FISCHER EA14D Operating Manual
Operating manual
EA14D
Differential pressure evaluation unit
with colour change LCD
09005114 • BA_EN_EA14D • Rev. ST4-A • 06/18
*09005114*
| Masthead FISCHER Mess- und Regeltechnik GmbH
Masthead
Manufacturer:
Technical editorial team:
FISCHER Mess- und Regeltechnik GmbH
Bielefelderstr. 37a
D-32107 Bad Salzuflen
Telephone: +49 5222 974 0
Telefax: +49 5222 7170
eMail: info@fischermesstechnik.de
web: www.fischermesstechnik.de
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 06/18 Version 1 (first edition)
2 / 36 BA_EN_EA14D
FISCHER Mess- und Regeltechnik GmbH Table of contents
Table of contents
1 Safety instructions .........................................................................................................................................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............................................................4
1.5 Unauthorised Modification ........................................................................................................................4
1.6 Inadmissible Modes of Operation .............................................................................................................4
1.7 Safe working practices for maintenance and installation work .................................................................5
1.8 Pictogram explanation ..............................................................................................................................5
2 Product and functional description ..............................................................................................................6
2.1 Delivery scope ..........................................................................................................................................6
2.2 Intended use .............................................................................................................................................6
2.3 Function diagram ......................................................................................................................................6
2.4 Design and mode of operation..................................................................................................................6
2.5 Equipment versions ..................................................................................................................................7
3 Assembly.........................................................................................................................................................9
3.1 General .....................................................................................................................................................9
3.2 Process connection (external pressure transmitter) .................................................................................9
3.3 Electrical connection (auxiliary energy, output signals) ..........................................................................10
4 Start-up..........................................................................................................................................................12
4.1 General ...................................................................................................................................................12
4.2 Configuration ..........................................................................................................................................12
4.3 LC display ...............................................................................................................................................12
4.4 Keyboard ................................................................................................................................................13
4.5 Menu levels.............................................................................................................................................14
5 Servicing .......................................................................................................................................................27
5.1 Maintenance ...........................................................................................................................................27
5.2 Transport ................................................................................................................................................27
5.3 Service....................................................................................................................................................27
5.4 Disposal ..................................................................................................................................................27
6 Technical data...............................................................................................................................................28
6.1 Generalities.............................................................................................................................................28
6.2 Input variables ........................................................................................................................................28
6.3 Output sizes............................................................................................................................................28
6.4 Measurement accuracy ..........................................................................................................................29
6.5 Auxiliary energy .....................................................................................................................................29
6.6 Operating conditions...............................................................................................................................29
6.7 Display and operating interface ..............................................................................................................29
6.8 Construction design ................................................................................................................................30
7 Order codes ..................................................................................................................................................34
7.1 Accessories ............................................................................................................................................35
8 EU Declaration of Conformity .....................................................................................................................36
BA_EN_EA14D 3 / 36
1 | Safety instructions FISCHER Mess- und Regeltechnik GmbH
1 Safety instructions
1.1 General
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 responsible personnel.
The following sections, in particular instructions about the assembly, commissioning 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 manufactured 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 personnel 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.
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.
1.4 Safety Instructions for the Operating Company and the Operator
The safety instructions governing correct operation of theinstrument 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 Technical Data section.
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.
4 / 36 BA_EN_EA14D
FISCHER Mess- und Regeltechnik GmbH Safety instructions | 1
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 maintenance, inspection and installation work is carried out by qualified specialized personnel.
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 serious 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 serious 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.
BA_EN_EA14D 5 / 36
2 | Product and functional description FISCHER Mess- und Regeltechnik GmbH
SP1
SP2
Sig 1
Sig 2
1,234
A
D
A
D
µC
þ û ÿ
D
A
D
A
+
1
2
1
3
4
Channel 1
Channel 2
2 Product and functional description
2.1 Delivery scope
• 1 x differential pressure evaluation unit EA14D
• 2 x pressure transmitter incl. connection cable
• Operating Manual
– Analysis unit
– Pressure Transmitter
2.2 Intended use
The device can be used as a display and switching unit in combination with two
external service sensors (0/4…20 mA and/or 0…10 V). The medium compatibility depends on the technical data of the sensors used.
2.3 Function diagram
Fig.1: Function diagram
1 External pressure sensor 2 Switch output
3 Optional analogue output 4 Micro-controller
2.4 Design and mode of operation
The device is based on an electronic evaluation circuit that analyses the measuring signals of two external pressure transmitters. The main task is the calculation of the differential pressure that can be displayed and analysed. The signals
of the external pressure transmitters can be shown separately for review. The
evaluation unit allows two independent switch points to be set. Optionally two
additional output signals can be made available.
The external pressure transmitters are connected to the differential pressure
evaluation unit via flexible plug connection lines. Only the supplied pressure
transmitters may be connected. The nominal pressures of the external sensors
6 / 36 BA_EN_EA14D
and the basic measuring range are set ex-works and stated on the type plate.
FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2
EA14 D... H ... EA14 D... M ...
Type plate
Wiring diagram
+
+
Process connection
Supply
Switch output
Standard Wall mounting
Panel installation Assembly of the mounting rails
2.5 Equipment versions
Fig.2: Equipment versions
2.5.1 Assembly types
BA_EN_EA14D 7 / 36
Fig.3: Assembly types
2 | Product and functional description FISCHER Mess- und Regeltechnik GmbH
Item no.
Basic measuring range
Input signal
Output signals
Ub
Switch contacts
Prod.-No.
24 V AC/DC
Umax. 32 V AC/DC Imax. 2 A
Pmax. 64 VA / 64 W
Δ P, P1/P2 0 ... 20 mA
0 ... 20 mA
0 ... 6 bar
EA14D006MA4KWCMW
1806856.01.086
Order code
Techn. Data
Serial number
2.5.2 Type plate
Fig.4: Type plate
8 / 36 BA_EN_EA14D
FISCHER Mess- und Regeltechnik GmbH Assembly | 3
+
1 2
4 3
5
A
1 2
4 3
5
A
3 Assembly
3.1 General
The device is designed for installation onto flat assembly plates. For screw connection to the assembly plate, the device features four assembly bores on its
back, which can be used for Ø 3.5 mm tapping screws. Optionally, the device
can be delivered with a wall-mounting plate, a front-mounted panel set or an adapter for assembly of the support rail.
3.2 Process connection (external pressure transmitter)
• By authorized and qualified specialized personnel only.
• The pipes need to be depressurized when the pressure transmitter is being
connected.
• Appropriate steps must be taken to protect the pressure sensors from pressure surges.
• Check that the pressure transmitter is suitable for the medium being measured.
• Please observe the maximum pressure levels.
The information about the connection of the pressure lines are stated in the operating instructions for the pressure transmitters. The external connection of the
two external pressure transmitters is realised with a 2 or 3-line connection depending on the model. The supplied connection lines are manufactured accordingly.
3.2.1 M12 plug connection
The plug assignment is identical for both inputs. The plug connections are
marked with (+) and (-) on the equipment.
Fig.5: Process connection
PIN Signal (2L pressure transmitter)
1 Pressure transmitter signal and supply (+) +SigT/+U
2
3 Pressure transmitter signal and supply (-) -SigT/-U
4
5 Functional earth Fe
A Coding
Tab.1: Connection for 2-wire pressure transmitter
PIN Signal (3L pressure transmitter)
1 Pressure transmitter supply (+) +U
2 Pressure transmitter signal (-) -Sig
3 Pressure transmitter supply (-) -U
4 Pressure transmitter signal (+) +Sig
5 Functional earth Fe
A Coding
Tab.2: Connection for 3-wire pressure transmitter
T
T
T
T
T
T
BA_EN_EA14D 9 / 36
3 | Assembly FISCHER Mess- und Regeltechnik GmbH
1
3
2
Plug 2
Plug 1
3.2.2 Plug connector DIN EN 175301-803 A
The plug assignment is identical for both inputs. The plugs are marked with (+)
and (-).
Fig.6: Process connection
PIN Signal (2L pressure transmitter)
1 Pressure transmitter signal and supply (+) +SigT/+U
2 Pressure transmitter signal and supply (-) -SigT/-U
3
Functional earth Fe
Tab.3: Connection for 2-wire pressure transmitter
PIN Signal (3L pressure transmitter)
1 Pressure transmitter signal (+) +Sig
2 Pressure transmitter supply (+) +U
3 Pressure transmitter signal and supply (-) -SigT/-U
Functional earth Fe
T
T
T
T
T
Tab.4: Connection for 3-wire pressure transmitter
3.3 Electrical connection (auxiliary energy, output signals)
• By authorized and qualified specialized personnel only.
• 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.
• Install the consumer-adapted fuses.
• Do not connect the connector if strained.
The information about the approved operating voltage and the approved load
for the analogue outputs are in the Technical Data section.
The M12 plugs are marked with (1) and (2) on the equipment.
Fig.7: Electrical connection
10 / 36 BA_EN_EA14D
FISCHER Mess- und Regeltechnik GmbH Assembly | 3
Mains adapter
+Out2
+U
b
-U
b
Output1
EA14D
+
+Out1
24 V AC/DC
230 V AC
+ (~)
- (~)
Plug 1
1
3
2
4
Output2
5
FE
2 1
3 4
5
A
2 1
3
A
4
SP1SP2
3.3.1 Plug 1: Auxiliary energy, analogue output
Fig.8: Analogue output connection
PIN Signal
1 Operating voltage (+) +U
2 Analogue output 2 (+) +Out2
3 Operating voltage (-) -U
4 Analogue output 1 (+) +Out1
5 Functional earth Fe
A Coding
Tab.5: Auxiliary energy and analogue output connection
b
b
3.3.2 Connector 2: Switch output
PIN Signal
1 Switching output 1 SP1
2 Switching output 2 SP2
3 Switching output 2 SP2
4 Switching output 1 SP1
A Coding
Tab.6: Connection of the switching outputs
BA_EN_EA14D 11 / 36
Loading...