FISCHER DA09 series User manual

DA09 ... 0A
DA09 ... 1B
DA09 ... 1C
DA09 ... 2D
Operating manual
DA09 (ATEX)
Differential pressure measuring unit
Pressure levels PN10/PN25
Diaphragm manometer for use in
potentially explosive areas
CrNi-steel model
09015029 • BA_EN_DA09_EG_ATEX • Rev. ST4-A • 02/18 *09015029*

| Masthead FISCHER Mess- und Regeltechnik GmbH
2 / 40 BA_EN_DA09_EG_ATEX
Masthead
Manufacturer: FISCHER Mess- und Regeltechnik GmbH
Bielefelderstr. 37a
D-32107 Bad Salzuflen
Telephone: [phone]
Telefax: [phone]
eMail: [email protected]
web: www.fischermesstechnik.de
Technical editorial team: Documentation representative: T. Malischewski
Technical editor: R. Kleemann
All rights, also those to the translation, reserved. No part of this document may
be reproduced or processed, duplicated or distributed using electronic systems
or any other form (print, photocopy, microfilm or another process) without the
written consent of the company FISCHER Mess- und Regeltechnik GmbH, Bad
Salzuflen.
Reproduction for internal use is expressly allowed.
Brand names and procedures are used for information purposes only and do
not take the respective patent situation into account. Great care was taken
when compiling the texts and illustrations; Nevertheless, errors cannot be ruled
out. The company FISCHER Mess- und Regeltechnik GmbH will not accept any
legal responsibility or liability for this.
Subject to technical amendments.
© FISCHER Mess- und Regeltechnik 2018
Version history
Rev. ST4-A 02/18 Version 1 (first edition)

FISCHER Mess- und Regeltechnik GmbH Table of Contents
BA_EN_DA09_EG_ATEX 3 / 40
Table of Contents
1 Safety information ..........................................................................................................................................4
1.1 General.....................................................................................................................................................4
1.2 Personnel Qualification.............................................................................................................................4
1.3 Risks due to Non-Observance of Safety Instructions ...............................................................................4
1.4 Safety Instructions for the Operating Company and the Operator............................................................5
1.5 Unauthorised Modification ........................................................................................................................5
1.6 Inadmissible Modes of Operation .............................................................................................................5
1.7 Safe working practices for maintenance and installation work .................................................................5
1.8 Pictogram explanation ..............................................................................................................................6
2 Product and functional description ..............................................................................................................7
2.1 Delivery scope ..........................................................................................................................................7
2.2 Intended use .............................................................................................................................................7
2.3 Function diagram ......................................................................................................................................7
2.4 Design and mode of operation..................................................................................................................8
2.5 Equipment versions ..................................................................................................................................8
2.6 Nameplate ................................................................................................................................................9
3 Assembly.......................................................................................................................................................10
3.1 General...................................................................................................................................................10
3.2 Process connection ................................................................................................................................10
3.3 Electrical connections .............................................................................................................................11
3.4 Use in areas at risk of explosion.............................................................................................................13
4 Commissioning.............................................................................................................................................17
4.1 General...................................................................................................................................................17
4.2 Zero point correction...............................................................................................................................17
4.3 Switch point setting.................................................................................................................................18
5 Servicing .......................................................................................................................................................19
5.1 Maintenance ...........................................................................................................................................19
5.2 Transport ................................................................................................................................................19
5.3 Service....................................................................................................................................................19
5.4 Disposal..................................................................................................................................................19
6 Technical Data ..............................................................................................................................................20
6.1 General...................................................................................................................................................20
6.2 Input variables ........................................................................................................................................20
6.3 Measurement accuracy ..........................................................................................................................21
6.4 Operating conditions...............................................................................................................................21
6.5 Construction design ................................................................................................................................21
7 Order Codes..................................................................................................................................................28
7.1 accessories.............................................................................................................................................30
8 Attachments..................................................................................................................................................31
8.1 EAC Declaration .....................................................................................................................................38

1 | Safety information FISCHER Mess- und Regeltechnik GmbH
4 / 40 BA_EN_DA09_EG_ATEX
1 Safety information
1.1 General
WARNING
This operating manual contains instructions fundamental to the installation, op-
eration and maintenance of the device that must be observed unconditionally. It
must be read by the assembler, operator and the specialized personnel in
charge of the instrument before it is installed and put into operation.
This operating manual is an integral part of the product and therefore needs to
be kept close to the instrument in a place that is accessible at all times to the re-
sponsible personnel.
The following sections, in particular instructions about the assembly, commis-
sioning and maintenance, contain important information, non-observance of
which could pose a threat to humans, animals, the environment and property.
The instrument described in these operating instructions is designed and manu-
factured in line with the state of the art and good engineering practice.
1.2 Personnel Qualification
The instrument may only be installed and commissioned by specialized person-
nel familiar with the installation, commissioning and operation of this product.
Specialized personnel are persons who can assess the work they have been
assigned and recognize potential dangers by virtue of their specialized training,
their skills and experience and their knowledge of the pertinent standards.
WARNING
For explosion-proof models the specialized personnel must have received spe-
cial training or instruction or be authorized to work with explosion-proof instru-
ments in explosion hazard areas.
1.3 Risks due to Non-Observance of Safety Instructions
Non-observance of these safety instructions, the intended use of the device or
the limit values given in the technical specifications can be hazardous or cause
harm to persons, the environment or the plant itself.
The supplier of the equipment will not be liable for damage claims if this should
happen.

FISCHER Mess- und Regeltechnik GmbH Safety information | 1
BA_EN_DA09_EG_ATEX 5 / 40
1.4 Safety Instructions for the Operating Company and the Operator
The safety instructions governing correct operation of theinstrument must be
observed. The operating company must make them available to the installation,
maintenance, inspection and operating personnel.
Dangers arising from electrical components, energy discharged by the medium,
escaping medium and incorrect installation of the device must be eliminated.
See the information in the applicable national and international regulations.
Please observe the information about certification and approvals in the Tech-
nical Data section.
The instrument must be decommissioned and secured against inadvertent re-
operationif a situation arises in which it must be assumed that safe operation is
no longer possible. Reasons for this assumption could be:
• evident damage to the instrument
• failure of the electrical circuits
• longer storage outside the approved temperature range.
• considerable strain due to transport
Repairs may be carried out by the manufacturer only.
A professional single conformity inspection as per DIN EN 61010, section 1,
must be carried out before the instrument can be re-commissioned. This inspec-
tion must be performed at the manufacturer's location. Correct transport and
storage of the instrument are required.
1.5 Unauthorised Modification
Modifications of or other technical alterations to the instrument by the customer
are not permitted. This also applies to replacement parts. Only the manufacturer
is authorised to make any modifications or changes.
1.6 Inadmissible Modes of Operation
The operational safety of this instrument can only be guaranteed if it is used as
intended. The instrument model must be suitable for the medium used in the
system. The limit values given in the technical data may not be exceeded.
The manufacturer is not liable for damage resulting from improper or incorrect
use.
1.7 Safe working practices for maintenance and installation work
The safety instructions given in this operating manual, any nationally applicable
regulations on accident prevention and any of the operating company's internal
work, operating and safety guidelines must be observed.
The operating company is responsible for ensuring that all required mainten-
ance, inspection and installation work is carried out by qualified specialized per-
sonnel.

1 | Safety information FISCHER Mess- und Regeltechnik GmbH
6 / 40 BA_EN_DA09_EG_ATEX
1.8 Pictogram explanation
DANGER
Type and source of danger
This indicates a direct dangerous situation that could lead to death or serious
injury (highest danger level).
a) Avoid danger by observing the valid safety regulations.
WARNING
Type and source of danger
This indicates a potentially dangerous situation that could lead to death or ser-
ious injury (medium danger level).
a) Avoid danger by observing the valid safety regulations.
CAUTION
Type and source of danger
This indicates a potentially dangerous situation that could lead to slight or seri-
ous injury, damage or environmental pollution (low danger level).
a) Avoid danger by observing the valid safety regulations.
NOTICE
Note / advice
This indicates useful information of advice for efficient and smooth operation.

FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2
BA_EN_DA09_EG_ATEX 7 / 40
2 Product and functional description
2.1 Delivery scope
• Diaphragm manometer DA09
• Operating Manual
2.2 Intended use
The diaphragm manometer DA09 serves to measure and display differential
pressures in gaseous, fluid and aggressive media. The unit is completely made
of CrNi-steel and is suitable for use in aggressive environments. If used with ag-
gressive media, the media compatibility with the materials used must be
checked (see Techn. data).
The DA09 can be delivered with a contact element. If the set limit values are ex-
ceeded, the output power circuits are opened or closed, and/or a 0/4…20 mA
output signal proportional to the displayed value is issued for a capacitive rota-
tion angle encoder.
DANGER
Installation regulations
The respective installation instructions must be observed for every application
case. These should be listed in detail in the same-named section in chapter 'As-
sembly' for the 'use in explosive areas'.
2.3 Function diagram
+
4
3
2
1
Fig.1: Function diagram
1 Measuring diaphragm 2 Bellows
3 Tie rod 4 Motion train

2 | Product and functional description FISCHER Mess- und Regeltechnik GmbH
8 / 40 BA_EN_DA09_EG_ATEX
2.4 Design and mode of operation
The measuring system comprises a diaphragm and two separate pressure
chambers. Differential pressure between the chambers causes axial movement
of the diaphragms. A tie rod transfers this movement to an indicator.
The seal between the pressure chamber and tie rod is realised with metal bel-
lows. To compensate the static operating pressure, the measuring system is
symmetrical.
2.5 Equipment versions
The illustrations are just examples. The equipment features can be combined
according to the order code.
Bayonet ring casing NG100 Bayonet ring casing NG160
bar measuring system
mbar measuring system
Process connection
with external thread
Process connection
with internal thread
Fig.2: Equipment versions NG100, NG160

FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2
BA_EN_DA09_EG_ATEX 9 / 40
Type plate
+ wiring diagram
Cable socket
Electr. auxiliary equipment
e.g. rotation angle transducer
Process connection
with G¼ inner thread
Fig.3: Equipment versions additional equipment
2.6 Nameplate
The presented type plates serve to show an example of the information shown.
The data shown is purely fictive, but does correspond to the actual conditions.
For more information, please see the order code at the end of these instruc-
tions.
Circuit diagram
Techn. Data
Measuring range
P max.
Overload
Contact function
Prod. no.
1234
AB1809105.02.016
0 ... 10 bar
40 bar
KE20M110B4H2
max. 40 bar
Serial number
Order code
Item no. DA0907HM11S0000CL01C
max. Voltage:
max. current:
max. output:
max. capacity:
max. inductiveness:
Umax.
I
P
Ci
Li
max.
max.
max.
max.
=
=
=
=
=
16 V
25 mA
64 mW
30 nF
100 µH
Tu max. 60°C
T Medium in the unit max. 85°C
Reference no.:
0044 TÜV NORD 2014/34/EU
Only connect to certified
intrinsically-safe power circuits
.
Installed inductive proximity switch SJ 2-N
PTB 99 ATEX 2219 X
II 2G Ex ia IIC T6...T1 Gb
II 1D Ex ia IIIC T135°C Da
II 2G Ex h IIC T4 Gb
II 2D Ex h IIC T95°C Db
ATEX code
Limit values for intrinsically-safe power circuits
Filed documents
installed contact element
35220571
Fig.4: Type plate

3 | Assembly FISCHER Mess- und Regeltechnik GmbH
10 / 40 BA_EN_DA09_EG_ATEX
3 Assembly
3.1 General
The device can be mounted in one of the following ways:
1. Direct assembly
The unit is suitable for direct assembly to pressure lines. The unit weight de-
pends on the design. A suitable support construction may be needed.
2. Wall mounting
The unit is equipped with a wall holder and is suitable for mounting to
mounting plates and even walls.
3. Pipe assembly
The device is equipped with a special pipe assembly set and is suitable for
mounting to a 2" pipe (DN50).
Wall mount Pipe assembly
Fig.5: Assembly types
3.2 Process connection
• By authorized and qualified specialized personnel only.
• The pipes need to be depressurized when the instrument is being connec-
ted.
• Appropriate steps must be taken to protect the device from pressure surges.
• Check that the device is suitable for the medium being measured.
• Maximum pressures must be observed (cf. Tech. data)
All supply lines are arranged so that there are no mechanical forces acting on
the device.
The pressure lines must be kept as short as possible and installed without any
tight bends to avoid delays.
The pressure lines must be installed at an inclination so that when fluids are
measured no air pockets are created or when measuring gases, no water pock-
ets are created. If the required inclination is not reached, water or air filters must
be installed at suitable places.
The pressure lines need to be vented for fluid measuring media.
If water is used as a measuring medium, the unit must be protected against
frost.
If the pressure sensing lines are already pressurised at the time of commission-
ing, zero-point control and adjustment cannot be performed. In such cases, the
device should be only connected to the mains without the pressure sensing
lines.
The process connections are marked with (+) and (-) symbols on the device.
The pressure lines must be mounted according to these symbols.

FISCHER Mess- und Regeltechnik GmbH Assembly | 3
BA_EN_DA09_EG_ATEX 11 / 40
Differential pressure
Higher pressure
lower pressure
The following options are available for the process connection:
1/4-18 NPT
1/2-14 NPT 1/4-18 NPT 1/2-14 NPT
Inner thread Outer thread Cutting ring-
screw connection
12 mm tube
G½ G½ G½ G½
G½ +
Fig.6: Process connection
3.3 Electrical connections
DANGER
Operation in areas at risk of explosion
If operated in explosive areas, the electrical data of the unit and the valid local
regulations and guidelines for the installation and operation of electrical systems
in explosive areas must be observed.
The electrical connection may only be realised by authorised and qualified spe-
cialists that have undergone additional training or briefings or have a permit to
work on explosion-protected units in potentially explosive systems.
Risks emanating from electrical current of voltage should be prevented by
means of suitable action.
• When connecting the unit, the national and international electro-technical
regulations must be observed.
• Disconnect the system from the mains, before electrically connecting the
device.
• Do not connect the connector if strained.
• A CE-conform mains adapter with a slow 200 mA fuse only may be used in
the power supply circuit.
Only devices with contact elements are connected to the electrical supply. To
this end there is a cable socket on the side of the device, or a HAN plug in the
power plant version.
3.3.1 Ground connection
Fig.7: Ground connection
The outer ground connection must always be connected to the protective poten-
tial equalisation or a similar local potential equalisation. The connection is suit-
able for connecting fine-wire conductors up to 4 mm2 or single-wire conductors
up to 6 mm2.

3 | Assembly FISCHER Mess- und Regeltechnik GmbH
12 / 40 BA_EN_DA09_EG_ATEX
3.3.2 Cable socket
1
2
3
4
5
6
M20 x 1.5
Fig.8: Cable socket
1 Lower part 2 Sealing ring EPDM
3 Middle part 4 Sealing ring EPDM
5 Lid 6 Lid screw
3.3.3 Contact elements
Contact elements are supplied in accordance with data sheet KE. This illus-
trates all variants, their pin assignment and the technical data.
Magnetic spring contacts
1234
1 2
Fig.9: Contacts
The terminal numbers always correspond to the contact number an are as-
signed to the target indicators from left to right. Up to three contacts can be
used. There are assigned to the target indicators as follows:
Contact 1: left target indicator
Contact 2: right target indicator.
Inductive contacts
1234
-+-+
1 2
Eb= 5 ... 25V
Fig.10: Inductive contacts
In the case of inductive contacts, the switch function is not only determined by
the slot type initiator but also by the switch amplifier. Up to max two contacts
can be used. There are assigned to the target indicators as follows:
Contact 1: left target indicator
Contact 2:right target indicator.

FISCHER Mess- und Regeltechnik GmbH Assembly | 3
BA_EN_DA09_EG_ATEX 13 / 40
3.3.4 Rotation angle transducers KINAX 3W2
The rotation angle encoder serves to record angular positions, to prepare and
provide the measured values as electrical output signals 0/4…20mA for the
following device. Rotation angle encoder is supplied in accordance with data
sheet KE09. This contains further information about the pin assignment and the
technical data.
123
RL
+
-
Eb= 12 ... 30V
123
RL
+
-
~
+
-
~
+
-
2-Wire 3-Wire
Fig.11: Rotation angle transducers connection
3.4 Use in areas at risk of explosion
3.4.1 Differential pressure transmitter without contact element
DA09 … 0A
II 2G Ex h IIC T4 Gb
II 2D Ex h IIIC T95°C Db
Explosive areas Zone 1 and 2, and 21 and 22, risk from gases and dry dust.
Allowed temperatures:
• The maximum surface temperature 95 °C was determined under the follow-
ing conditions without dust accumulation and safety factor.
• Allowed ambient temperature: -20°C to +60°C.
• Allowed medium temperature in the differential measurement unit < 85°C.
WARNING
Compression heat
With gaseous mediums, the instrument temperature can increase due to com-
pression heat. In such cases, the pressure change speed must be limited or re-
duced to the allow measuring substance temperature.
NOTICE!For a differential pressure change between 10% and 90% of the
measuring range and a pulse frequency < 0.06 Hz, the temperature in-
crease is <10K.
To avoid additional heating, the instruments may not be exposed to direct sun-
light during operation!
The standards EN60079-0, EN 60079-31, EN ISO 80079-36 and EN ISO
80079-37 apply for the non-electrical part of the devices in terms of explosion
protection. The applicable requirements of these standards are satisfied.
The documents for the mechanical part were filed with notified office NB0044
(TÜV-Nord-Cert) under the file number 35220571.

3 | Assembly FISCHER Mess- und Regeltechnik GmbH
14 / 40 BA_EN_DA09_EG_ATEX
3.4.2 Differential pressure transmitter with magnetic spring contacts
DA09 … 1B
II 2G Ex h IIC T4 Gb
Simple electric operating equipment acc. to EN60079-11 sec: 5.7 in explosive
areas Zone 1 and 2.
Contact element: KE ## M ## 0B4H2
Allowed temperatures:
• The maximum surface temperature 95 °C was determined under the follow-
ing conditions without dust accumulation and safety factor.
• Allowed ambient temperature: -20°C to +60°C.
• Allowed medium temperature in the differential measurement unit < 85°C.
WARNING
Compression heat
With gaseous mediums, the instrument temperature can increase due to com-
pression heat. In such cases, the pressure change speed must be limited or re-
duced to the allow measuring substance temperature.
NOTICE!For a differential pressure change between 10% and 90% of the
measuring range and a pulse frequency < 0.06 Hz, the temperature in-
crease is <10K.
To avoid additional heating, the instruments may not be exposed to direct sun-
light during operation!
The standards EN60079-0, EN ISO 80079-36 and EN ISO 80079-37 apply for
the non-electrical part of the devices in terms of explosion protection. The ap-
plicable requirements of these standards are satisfied.
As a simple electrical operating unit, the installed electrical switch contacts fulfil
the requirements of the standard EN60079-14 Par. 3.5.2. The devices are not
labelled with respect to the electrical part.
The documents for the mechanical part were filed with notified office NB0044
(TÜV-Nord-Cert) under the file number 35220571.
Intrinsically safe power circuits
For use in areas at risk of explosion, instruments must be connected to certified,
intrinsically safe electricity circuits.
Max. voltage Umax 30 V
Max. current Imax 200 mA
Max. power Pmax 800 mW
Max. inner capacity Ci max 60 pF
Max. inner inductivity Li max 4 µH
Recommend circuit breakers see accessories.

FISCHER Mess- und Regeltechnik GmbH Assembly | 3
BA_EN_DA09_EG_ATEX 15 / 40
3.4.3 Differential pressure transmitter with inductive contacts
DA09 … 1C
II 2G Ex h IIC T4 Gb
II 2D Ex h IIIC T95°C Db
Explosive areas Zone 1 and 2, and 21 and 22, risk from gases and dry dust.
Contact element: KE ## I ## 0C0H2
Allowed temperatures:
• The maximum surface temperature 95 °C was determined under the follow-
ing conditions without dust accumulation and safety factor.
• Allowed ambient temperature: -20°C to +60°C.
• Allowed medium temperature in the differential measurement unit < 85°C.
WARNING
Compression heat
With gaseous mediums, the instrument temperature can increase due to com-
pression heat. In such cases, the pressure change speed must be limited or re-
duced to the allow measuring substance temperature.
NOTICE!For a differential pressure change between 10% and 90% of the
measuring range and a pulse frequency < 0.06 Hz, the temperature in-
crease is <10K.
To avoid additional heating, the instruments may not be exposed to direct sun-
light during operation!
The standards EN60079-0, EN 60079-31, EN ISO 80079-36 and EN ISO
80079-37 apply for the non-electrical part of the devices in terms of explosion
protection. The applicable requirements of these standards are satisfied.
The installed inductive proximity switches of the type SJ2-N (106575) are EC
type-tested with the certificate PTB 99 ATEX 2219 X. The type of the installed
proximity switch is stated on the type plate. The manufacturer is Pepperl+Fuchs
GmbH. For more information about proximity switches, please visit the website
https://www.pepperl-fuchs.com.
The documents for the mechanical part were filed with notified office NB0044
(TÜV-Nord-Cert) under the file number 35220571.
Intrinsically safe power circuits
For use in areas at risk of explosion, instruments must be connected to certified,
intrinsically safe electricity circuits.
Max. voltage Umax 16 V
Max. current Imax 25 mA
Max. power Pmax 64 mW
Max. inner capacity Ci max 30 nF
Max. inner inductivity Li max 100 µH
Recommend circuit breakers see accessories.

3 | Assembly FISCHER Mess- und Regeltechnik GmbH
16 / 40 BA_EN_DA09_EG_ATEX
3.4.4 Differential pressure transmitter with rotation angle transducer
DA09 … 2D
II 2G Ex h IIC T4 Gb
Explosive areas Zone 1 and 2, risk from gases.
Rotation angle transducer: KE0905#9
Allowed temperatures:
• The maximum surface temperature 95 °C was determined under the follow-
ing conditions without dust accumulation and safety factor.
• Allowed ambient temperature: -20°C to +60°C.
• Allowed medium temperature in the differential measurement unit < 85°C.
WARNING
Compression heat
With gaseous mediums, the instrument temperature can increase due to com-
pression heat. In such cases, the pressure change speed must be limited or re-
duced to the allow measuring substance temperature.
NOTICE!For a differential pressure change between 10% and 90% of the
measuring range and a pulse frequency < 0.06 Hz, the temperature in-
crease is <10K.
To avoid additional heating, the instruments may not be exposed to direct sun-
light during operation!
The standards EN60079-0, EN ISO 80079-36 and EN ISO 80079-37 apply for
the non-electrical part of the devices in terms of explosion protection. The ap-
plicable requirements of these standards are satisfied.
The installed capacitive rotation angle measuring transducer of the type KINAX
3W2 are EC type-tested with the certificate ZELM 10 ATEX 0427 X. The type of
the installed rotation angle transducer is stated on the type plate. The manufac-
turer is Camille Bauer Metrawatt AG. For more information about the rotation
angle transducer, please visit the website http://www.camillebauer.com.
The documents for the mechanical part were filed with notified office NB0044
(TÜV-Nord-Cert) under the file number 35220571.
Intrinsically safe power circuits
For use in areas at risk of explosion, instruments must be connected to certified,
intrinsically safe electricity circuits.
Max. voltage Umax 30 V
Max. current Imax 160 mA
Max. power Pmax 1 mW
Max. inner capacity Ci max 10 nF
Max. inner inductivity Li max 0 µH
Recommend circuit breakers see accessories.

FISCHER Mess- und Regeltechnik GmbH Commissioning | 4
BA_EN_DA09_EG_ATEX 17 / 40
4 Commissioning
4.1 General
Fig.12: Open vents
All electrical supply, operating and measuring lines, and the pressure connec-
tions must have been correctly installed before commissioning. All supply lines
are arranged so that there are no mechanical forces acting on the device.
Check that all pressure connections are free of leaks before commissioning.
In models filled with fluid, the venting valve on the upper side of the bayonet
casing must be opened before commissioning! To do this, remove the yellow
valve plug.
4.2 Zero point correction
The pressure measuring units are set in the factory before delivery so that they
do not usually need to be adjusted at the assembly site.
Any necessary zero-point correction is carried out as follows:
Venting valve
Valve plug
Zero-point correction screw
0.5 x 3
Fig.13: Zero point correction
1. Depressurize the pressure line and/or equalise both pressure lines and ex-
ert equally with the static pressure.
Fig.14: Vent closed
2. Open the venting valve as shown in the illustration and carefully remove the
entire valve plug from the casing.
3. Adjust the measurement value pointer using zero point correction screw to
the scale zero point.
4. Refit the valve plug into the casing.
5. Close the venting valve.
NOTICE!Please ensure that in models filled with fluid, the venting valve
must be opened during operation.

4 | Commissioning FISCHER Mess- und Regeltechnik GmbH
18 / 40 BA_EN_DA09_EG_ATEX
4.3 Switch point setting
There is an adjustment lock attached to the front pane of the measuring unit on
units with contact elements. This means that the contacts attached to the target
indicators can be set to any point along the scale.
To facilitate switching precision and the service life of the mechanical measur-
ing system, the switching points should lie between 10% and 90% of the meas-
uring range.
1
2
3
4
5
6
Fig.15: Switch point setting
1 Adjustment key 2 Adjusting lock
3 Axle 4 Drive arm
5 Set-point display 6 Actual value display
Adjustment sequence:
• Press the axle inwards until the drive arm reaches behind the setting pin of
the target value indicator.
• Set the target value indicator to the required switch point by turning the set-
ting key.
• Relieve the axle.
• The switch-point setting can be secured against unintentional adjustment by
removing the attachment screw and the adjustment key.

FISCHER Mess- und Regeltechnik GmbH Servicing | 5
BA_EN_DA09_EG_ATEX 19 / 40
5 Servicing
5.1 Maintenance
To ensure reliable operation and a long service life, we recommend carrying out
the following test on a regular basis:
• Check the reading.
• Checking the switch function in connection with the downstream compon-
ents.
• Checking the pressure lines for leaks.
• Checking the electrical connections (terminal connection of the cable).
The precise test cycles and operating and ambient conditions need to be adjus-
ted. If several components of the unit interact, all operating instructions of the
other units also need to be observed.
WARNING
Dust deposits
The device must be cleaned with a damp cloth a regular intervals to prevent
heat build-up. Cleaning intervals depend on the amount of local dust.
5.2 Transport
The measuring device must be protected against impacts. It should be transpor-
ted in the original packaging or a suitable transport container.
5.3 Service
All defective or faulty devices should be sent directly to our repair department.
Please coordinate all shipments with our sales department.
WARNING
Process media residues
Process media residues in and ondismantled devices can be a hazard to
people, animals and the environment. Take adequate preventive measures. If
required, the devices must be cleaned thoroughly.
Return the device in the original packaging or a suitable transport container.
5.4 Disposal
WARNING
Incorrect disposal may pose a risk to the environment.
Please help to protect the environment by always disposing of the work pieces
and packaging materials in compliance with the valid national waste and recyc-
ling guidelines or reuse them.

6 | Technical Data FISCHER Mess- und Regeltechnik GmbH
20 / 40 BA_EN_DA09_EG_ATEX
6 Technical Data
6.1 General
Please also observe the order code here.
6.2 Input variables
Measuring variable
Absolute pressure for gaseous, fluid and aggressive media.
Measuring ranges [bar, mbar]
Measuring range PN Measuring range PN
0 … 0.6 bar 25 bar -1 … 0.6 bar 25 bar
0 … 1 bar 25 bar -1 … 1.5 bar 25 bar
0 … 1.6 bar 25 bar -1 … 3 bar 25 bar
0 … 2.5 bar 25 bar -1 … 5 bar 25 bar
0 … 4 bar 25 bar
0 … 6 bar 25 bar
0 … 10 bar 25 bar
0 … 16 bar 25 bar
0 … 25 bar 25 bar
0 … 25 mbar 10 bar -40 … 60 mbar 10 bar
0 … 40 mbar 10 bar -60 … 100 mbar 10 bar
0 … 60 mbar 10 bar -100 … 150 mbar 10 bar
0 … 100 mbar 10 bar -150 … 250 mbar 25 bar
0 … 160 mbar 10 bar
0 … 250 mbar 10 bar
0 … 400 mbar 25 bar
0 … 600 mbar 25 bar
Measuring ranges [kPa, PSI]
Measuring range PN Measuring range PN
0 … 2.5 kPa 10 bar 0 … 3 PSI 10 bar
0 … 4 kPa 10 bar 0 … 5 PSI 25 bar
0 … 6 kPa 10 bar 0 … 10 PSI 25 bar
0 … 10 kPa 10 bar 0 … 15 PSI 25 bar
0 … 16 kPa 10 bar 0 … 30 PSI 25 bar
0 … 25 kPa 10 bar 0 … 60 PSI 25 bar
0 … 40 kPa 25 bar 0 … 100 PSI 25 bar
0 … 60 kPa 25 bar 0 … 250 PSI 25 bar
0 … 100 kPa 25 bar 0 … 300 PSI 25 bar
0 … 160 kPa 25 bar
0 … 250 kPa 25 bar
0 … 400 kPa 25 bar
0 … 600 kPa 25 bar