Labom PASCAL CV4 User manual

Pressure transmitter PASCAL CV4
Type series CV4xxx
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 Questions about this device? Hotline [phone] - 444
LABOM Mess- und Regeltechnik GmbH Im Gewerbepark 13 27798 Hude Deutschland
Tel.: [phone] Fax: [phone] e-mail: [e-mail] www.labom.com
BA_080
Rev 1J8
Page 1/24
Operating Instructions
1 General Information.......................................................................................................2
1.1 General Safety Notes..............................................................................................2
1.2 Intended Use...........................................................................................................2
1.3 Conformity with EU Regulations..............................................................................2
2 Transportation and Storage..........................................................................................2
3 Installation and Commissioning ..................................................................................2
3.1 Devices with Diaphragm Seal .................................................................................2
3.2 Mechanical Installation............................................................................................3
3.3 Mount / dismount display ........................................................................................3
3.4 Electrical Connection ..............................................................................................3
3.5 Device orientation ...................................................................................................4
3.6 Adjustment of the display contrast ..........................................................................4
4 Operation........................................................................................................................4
4.1 Maintenance / Service.............................................................................................4
5 Disassembly...................................................................................................................5
6 User Manual...................................................................................................................6
6.1 Basics of the Operating Concept.............................................................................6
6.2 Display Mode / Measured Value Display.................................................................7
6.3 Menue Mode / Operating Menue...........................................................................10
6.4 The Menue Tree....................................................................................................13

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1 General Information
This document contains necessary information for the proper installation and use of this
device. In addition to this instruction, be sure to observe all statutory requirements, appli-
cable standards, the additional technical specifications on the accompanying data sheet
(see www.labom.com) as well as the specifications indicated on the type plate.
1.1 General Safety Notes
The installation, set up, service or disassembly of this device must only be done by
trained, qualified personnel using suitable equipment and authorized to do so.
Warning
Media can escape if unsuitable devices are used or if the installation is not
correct.
Danger of severe injury or damage
Ensure that the device is suitable for the process and undamaged.
1.2 Intended Use
The device is intended to measure pressure of gases, vapors and liquids as specified in
the data sheet.
1.3 Conformity with EU Regulations
The CE-marking on the device certifies its compliance with the applicable EU Directives for
placing products on the market within the European Union.
You find the complete EU Declaration of Conformity (document no. KE_048) at
www.labom.com.
2 Transportation and Storage
Store and transport the device only under clean and dry conditions preferably in the origi-
nal packaging. Avoid exposure to shocks and excessive vibrations.
Permissible storage temperature: -40…80 °C
3 Installation and Commissioning
Ensure that the device is suitable for the intended application with respect to pressure
range, overpressure limit, media compatibility, temperature range and process connection.
After the mechanical installation and electrical connection is completed, the device is
ready for operation as soon as the power supply is switched on.
3.1 Devices with Diaphragm Seal
Remove the protective cap or protective wrapping from the diaphragm only just before in-
stallation to prevent contamination or damage.
The diaphragm must not be touched. Do not place the device on its diaphragm. Even
small scratches or deformations may negatively influence the zero point or other charac-
teristics of the device.
Pressure transmitter and diaphragm seal are a closed system that must not be separated.
You can find further information about diaphragm seals in the document TA_031 on
www.labom.com.

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3.2 Mechanical Installation
Use gaskets, if required, that are suitable for the process connection and resistant to the
media.
Before starting operation, check the process connection carefully for leaks under pressure.
You can use the device in any mounting position. Normally the transmitter is adjusted for a
vertical mounting position. A different mounting position in combination with a small nomi-
nal range might cause a zero point offset. In this case a zero point adjustment might be
necessary.
3.3 Mount / dismount display
In order to dismount the display, turn off the device cover and pull out the display. The
three small studs at the outer diameter of the display (all 120°) facilitate removal.
The display cable can be disconnected either at the display or at the clamp module. When
reconnecting the cable, please take polarity (red lead) into account. Otherwise the cable
will not fit into the plug.
When mounting the display, you can choose its orientation. Complete the process by firmly
reattaching the cover.
3.4 Electrical Connection
Complete the mechanical installation before you connect the device electrically.
Set up all electrical connections while the voltage supply is switched off.
Output (2-wire) 4...20 mA (20...4 mA)
Permissible supply voltage U
V
= 12…30 VDC
Permissible load R
B
≤(U
V
- 12 V) / 22 mA
Circular connector M12 Cable gland
( )
(+)
(-)
n.c.
Figure 1: Options for the electrical connection
Pay attention to the following points regarding electrical connections via cable gland:
−The display can be dismounted as described in Chapter 3.3. Use a small screwdriv-
er to press the spring of the terminal block completely downwards before inserting
the cable. Otherwise, it is not possible to ensure a safe electrical connection.
−Do not forget to tighten the cable gland after the electrical connection is finalised.

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3.5 Device orientation
The case can be turned in relation to the process connection as well as the display in rela-
tion to the case.
Turning the case in relation to the process connection (±170°) allows to choose the posi-
tion of the electrical connection. Turning the display in relation to the case allows to
choose the viewing angle independently of the position of the electrical connection.
3.6 Adjustment of the display contrast
The display contrast can be adjusted.
Press and hold the ESC key and use the arrow keys to adapt the contrast.
The setting is saved and the contrast screen closes as soon as the ESC key is released.
4 Operation
During operation, take care that the device remains within its intended pressure and tem-
perature ranges. No other monitoring is necessary.
Permissible ambient temperature: -20…80 °C
Optionally, you can order devices with an extended ambient temperature range
of -40...80 °C.
4.1 Maintenance / Service
When properly installed in accordance with applicable specifications, this device is
maintenance-free. However, we recommend an annual recalibration of the device.
In case of damage or defects, the customer can replace the following elements:
−Display module
−Cable glands (if applicable)
For defects to other components, repairs must be performed in the factory.

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5 Disassembly
When measuring hot media, make sure that the device has cooled down prior to any dis-
mounting or wear appropriate protective clothing to avoid burns.
Switch off the power supply to the device before disconnecting the electrical connections.
Once this is done, the device may be mechanically removed.
Warning
Opening pressurized lines might cause severe injuries.
Danger of severe injuries or damage

Relieve the process pressure before attempting to remove the device.
Shut off the pressure supply for all feed lines to the device and relieve the
pressure in them.
Warning
Hazardous deposits and residues might remain on opened process connec-
tions and removed devices.
Danger of injury

After the device has been removed, seal off the measuring point and
mark the open process connection accordingly. Consider a possible dan-
ger due to residues when handling the removed device.

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6 User Manual
The device can be configured via the display module as well as the HART protocol. The
following pages describe operation and configuration of the device using the display mod-
ule.
An overview of the menue structure can be found on the last page of this document.
6.1 Basics of the Operating Concept
The display module consists of a dot-matrix
display with 80x128 pixels as well as a
4-button control panel.
The four buttons below the display allow an
intuitive operation of the device. The gen-
eral functionality of the buttons is identical in
all operating modes.
Figure 2: Control elements
If you press and hold the up or down button, it will automatically be triggered multiple
times. This allows to easily navigate through longer selection lists. If you press and hold
the ESC button, you always return to the measured value display.
Button Function
/ Select function, increase/decrease value
OK Confirm selected function or selected value
ESC Cancel action
ESC long Return to measured value display
Table 1: General button functions
The structure of the display is the same in every operating mode. The display area is di-
vided into three zones:
−Header
−Icon indicating device status
−Data area
Header
Icon
Data area
Figure 3: Display structure

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The icon for the device status (see 6.2.3) is displayed in each operating mode. The con-
tents of the header and the data area depend on the operating mode:
Display of measured value
−Header: Icon description, if applicable. Otherwise "Value"
−Data area: Measured values and parameters according to the selected display
mode (see 6.2.4)
Display of device data (see 6.2.1)
−Header: Title for the displayed device data
−Data area: Device data
Operating menue
−Header: Selected menue item
−Data area: Submenue or dialogue during setting procedure
6.2 Display Mode / Measured Value Display
After applying the supply voltage and completion of the initialisation, the device switches to
the display mode. In the display, the currently measured value is shown.
If the measured value is larger than the displayable number due to setting a fixed decimal
point or an inappropriate unit, the largest displayable number is shown flashing. In this
case please select a different setting of the decimal point or a different unit.
In display mode you can review the device data, enter the menue or lock/unlock the
menue.
Button Function
/ Scroll through the pages with device data
ESC Return to measured value display
OK Go to the operating menue
ESC+OK long Activate / deactivate menue lock (see 6.3.2)
Table 2: Button functions in display mode
6.2.1 Quick Access to Device Data
You can access a number of device parameters directly from the measured value display
using the / -buttons. This allows a quick overview of the device configuration.
With the -button you can display variable data (min-/max-values), with the -button
static information such as configuration data.
From any screen of the device data, you can enter the operating menue with OK and go
back to the measured value display by pressing ESC.

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The sequence of the screens with device data is as follows:
−Min-/Max values (pressure and sensor temperature)
−----- Measured value (starting point) ---
−Pressure measur. (gauge/abs, nominal range, damping)
−Current output (characteristic curve, limits, measuring range)
−HART data (address, tag, descriptor)
−Identification (device ID, order number, serial number)
−Module information (hardware and software versions, serial numbers)
6.2.2 Locking the Menue
You can lock the menue with a key combination at the device. Press and hold the ESC-
key and press then OK to activate the menue lock. Hold down both keys until the display
confirms that the menue lock has been activated. You can still access the device data but
the menue is now locked.
An active menue lock is indicated by the header text „Write protection“ in combination with
the lock icon.
Use the same key combination to unlock the menue again.
6.2.3 Icons indicating device status
In the top right corner of the display, depending on the device status an NE107-conform
icon is displayed. The following icons are defined:
Error/failure Critical error, alarm current is activated
The error description is indicated in the display. It restarts
after confirming the error.
Warning Temperature or pressure limits are exceeded.
Limit reached The output current reached the pre-set upper or lower cur-
rent limit.
Function control
The output current corresponds to the measured value or
current simulation, but not to the applied pressure value.
Write protection
The write protection of the device was activated via HART
or with the key combination in the display.
Table 3: Icons for device state
The list of icons is sorted in descending priority. Only the icon with the highest priority is
shown. The two most important icons for fault and/or warning are flashing when displayed.

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6.2.4 Display layouts
You can configure the layout of the measured value display as well as the displayed infor-
mation individually. There are four different layouts available:
Designation
Layout Description Example
Four values
1st value
2nd value 3rd value
4th value
Under the main value, three additional
values are shown. The 4th value can
use the entire display width.
Three val-
ues
1st value
3rd value
2nd value
Under the main value, two additional
values are shown. Both of them can
use the entire display width.
Two values
1st value
2nd value
Two values are shown in the same
size, one under the other.
Large dis-
play
1st value
2nd value unit
The main value is shown at the maxi-
mum size (best readability from a dis-
tance). One additional value can also
be shown.
Table 4: Display layouts
You can define what information shall be shown in the layout’s placeholders.
You can select the 1st value (main value) from the following data:
1. Pressure with the selected unit
2. Pressure in per cent of the measuring range
3. Pressure in milliampere
For all further values, you can additionally choose from the following data:
−Bar graph
−Sensor temperature
−Device ID (see 6.4.9.1)
−HART tag
−HART descriptor
When information (such as the device ID) cannot be displayed in a short layout placehold-
er, "###" appears on the screen. Then select another layout or assign the value to a longer
layout placeholder.
You can configure the display mode in the menue "Display" submenue "Display mode"
(see 6.4.4.2).

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6.3 Menue Mode / Operating Menue
Press OK in the measured value display to go to the operating menue. Then the main
menue appears in the display.
In the operating menue you can navigate in the menues by using the arrow buttons. The
selected menue item is indicated by triangles on the left and right. The OK button selects
the menue item or switches to the corresponding submenue. You can return to the higher-
level menue by pressing ESC. From the main menue, pressing ESC returns to the meas-
ured value display.
From every position in the operating menue, you can return to the measured value display
by pressing and holding the ESC button (for at least one second).
OK
ESC
ESC OK
ESC
ESC long
Figure 4: Navigating the operating menue
In long menues and selection lists, a scroll bar on the left side shows the position of the
currently selected item.
Menue items that open a setting dialogue differ from submenues by three trailing points,
e.g. "Lower range …" (select via setting dialogue) and "System" (select via submenue).
If no button is pressed in menue mode for five minutes, the device automatically returns to
the display mode without saving any values.
Button Function
Scroll up in the menue, increase value/position in list
Scroll down in the menue, decrease value/position in list
OK Select menue, confirm value/list entry
ESC Cancel the data entry or menue selection, return to the next higher
menue
ESC long Cancel menue mode, return to display mode
Table 5: Button functions in the operating menue

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6.3.1 Displaying and entering parameters
When entering parameters, either numerical inputs or a selection lists with fixed options is
available.
In general, the actual selection will be displayed first (view mode). Press OK to switch to
edit mode to change the parameter. After this is done, the display will then switch back to
view mode so that you can check the new setting.
6.3.1.1 Selection of a value from a selection list
Up to four options are shown at the same time in one selection list. When the selection list
is longer, a scroll bar on the left side of the display indicates the position of the selected
item in the selection list.
When you press the ESC button, you cancel the entry and go back to view mode. The se-
lected value is not saved.
With the OK button, the selected value is saved. Saving the value is confirmed with an in-
formation window and the new value is shown in view mode.
With ESC, you leave the view mode and return to the menue.
OK
ESC ESC
OK
OK
ESC
ESC
menue view mode edit mode
Figure 5: Procedure for value selection (e.g. changing language from english to german)
6.3.2 Setting a numeric value
When setting numeric values, the screen shows the following elements (from top to bot-
tom):
−Designation of the parameter that can be set (in header)
−Help text (if applicable)
−Numeric value and unit
−Function of buttons (if applicable)
After selecting a menue item for numerical entry (e.g. damping), at first the value is dis-
played only. The numeric value itself is shown in square brackets and its unit behind it or
in the lower right area. Unused leading digits are marked with bottom lines. You need to
press OK again to enter the edit mode.
Numeric values are entered digit by digit. First, always the leftmost digit is selected (visible
with a triangle above and below the number). By pressing OK, you go to the next digit.

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numeric value
and unit
parameter
designation
Figure 6: Elements when setting a numeric value
You change the selected digit by pressing the or button. The higher value digit is
also increased or decreased when passing zero. For instance, you can easily go from 19
to 20 without having to edit two digits.
Lower value digits are not influenced, unless the parameter limit is reached. The value is
then set to the parameter limit.
You can set negative numbers by decreasing the value below zero.
When you press the ESC button, you can cancel the entry at any time and return to the
display of the set value. Any change of the value is not saved.
With the OK button you confirm the set digit value and jump to the next digit.
When you confirm the rightmost digit, the entire value is saved. You can save the new val-
ue from any digit by pressing and holding the OK button.
OK
OK
OK
3x
Figure 7: Procedure for setting a numeric value (e.g. from 1.0 to 0.9)

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6.4 The Menue Tree
In the following, the display and adjustment options are described by their position in the
menue tree. An overview of the menue tree can be found on the last page of this docu-
ment.
6.4.1 Main menue
The main menue has the following entries:
Menue entry Description
Quick setup Selection of the most important settings
Adjustment Adjustment functions for pressure measurement and current out-
put
Display Functions for configuring the display
Measurem./Output Configuration of the pressure measurement and current output
Diagnosis Diagnostic information such as min/max values
Simulation Simulation of pressure and current for function check of the
measurement chain
Communication Information and settings regarding HART communication
System Device data and function such as factory reset
Table 6: The main menue
6.4.2 Menue "Quick Setup"
In Quick Setup, basic configuration options are combined to make it possible to quickly
configure key functions. All functions of the quick setup can also be found at another posi-
tion in the menue tree.
The following functions are available in the Quick Setup menue:
Menue entry Description
Language Select menue language
Pressure unit Select unit for measured pressure (see 6.4.4.1)
Lower range val. Setting of the pressure value that should correspond to 4 mA
(start of range) (see 6.4.5.3)
Upper range val. Setting of the pressure value that should correspond to 20 mA
(end of range) (see 6.4.5.3)
Damping Setting the damping of the output signal (see 6.4.5.1)
Device ID Setting the device ID (see 6.4.9.1)
Table 7: "Quick-Setup" menue

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6.4.3 Menue "Adjustment"
The following functions are available for the pressure adjustment:
Menue entry Description
Zero point Set device at ambient pressure to zero (0 bar rel)
(not with absolute pressure devices)
Position correct. Correct zero point error due to installation position
(not with absolute pressure devices)
Lower adjust. Offset correction with applied reference pressure
Upper adjust. Span correction with applied reference pressure
Table 8: "Pressure Adjustment" menue
Additionally, you can perform a current adjustment (see 6.4.3.4).
6.4.3.1 Zero-point correction
The zero-point correction requires a non-pressurized pressure port e.g. during calibration
in the lab. When executing this function the applied pressure will be interpreted as zero bar
relative pressure.
The zero point correction results in an offset of the whole characteristic curve. Therefore it
is a special case of the lower adjustment (see below).
6.4.3.2 Position correction
Using the function "Position correction", you can correct the offset error due to the installa-
tion position independent of the zero-point offset.
In the corresponding submenue, you will find the following entries:
Menue entry Description
Pos.corr. on/off Activate/deactivate position correction
Pos.corr. adjust. Correct position error at ambient pressure
Table 9: "Position Correction" submenue
When you set the position correction, it will be activated automatically. You can deactivate
the position correction, for instance for a subsequent calibration to check the zero point
independently from the installation position.
6.4.3.3 Upper and lower adjustment
The lower adjustment results in an offset of the characteristic curve. It thus affects zero
and span of the measuring range.
The upper adjustment changes the slope of the characteristic curve by correcting the span
of the measuring range.
Execute the lower adjustment prior to the upper adjustment for a correct full adjustment.

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true
pressure
measured
pressure 1) misaligned
characteristic curve
2) characteristic curve
after lower calibration
(offset shift)
3) characteristic curve
after upper calibration
(span correction)
LRV URV
LRV
URV
Figure 8: Effect of the upper and lower adjustment on the characteristic curve
You can perform the upper and lower adjustment at any reference pressure level. For in-
stance, you can perform the lower adjustment of a -1…4 bar rel device at -900 mbar rel.
The reference pressure level for the upper offset can also be freely chosen. To ensure that
the adjustment is as precise as possible, the upper and lower adjustment should be per-
formed as close as possible to the lower range value and upper range value of the meas-
urement ranges.
6.4.3.4 Current adjustment
You can use the current adjustment, if the reading at the end of the measurement chain
(re-converted current value) does not correspond to the measured pressure. With this
function you can compensate deviations in the output stage as well as the downstream
measurement chain.
Proceed as follows (example for 4 mA):
−Select function "Current adjust." –> "Adjust. 4 mA"
−Use "OK" to activate constant current mode (4 mA). CAUTION! The output current
value now no longer corresponds with the measured pressure! This is indicated by
the icon "Function check" (see 6.2.3).
−Read the displayed current value at the end of the measurement chain.
−Enter this current value (e.g. 3.996) at the device. The device now corrects the cur-
rent output so that 4 mA are shown at the end of the measurement chain.
When leaving the function, the constant current mode is disabled and the current value
corresponds again to the measured pressure.

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6.4.4 Menue "Display"
In the "Display" menue, you find all the settings that affect the display on the screen.
Menue entry Description
Language Select menue language
Units Setting units for the different measured and displayed values
Screen mode Configuration of the screen layout and content (see 6.2.4)
Decimal point Select setting of decimal point to determine number of decimal places
Backlight Switch backlight on/off
Table 10: "Display" menue
6.4.4.1 Submenue "Units"
You can select the unit of every value shown on the display. These settings do not affect
the internal calculations of the device or HART communication.
The shown conversions are only meant for your orientation. The device uses conversion
values with ten decimal places.

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Pressure unit
The unit in which the measured pressure is to be shown can be selected from the following
list:
Unit Description
mbar Millibar (1 mbar = 0,001 bar)
bar Bar (1 bar = 1000 mbar = 10
5
Pa)
Pa Pascal (1 Pa = 1 kg/(m*s
2
) = 10
-5
bar = 0,01 mbar)
hPa Hectopascal (1 hPa = 100 Pa = 1 mbar)
kPa Kilopascal (1 kPa = 1.000 Pa = 10 mbar)
MPa Megapascal (1 MPa = 1.000.000 Pa = 10 bar)
g/cm
2
Gramme per square centimetre (1 g/cm
2
= 0,981 mbar)
kg/cm
2
Kilogramme per square centimetre (1 kg/cm
2
= 0,981 bar)
psi Pound force per square inch (1 psi = 68,9 mbar)
atm Atmospheric pressure (1 atm = 1013 mbar)
mmH
2
O Millimetre water column (1 mmH
2
O = 0,0981 mbar)
mH
2
O Metre water column (1 mH
2
O = 98,1 mbar)
inH
2
O Inch water column (1 inH
2
O = 2,49 mbar)
ftH
2
O Foot water column (1 ftH
2
O = 29,84 mbar)
Torr Torr (1 Torr = 1 mmHg = 1,33 mbar)
mmHg Millimetre mercury column (1 mmHg = 1,33 mbar)
inHg Inch mercury column (1 inHg = 33,86 mbar)
Table 11: Possible units for pressure
Temperature unit
The unit in which the temperature is to be shown can be selected from the following list:
Unit Description
°C Degree Celsius
°F Degree Fahrenheit ( T
Fahrenheit
= T
Celsius
*1,8 + 32 )
°R Degree Rankine ( T
Rankine
= T
Kelvin
*1,8 )
K Kelvin ( T
Kelvin
= T
Celsius
+ 273,15 )
Table 12: Possible units for temperature

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6.4.4.2 Submenue "Display mode"
In the "Display mode" submenue, you configure the representation of the measured values
and additional information on the display.
With the menue item “Screen layout” you configure the information that is displayed and its
layout. Up to four values can be displayed at the same time. In the additional menue en-
tries "1st value" to "4th value" you define the contents of the placeholders in the layout.
The various layouts as well as the possible content of the values are described in Chapter
6.2.4.
6.4.5 Menue "Measurement/Output"
Configure the measured value as well as the current output in the "Measurement/output"
menue.
Menue entry Description
Damping Setting the damping of the output signal
Output function Setting the output function (linear, inverse)
Lower range val. Setting the pressure value that shall correspond to 4 mA (start of
range)
Upper range val. Setting the pressure value that shall correspond to 20 mA (end of
range)
Alarm current Select the alarm current: High (>21 mA) or low (<3.6 mA)
Minimum current Limit of the lower output current (3.8…4.0 mA)
Maximum current Limit of the upper output current (20…21 mA)
Table 13: "Measurement/Output" menue
Independent from the setting of the minimum and maximum current limit, the set measur-
ing range always corresponds to a current range of 4…20 mA.
6.4.5.1 Setting the damping
Using an adjustable damping you can eliminate fast pressure changes or peaks from hav-
ing direct influence to the output signal. The set value in seconds corresponds to the time
constant of an exponential rise. After a sudden pressure change, it takes the damping time
to reach 63.2% of the actual pressure at the output. After the damping time has elapsed
three times, 95% of the pressure is reached.

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10 2 3 4 5
63,2%
95,0%
100,0%
0,0%
τ
actual pressure
pressure value
at current output
due to damping
Figure 9: Damping effect
The damping affects the current output as well as the displayed pressure value.
6.4.5.2 Output function
You can set the output function proportionally rising to the measured value (selection "Lin-
ear") or proportionally falling (selection "Inverse").
6.4.5.3 Setting the measurement range
You can freely set the lower and upper range value within the nominal range of the device.
Please note that when the turndown is increased, the measurement error also increases. If
you use a very small range you must therefore accept a significant measurement error.
We recommended a maximum turndown of 10:1.
The lower range value must be below the upper range value. For an inverse characteristic
curve, select the output function setting “inverse”.
6.4.5.4 Minimum and maximum current
In the standard setting, the current output is limited at 3.8 and 20.5 mA, meaning a further
drop or rise in the measured variable does not change the current. You can freely select
these current limits for the lower limit between 3.8 and 4 mA and for the upper limit be-
tween 20 and 21 mA.

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6.4.6 Menue "Diagnosis"
In this menue you can view and configure various diagnostic information. The following
diagnostic functions are available:
Menue entry Description
Operating hours Display of operating hour counter
Min/Max values Displaying and resetting the min/max values
Last error Display and reset of the last critical error
Table 14: "Diagnosis" menue
6.4.6.1 Min/Max values
The min/max values save the maximum and minimum values until they are reset by the
user. The menue item that shows the min/max value, can also be used to reset it. Some of
the min/max values are also directly accessible from the measured value display in the
device data (see 6.2.1).
OK
Figure 10: Display and resetting of the Min/Max values
6.4.7 Menue "Simulation"
In the "Simulation" menue, you can simulate the pressure as well as the current to test the
subsequent measuring chain.
Menue entry Description
Current sim. Setting a fixed current value
Pressure sim. Setting a fixed pressure value
Table 15: "Simulation" menue
The current simulation influences only the current output. The pressure simulation takes all
settings into consideration, including the damping.