Page 1
Operating manual
DE45
Digital differential pressure switch / transmitter
with colour-change LCD
09005352 BA_EN_DE45_LCD Rev. ST4-D 09/15
*09005352*
Page 2
Table of Content Fischer Mess- und Regeltechnik GmbH
ii BA_EN_DE45_LCD_Rev. ST4-D
Table of Content
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 Intended use.............................................................................................................................................6
2.2 Part designations......................................................................................................................................6
2.3 Function diagram......................................................................................................................................7
2.4 Design and mode of operation .................................................................................................................7
3 Installation ......................................................................................................................................................8
3.1 General.....................................................................................................................................................8
3.2 Process connection ..................................................................................................................................8
3.3 Electrical connection ................................................................................................................................8
4 Commissioning ............................................................................................................................................10
4.1 General...................................................................................................................................................10
4.2 Configuration ..........................................................................................................................................10
4.3 Control Elements....................................................................................................................................10
4.4 Menu levels ............................................................................................................................................12
5 Maintenance .................................................................................................................................................22
5.1 Maintenance...........................................................................................................................................22
5.2 Transport ................................................................................................................................................22
5.3 Service ...................................................................................................................................................22
5.4 Disposal..................................................................................................................................................22
6 Technical data ..............................................................................................................................................23
6.1 Input variables ........................................................................................................................................23
6.2 Output parameters .................................................................................................................................23
6.3 Auxiliary energy .....................................................................................................................................24
6.4 Measuring accuracy ...............................................................................................................................24
6.5 Application conditions.............................................................................................................................25
6.6 Construction design................................................................................................................................25
6.7 Display and operating interface..............................................................................................................27
6.8 Certificates and approvals......................................................................................................................27
7 Order Codes .................................................................................................................................................28
7.1 Device specification................................................................................................................................30
7.2 Accessories ............................................................................................................................................30
8 Attachments .................................................................................................................................................31
8.1 EC Declaration of conformity..................................................................................................................31
8.2 EAC Declaration.....................................................................................................................................32
Page 3
Fischer Mess- und Regeltechnik GmbH Masthead |
BA_EN_DE45_LCD_Rev. ST4-D 3 / 32
Masthead
Manufacturer: FISCHER Mess- und Regeltechnik GmbH
Bielefelderstr. 37a
32107 Bad Salzuflen
Telefon: +49 5222 974 0
Telefax: +49 5222 7170
eMail: info@fischermesstechnik.de
web: www.fischermesstechnik.de
Technical editorial team: Documentation representative: S. Richter
Technical editor: R.Kleemann
All rights, also those to the translation, reserved. No part of these instructions
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 2014
Page 4
1 | Safety instructions Fischer Mess- und Regeltechnik GmbH
4 / 32 BA_EN_DE45_LCD_Rev. ST4-D
1 Safety instructions
1.1 General
WARNING
This operating manual contains instructions fundamental to the installation, operation 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
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.
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Fischer Mess- und Regeltechnik GmbH Safety instructions | 1
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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.
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2 | Product and functional description Fischer Mess- und Regeltechnik GmbH
6 / 32 BA_EN_DE45_LCD_Rev. ST4-D
2 Product and functional description
2.1 Intended use
The DE45 is a multi-functional switching unit with an optional transmitter output.
It is suitable for measuring overpressure, underpressure and differential pressure in gaseous media. The device is to be exclusively used for the applications
agreed between the manufacturer and user.
Typical applications
▪ Monitoring of roll filters, extraction systems etc.
▪ Draft measurement in chimneys
▪ Flow and control pressure measurements
▪ Surface coating systems
Important features
▪ Robust, resistant to overpressure and maintenance-free
▪ Optional signal output with possibility of characteristic curve spread and re-
versal with any offset
▪ Characteristic curve implementation via table with max. 30 measuring points
▪ 4...6-digit LCD, full graphic, colour backlighting
2.2 Part designations
1
2 3
4
5
68 7
Illustration1: Part designations
1 Membrane keyboard 5 M12 connector 2 (4-pin, male)
2 LC display 6 M12 connector 1 (5-pin, male)
3 Casing lid 7 Process connection (-)
4 Lower part of casing 8 Process connection (+)
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2.3 Function diagram
21 3
4
5
6
7
Illustration2: Function diagram DE45_LCD
1 Sensor element 5 LC display
2 Signal processing 6 Analogue output
3 Switching outputs 7 Microcontroller
4 Membrane keyboard
2.4 Design and mode of operation
The device is based on a piezo-resistive sensor element that is suitable for
measuring overpressure, underpressure and differential pressure. The pressures to be compared directly act on a silicon diaphragm equipped with piezoresistive resistors.
When the pressure is equal, the measuring diaphragm is in its idle state. In the
event of differential pressure, the diaphragm is moved toward the lower pressure which changes the resistance of the attached resistors. This change is
evaluated by the device's electronics and transformed into the display, switch
contacts or an optional output signal.
The optional output signal can be dampened, spread, inverted and transformed
via a table function even if it is non-linear.
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3 | Installation Fischer Mess- und Regeltechnik GmbH
8 / 32 BA_EN_DE45_LCD_Rev. ST4-D
3 Installation
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.
At the factory, the device is calibrated for vertical installation, but the installation
position is arbitrary. For any installation positions that are not vertical, the zeropoint signal can be corrected via the installed offset correction.
The enclosure protection type IP 65 is only guaranteed, if a suitable power supply cable is used.
If the device is intended for outdoor use, we recommend permanently protecting the membrane keypad against UV radiation and using a suitable enclosure
or at least the erection of a sufficiently dimensioned canopy as a protection
measure against constant rain or snow.
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 the suitability of the instrument for the media that is to be measured.
▪ Maximum pressures must be observed (cf. Tech. data)
CAUTION
Do not blow into the pressure connections.
This can damage the pressure sensor.
Illustration3: Process connection
The pressure measuring lines must be installed on a gradient so that no water
pockets for gas measurements can be created. If the required incline is not
reached, water filters need to be installed at suitable points.
The pressure sensing lines need to be kept as short as possible and installed
without sharp bends to avoid interfering delay times.
The pressure connections are marked with (+) and (-) symbols on the device.
When the differential pressure is measured, the higher pressure is connected to
the (+) side and the lower pressure to the (-) side.
If the pressure sensing lines are already pressurised at the time of commissioning, 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.
3.3 Electrical connection
Electrical connection
▪ By authorized and qualified specialized personnel only.
▪ When connecting the device, the relevant national and international electro-
technical rules must be observed.
▪ Disconnect the system from the mains, before electrically connecting the
device.
▪ Switch the consumer-adapted fuses.
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The nominal supply voltage and the permissible range can be found in the technical data.
The admissible load / resistance for the signal output is stated in the technical
data.
The connection "Signal ground“ (-Sig) is connected internally to the supply
ground. It only serves as the ground connection for the output signal. This
means that the output signal is free of interference levels on the power supply
lines.
3-wire connection
The device is connected as follows in a 3-wire switch:
The connection "Signal ground“ (-Sig) is connected internally to the supply
ground. It only serves as the ground connection for the output signal. This
means that the output signal is free of interference levels on the power supply
lines.
Input
Output
AC
DC
Sensor
Signal
+U
b
- U
b
- Sig
+Sig
+U
b
- U
b
p
1
3
2
4
Illustration4: 3L-switch with internal bridge –Ub / -Sig
Connector 1: Supply and output signal
Illustration5: M12 Plug 5-pin
Pos Description Cable colour
A Coding A
B Internal bridge
1 +UbSupply brown
2 -Sig Signal white
3 -UbSupply blue
4 +Sig Signal black
5 n.c.
Connector 2: Switching outputs
Illustration6: M12 Plug 4-pin
Pos Description Cable colour
A Coding A
1 SP1 Switch point 1 (no) brown
2 SP2 Switch point 2 (no) white
3 SP2 Switch point 2 (com) blue
4 SP1 Switch point 1 (com) black
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4 | Commissioning Fischer Mess- und Regeltechnik GmbH
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4 Commissioning
4.1 General
All electrical supply, operating and measuring lines, and the pressure connections 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 the pressure connections do not leak before commissioning.
4.2 Configuration
During commissioning there are a number of setting options that allow the
device to be adapted to the measuring point and measuring task. To facilitate
the input, the individual parameters are placed into groups in so-called menu
levels.
Depending on the device model some menu items are not available. For instance, no switch points can be set on a device without contacts.
NOTICE
Parameter configuration on the PC
All the device settings can be made easily on the PC using the PC adapter. You
will need a EU03 Transmitter PC Interface and the associated software TransPara for this. For more details, please refer to the Accessories section. The
TransPara software makes all parameters directly visible and accessible. Also,
the entire configuration can be loaded, saved and documented as a printout.
4.3 Control Elements
LC display
Illustration7: DE45 LCD display
1 LCD with back lighting 4 Unit
2 Measurement display 4…6 digits 5 Bar chart display
3 Status display of the switch
points
6 Keyboard
In normal mode, the current measured value is shown on a 4-digit LC display.
To show very large values, it is possible to switch to a 5 or 6-digit presentation
(see Parameter MB decimal place).
Illustration8: Display SP1 SP2
The unit is shown on the right of the display. If the device is equipped with contacts, a closed contact is always symbolised by an inverted text "SP1" or "SP2".
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Various colours can be selected for the back lighting. Depending on the measured value, the colour of the back lighting can be automatically changed. This
can be used e.g. to depict good/poor differences. The back lighting can also be
deactivated.
The measured value can also be shown in a bar chart. The measured value is
also shown in smaller pictures as a number.
During the programming, the menu items and the associated parameters are
shown on the display. The device continues to function whilst the parameters
are being set; apart from one exception, the changes come into effect instantly.
The exception here is a change of switching times - here the previously valid
time must have run down.
Keyboard
Illustration9: Operating keys [LC display]
1 Page down menu Reduce value
2 Call up menu Save value
3 Page up menu Increase value
The individual menu items and parameters can be displayed using the buttons
and
. The respective menu item is selected or the parameters for making
changes are called up via the button
.
If a parameter can be changed, the display flashes. The change is made via the
buttons
and
. The value is saved with the button
.
To leave a menu level or the entire menu, select the parameter "Menu level
Quit" and press
.
Example: Switch-on point set switchpoint 1
In normal mode, press the button
to enter the menu. The menu level
Switch points appears. Press the enter key
again to call up the display
parameter.
The first parameter SP 1 On is displayed. To change this parameter, press the
button
again.
The device jumps to the input:
▪ The parameter is stated in the 1st line.
▪ The value that is to be changed is shown in the 2nd line, the display flashes.
▪ The input limits are displayed in the 3rd line (if there is one).
The required value is set with the buttons
and
and then confirmed with
.
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4.4 Menu levels
The menu levels are structured as follows:
End
menu level
Menu Level
Switch points
Menu Level
Input
Menu Level
Measuring
Menu Level
Output
Menu Level
Function
Menu Level
Display
Menu Level
System
End
menu level
Reception
Output
Output
Illustration10: Menu levels
The following tables provide an overview of the parameters of the individual
menu levels. In the Menu Level Systemyou can change to the respective national language using the language parameter. You can see which languages
are supported there.
4.4.1 Menu Level Switch points
Parameter name Description Value range
SP1 On Switch point 1 On MRS-50% … MRE+50%
SP1 Off Switching point 1 off MRS-50% … MRE+50%
SP1 Delay Switching point 1 delay 0…1800 s
SP1 Function Switching point 1 function NO, NC
SP2 On Switch point 2 On MRS-50% … MRE+50%
SP2 Off Switching point 2 off MRS-50% … MRE+50%
SP2 Delay Switching point 2 delay 0…1800 s
SP2 Function Switching point 2 function NO, NC
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The two switch outputs are configured by four parameters respectively.
For the switch point 1 these are
▪ SP1 On
▪ SP1 Off
▪ SP1 Delay
▪ SP1 Function
Accordingly for switch point 2:
▪ SP2 On
▪ SP2 Off
▪ SP2 Delay
▪ SP2 Function
The function of the individual parameters is explained for both switch points using Switch point 1 as an example.
SP1 On defines the activation point, SP1 Off the deactivation point of switch
output 1. The values are shown in the valid unit and set accordingly. The values
are shown in the valid unit and set accordingly. Both parameters can be set independently over the entire value range.
The value range ranges from MRS – 50% to MRE + 50%. MRS stands for
measuring range start and MRE for measuring range end.
Example: Measurement range = 0 … 100 Pa
The value range for this measuring range is -50 Pa … +150 Pa.
Together, the two parameters SP1 On and SP1 Off determine the switch function of switch output 1:
▪ If SP1 On > SP1 Off, the output switches on, if the measured value ex-
ceeds SP1 On. It is only switched off again if the measured value SP1 Off is
undercut (hysteresis function).
▪ If SP1 On = SP1 Off, the output switches on if the measured value exceeds
SP1 On and off if the measured value undercuts the same value (SP1 Off).
▪ If SP1 On < SP1 Off, the output switches on, if the measured value lies
within these switch points: i.e:
SP1 On < Measured value < SP1 Off (window function).
SP1 Delay allows the reaction of the switch output to be delayed by between 0
and 1800 s. This parameter applies equally for switching on and off.
SP1 Function changes the function of the switch output 1. It is possible here to
define whether the contact should work as a open contact (NO) or a break contact (NC).
4.4.2 Menu Level Input
Parameter name Description Value range
Absorption Attenuation, damping 0…100 s
Offset corr. Offset correction ⅓ basic measuring range
Zero-pt. wind. Zero-point window ⅓ basic measuring range
If there are unsteady pressure readings during operation, you can use the parameters Absorption and Zero-pt. wind. to stabilise the reading and the output
signal.
The parameter Absorption functions like a capillary throttle. However, it only
acts on the display, output signal and switch points (if these exist) but not on
the measuring cell itself.
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You can set the response time to pressure jumps in the range 0.0 to 100 s.
NOTICE
Response time
At maximum damping it can take over 2 minutes until the pressure jump from
the nominal pressure 100% to 0% is also shown as zero in the display.
In many cases, unsteady readings are not a problem during normal operating
mode, but this is not true for the idle state, i.e. if a measured value of zero is expected. The parameter Zero-pt. wind. is designed to solve this. Its value
defines a range around zero at which the measured value is set to zero (see
fig.).
The display only stops showing zero when the pressure leaves the set window.
When twice the window value is reached, the measuring pressure and the display correspond again. This avoids jumps in the display.
Differential pressure
Display value
-x-2x x 2x
Zero-point window
Illustration11: Zero-point window
It makes sense to set the Offset (zero-point displacement) if, without differential
pressure (remove measuring line), the display shows a value that is not zero.
Before the offset correction, the zero-point window must be set to zero.
Select the Offset corr. parameter and correct the reading using the buttons
or
until zero is shown in the display.
When setting the offset, the current measured value is displayed. The zeropoint window is not active during the offset setting.
4.4.3 Menu Level Measuring
Parameter name Description Value range
MB start Measuring range start Basic measuring range
MB end Measuring range end Basic measuring range
Unit Measuring range unit bar, mbar, Pa, kPa, MPa,
psi, InWc, mmWs, mmHg
Limit Measuring range limit yes, no
The transmitter output signal primarily depends on the sensed pressure. However, you have the option of adjusting the output signal to a large extent to suit
your requirements.
NOTICE
Adjustment of the output signal
The basic measuring range (indicated on the type label) and the type of output
signal (voltage / current) are not variable.
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The parameters MB start and MB end initially define the two pressures
between which the output signal will change at all. Both values are adjustable
across the entire basic measuring range. The set values also refer to the pressure in the respective unit. However, the signal values (current / voltage) for
‘Start of measuring range’ and ‘End of measuring range’ are fixed.
If MB start is smaller than MB end, this is called an increasing characteristic
curve; the output signal increases as the pressure increases.
If MB end is smaller than MB start, this is a decreasing characteristic curve
and the output signal decreases as the pressure increases.
The difference between the values MB start and MB end must be at least 25 %
of the basic measuring range.
You can select a unit other than the unit of the basic measuring range with the
parameter Unit. The user should remember however that not every unit is suitable. The conversion is automatic.
The parameter Limit allows the display, output and switching points to be limited to the range between Start of measuring range and End of measuring
range. This makes sense when content is measured to avoid "negative contents". If Limit is set to "no", those measured values that are greater or smaller
than the end values are shown.
4.4.4 Menu Level Output
Parameter name Description Value range
min. output min. output
0.0 … 21.0 mA or
0.0 … 11.0 V
max. output max. output
Error signal Measuring range unit
The parameters min. output, max. output and error signal define the limits of
the output signal that may not be undercut or exceeded regardless of the pressure. The limit values take priority over the range defined by the MB start and
MB end parameters! These parameters primarily serve to prevent error mes-
sages in downstream systems caused by brief overstepping of measuring
ranges.
The parameter min. output is usually only used for devices with an output signal 4…20 mA because frequently values of below 3.8 mA are evaluated as error signals.
The max. output value can be used for the voltage and current to limit the
maximum value.
The value defined via the parameter Error signal is issued if the device detects
an internal error and can no longer work correctly. It should be noted here that
not all potential errors and faults can be detected by the device itself.
4.4.5 Menu Level Function
The Function menu level is a variable menu whose appearance depends on the
value of the Function parameter. There are linear, square rooted and table
functions
Linear function
The input signal is linear before being sent to the display and the output. The
range defined in the menu "Measuring" serves as the measuring range. If the
function LINEAR is active, the other menu items are cancelled.
Parameter name Description Value range
Function Function Value = linear
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Square rooted function
Here, the input signal is square rooted before being sent to the display and the
output. This is necessary e.g. for flow measurements with differential pressure.
A free unit can be defined for the display. To do this, the start and end of the
display range and the number of decimal points are defined. It is also possible
to define the unit with 4 characters.
Parameter name Description Value range
Function Function Value = square rooted
MB decimal pl. Measuring range
decimal places
1234, 123.4, 12.34,
1,234, 12345, 123456
MB start Measuring range start -9999 … +9999
MB end Measuring range end -9999 … +9999
MB unit Measuring range unit 4 characters
The following section contains descriptions of the parameters MB decimal pl.,
MB start, MB end and MB unit to describe the table function.
Tables function
This function allows free adjustment of the input variable to the display and output via a table with up to 30 support points. A value pair comprising a measured
value and display value is issued for every support point.
NOTICE
Change of parameter
When switching from TABLE to another function, the table is initialised again
and the existing values are lost.
Parameter name Description Value range
Function Function Value = Table
MB decimal pl. Measuring range
decimal places
1234, 123.4, 12.34,
1,234, 12345, 123456
MB start Measuring range start -9999 … +9999
MB end Measuring range end -9999 … +9999
MB unit Measuring range unit 4 characters
No. of pairs Number of pairs n = 3…30
Value pair1 Value pair 1
MB-start … MB-end
Value pair2 Value pair 2
Value pair3 Value pair 3
∙∙∙
Value pair30 Value pair 30
The display range is defined with the parameters MB decimal pl., MB start
and MB end. The user can select the configuration freely.
Using the parameter MB decimal pl., it is possible to select between a 5 or 6digit presentation. The resolution is not increased. Only an extra zero or two
zeros are added. This serves the correct display of larger values. The measuring range must be positive for the 6 digit presentation.
The MB unit gives the user the option of defining a completely independent
unit. Letters, numbers or special characters can be used. The unit can be max.
4 characters long.
If the function TABLE is selected, then it is also necessary to state the No. of
pairs. It is defined here how many pairs of values (support points) are used in
the table. A table is made up of at least 3, max. 30 support points.
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NOTICE
Number of value pairs
If the number of value pairs is changed, the table is initialised again and the existing values are deleted.
Value pair
2
+14,6 mbar +8,6 %
+0,0 ... +100,0 mbar
1
2
1 input mark (value flashes)
2 allowed range of values
Illustration12: Value pair
Start End
Measuring range
Output / display [%]
100
0
0.0 100.0
Value pair 2
Illustration13: Table function (example)
The individual value pairs can be seen and changed with the Value pair1 to
Value pair30 parameters. A value pair comprises a measured value (left side)
and a display value (right side). The measured value must lie within the measuring range and the display value must lie within the defined "free unit". The respective limits are shown during input. The table must contain either increasing
or decreasing values. the table must contain either continuously increasing or
continuously failing values. A change from an increasing to a decreasing characteristic curve within a support point table is not allowed.
4.4.6 Menu Level Display
The Display menu level is a variable menu whose appearance depends on the
value of the colour parameter. In addition to the various colours for the background lighting, there are also two auto-functions with colour switching available.
Parameter name Description Value range
Colour Colour Off, red, green, yellow, blue, pink,
turquoise, white,
Auto1: Red-green
Auto2: Red-yellow-green
Lighting Lighting time 0 s, 10 … 600 s
Contrast Contrast 15 … 45
Bar chart Barchart display yes, no
The mots important parameter is Colour. A fixed colour can be defined for the
background colour here. There are also two auto-functions with colour switching available. Alternatively, the background illumination can be permanently deactivated.
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If permanent lighting is not required, the parameter Lighting time can be used
to define when the lighting should be switched off after the last time a button is
pressed. In addition to permanent lighting (0 s), automatic shut-down after 10…
600 s is also possible. The set time is only valid if the parameter Colour is not
set to "off".
Amongst other things, the legibility of the display depends on the temperature
and the reading angle. To ensure optimised legibility, the display can be adjusted using the parameter Contrast. When the contrast is changed, it is possible
that the display appears empty or almost completely black. In this case, the
contrast must be turned up or down.
Via the parameter Bar chart, the display can be switched between a display
where the measured value is either shown in large digits or the display shows
small digits and an additional barchart.
Auto1: Colour-change red to green
In the mode with the automatic colour switchover, it is possible to enter the required switch thresholds "red-green switchover", "green-red switchover".
The switching thresholds can be moved within the measuring range. The series
of switch points cannot be altered.
Parameter name Description Value range
Red-Gr. switch. Red-green switching MRS - 50% …
MRE + 50%
Gr-Red switch. Green-red switching
Hysteresis Hysteresis 0.1 … 10.0 %
Delay Delay 0 … 1800 s
Colour Colour Off, red, green, yellow, blue,
pink, turquoise, white,
Auto1: Red-green
Auto2: Red-yellow-green
Lighting Lighting time 0 s, 10 … 600 s
Contrast Contrast 15 … 45
Bar chart Barchart display yes, no
Basic measuring range
MRE
F1 F2
MRS
Illustration14: Function Auto1
MRS MB-start Measuring range start
F1 Red-Gr. switch. Red-green switching
F2 Gr-Red switch. Green-red switching
MRE MB-end Measuring range end
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The parameter Hysteresis can be used to prevent fast and unwanted colour
changes. The hysteresis is set in the range 0.1... 10%.
NOTICE
Overlapping colour areas
Note: In the case of large hysteresis values, steps must be taken to ensure that
the ranges of the individual colours do not overlap. Otherwise it is possible that
the colour change may not function in the desired way.
The parameter Delay offers a further option to prevent unwanted colour
changes. The colour change here can be delayed between 0…1800 s.
The parameter Lighting can be used to define when the lighting should be
switched off after the last time a button is pressed. In addition to permanent
lighting, automatic shut-down after 10…600 s is also possible. The set time is
only valid if the parameter Colour is not set to "off". The lighting can be
switched on permanently with the value 0s.
The legibility of the display can be adjusted using the parameter Contrast.
When the contrast is changed, it is possible that the display appears empty or
almost completely black. In this case, the contrast must be turned up or down
again.
Via the parameter Bar chart, the display can be switched between a display
where the measured value is either shown in large digits or the display shows
small digits and an additional barchart.
Auto2: Colour-change red-yellow-green
In the Auto 2 mode with the automatic colour switchover, it is possible to enter
the required switch thresholds "red-yellow switchover", "yellow-green
switchover", green-yellow switchover, "yellow-red switchover".
The switching thresholds can be moved within the measuring range. The series
of switch points cannot be altered.
Parameter name Description Value range
Red-Yell.switch. Red-yellow switchover
MRS - 50% …
MRE + 50%
Yell.-Gr.switch. Yellow-green switchover
Gr.-Yell. switch Green-yellow switchover
Yell.-Red switch Yellow-red switchover
Hysteresis Hysteresis 0.1 … 10.0 %
Delay Delay 0 … 1800 s
Colour Colour Off, red, green, yellow, blue,
pink, turquoise, white,
Auto1: Red-green
Auto2: Red-yellow-green
Lighting Lighting time 0 s, 10 … 600 s
Contrast Contrast 15 … 45
Bar chart Barchart display yes, no
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4 | Commissioning Fischer Mess- und Regeltechnik GmbH
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Basic measuring range
MRS MRE
F1 F2 F3 F4
Illustration15: Function Auto2
MRS MB-start Measuring range start
F1 Red-Yell.switch. Colour-change red to yellow
F2 Yell.-Gr.switch. Colour-change yellow to green
F3 Gr.-Yell. switch Colour-change green to yellow
F4 Yell.-Red switch Colour-change yellow to red
MRE MB-end Measuring range end
In this menu the same parameters are used as those described in the previous
sections.
NOTICE
Unused range
If a range is not to be used, the associated switch thresholds (F1…F4) can be
set to the same value.
Example The parameter Colour is set to Auto2. Only the green, yellow and red ranges
are required here. To fade out the lower ranges red and yellow, the switch
thresholds "red-yellow switching" and "yellow-green switching" are set to the
start of the measuring range.
Basic measuring range
MRS MRE
F1
F2
F3 F4
Illustration16: Example Auto2
4.4.7 Menu Level System
Parameter name Description Value range
Language Language switchover DE, EN, FR, ES,
IT,PT,HU
Software Info Information about the Software Device type, con-
troller ID, firmware
version
Config Info Information about the configur-
ation
Basic measuring
range, output signal,
contacts
Statistics Statistics Operation time,
switch cycles of the
contacts
Password Password 0/1…999
Load config Load configuration
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Parameter name Description Value range
Save config. Save configuration
The user menu can be switched to German, English, French, Spanish, Italian,
Portuguese or Hungarian using the parameter Language.
The menu items Software - Info and Config - Info provide information about
the device. This information helps to answer questions about the device quickly.
▪ The device type, controller ID and the firmware version is shown in the soft-
ware info.
▪ The basic measuring range, the defined output signal and existing contacts
are stated in the Config Info.
The Statistics provide information about the operating time and the relay
switching cycles from the time of delivery. The operating time is shown in days
(d) and hours (h)
A Password can be used to protect the menu against unauthorised access.
The password is a figure from 1 to 999. The input 0 means that no password is
active.
The password needs to be set if the user presses the button in normal mode to
enter the menu. If a wrong password is entered, the system automatically
jumps back to normal mode again. If no password is active, the display immediately jumps to the menu.
NOTICE
Forgotten password
The user cannot restore a forgotten password. Please contact the manufacturer
in this case.
The user can load a saved configuration via the menu item Load config. This
means that a functional set of parameters can be loaded after trying out various
settings.
The menu item Save config. serves to save the existing parameters in a protected memory area. This is helpful if the settings of a functional device needs
to be optimised. Save config. and Load config. can be used to quickly restore
the initial status again.
NOTICE
Delivery condition
If the user has not yet saved a configuration, the default values (status on delivery) are loaded. In this case, any measuring range spreads or switch points are
reset and the device needs to be newly configured.
Page 22
5 | Maintenance Fischer Mess- und Regeltechnik GmbH
22 / 32 BA_EN_DE45_LCD_Rev. ST4-D
5 Maintenance
5.1 Maintenance
The instrument is maintenance-free. We recommend the following regular inspection to guarantee reliable operation and a long service life:
▪ Check the function in combination with downstream components.
▪ Check the leak-tightness of the pressure connection lines.
▪ Check the electrical connections.
The exact test cycles need to be adapted to the operating and environmental
conditions. In combination with other devices, the operating instructions for the
other devices also need to be observed.
5.2 Transport
The measuring device must be protected against impacts. It should be transported 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 ondismantled 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 recycling guidelines or reuse them.
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BA_EN_DE45_LCD_Rev. ST4-D 23 / 32
6 Technical data
Please also observe the order code here.
6.1 Input variables
Measuring variable Differential pressure for gas-like media
Measuring Range
Measuring Range Stat. operating
pressure max.
Bursting
pressure
mbar Pa kPa mbar mbar
0…4 0…400 0…0.4 50 150
0…6 0…600 0…0.6 50 150
0…10 0…1000 0…1.0 100 300
0…16 0…1600 0…1.6 100 300
0…25 --- 0…2.5 250 750
0…40 --- 0…4.0 250 750
0…60 --- 0…6.0 500 1500
0…100 --- 0…10.0 500 1500
0…160 --- 0…16.0 1500 3000
0…250 --- 0…25.0 1500 3000
±2.5 ±250 ±0.25 50 150
±4 ±400 ±0.4 50 150
±6 ±600 ±0.6 50 150
±10 ±1000 ±1.0 100 300
±16 ±1600 ±1.6 100 300
±25 --- ±2.5 250 750
±40 --- ±4.0 250 750
±60 --- ±6.0 500 1500
±100 --- ±10.0 500 1500
6.2 Output parameters
Output signal 0…20 mA
4…20 mA,
0…10 V
Signal range 0.0…21.0 mA
0.0…11.0 V
Apparent ohmic resistance 0/4…20mA:
Ub ≤ 26 V : RL ≤ (Ub – 4 V)/0,02 A
Ub > 26 V : RL ≤ 1100 Ω
0…10V:
RL ≥ 2 kΩ
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Switching outputs 2 potential-free relay contacts
2 potential-free semiconductor switches (MOSFET)
Relay MOSFET
Progr. switching function Open contact (NO)
Break contact (NC)
One-pin activator (NO)
One-pin deactivator (NC)
Max. switching voltage 32 V AC/DC 3…32 V AC/DC
Max. switching current 2 A 0.25 A
max. switching output 64 W / 64 VA 8 W / 8 VA
RON ≤ 4 Ω
6.3 Auxiliary energy
Rated Voltage
24 V AC/DC
Admissible operating
voltage
Ub = 12…32 V AC/DC
Electrical connection
2 x round plug connector M12
A Coding
B Bridge
1 Power supply (+Ub)
2 Output (- Sig)
3 Power supply (-Ub)
4 Output (+ Sig)
5 not connected
A Coding
1 Switch output 1
2 Switch output 2
3 Switch output 2
4 Switch output 1
Illustration17: Electrical connection DE45_LCD
6.4 Measuring accuracy
Characteristic curve deviation
(Non-linearity and hysteresis)
Maximum: 1.0 % FS
Typical: 0.5 % FS
The information refers to a linear, non-spread characteristic curve at 25 C and
applies to all measuring ranges. FS (Full Scale) refers to the basic measuring
range.
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BA_EN_DE45_LCD_Rev. ST4-D 25 / 32
Temperature coefficient
(TK)
Measurement
range
TK zero-point
[% FS/10K]
TK span
[% FS/10K]
mbar typ. max. typ. max.
0…4 0.2 1.0 0.3 1.0
0…6 0.2 1.0 0.3 1.0
0…10 0.2 0.4 0.3 0.3
0…16 0.2 0.4 0.3 0.3
0…25 0.2 0.4 0.3 0.3
0…40 0.2 0.4 0.3 0.3
0…60 0.2 0.4 0.3 0.3
0…100 0.2 0.4 0.3 0.3
0…160 0.2 0.4 0.3 0.3
0…250 0.2 0.4 0.3 0.3
±2.5 0.2 1.0 0.3 1.0
±4 0.2 0.5 0.3 0.5
±6 0.2 0.4 0.3 0.3
±10 0.2 0.4 0.3 0.3
±16 0.2 0.4 0.3 0.3
±25 0.2 0.4 0.3 0.3
±40 0.2 0.4 0.3 0.3
±60 0.2 0.4 0.3 0.3
±100 0.2 0.4 0.3 0.3
With reference to the basic measuring range (FS), Compensation range
0..60°C.
6.5 Application conditions
Ambient conditions
Ambient temperature -10 … +70 °C
Media temperature -10 … +70 °C
Storage temperature -20 … +70 °C
Enclosure protection
class
IP65 as per EN 60529
EMC EN 61326-1:2006
EN 61326-2-3:2006
6.6 Construction design
Process connection 2x aluminium hose screw connection for 6/4 mm or 8/6 mm hose.
2x pneumatic plug connector for 6/4 mm or 8/6 mm hose.
Materials
Housing Polyamide (PA) 6.6
Media-contacting
material
Silicon, PVC, aluminium, brass
Assembly Attachment boreholes on the rear for attaching the mounting plates.
Wall mourning using the wall mounting plate.
Panel installation using the panel installation set.
Assembly of the mounting rails using an adapter.
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6 | Technical data Fischer Mess- und Regeltechnik GmbH
26 / 32 BA_EN_DE45_LCD_Rev. ST4-D
Wall mounting plate
M12 plug connection
90
75
Ø5
75
83
70.5
61.5
78
4x boreholes for
sheet metal screw Ø3.5
Hose screw connection
for 6 or 8 mm hose
Rear view
without wall mounting plate
63
Connector 1
Connector 2
26
Pneumatic plug connector
for 6 or 8 mm hose
Wall mounting
Installation of front panel
Wall thickness 3-5 mm
Ø3.3
R5
92 ±0.2
90 ±0.2
75 ±0.2
77 ±0.2
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BA_EN_DE45_LCD_Rev. ST4-D 27 / 32
Assembly of the mounting rails
Attachment element
38
36
2525
40
TS35
TS35
TS15
TS32
40 36
35
35
15
32
16242121
7,515515
61,5
6.7 Display and operating interface
Display 4...6-digit LCD, full graphic, colour backlighting
Programming
Attenuation 0.0 … 100.0 s (jump response time 10 / 90 %) for
signal output; separately also for display
Switch output Switch-off point, switch-on point, response time
(0...100s), function (NC / NO contact)
Measuring range unit mbar / Pa / "free unit", starting value, end value and
decimal point for "free unit"
Output signal User-definable within the basic measuring range
(1)
Zero-point stabilising 0…⅓ of the basic measuring range
(2)
Zero point correction ±⅓ of the basic measuring range
(3)
Implementation of characteristic curve
linear, square rooted, table with 3...30 support points
Password 001 ... 999 (000 = no password protection)
(1) Max. effective spread 4:1
(2) measured values around zero are set to zero.
(3) To compensate different installation positions.
6.8 Certificates and approvals
EC Declaration of conformity (see Attachment)
Page 28
7 | Order Codes Fischer Mess- und Regeltechnik GmbH
28 / 32 BA_EN_DE45_LCD_Rev. ST4-D
7 Order Codes
1 2
0 0
5 6 7 8 9 10 11 12
Pressure connection
Output signal
Operating voltage
Measuring unit
Electrical connection
Assembly option
D E 4 5
13 14 15
unused
16 17 18 19 20 213 4Code no.
Type
Measurement range
Device specification
Illustration18: Order code DE45_LCD
Measuring range:
[1.2] (Code no.)
52 0 … 4 mbar
53 0 … 6 mbar
54 0 … 10 mbar
55 0 … 16 mbar
56 0 … 25 mbar
57 0 … 40 mbar
58 0 … 60 mbar
59 0 … 100 mbar
60 0 … 160 mbar
82 0 … 250 mbar
A6 -2.5 … +2.5 mbar
A7 -4 … +4 mbar
A8 -6 … +6 mbar
A9 -10 … +10 mbar
B1 -16 … +16 mbar
B2 -25 … +25 mbar
C5 -40 … +40 mbar
B3 -60 … +60 mbar
B4 -100 … +100 mbar
D7 0 … 400 Pa
J7 0 … 500 Pa
D8 0 … 600 Pa
D9 0 … 1000 Pa
E1 0 … 1600 Pa
L6 -250 … +250 Pa
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BA_EN_DE45_LCD_Rev. ST4-D 29 / 32
[1.2] (Code no.)
N1 0 … 1 kPa
N2 0 … 1.6 kPa
N3 0 … 2.5 kPa
N4 0 … 4 kPa
N5 0 … 6 kPa
E5 0 … 10 kPa
L8 -1 … +1 kPa
L9 -1.6 … +1.6 kPa
M6 -2.5 … +2.5 kPa
M7 -4 … +4 kPa
M8 -6 … +6 kPa
Pressure connection:
[5.6] (Code no.)
40 Aluminium screw connection for 6 / 4 mm hose
41 Aluminium screw connection for 8 / 6 mm hose
P6 Pneumatic plug connector for 6/4 mm hose
P8 Pneumatic plug connector for 8/6 mm hose
Output signal:
[7] (Code no.)
0 without output signal
A 0... 20 mA (3-wire)
P 4... 20 mA (3-wire)
C 0 … 10 V (3-wire)
Operating voltage
[8] (Code no.)
K 24 V AC/DC
Measuring unit:
[9] (Code no.)
W Selectable pressure units
Measured value display /
contact elements:
[10] (Code no.)
C 4-digit colour change LCD / 2 relay contacts
D 4-digit colour change LCD / 2 semiconductor switches
Electrical connection
[11] (Code no.)
M M12 plug connector (plastic)
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7 | Order Codes Fischer Mess- und Regeltechnik GmbH
30 / 32 BA_EN_DE45_LCD_Rev. ST4-D
Assembly option:
[12] (Code no.)
0 Standard (attachment boreholes on rear side)
S Mounting rail installation
T Panel mounting set
W Wall mounting
7.1 Device specification
Device specification on request.
7.2 Accessories
Order no. Designation No. of
Poles
Length
06401993 Connection cable for switch outputs
with M12 connector
4-pin 2 m
06401994 Connection cable for switch outputs
with M12 connector
4-pin 5m
06401995 Connection cable for supply/signal
with M12 connector
5-pin 2 m
06401996 Connection cable for supply/signal
with M12 connector
5-pin 5 m
EU03.F300 Transmitter PC Interface incl. PC software
Page 31
Fischer Mess- und Regeltechnik GmbH Attachments | 8
BA_EN_DE45_LCD_Rev. ST4-D 31 / 32
8 Attachments
8.1 EC Declaration of conformity
Illustration19: CE_DE_EN_DE45_LCD
Page 32
8 | Attachments Fischer Mess- und Regeltechnik GmbH
32 / 32 BA_EN_DE45_LCD_Rev. ST4-D
8.2 EAC Declaration
Illustration20: EAC_RU_D-DE-ME61-B-00005
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