or transmitter: 990.17, 990.18, L990.18, 990.20, 990.22, L990.22, 990.22
Clamp sterile extension, 990.24, 990.36, 990.50, 990.51, 990.52, 990.52 Clamp sterile extension,
990.53, 990.53 Clamp sterile extension, L990.57, L990.58, 990.60, L990.SD;
In-line diaphragm seal with gauge or transmitter: 981.18, 981.20, 981.22, 981.50, 981.51, 981.52,
981.53, DMSU22SA;
In-line diaphragm seal with integrated temperature sensor: 983.18, 983.20, 983.22, 983.50, 983.51,
983.52, 983.53;
Flush diaphragm transmitter: SA-11, IPT-21, S-11, IS-3, UPT-21;
Resistance thermometer: TR20, TR21-A, TR21-B, TR21-C, TR22-A, TR22-B;
In-line resistance thermometer: TR25;
Gas actuated thermometer: A74, R74;
Bi-metal thermometer: TG58SA;
Thermowell: TW22, TW61;
Electronic pressure switch: PSA-31, PSD-4;
Adapter ring for G1 Hygienic: 910.61;
D. P. transmitter adapters: z(z) SA-3 TRI, DINM, DINF, IDFM, IDFF xx S, where z(z) is transmitter codeand xx is size;
G. P. transmitter adapters: YX M24-3 TRI, DINM, DINF, IDFM, IDFF xx S y, where xx is size and y is V
or E;
Sanitary Tank Connection: PSSW.
COP Models:
Diaphragm seal with gauge or transmitter: 990.30;
D. P. transmitter adapters: z(z) DM-3 BRM, BRF, BFM, BFF, SMF xx S;
G. P. transmitter adapters: z(z) D24-3 BRM, BRF, BFM, BFF, SMF xx S y, where z(z) is transmitter
code, xx is size and y is V or E.

©EHEDG

9Electronic pressure measuring instruments

Electronic pressure measurement contributes to the precise

With pressure measuring instruments, alongside theAlongside temperature, pressure is the most important andmeasurement, a full range of process steps can beand energy-saving control and regulation of processes.

most common technology for monitoring and controlling
plants and machinery.

monitoring of process pressure and hydrostatic level
controlled, such as the dosing of inert gas blankets,the monitoring of filters in downstream areas and fillingpressures. For the various applications there are a numberof pressure sensors available.

10Electronic pressure
measuring instruments

The following electronic measuring instruments are

particularly recommended for use in sanitary applications
and for combination with diaphragm seals for a hygienic
adaption to the process.

S-20

IS-3

PSD-4

For demanding industrial
applications

Intrinsic safety Ex i

Electronic pressure switch
with display

TYPE EL
CLASS IFEBRUARY 2021®

®

Non-linearity(± % of span)

Measuring range

Special feature

Data sheet≤ 0.125, 0.25 or 0.5 BFSL

■ 0 … 0.4 to 0 … 1,600 bar■ 0 … 0.4 to 0 … 40 bar abs.
■ -0.4 … 0 to -1 … +59 bar■ Extreme operating conditions■ Customer-specific variants

Non-linearity(± % of span)

Measuring range

Special feature■ Free test log

PE 81.61≤ 0.2 BFSL

■ 0 … 0.1 to 0 … 6,000 bar■ 0 … 0.25 to 0 … 25 bar abs.
■ -1 … 0 to -1 … +24 bar■ Further worldwide Ex approvals■ High-pressure version (optional)

Accuracy(% of span)

Measuring range

Special feature(optional)

PE 81.58

0 … 0.4 to 0 … 1,000 bar
0 … 0.4 to 0 … 25 bar abs.
-1 … 0 to -1 … +24 bar

Condition monitoring via IO-Link
Reduction of variants
Easy installation, good readability
Parameterisation via 3 buttons■ Flush process connection

Data sheet≤ 0.5

Data sheet

PE 81.86

UPT-20

IPT-20

DPT-20

Universal process transmitter,with pressure port

Industrial process transmitter

Differential pressuretransmitter, intrinsically safe orwith flameproof enclosure

Non-linearity(% of span)

Non-linearity(% of span)

Non-linearity(% of span)≤ 0.065 … 0.1

Special feature■ Freely scalable measuring ranges

SIL

IEC 61508 / IEC 61511

Output signal
Measuring range

Special feature

Data sheet≤ 0.1

4 … 20 mA, HART®
0 … 0.4 to 0 … 1,000 bar
0 … 1.6 to 0 … 40 bar abs.
-0.2 … +0.2 to -1 … +40 bar
Multi-functional display
Simple menu navigation
Conductive plastic case
Large LC display, rotatable

Measuring range

Output signal

Special feature

PE 86.05
Data sheet≤ 0.075 … 0.1

0 … 0.1 to 0 … 4,000 bar-1 … 0 to -1 … +60 bar
0 … 0.1 to 0 … 60 bar abs.

4 … 20 mA, HART®,PROFIBUS® PA, FOUNDATION™
Fieldbus

Measuring range
Output signal■ Static load 160 bar, optionally

400 bar

Freely scalable measuring ranges(turndown to 30 : 1)
Case from plastic, aluminium or
stainless steel■ Case from plastic, aluminium or

stainless steel■ With integrated display and instru-

ment mounting bracket for wall/
pipe mounting (optional)■ 3- or 5-way valve optional■ SIL 2 per IEC 61508

PE 86.06

Data sheet

For a hygienic process connection, a combination with our diverse diaphragm seals is possible.

0 … 10 mbar to 0 … 16 bar
4 … 20 mA, HART® protocol(optional), PROFIBUS® PA,
FOUNDATION™ Fieldbus

PE 86.22

11

Pressure sensors
The flush metal measuring cell of the SA-11 is directly welded to the process

SA-11

connection and fulfils the high demands of sanitary applications. With the gap-free

For hygienic processes

connection without additional sealing between the process connection and themeasuring cell, risks of leakage are eliminated.

For dead-space free instrumentation, numerous hygienic process connections areavailable. This is certified per 3-A Sanitary Standards as well as EHEDG.

The SA-11 pressure transmitter is exceptionally suitable for both the cleaning

processes Cleaning-in-Place (CIP) and also for Sterilisation-in-Place (SIP) withelevated temperatures.
®

Accuracy(± % of span)

Measuring range

Special feature

Data sheet≤ 0.2-0.25 … 0 to -1 … +24 bar
0 … 0.25 to 0 … 25 bar gauge0 … 0.25 to 0 … 16 bar abs.

Flush diaphragm with a surface
roughness of Ra < 0.4 μm
All welded
PE 81.80

Cable outlet IP68

Angular connector 4-pin,
EN 175301-803,
form A, IP65

Circular connector
4-pin, with screw cap
M12 x 1, IP65

Stainless steel
Field case IP67

Pressure switches
The model DSSA11SA compact diaphragm seal system is particularly well suitedfor hygienic process integration in sanitary applications.

DSSA11SAIn the basic version, the instrument is fitted with a pressure sensor without aCompact diaphragm seal
system, hygienic design, with
IO-Link and switching outputs

display, which, depending on the application, can be used either for pressure

monitoring or as an electronic PNP/NPN switch for process control. The instrument
is also available with an additional IO-Link interface. It can thus be programmed

flexibly and has integrated diagnostic functions that monitor the instrument status.
This version, which has been enhanced with a 360° LED status display, provides

visual information about the status and enables intuitive and quick error detection
and correction.

®
TYPE EL
CLASS IFEBRUARY 2021

Accuracy(% of span)≤ ±1≤ ±0.5

Switching output
Data sheet

1 or 2 (PNP or NPN)
PE 95.25

Measuring range

12

0 ... 1 to 0 ... 25 bar
0 ... 15 to 0 ... 300 psi

Electronic pressure
measuring instruments

Process transmitters
Through its robust stainless steel case in hygienic design, the UPT-21 processtransmitter is suitable for almost all applications.

UPT-21

0 … 400 mbar up to 0 … 600 bar with the 4 … 20 mA output signal.

Universal process transmitterwith flush process connection

Via the display and operating module or via the HART® interface, it is scalable from

The process connections are available in all popular connection geometries.
Through the hygienic case, no unwanted germs can accumulate on the

instrument's surfaces. The robust design also permits cleaning with high-pressure

equipment. Particularly for the measurement in tanks, the integrated firmware offers
the possibility to display the filling volume directly.

TYPE EL
CLASS IFEBRUARY 2021®

Non-linearity(% of span)

Measuring range

IPT-21
Process pressure transmitterin stainless steel case≤ 0.1

0 … 0.4 to 0 … 600 bar
0 … 1.6 to 0 … 40 bar abs.
-0.2 … +0.2 to -1 … +40 bar

Output signal
Special feature

4 … 20 mA, HART®
Multi-functional display (optional)
Freely scalable measuring range
Simple menu navigation
Conductive plastic case or stainlesssteel case in hygienic design
Large LC display, rotatable

Data sheet

PE 86.05

TYPE EL
CLASS IFEBRUARY 2021®

Accuracy
Measuring range

0.075 to 0.25 %0 … 0.1 to 0 … 600 bar-1 … 0 to -1 … +60 bar
0 … 0.1 to 0 … 60 bar abs.

Output signal

4 … 20 mA
4 … 20 mA, HART®
PROFIBUS® PA
FOUNDATION™ Fieldbus

Data sheet

PE 86.06

DPT-EL
Electronic differential pressure
system with primary andsecondary sensor

The IPT-21 process pressure transmitter, with its 4 … 20 mA/HART®, PROFIBUS®

PA or FOUNDATION™ Fieldbus output signal, combined with the intrinsicallysafe ignition protection type (in accordance with ATEX or FM), is ideally suited

for application in appropriate systems. The instruments can be used for standard
pressure measurement and also for hydrostatic level measurement.

Special features■ High measurement accuracy■ Best long-term stability■ Freely scalable measuring ranges (turndown to 30 : 1)
■ Configuration via DTM (Device Type Manager) in accordance with the FDT

Application
Accuracy
Measuring range
Output signal

Data sheet

Level or contents measurement inclosed vessels

from 0.075 %Differential pressure 0.025 ... 10 bar
Static pressure: 0 ... 10 bar

4 … 20 mA, HART®
PROFIBUS® PA
FOUNDATION Fieldbus
PE 86.23(Field Device Tool) concept (e.g. PACTware) and primary standards

13

In-line process transmitter
Optimum hygienic design

Applications

Thanks to its in-line design, the sensor is suitable for

Hygienic pressure measurement for thepressure measurements in pipeline systems.

In pharmaceutical plants and applications in the foodand beverage industry, it is ideal for small pipelines with
DN < 1 or DN < 25.

Suitable for CIP and SIP

 pharmaceutical industry
 aseptic food processing Pressure/vacuum measurement on pipelines

Suitable for highly viscous media, pastes and media
containing particles, solids or fibres

The sensor is easy to clean and suitable for CIP processes.

It has been designed for process temperatures up to +150 °C

and is therefore suitable for the measurement of sterile steam
in SIP processes.

DesignThe robust in-line design increases durability compared toPatent no.

conventional instruments.

CN113454431A
EP3938750A1
US2021404898A1
WO2020182945A1

Sensor
The use of a dry sensor eliminates the risk of productcontamination, since no system fill fluid is required.

The sensor's self-monitoring provides direct feedback toensure hygienic integrity.

DMSU22SAIn-line process transmitter,hygienic design®

Non-linearity(% of span)

Output signal

Measuring range

Special feature

Data sheet14

1 % (at process temperature)■ 4 ... 20 mA with HART® signal(HART® rev. 7)■ 4 ... 20 mA■ 0 ... 16 bar (0 ... 200 psi)

■ -1 ... 15 bar [-30 inHg ... +200 psi]

■ 0 … 16 bar abs. [0 ... 200 psi abs.]■ Dead-space free hygienic design

with thick-walled sensor tube fromstainless steel■ In-line pressure measurement withsensor tube without system fill fluid■ Continuous sensor monitoring of
the double-tube system prevents
contamination of process andenvironment
DS 95.03

Electronic pressure
measuring instruments

Diaphragm monitoring
WIKA's patented double diaphragm offers a solution for

The system, approved as a unit with process transmitterthe environment, or where the fill fluid in the diaphragm seal

integrated into the digital structures of the control system via

critical processes where the product must not find its way into
assembly must not find its way into the product.

and integrated diaphragm monitoring system, is directly

HART® revision 7. The communications protocol transmits
all measured values and the alarm signal of the safetyfunction. This works with a double diaphragm, the evacuatedspace between which is monitored by a pressure switch.
Should the diaphragm on the process side rupture, theswitch reacts to the relieved vacuum and triggers an alarm.
The second diaphragm ensures the continuous monitoringof the pressure. The user receives the damage message

immediately as a status message in the HART® protocol.

This enables the user to reduce the reject quantity of theprocess medium to a minimum.

Patent no.

US 2018180505
DE 102016015447
CN 108240885

DMS-FP

DMSU21SA

Diaphragm monitoring system

Diaphragm monitoring systemwith HART® revision 7®

®

TYPE EL
CLASS ITYPE EL
CLASS IFEBRUARY 2021

Diaphragm monitoring

FEBRUARY 2021

Individual combination possibilities for measuring instrument anddiaphragm seal

Process connection Clamp connection per DIN 32676
Application
Sanitary applications
Material
Stainless steel 1.4435 (316L),
UNS S31603
Data sheet

DS 95.20

Process connection Clamp connection per DIN 32676,
ASME BPE, Ingold, DIN 11864
Diaphragm monitoring

Integrated

Data sheet

DS 95.11

Material

Stainless steel 1.4435 (316L),
UNS S31603

15

Pressure gauges
For a reliable on-site display of the operating pressure, awide range of mechanical pressure measuring instruments
is available. Our product line ranges from proven Bourdon

tube instruments, through diaphragm element and capsulegauges to robust pressure gauges for the measurement ofover-, absolute and differential pressure. The measuring

instruments are characterised, in particular, by mechanics
made completely from stainless steel.

Limit indicator
The limit indicator, which is available as an option, finds its

application wherever overpressures must be displayed withcertainty and not be tampered with.

The limit indicator is a mechanical indicator with two settings,
mounted on the dial:

If the indicator is in the green field, the pressure limit being
monitored has not been exceeded.

Internal workings of a mechanical pressure measuring instrument

Pressure gauges with electrical output signal or switch contacts
Wherever the process pressure has to be indicated locally
and, at the same time, a signal transmission to the cen-tral control or remote centre is desired, the model PGT23
Tamper-proof limit indicator
Patent pending in various
countries, e.g. DE102010050340

If the indicator is found in the red area, the set pressure range
has been exceeded at least once. In this case, the indicator

will remain permanently locked and protected from tamperingin the red area.

16

intelliGAUGE® can be used.

Through the combination of a mechanical measuring systemand electronic signal processing, the process pressure canbe read securely, even if the voltage supply is lost.

Our offer is completed by the pressure gauges with switch
contacts, e.g. switchGAUGE model PGS23, making it

possible to simultaneously monitor the equipment and toswitch circuits.

Mechanical pressure
measuring instruments

The following mechanical measuring instruments are particularly
recommended for use in sanitary applications and for

combination with diaphragm seals for a hygienic adaption to theprocess.

131.11232.50, 233.50

232.36, 233.36

Stainless steel version,
standard

Stainless steel version

Safety version, stainless steel,high overload safety

GL
Nominal size
Scale range
Accuracy classIngress protection
Data sheet

40, 50, 63 mm
0 … 1 to 0 … 1,000 bar
2.5
IP54
PM 01.05

Nominal size
Scale range
Accuracy classIngress protection
Data sheet

63, 100, 160 mm
0 … 0.6 to 0 … 1,600 bar
1.0/1.6 (NS 63)
IP65
PM 02.02

Nominal size
Scale range
Accuracy classIngress protection
Data sheet

100, 160 mm
0 … 0.6 to 0 … 40 bar
1.0/1.6 (NS 63)
IP65
PM 02.15

PGS23

PGT23

910.33Pressure measuring instrument with switch contacts

Pressure measuring instrumentwith electrical output signal

Adhesive label set for red andgreen circular arcs

Nominal size
Scale range
Accuracy classIngress protection
Data sheet

Nominal size
Scale range
Accuracy classIngress protection
Data sheet

Nominal size
Application

100, 160 mm
0 … 0.6 to 0 … 1,600 bar
1.0IP65
PV 22.02

100, 160 mm
0 … 0.6 to 0 … 1,600 bar
1.0
IP54, filled IP65
PV 12.04

Special features
Data sheet

63, 100, 160 mm
Individual red-green marking ofscale ranges on dial measuring
instruments

Long-term stability, temperature andUV resistanceAC 08.03

17

Diaphragm pressure gauges
No risk of contamination by system
fill fluid

Hygienic design
The measuring instruments have been developed for the

The diaphragm measuring instruments operate withoutpressure display during the processing and transport ofthe process to the easily readable pressure indication

cleaned easily and quickly during batch changes and are

any system fill fluid. These transmit the pressure fromhigh-value and critical media. This means that they can be

purely mechanically. By eliminating any liquids, theideally suited for CIP, SIP and washdown processes.

“dry measuring cell” increases the process safety
for sterile pressure measurement.

Robust diaphragm element withhigh overload safety
Proven over decades, diaphragm elements can also

withstand pressure spikes and overloads thanks to theirstrong diaphragms. Through this, the danger of damage tothe flush diaphragm is clearly reduced.

Autoclavability
The instruments can be completely autoclaved. This meansthat they can be steam-sterilised together with the sterile
container in an autoclave.

Thus, the measuring instruments can be installed just before

the sterilization in order to save time and effort in preparation.

Movement

The video for this instrument family
can be found here:

Link

Diaphragm element

18Mechanical pressure
measuring instruments

PG43SA-C

Pressure measuring instrumentwith flush diaphragm element

Compact pressure measuring
instrument with flush diaphragm element©Raff+Grund GmbHPG43SA-S

Sanitary applications

Pressure displays
in hygienic design®

®

Nominal size
Scale range
Accuracy class
Overload safety

Special feature
Data sheet

100 mm-1 … 0.6 to -1 … 15 bar
0 … 1.6 to 0 … 16 bar

1.6
2 ... 5 x full scale value, max.
pressure rating of the processconnection

Completely autoclavable (optional)
PM 04.16

Nominal size
Scale range
Accuracy class
Overload safety
Special feature
Data sheet

Flyer“PG43SA family”

63 mm-1 … 2 to -1 … 9 bar
0 … 3 to 0 … 10 bar

2.5
5 x full scale value, max. pressure
rating of the process connection
Back mount version
PM 04.15

For the highest safety aspects
PG43SA-D
Pressure measuring instrumentwith integrated diaphragm element monitoring®

Application
Nominal size
Scale range
Accuracy class
Overload safety

Special feature

Data sheet

For the production of active
pharmaceutical ingredients (API)
100 mm-1 … 1.5 to -1 … 15 bar
0 … 2.5 to 0 … 16 bar

1.6
1.5 ... 4 x full scale value, max.
pressure rating of the processconnection

Fully autoclavable
Optional sterilisation of the referencechamber per ISO 20857/2010

Diaphragm elementmonitoring

Second barrier
For double safety, the measuring instru-

The model PG43SA-D is fitted withment has an integrated secondary bar-element monitoring. The risk of anelement break maintains the hermetic

is eliminated.

This prevents the escape of hazardous

is damaged, either through improper

environment and vice versa - excluding

conditions, this can lead to a crack.

with particles from the environment.

dial by a red warning point. If this point

cess safety in a pharmaceutical plant.

pressure element is intact and cost-

diaphragm element and the secondary

a patented system for diaphragmrier which, in the event of a diaphragm

undetected diaphragm element rupture

sealing of the process.

In the event that the diaphragm element

substances from the process to thehandling or through extreme processcontamination of the process media

This is immediately indicated on theThis increases the operational and pro-on the dial remains white, then the

Optionally, this space between theintensive maintenance is not required.

barrier can be sterilised with dry heat.

PM 04.17

White dot:
Diaphragm
element intact

Red dot:
Diaphragm
element defective

Status display

Second barrier (internal)
Diaphragm element
Patent pending in various countries,
e.g. DE102016005568, US2016349128A1, CN106197792, DE102015006524

19

Connection to the process with diaphragmseals
The connection of pressure measuring instruments to the process is ideally performed by means of diaphragm seals withhygienic connections.

Diaphragm seals

Advantages of diaphragm seals

Diaphragm seals separate the pressure measuring

In contrast to ceramic principles, with diaphragm seals -medium and ensure a process connection which is either- additional sealing elements are eliminated, and so the

instrument, pressure sensor or pressure switch from thefree of dead spaces or where dead spaces are reduced toa minimum. The isolation is achieved by means of a flexible

metal diaphragm. The internal space between the diaphragmand the pressure measuring instrument is completely filledwith a fluid. The process pressure is transmitted by the elastic
diaphragm into the fluid and from there to the measuring
instrument.

20

as a result of the measuring cell's metallic construction
maintenance effort is significantly reduced. Ceramicmeasuring cells exhibit a high sensitivity to dynamic loads.
With any sudden pressure spikes, the ceramic cell canbe destroyed. In these cases, combinations of measuring
instruments and diaphragm seals are clearly preferable.

Diaphragm seals

Possibilities for combination and assembly
The combination of mechanical or electronic pressure measuring instruments with flush diaphragm seals meets the stringent
demands made on hygienic instrumentation and is suitable for even the most difficult measuring requirements. Mounting of

the diaphragm seals to the measuring instruments may be made via a direct connection, for high temperatures via a coolingelement or via a flexible capillary.

Pressure measuring
instruments

Pressure sensors

Direct mounting

Process transmitters

Cooling element

Diaphragm seals with sterile connection

Pressure switches

CapillaryIn-line diaphragm seals with sterile connection

System fill fluids for diaphragm seal systems
The media used by us are FDA-compliant.
Name

Code no. Permissible medium temperature Density at temperature

Glycerine

KN

Viscosity at temperature-6

Conformities

P ≥ 1,000 mbarabs.

P < 1,000 mbarabs.

[g/cm3]

7+17 … +230 °C

–

1.26

+20

1110

+20

FDA 21 CFR
182.1320

Neobee® M-2059

-20 … +200 °C-20 … +160 °C

0.92

+20

10.1

+25

FDA 21 CFR
172.856,
21 CFR 174.5

Medicinal whitemineral oil

92-10 … +260 °C-10 … +160 °C

0.85

+20

23

+40

FDA 21 CFR
172.878, 21 CFR
178.3620(a);USP, EP, JP[°C][m²/s • 10 ][°C]

Neobee® is a registered trademark of the Stepan Company.
Further system fill fluids can be used for special applications after technical application support.
21

Diaphragm seals
Diaphragm seals are mounted to existing fittings. Usually the fittings consist of T-pieces

which are integrated into a pipeline, or of welding sockets which are welded to a pipeline,
the process reactor or a tank.

Diaphragm seals offer the advantage that the “contact surface” between pressure

medium and diaphragm is relatively large, thus ensuring accurate pressure measurement.
Furthermore, they can be easily removed for cleaning or calibration.

Pressure measuring instrument (pressure gauge or transmitter)

System fill fluid
Direct mounting
Diaphragm seals
Diaphragm(welded to diaphragm seal)

Seal
Clamp

Welding socket

Process medium

22

Diaphragm seals

990.17DRD connection®

Processconnection
PN max.
Data sheet

DRD connection
25 barDS 99.39

990.18990.22990.24

Milk thread fitting
per DIN 11851

TRI-CLAMP®

VARIVENT® connection®

Processconnection
PN max.
Data sheet®

Thread with grooved union nut
40 or 25 bar
DS 99.40

990.50
NEUMO BioConnect®
connection®

®

Processconnection

TRI-CLAMP®, DIN 32676 or BS4825

Data sheet

DS 99.41

PN max.

40 bar (DN 20 … 50)
25 bar (from DN 65)

Processconnection

PN max.
Data sheet

For installation into the VARINLINE®
access unit or connecting flange
25 barDS 99.49

990.60990.51
Aseptic connection
per DIN 11864

NEUMO BioControl®

®

®

Processconnection

PN max.

Data sheet

NEUMO BioConnect® thread or flange

16 bar (thread)70 bar (flange)
Higher pressures on request
DS 99.50

Processconnection
PN max.
Data sheet

DIN 11864-1 threaded connection
DIN 11864-2 flange
DIN 11864-3 clamp connection
16 … 40 bar depending on theprocess connection
DS 99.51

VARIVENT® and VARINLINE® are registered trademarks of the company GEA
BioControl® and BioConnect® are registered trademarks of the company NEUMO

Processconnection

PN max.

Data sheet

For installation into the NEUMO
BioControl® system

16 bar (size 50 … 80)
70 bar (size 25)
DS 99.55

23

Diaphragm seal systems

M932.25Compact pressure gauge inaccordance with ASME with ¾"
clamp connection

These diaphragm seal systems have been developed for hygienic
applications in the pharmaceutical industry and for food andbeverage production. They are suitable for quick, residue-freecleaning, in particular for cleaning in place (CIP) and sterilisation inplace (SIP).

The clamp connections are fast and easy to open for cleaning orseal replacement.

DSS18F, DSS19F

DSS22FDSS22P

With pressure gauge per
EN 837-1, with milk thread fittingor SMS threaded connection

With pressure gauge per
EN 837-1, with clamp
connection

With pressure gauge inhygienic design, with clamp
connection

Process connection DSS18F: Grooved union nut/threaded coupling
DSS19F: Threaded connection per
SMS standard (SS 3352)

Process connection TRI-CLAMP®, DIN 32676 or BS4825
PN max.
25 bar
System fill fluid
KN92
Data sheet
DS 95.06

Process connection TRI-CLAMP®, DIN 32676 or BS4825
PN max.
25 bar
System fill fluid
KN92
Special feature
External zero point setting
Electropolished case
Autoclavable

PN max.
System fill fluid
Data sheet

24

Process connection TRI-CLAMP® per ASME BPE ¾", 1"
PN max.
600 psi (40 bar)
System fill fluid
KN7
Data sheet
M93x.25

25 bar
KN92
DS 95.04, DS 95.21

Data sheet

DS 95.07

DSS18T

DSS19T

DSS22T

With high-quality pressure
sensor, with milk thread fittingWith high-quality pressure
sensor, with SMS threaded
connection

With high-quality pressure
sensor, with clamp connection

Process connection Milk thread fitting per DIN 11851
PN max.
25 bar
System fill fluid
KN92
Data sheet
DS 95.05

Process connection Threaded connection per SMS
standard (SS 3352)

Process connection TRI-CLAMP®, DIN 32676 or BS4825
PN max.
25 bar
System fill fluid
KN92
Data sheet
DS 95.08

PN max.
System fill fluid
Data sheet

25 bar
KN92
DS 95.06

Diaphragm seals

In-line diaphragm seals
The in-line diaphragm seal is perfectly suited for use with

The measured medium flows, without obstruction, throughthe process line, measurements do not cause any disturbing

cleaning of the measuring chamber.

flowing media. With the seal being completely integrated into
turbulences, corners, dead spaces or other obstructions in
the flow direction.

the in-line diaphragm seal. This effects an additional selfThe in-line diaphragm seal is installed directly into thepipeline.

Pressure measuring instrument (pressure gauge or transmitter)
System fill fluid

981.18
Milk thread fitting DIN 11851

Direct mounting
Clamp

Diaphragm seals

Diaphragm(welded to diaphragm seal)

Seal
Process line
Process medium®

Processconnection

ThreadData sheet

DS 98.40

PN max.

40 bar (DN 20 … 40)
25 bar (from DN 50)

981.22981.51

981.50

TRI-CLAMP®

Aseptic connection

NEUMO BioConnect®

®

Process connection

PN max.

Data sheet®

®

TRI-CLAMP®, clamp DIN 32676,
ISO 2852
40 bar (DN 20 … 40)
25 bar (from DN 50)
DS 98.52

Process connection
PN max.
Data sheet

DIN 11864-1 threaded connection
DIN 11864-2 flange
DIN 11864-3 clamp connection

Process connection

PN max.

NEUMO BioConnect® thread orflangeDS 98.51

Data sheet

DS 98.50

16 … 40 bar depending on theprocess connection

BioControl® and BioConnect® are registered trademarks of the company NEUMO

16 bar (thread)70 bar (flange)
Higher pressures on request

25

Diaphragm seals

Precision digital pressure gauges withdiaphragm seals
When assembled with the model 990.22 diaphragm seal, the CPG1500 is

CPG1500

optimally suited for processes in the food and pharmaceutical industries.

Precision digital pressuregauge

The large display enables the measured values to be read easily and precisely.
The instrument can also be used for leakage monitoring on mobile aseptic orsterile vessels, in particular for vessels with low pressure blankets. With the help of

the data logging function, the measured values can be recorded over a long period“myWIKA device” appPlay Store

Measuring range
Accuracy(% of span)Special feature

Data sheetof time.

-1 … 10,000 bar
Down to 0.05 % FS
Integrated data logger
WIKA-Cal compatible
Data transfer via Bluetooth®
Password protection possible
Robust case IP65
CT 10.51

Pressure measuring
instruments for homogenisers
Pressure measuring instruments with model 990.30

diaphragm seals have been specifically developed forhomogenising processes, where there are extremely
dynamic pressure loads.

Complex structural features allow pressures of up to2,500 bar and ensure a long service life. The model

is available as a purely mechanical solution or with a
4 ... 20 mA output signal.

Further information on model 990.30 can be found in data
sheet DS 99.33.

26®

Electrical temperature
measuring instruments

Risk minimisation
Optimum cleanability
 Fully welded  No gasket, maintenance free connection
 Orbital welding  Controlled weld seams
 Principle in accordance with ASME BPE Measuring insert can be removed for calibration without

opening the process  No breach of the sterile boundary Measurement in the core of the flow

 High accuracy to protect temperature-sensitive
products

 Fast response time

Patent no.

DE 102010037994
US 12 897.080®

Patent, property right:

Previous protection tube

GM 000984349

Model TW61 dead-space free protection tube –for orbital welding

Flush temperature instrumentation for
mixing vessels
Inside the mixing vessel No intrusion into the process

External components

 Enables easy removal of process

medium from the inner wall byrotating wipers

Sensor No risk of process contamination
 Easy to clean – reduced time for

Block flange

cleaning

Seal Higher accuracy than surface

Weld seam
Vessel wall®

BioControl® is a registered trademark of the company NEUMO

Patent no.

GM 000984349

mounted sensors

 Fast response time through face-sensitive sensor installation

 TR20 in conjunction with a

BioControl® block flange 910.60

27

Electrical temperature measurement
Resistance thermometers are equipped with metallic-conductor based sensor elements which change theirelectrical resistance as a function of temperature. The connection to the evaluation electronics (transmitter,

controller, display, chart recorder, etc.) can be made with a 2-, 3- or 4-wire circuit, depending on the application.

In the food and beverage industry, as well as in pharmaceuticals, biotechnology and cosmetics manufacturing, thefocus is on more than just providing temperature readings.

The instruments for electrical temperature measurement are characterised by the following features:

Individuality
Through tailored thermometer designs corresponding to your process and the available space
Redundant temperature
measuring points forreciprocal sensor
monitoring

Multipoint thermometers for temporary
measurements of temperature stratification inreactors

Flexibility
Through different thermowells, sensors and signal processing possibilities

Modularity
Through detachable thermometer-thermowell connections and standardised
measuring inserts for simplified storage

28

Electrical temperature
measuring instruments

Speed

Step-response behaviour following
a temperature change

Through spring-loaded measuring

inserts for defined fitting conditions in

the thermowell and optimised response

Signaltimes

Response time (s)Reliability and high plant availability
Through a high IP ingress protection of up to IP69K forparticularly harsh ambient conditions during a washdown.

Through easy and quick cleanability with dead-space free andpatented measuring instruments, 3-A marked and EHEDG-certified

Compact and safe
Through space-saving cases,for hazardous areas®
TYPE EL
CLASS IFEBRUARY 2021
FEBRUARY 2021

CLASS ITYPE EL®

29

Electrical temperature measuring
instruments
For temperature measurement in the widest range of applications, WIKA offers acomprehensive product programme of electrical thermometers. The TR21 series
is characterised by a compact design and fast electrical connection. The series
cases are available with IP68 and IP69K protection. In the TR22 series WIKA’s

proven temperature transmitters are used, with which all standard output signals
are available.

Easy calibration or maintenance, without having to open the process, is possible inboth series with connection to the process via thermowell. In this way, hygiene risks
can be minimised and downtimes can be reduced. Suitability for use in sanitary

applications is confirmed by the successful 3-A auditing and EHEDG certification.

TR21-A

TR21-B

TR21-C

Miniature design
with flange connection

Miniature design fororbital welding

Miniature design with welded
flange connection®

Sensor element
Measuring range
OutputConnection tothermowell

Ingress protection
Data sheet

30®

Pt100, Pt1000-30 … +250 °C
Pt100, Pt1000, 4 … 20 mA
Removable G ⅜"

IP69K autoclavable
TE 60.26

Application
Sensor element
Measuring range
OutputConnection tothermowell

Ingress protection
Data sheet®

Invasive temperature measurement in
the product stream
Pt100, Pt1000-30 … +150 °C
Pt100, Pt1000, 4 … 20 mA
Removable G ⅜"

IP69K autoclavable
TE 60.27

Sensor element
Measuring range
OutputConnection tothermowell

Ingress protection
Data sheet

Pt100, Pt1000-30 … +250 °C
Pt100, Pt1000, 4 … 20 mA
WeldedIP69K autoclavable
TE 60.28

Electrical temperature
measuring instruments

TR22-A

TR22-B

TR25

With flange connection

For orbital welding

In-line resistance thermometer®

Sensor element
Measuring range
OutputConnection tothermowell
Data sheet

®

®

Pt100
-50 … +250 °C
Pt100, 4 … 20 mA
Removable M24
TE 60.22

Application
Sensor element
Measuring range
OutputConnection tothermowell
Data sheet

TR57-M

TR20

Pipe surface resistancethermometer for clamping

Flush

Invasive temperature measurement in
the product stream
Pt100-50 … +150 °C
Pt100, 4 … 20 mA
Removable M24
TE 60.23

Application
Sensor element
Measuring range
OutputPin assignment
Data sheet

For piggable systems and powdery
media
Pt100
-50 … +150 °C
Pt100, 4 … 20 mA
3- or 4-wire
TE 60.25®

Sensor element
Measuring range
OutputData sheet

1 x Pt100-20 … +150 °C
Pt100, 4 … 20 mA
TE 60.57

Application
Sensor element
Measuring range
OutputConnection method
Accessories
Data sheet

BioControl® is a registered trademark of the company NEUMO

For flush vessel mounting whenusing wipers

Pt100-50 … +250 °C
Pt100, 4 … 20 mA
2-, 3- and 4-wire
BioControl® block flange 910.60, seedata sheet AC 09.14
TE 60.20

31

Electrical temperature
measuring instruments

Temperature transmitters
Transmitters convert the temperature-dependent change in resistance ofresistance thermometers or the temperature-dependent voltage change in athermocouple into a proportional standard signal. The most commonly used

standard signal is the analogue 4 ... 20 mA signal, though digital signals (fieldbus)
are gaining more and more importance.

By using intelligent circuit concepts with analogue 4 … 20 mA signals, any sensor
errors that occur are signalled and simultaneously transmitted with the measured
value over a two-wire line (current loop). The conversion and transmission of thestandard signals (analogue or digital) is made over long distances and completely

fail-safe. A temperature transmitter can either be mounted directly at the measuring
point in the connection head or on a DIN rail in a control cabinet.

T32

T15

HART® transmitter

Digital temperature transmitterfor resistance sensors

Input

Resistance thermometers,
thermocouples, potentiometers

Input

TE 32.04

Data sheet

Accuracy
OutputSpecial feature
Data sheet

32< 0.1 %
4 … 20 mA, HART® protocol
TÜV-certified SIL version(full assessment)

Accuracy
OutputSpecial feature

Resistance thermometers,
potentiometers< 0.1 %
4 … 20 mA
The fastest and simplest
configuration on the market
TE 15.01

Interoperability: Internal and external
tests certify the compatibility of our transmitters with almost all open software andhardware tools.

Mechanical temperature
measuring instruments

Dial thermometers
For temperature measurement with dial
thermometers, WIKA manufactures

TG58SA74

thermometers.

Bimetal thermometer for sanitary applications

Gas actuated thermometer for
sanitary applications

bimetal and gas-actuatedDue to their simple design, bimetal
thermometers are suitable fordisplaying temperature reliably, evenunder difficult conditions such as
shocks or vibrations.

®

®
TYPE EL
CLASS IOCTOBER 2022

If, however, fast temperature

measurement is required or if long

distances have to be bridged needing
no auxiliary power, gas-actuatedNominal size
Scale range
Wetted parts

63, 80, 100, 130 mm-50 … 50 °C to -20 … 200 °C

Option■ Case filling with FDA-approved

Data sheet

TM 58.01

thermometers are recommended.

Stainless steel 316L

silicone oil■ Certification packages for foodand pharmaceutical applications

Nominal size
Scale range
Wetted parts

100 mm0 … 120 or 0 … 160 °C

OptionLiquid damping (case)Wetted parts with electropolishedsurface

Data sheet

Stainless steel 1.4435

TM 74.01

Combination possibilities for dial thermometers withhygienic thermowells

Bimetal thermometermodel TG53

Bimetal thermometermodel TG54

Bimetal thermometermodel 55

Gas-actuated thermometermodels R73, S73, A73

Thermowells with hygienic process connections – models TW22, TW25, TW60

33

Gravimetric level measurement andweighing with force measurement
Gravimetric level monitoring refers to the control of levels through measuring theweight of vessels and the contents within them. From the measured data, the fillingheight is calculated. Gravimetric level measurement is in demand in temperaturecritical applications and where robustness and high durability or non-invasive

measurements are required. High-accuracy weight detection without any material
contact is possible with this method. Therefore, it is particularly suitable for steriletanks, buffer vessels and storage tanks.

Typical areas of application include gravimetric level monitoring of vessels andsilos as well as weighing in process plants and dosing systems.

In biotechnological process engineering, the contents of a bioreactor can bemeasured non-invasively using weighing technology.

This method of measurement offers thefollowing advantages:
 The operator can simultaneously determine the level and the exact

mass No intrusion into the tank or vessel is needed High-accuracy weight determination without any contact with themedia The measurement is independent of the material, its properties andthe vessel geometry

 Simple replacement of the bending or shear beams
 Verifiable measurement is possible
 As suitable for small vessels as it is for large silos up to 1,200 t
 Long-term stability
 Low maintenance effort

34

Gravimetric level measurement

Design of the measuring system The load cells can be connected to a junction box bycable in the traditional way so that the totalised signal
is shown on a display. From there, the fill level can betransmitted to a large display and/or an overview platform.

 Alternatively, the load cells can be equipped withtransmitter modules so that the measured values of eachmeasuring instrument can be transmitted wirelessly

to a cloud via a gateway. From there, the data can be
retrieved, prepared and visualised.

Load cell withmounting kit


GatewayJunction box

Strain gauge weighing
electronics

Large display

35

Tension/compression force
transducers, single point
load cells
Tension/compression force transducers are used as a
traditional s-type for weighing suspended loads such as big
bags, for example.
Single point load cells are particularly suitable for use in platform scales. They can be mounted directly under platforms
without any additional design engineering and adjustment
effort.

F2802
Tension/compression force
transducer, s-type to 50 kN

Rated force Fnom
Relative linearity
error dlin

Output signal
Ingress protection
Data sheet

0 … 0.5 kN to 0 … 50 kN■ Steel ±0.03 % Fnom

■ Stainless steel ±0.05 % Fnom

2.0 ± 0.001 mV/V
IP65 (< 5 kN), IP67 (≥ 5 kN)
FO 51.48

The load cell is easy to handle due to its simple force
introduction.

F2808

F4801

F4802

Tension/compression force
transducer from 5 N

Single point load cellup to 250 kg

Single point load cellup to 10 kg

Rated force Fnom
Relative linearity
error

Rated load Fnom
Relative linearity
error

Rated load Fnom
Relative linearity
error

Output signal
Ingress protection
Data sheet±0.15 % Fnom

2.0 ±0.001 mV/V
IP66
FO 51.68

Output signal
Ingress protection
Data sheet

0 … 3 to 0 … 250 kg
0.02 % Fnom

2.0 ±0.001 mV/V
IP65
FO 53.10

0 … 0.3 kg to 0 … 10 kg
0.02 % Fnom

Output signal■ 1.0 ±10 % mV/V (0.3 - 0.5 kg)

Ingress protection
Data sheet

IP65
FO 53.13■ 2.0 ±10 % mV/V (1 - 10 kg)

F4818

F4881

F4882, F4883, F4884, F4885

Single point load cellup to 500 kg

Load cells for multihead
weighers

Load cells for checkweighers

Rated load Fnom
Relative linearity
error

Rated load Fnom
Relative linearity
error

Rated load Fnom
Relative linearity
error

Output signal
Ingress protection
Data sheet36

0 … 5 N to 0 … 2,000 N

0 … 20 kg to 0 … 500 kg
0.02 % Fnom

2.0 ±0.001 mV/V
IP65
FO 53.14

Output signal
Ingress protection
Data sheet

0 … 2 kg to 0 … 30 kg
0.02 % Fnom

2.0 ±0.2 mV/V
IP67
FO 53.16

Output signal
Ingress protection
Data sheet

0 … 1 kg to 0 … 635 kg≤ 0.02 % Fnom

2.0 ±0.2 mV/V
IP66 or IP67
FO 53.17, FO 53.18, FO 53.19,
FO 53.20

Force measuring instruments

Shear and bending beams
Shear and bending beams are used in industrial weighing
and laboratory technology, and also in the process industry.
They allow for highly accurate weighing of, for example, tanks
and vessels.
Bending beams are used in dosing units and in hopper andindustrial scales. Shear beams are used for higher loads.

The associated mounting kits allow the load cell to be easily
implemented under a scale or vessel. The load cell can beeasily removed and installed in the final mounting kit, forexample for calibration.

AZK02, AZK03

F3201

F3203

Shear beam up to 2,000 kg

Bending beam to 500 kg

Mounting kit

Rated load Fnom
0 … 500 to 0 … 2,000 kg
Relative linearity error
0.017 % Fnom

Rated load Fnom
0 … 20 to 0 … 500 kg
Relative linearity error
0.017 % Fnom

Material
WeightData sheet

This shear beam can be delivered with the AZK02
mounting kit.

This bending beam can be delivered with the AZK03
mounting kit.

Base plates, load feet and rubber elements are alsoavailable.

Output signal
Ingress protection
Data sheet

2.0 mV/V
IP68 and IP69K
FO 51.72

Output signal
Ingress protection
Data sheet

2.0 ±1 % mV/V
IP68 and IP69K
FO 51.73

Steel or stainless steel
7 kg
AC 50.11

Accessories
Matching mounting kits, weighing modules, terminal boxes (summation units) and evaluation electronics as well as large
displays are available and allow easy and safe installation in the application.

E1930, E1931

E1932

B6578

Large display or display forindustrial mV/V and analoguemeasuring instruments

Multi-function display for strain
gauge weighing electronics

Junction box

5-digit digital display with high accuracy
Ingress protection IP65
Data sheet
FO 58.05, FO 58.06

6-digit display with approval for applications requiring
verified measurements

4-channel
Rugged stainless steel case
Cable connection via clamps
Ingress protection
Data sheet

Ingress protection
Data sheet

IP65
FO 58.07

IP67
FO 58.02

37

Continuous level measurement
The float-based level measurement is not influenced by moving surfaces, electric conductivity, dielectric
constants, foaming and boiling surfaces.

When selecting the correct measurement principle for sanitary applications, e.g. use in fermenters and bioreactors, various

criteria need to be considered with which float-based measurement technology brings advantages. Generally, in the processof fermentation, agitators and their movement cause foaming on the surface of the medium, where the foam can be fine-poredor coarse-pored, depending on the process.

Reed chain
For continuous level and interface
measurement, depending on theapplication and measuring length,

FLR-H
Level transmitter,with reed measuring chain

different sensor systems are available.

The quasi-continuous system is basedon a resistance measuring chain withreed contacts as 3-wire potentiometercircuits. With contact pitches from 5 to

20 mm − depending on the measuring
length − a measurement accuracy of
1 % in 500 mm can be achieved.

®

Process connection All common processconnections inhygienic design
Guide tube length
Pressure
TemperatureDensity
Contact separation
Ingress protection
Data sheet

FLM-H
Level transmitter,magnetostrictive, highresolution measurement
principle

Max. 6,000 mm
0 … 10 bar-40 … +200 °C≥ 400 kg/m3
5, 10, 15, 18 mm
IP68
LM 20.02

Magnetostriction
For high-accuracy measuring

requirements, sensors which operateon the magnetostrictive measurement
principle are available. They achieve
an accuracy of 0.1 mm. These levelsensors are used as measured value

pick-ups for the continuous detection

SIL2

of liquid levels, and are based on

IEC 61508 / IEC 61511

Process connection All common processconnections in hygienic
designGuide tube length
Pressure
TemperatureDensity
Output signal
Accuracy
Resolution
Ingress protection
Data sheet

38

Max. 6,000 mm
0 … 10 bar-40 … +250 °C> 715 kg/m³
4 … 20 mA< ±0.5 mm< 0.1 mm
IP68
LM 20.03

determining the position of a magnetic
float according to the magnetostrictive
principle.

Level measuring instruments

Level switches
For the point-based monitoring of levels, float switches areavailable, which are generally fitted at the top of the tank.

It makes no difference whether only one or several level limits
are monitored. Within the guide tube, the inert gas contacts(reed contacts) set to the predefined switching positions areactivated magnetically and without contact. Depending on

requirements, it is possible to define a minimum/maximum

alarm value and also an emergency shutdown level. The float
switches are easy to mount and maintenance-free.

FLS-H
Float switch, for verticalinstallation®

SIL2
IEC 61508 / IEC 61511

Process connection All common processconnections in hygienic design
Guide tube length
Pressure
TemperatureDensity
Pressure
Switching function

Max. 6,000 mm
0 … 6 bar
-40 … +200 °C≥ 300 kg/m3
0 … 10 bar
Alternatively normallyopen, normally closed or change-overNumber of contacts Max. 6 x normally open
or normally closed, or 4 xchange-overIngress protection
Data sheet

Principles of level measurement

IP68
LM 30.01

39

Displays/indicators and temperature
controllers
The displays and indicators allow for easy reading of theTemperature controllers are used to control the temperaturetransducers and load cells as well as pressure, temperature

raw materials and finished products in storage and transportmeasured values from electrical temperature probes, force
and level transmitters. Integrated alarm outputs enable, in

addition, the control of the measured process values. Even

simple two-position control, such as level control, is possible
with the switching outputs from the digital indicators.

vessels. With the help of switchable set points, different set

points can be easily selected. Via optional serial interfaces,

controllers can be connected to a network and connected toa higher-level control room.

DI10, DI25, DI30, DI32-1, DI35

910.70For panel mounting, 48 x 24, 96 x 48, 96 x 96 mm

Indicator for panel mounting

Input

Input
OutputAuxiliary power
Special feature

OutputAuxiliary power

Optional special
features
Data sheet

Standard signals or multi-function input for resistance thermometers, thermocouples and standard
signals
2 … 4 switch points
DC 9 … 28 V (DI32-1, DI25)
AC 100 … 240 V (DI25, DI30, DI35)
Supply from the 4 … 20 mA current loop (DI10)

Ingress protection
Data sheet

Integrated transmitter supply (DI25, DI30, DI35)
Analogue output signal (DI25, DI35)
Wall-mounting case (DI10, DI30)

4 ... 20 mA, 2-wire
4 ... 20 mA, 2-wire (optional)
DC 14 ... 24V
Optical signal in the event of asensor signal or power failure
IP65/IP67 per IEC/EN 60529
AC 85.08

AC 80.06, AC 80.13, AC 80.02, AC 80.05, AC 80.03

A-AI-1, A-IAI-1

CS4M

CS6S, CS6H, CS6L

LCD attachable indicators fortransmitters

For panel mounting,
48 x 24 mm

For panel mounting,
48 x 48, 48 x 96, 96 x 96 mm

Dimensions
Input
Auxiliary power

Input

Multi-function input for resistancethermometers, thermocouples andstandard signals

Input

Relay or logic level DC 0/12 V
for 3-point control to control anelectronic switch relay (SSR) or
analogue current signal 4 … 20 mA

Monitoring output

Special feature
Data sheet

50 x 50 mm (case)
4 … 20 mA, 2-wireSupply from the 4 … 20 mA current
loop
Model A-IAI-1 intrinsically safe
per ATEX
AC 80.07

Control mode
Monitoring output

Auxiliary power
Data sheet

40

in production processes or for the temperature regulation of

PID, PI, PD, P, ON/OFF(configurable)

AC 100 … 240 V
AC/DC 24 V
AC 85.06

Control mode

Auxiliary power
Data sheet

Multi-function input for resistancethermometers, thermocouples andstandard signals
PID, PI, PD, P, ON/OFF(configurable)

Relay (AC 250 V, 3A (R) or 1A (L))
or logic level DC 0/12 V for 3-point
control to control an electronic switch
relay (SSR) or analogue current
signal 4 … 20 mA
AC 100 … 240 V
AC/DC 24 V
AC 85.08

Installation examples

Installation examples
Process connection of the
BioControl® system
The pharmaceutical BioControl® system is used to connectpressure and temperature measuring instruments to piping
systems and vessels. For the different types of problems
encountered in sanitary applications, there are various

designs of the BioControl® system with component approvals
available.

An advantage to the user is that the system is highly flexible.
In the design of the plant, it makes no difference whether

the port is fitted with a pressure or a temperature measuring
instrument. Design errors can be avoided due to themodular system with standardised interfaces. Furthermore,storage costs are reduced to a minimum since only a few
components need to be kept in stock.

Process connection of the
VARINLINE® system
To connect the pressure and temperature measuring

instruments to the aseptic processes, aseptic fittings are

required. For this, VARIVENT® connections are available

to the process engineer in the production of food, which

ensure a dead-space free transition from the process line tothe measuring instrument. WIKA pressure and temperature
measuring instruments with VARIVENT® connections fit
smoothly into the VARINLINE® access units.

BioControl® is a registered trademark of NEUMO.
VARIVENT® and VARINLINE® are registered trademarks of thecompany GEA.

41

Model 990.22 clamp
with sterile extension
WIKA has developed a diaphragm seal system with aprocess connection that is specifically suited to pres-sure measurement in sanitary applications. The EHEDG(European Hygienic Engineering & Design Group) has

tested the model 990.22 clamp with sterile extension andhas certified it as having exceptional suitability for sanitary
applications.

The model 990.22 clamp with sterile extension is easy

to handle when installing and removing. With the help ofa special welding socket, a flush sealing to vessels andpipelines is ensured. Thus it offers the user an easy-to-cleanpressure measuring point, which is suitable for CIP and SIP.

Weld-on adapter for flush pressuretransmitters
In open vessels or vented tanks, the operator measures thelevel hydrostatically with a pressure transmitter. For this, one
installs the measuring instrument in the bottom or close to

the bottom. This measurement can be used on practically all
liquids whose density remains constant. The measurement
is not affected by pastes, emulsions or blends of solid

ingredients. Also, hydrostatic level measurement is notaffected by foaming on the liquid surface.

To mount the measuring instrument, a socket is welded

into the vessel wall and the inside smoothed. This enables
a flush and easy-to-clean measuring point for pressure
measurement in a vessel.

Interior view ofvessel42

Installation examples

Process adapter system
The WIKA process adapter system has been developed to meet the requirements ofthe food, beverage and pharmaceutical industries. The adapter system consists ofa pressure measuring instrument or transmitter with a built-in process adapter.

The flexible, modular system allows connection to a wide range of aseptic processconnections (e.g. clamp, threaded, VARIVENT® or NEUMO®).

All parts are made of 316L/1.4435 stainless steel. The O-ring for sealing the process(optional) is supplied with a 3.1 inspection certificate per EN 10204. It is available in either
EPDM or FKM and is listed as FDA, USP class VI, as well as 3-A 18-03.

The WIKA adapter system meets the high requirements of sterile processes and has beendeveloped in accordance with the 3-A Sanitary Standards.

Universal process transmitter model UPT-21

Pressure transmittermodel S-11

Pressure transmittermodel F-21

Process pressure transmitter model IPT-21

Process adapter model 910.61 (data sheet AC 09.20)

Process adapter
VARIVENT®

Clamp

Weld-on adapter

43Installation examples

Installation examples for temperature
measuring instruments
Thermowell for orbital welding
Flow-through housing

The model TW61 thermowell serves as the processconnection for a model TR21-B or TR22-B resistancethermometer. The thermowell is especially suitable for theadaption of temperature measurement into pipelines for
sanitary applications and for CIP and SIP processes.

The ease of cleaning is ensured through the optimal hygienic
design. To integrate it into the process, the thermowell isdirectly orbitally welded into a pipeline. The connection ends
are smooth and prepared for orbital welding.

The measuring insert can be withdrawn together with theconnection head. This makes it possible to calibrate thethermometer with the entire measuring chain, on-site, without
disconnecting the electrical connections. In addition, thisavoids having to open the process, and thus the risk ofcontamination is minimised.

Angular housing

For small nominal pipe sizes and in cramped conditions,angular housing thermowells are available.

The thermowell is dead-space optimised and is welded

automatically, thus it is preferable to thermowells with weldingballs and hand-welded seams. The measuring instruments

should be aligned horizontally in order to avoid air pockets inthe cupola.

44

Special applications

Ventilation and air-conditioning
technology
With air2guide, WIKA offers a comprehensive range ofmeasuring instruments for ventilation and air-conditioning
technology.

The measuring instruments are used for differential pressure
monitoring on filters, monitoring of ventilators and blowers,
overpressure monitoring for clean rooms, temperaturemonitoring on heat exchangers,

measuring of the air flow and the
air velocity in air ducts and air-conditioning systems, and also forthe control of air and fire shutters.

Differential pressure | Air flow | Temperature | Humidity | Air quality

Sensing technology forventilation and air-conditioning

WIKA brochure “Sensing
technology for ventilation andair-conditioning”

Refrigeration
technology

Within the refrigeration cycle and its periphery there aremany points where pressure and temperature are measured
and monitored. This serves to control the plant in order toguarantee a secure process run.

In addition to the multitude of applications, the size of therefrigeration system, the refrigerant, etc. place particulardemands on the measuring instruments. Here, WIKA is thecompetent partner for measuring

instruments for pressure, temper-

ature and calibration in all parts ofrefrigeration plants.

Pressure | Temperature | Level

Measurement technology for
Refrigeration

WIKA brochure “Measurement
technology for refrigeration”
45

Lasting impressions with reliable services

Choose from our comprehensive set ofservices
Installation &Commissioning

Maintenance & Repair

Analysis & Support

WIKA’s field installation experts go to

You can count on WIKA to do repairs

WIKA offers reliable consultation

solutions that result in a short down-highly accurate calibration instruments.

cal, for a wide range of industries. Our

the customers’ sites to provide tailoredtime. Process reliability is guaranteedby expert installation. Installations

include multipoint thermometers in re-actors, thermocouples in furnaces andlevel measurement instrumentation.

Calibration

We support you in optimising youroperational processes. Benefit from ourknow-how for solutions that are tailoredto your needs.

Inspection & Testing

WIKA provides its calibration servic-

You can rely on WIKA for on-sitelaboratory, for WIKA as well as othernon-invasive and non-destructive. Our

es on-site at your premises or in our

instruments. Pressure, temperature,mass, electrical, force, dimensional,

flow and torque are some of the othercalibrations and adjustments that we
provide on shortest delivery times.

46– from diaphragm seal systems up to

verification and function testing that is

expertise also includes in-situ verifications of multipoint thermometers.

services, both analytical and techni-

qualified service technicians support insolving problems and ensure that yourmeasuring instrument is back in work-ing order in the shortest possible time.

Service

Scan for more
information

Food industry

Beverage industry

For over 75 years, WIKA has helped industries all over theworld meet set industry benchmarks. We took it upon our-selves and our services engagement to not just meet but also
exceed those set benchmarks and expectations.

We will always want to exceed your own expectations by
Producers of active
ingredients

Biotechnology

providing the best-in-class service. Moreover, our quality ofwork is backed by the strength of our OEM manufacturingexpertise.

To help you do more than just the best, we also ensure
global consistency, which means that you can counton us for any service engagement, be it generic orcustomised in nature, all over the world.
IIoT & Digitalisation

Soaps and cosmetics

Down the street – around the world

Service locationS ervice location incl.

ISO 17025 accreditation

Growing team with over 50

With our ISO 17025 accredited

We ensure high quality by

worldwide field service technicians

calibration laboratory presence in overprofessional training and certification

calibration vans deployed in various

will leave no stone unturned to ensure

observance of health and safety

and supervisors and already 15 mobile
countries around the world.

20 countries, we assure you that we
global consistency and standard of
excellence.

of our service technicians. The

aspects is very important to us.

47

WIKA worldwide
EuropeAustria
WIKA Messgerätevertrieb
Ursula Wiegand GmbH & Co. KG
Tel. +43 1 8691631
info@wika.at / www.wika.at
Benelux
WIKA Benelux
Tel. +31 475 535500
info@wika.nl / www.wika.nl
Bulgaria
WIKA Bulgaria EOOD
Tel. +359 2 82138-10
info@wika.bg / www.wika.bg
Croatia
WIKA Croatia d.o.o.
Tel. +385 1 6531-034
info@wika.hr / www.wika.hr
Denmark
WIKA Danmark A/S
Tel. +45 4581 9600
info@wika.as / www.wika.as
Finland
WIKA Finland Oy
Tel. +358 9 682492-0
info@wika.fi / www.wika.fi
France
WIKA Instruments s.a.r.l.
Tel. +33 1 71 68 10 00
info@wika.fr / www.wika.fr

Poland
WIKA Polska spółka z ogranizoną
odpowiedzialnością sp. k.
Tel. +48 54 230110-0
info@wikapolska.pl
www.wikapolska.pl
Romania
WIKA Instruments Romania S.R.L.
Tel. +40 21 4048327
info@wika.ro / www.wika.ro
RussiaAO “WIKA MERA”
Tel. +7 495-648018-0
info@wika.ru / www.wika.ru
Serbia
WIKA Merna Tehnika d.o.o.
Tel. +381 11 2763722
info@wika.rs / www.wika.rs
Spain
Instrumentos WIKA S.A.U.
Tel. +34 933 9386-30
info@wika.es / www.wika.es
Switzerland
WIKA Schweiz AG
Tel. +41 41 91972-72
info@wika.ch / www.wika.ch

Türkiye
WIKA Instruments
Endüstriyel Ölçüm Cihazları Tic. Ltd. Şti.
Tel. +90 216 41590-66
Germany
info@wika.com.tr
WIKA Alexander Wiegand SE & Co. KG www.wika.com.tr
Tel. +49 9372 132-0
info@wika.de / www.wika.de
UkraineTOV WIKA Prylad
IrelandTel. +38 044 496 83 80
WIKA Instruments Ireland Limited
info@wika.ua / www.wika.ua
Tel. +35 386 1449 360
info@wika.ie / www.wika.co.uk
United Kingdom
WIKA Instruments Ltd
Italy
Tel. +44 1737 644-008
WIKA Italia S.r.l. & C. S.a.s.
info@wika.co.uk / www.wika.co.uk
Tel. +39 02 93861-1
info@wika.it / www.wika.it

North America

Asia

Canada
WIKA Instruments Ltd.
Tel. +1 780 4637035
info@wika.ca / www.wika.ca

China
Botswana
WIKA Instrumentation Suzhou Co., Ltd. WIKA Instruments Botswana (Pty.) Ltd.
Tel. +86 512 6878 8000
Tel. +267 3110013
info@wika.cn / www.wika.com.cn
info@wika.co.bw / wika.co.bw

USA
WIKA Instrument, LP
Tel. +1 770 5138200
info@wika.com / www.wika.us

India
WIKA Instruments India Pvt. Ltd.
Tel. +1800-123-101010
info@wika.co.in / www.wika.co.in

Egypt
WIKA Near East Ltd.
Tel. +20 2 240 13130
info@wika.com.eg / www.wika.com.eg

Gayesco-WIKA USA, LP
Tel. +1 713 4750022
info@wikahouston.com
www.wika.us

Japan
WIKA Japan K. K.
Tel. +81 3 5439-6673
info@wika.co.jp / www.wika.co.jp

Namibia
WIKA Instruments Namibia Pty Ltd.
Tel. +26 4 61238811
info@wika.com.na / www.wika.com.na

Mensor Corporation
Tel. +1 512 3964200
sales@mensor.com
www.mensor.com

Kazakhstan
TOO WIKA Kazakhstan
Tel. +7 727 225 9444
info@wika.kz / www.wika.kz

Nigeria
WIKA WEST AFRICA LIMITED
Tel. +234 17130019
info@wika.com.ng / www.wika.ng

Latin America

Korea
WIKA Korea Ltd.
Tel. +82 2 869-0505
info@wika.co.kr / www.wika.co.kr

Saudi Arabia
WIKA Saudi Arabia Llc
Tel. +966 53 555 0874
info@wika.sa / www.wika.sa

Malaysia
WIKA Instrumentation (M) Sdn. Bhd.
Tel. +60 3 5590 6666
info@wika.my / www.wika.my

South Africa
WIKA Instruments Pty. Ltd.
Tel. +27 11 62100-00
sales@wika.co.za / www.wika.co.za

Philippines
WIKA Instruments Philippines Inc.
Tel. +63 2 234-1270
info@wika.ph / www.wika.ph

United Arab Emirates
WIKA Middle East FZE
Tel. +971 4 883-9090
info@wika.ae / www.wika.ae
Australia
Australia

Argentina
WIKA Argentina S.A.
Tel. +54 11 5442 0000
ventas@wika.com.ar
www.wika.com.ar
Brazil
WIKA do Brasil Ind. e Com. Ltda.
Tel. +55 15 3459-9700
vendas@wika.com.br
www.wika.com.br
Chile
WIKA Chile S.p.A.
Tel. +56 9 4279 0308
info@wika.cl / www.wika.cl
Colombia
Instrumentos WIKA Colombia S.A.S.
Tel. +57 601 7021347
info@wika.co / www.wika.co
MexicoInstrumentos WIKA Mexico S.A. de C.V.
Tel. +52 55 50205300
ventas@wika.com / www.wika.mx

Singapore
WIKA Instrumentation Pte. Ltd.
Tel. +65 6844 5506
info@wika.sg / www.wika.sg
Taiwan
WIKA Instrumentation Taiwan Ltd.
Tel. +886 3 420 6052
info@wika.tw / www.wika.tw
Thailand
WIKA Instrumentation Corporation(Thailand) Co., Ltd.
Tel. +66 2 326 6876
info@wika.co.th / www.wika.co.th

Africa/Middle East

Australia
WIKA Australia Pty. Ltd.
Tel. +61 2 88455222
sales@wika.com.au / www.wika.com.au
New Zealand
WIKA Instruments Limited
Tel. +64 9 8479020
info@wika.co.nz / www.wika.co.nz

Uzbekistan
WIKA Instrumentation FE LLC
Tel. +998 71 205 84 30
info@wika.uz / www.wika.uz

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WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30 | 63911 Klingenberg | Germany
Tel. +49 9372 132-0 | info@wika.de | www.wika.de

You can find further
information here!

9076026 01/ 2024 EN

www.wika.com