IFM PG243 User manual

UKUK
Operating instructions
Electronic manometer
PG243
PG244
11386049 / 00 08 / 2020

2
Contents
1 Preliminary note���������������������������������������������������������������������������������������������������3
1�1 Symbols used ������������������������������������������������������������������������������������������������3
2 Safety instructions �����������������������������������������������������������������������������������������������4
3 Functions and features ����������������������������������������������������������������������������������������4
3�1 Applications ���������������������������������������������������������������������������������������������������4
4 Function���������������������������������������������������������������������������������������������������������������5
4�1 Processing of the measured signals��������������������������������������������������������������5
4�2 Pressure monitoring / switching function �������������������������������������������������������6
4�3 Pressure monitoring / analogue function �������������������������������������������������������7
4�4 Customer-specific calibration ������������������������������������������������������������������������8
5 Installation������������������������������������������������������������������������������������������������������������9
6 Electrical connection������������������������������������������������������������������������������������������10
7 Operating and display elements ������������������������������������������������������������������������ 11
8 Menu������������������������������������������������������������������������������������������������������������������12
8�1 Menu structure: main menu�������������������������������������������������������������������������12
8�2 Explanation of the main menu ���������������������������������������������������������������������13
8�3 Menu structure: level 2 (extended functions)�����������������������������������������������14
8�4 Explanation of the menu level 2 ������������������������������������������������������������������15
9 Parameter setting ����������������������������������������������������������������������������������������������16
9�1 General parameter setting���������������������������������������������������������������������������16
9�2 Configuration of the digital display (optional)�����������������������������������������������18
9�3 Set output signals ����������������������������������������������������������������������������������������19
9�3�1 Set output functions����������������������������������������������������������������������������19
9�3�2 Set switching limits ����������������������������������������������������������������������������19
9�3�3 Scale analogue value for OUT2 ���������������������������������������������������������19
9�4 User settings (optional)��������������������������������������������������������������������������������20
9�4�1 Carry out zero point calibration ����������������������������������������������������������20
9�4�2 Set delay time for OUT1 ���������������������������������������������������������������������20
9�4�3 Set switching logic for OUT1 ��������������������������������������������������������������20
9�4�4 Set damping for the switching signal ��������������������������������������������������20
9�4�5 Set damping for the analogue signal ��������������������������������������������������21
9�4�6 Calibrate curve of measured values ���������������������������������������������������21

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1 Preliminary note
1.1 Symbols used
►Instruction
> Reaction, result
[…] Designation of keys, buttons or indications
→Cross-reference
Important note
Non-compliance may result in malfunction or interference
Information
Supplementary note
9�5 Service functions �����������������������������������������������������������������������������������������22
9�5�1 Read min/max values for system pressure ����������������������������������������22
9�5�2 Reset all parameters to factory setting �����������������������������������������������22
10 Operation���������������������������������������������������������������������������������������������������������22
10�1 Read set parameters ���������������������������������������������������������������������������������22
10�2 Error indications�����������������������������������������������������������������������������������������22
10�3 Further technical data��������������������������������������������������������������������������������23
11 Factory setting �������������������������������������������������������������������������������������������������23

4
2 Safety instructions
• The device described is a subcomponent for integration into a system�
- The manufacturer is responsible for the safety of the system�
- The system manufacturer undertakes to perform a risk assessment and to
create a documentation in accordance with legal and normative requirements
to be provided to the operator and user of the system� This documentation
must contain all necessary information and safety instructions for the operator,
the user and, if applicable, for any service personnel authorised by the
manufacturer of the system�
• Read this document before setting up the product and keep it during the entire
service life�
• The product must be suitable for the corresponding applications and
environmental conditions without any restrictions�
• Only use the product for its intended purpose (→ Functions and features).
• Only use the product for permissible media (→ Technical data).
• If the operating instructions or the technical data are not adhered to, personal
injury and/or damage to property may occur�
• The manufacturer assumes no liability or warranty for any consequences
caused by tampering with the product or incorrect use by the operator�
• Installation, electrical connection, set-up, programming, configuration, operation
and maintenance of the product must be carried out by personnel qualified and
authorised for the respective activity�
• Protect units and cables against damage�
3 Functions and features
The unit monitors the system pressure in a plant�
3.1 Applications
Type of pressure: relative pressure
Information on pressure rating and bursting pressure → data sheet.
The units comply with the Pressure Equipment Directive� They are
designed for group 2 fluids and manufactured in accordance with sound
engineering practice� Use of group 1 fluids on request�

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UK
Avoid static and dynamic overpressure exceeding the given overload
pressure by taking appropriate measures�
The indicated bursting pressure must not be exceeded�
Even if the bursting pressure is exceeded only for a short time, the unit
may be destroyed� ATTENTION: risk of injury!
Use in gases at pressures > 25 bar (2,5 MPa) only after contacting the
manufacturer ifm�
High-pressure units 250 bar, 400 bar (25 MPa, 40 MPa) are supplied with an
integrated damping device to avoid any risk of injury in case of bursting, when the
bursting pressure is exceeded, and to comply with the regulations for UL approval�
• When the damping device is removed, it can become unusable�
• When the damping device is removed, the unit can no longer be used under
UL conditions�
If you have any questions, please contact ifm electronic’s sales specialists�
4 Function
4.1 Processing of the measured signals
• The unit generates 2 output signals according to the parameter settings�
OUT1 • Switching signal for system pressure limit value�
OUT2 • Analogue signal (4���20 mA, 20���4 mA)�
• The unit displays the current system pressure�
Analogue display: circular scale with pointer�
Digital display (alphanumeric display, 4 digits)�
• In addition, an LED ring with one of the following display options is available:
Display of set point and reset point�
Trend display (rising pressure / falling pressure)�
Lag indicator function for maximum value or minimum value�
Display of pulsating signals and pressure peaks�

6
4.2 Pressure monitoring / switching function
OUT1 changes its switching state if it is above or below the set switching limits
(SP1, rP1)� The following switching functions can be selected:
• Hysteresis function / normally open: [OU1] = [Hno] (→ fig. 1).
• Hysteresis function / normally closed: [OU1] = [Hnc] (→ fig. 1).
First the set point (SP1) is set, then the reset point (rP1) with the requested
difference�
• Window function / normally open: [OU1] = [Fno] (→ fig. 2).
• Window function / normally closed: [OU1] = [Fnc] (→ fig. 2).
The width of the window can be set by means of the difference between SP1
and rP1� SP1 = upper value, rP1 = lower value�
1 2
P = system pressure; HY = hysteresis; FE = window

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4.3 Pressure monitoring / analogue function
The analogue output can be configured�
• [OU2] defines whether the set measuring range is provided as 4���20 mA
([OU2] = [I]) or as 20���4 mA ([OU2] = [InEG])�
Scaling can be set by means of the teaching process or by entering a value for the
ASP and AEP parameters�
• Teaching the analogue start point [tASP] or setting the parameter [ASP] defines
at which measured value the output signal is 4 mA (20 mA at [InEG])�
• Teaching the analogue end point [tAEP] or setting the parameter [AEP] defines
at which measured value the output signal is 20 mA (4 mA at [InEG])�
Minimum distance between [ASP] and [AEP] = 25 % of the final value of the
measuring range�
Factory setting Measuring range scaled
P = system pressure , MAW = initial value of the measuring range, MEW = final value of
the measuring range
1
: [OU2] = [I];
2
: [OU2] = [InEG]
In the set measuring range the output signal is between 4 and 20 mA ([OU2] = [I])
or between 20 and 4 mA ([OU2] = [InEG])�
It is also indicated:
• System pressure above the measuring range:
- Output signal 20 to 20�5 mA at [OU2] = [I]�
- Output signal 4 to 3�8 mA at [OU2] = [InEG]�
• System pressure below the measuring range:
- Output signal 4 to 3�8 mA at [OU2] = [I]�
- Output signal 20 to 20�5 mA at [OU2] = [InEG]�

8
4.4 Customer-specific calibration
The customer-specific calibration changes the curve of measured values
compared to the real measured values (shifting / change of the gradient; (→ 9.4.6)
[CAL])�
• Two calibration points can be defined (CP1, CP2)� The two points are
independent of each other� They must be within the measuring range and not in
the extended display range�
• The zero point calibration [COF] influences the calibration of the curve of
measured values� Recommendation: set [COF] to 0 ((→ 9.4.1) [COF]), then
calibrate the curve of measured values�
After a change the calibration can be reset to factory setting ((→ 9.5.2) [rES])�
• P = measured pressure;
P‘ = modified measured value
• CP1 = calibration point 1;
CP1‘ = modified measured value for
CP1
• CP2 = calibration point 2;
CP2‘ = modified measured value for
CP2
• 1 = curve of measured values at
factory setting
• 2 = curve of measured values after
calibration

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5 Installation
Before installing and removing the unit: make sure that no pressure is
applied to the system� Note: If 0% is displayed and no pointer is visible,
this does not mean that no pressure is applied to the system!
We recommend horizontal installation for high medium temperatures�
The unit can be fixed to different process connections� Options are as follows:
1 Installation with seals to DIN EN 837-1
►Insert the unit and the seal into the process connection with cylindrical pipe thread
G½ and tighten�
All seals to DIN EN 837-1 can be used if they are suitable for process connections
with cylindrical pipe thread, e�g� flat seals or double-edge sealing rings�
2 Installation with sealing tape
►Insert the unit and the sealing tape into the process connection with G½ internal
thread (e�g� welding adapter) and tighten�
3 Installation at flange G½ (based on DIN 3852-11)
The sealing ring on the sensor is used as process seal�
The upper sealing area on the process connection must be flush with the tapped hole
and have a surface characteristic of min� Rz 6�3�
►Grease the sensor thread with a suitable paste�
►Insert the unit into the process connection�
►Tighten it using a spanner� Tightening torque: 35 Nm�
After installation the analogue display can be rotated / adapted to the
installation position (to do so wear protective gloves)�

10
6 Electrical connection
The unit must be connected by a qualified electrician�
The national and international regulations for the installation of electrical
equipment must be adhered to�
Voltage supply according to EN 50178, SELV, PELV�
►Disconnect power�
►Connect the unit as follows:
OUT1 positive switching OUT1 negative switching
Pin 1 Ub+
Pin 3 Ub-
Pin 4 (OUT1) • Binary switching output pressure monitoring
Pin 2 (OUT2) • Analogue output for system pressure
Core colours of ifm sockets:
1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black)

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7 Operating and display elements
Mode/
Enter
Set
1
2
3
4
5
6
1: Analogue display
- Display of the current system pressure in mbar and kPa, bar and kPa or bar and MPa�
(→ Depending on the measuring range)�
2: LED ring
According to the setting of parameter [LED] (→ 9.2):
- Display of set point and reset point�
- Lag indicator function for maximum value or minimum value�
- Display of pulsating signals and pressure peaks�
- Trend display: rising pressure or falling pressure�
3: Indicator LEDs
- LED 1 = system pressure of the digital display in bar/mbar�
- LED 2 = system pressure of the digital display in MPa/kPa�
- LED 3, LED 4, LED 5, LED 7 = not used�
- LED 6 = system pressure in % of the scaling (range ASP to AEP) or COF value in %�
- LED 8 = switching status OUT1 (on when output 1 is switched)�
4: Alphanumeric display, 4 digits
- Display of the current system pressure�
- Display of the parameters and parameter values�
5: Touch button Set*
- Setting of the parameter values (continuously by touching permanently; step by step by
touching briefly several times)�

12
6: Touch button Mode/Enter*
- Selection of the parameters and acknowledgement of the parameter values�
* The two touch buttons are activated simply by touching / deactivated by releasing the
touch button�
The touch button must be completely covered to be activated�
Slow covering (e�g� liquid flows over the display) does not activate the touch button�
8 Menu
8.1 Menu structure: main menu
1: Change to menu level 2 (extended functions)

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8.2 Explanation of the main menu
SP1/rP1 Upper / lower limit value for system pressure at which OUT1 switches�
OU1 Output function for OUT1:
• Switching signal for the pressure limit values: hysteresis function [H ��] or
window function [F ��], either normally open [� no] or normally closed [� nc]�
OU2 Output function for OUT2:
• Analogue signal for the current system pressure: 4���20 mA [I], 20���4 mA
[InEG]�
tCOF Teach zero-point calibration�
tASP Teach analogue start point for system pressure: set measured value at which
4 mA is provided (20 mA if [OU2] = [InEG])�
tAEP Teach analogue end point for system pressure: set measured value at which
20 mA is provided (4 mA if [OU2] = [InEG])�
EF Extended functions / opening of menu level 2�

14
8.3 Menu structure: level 2 (extended functions)
1: Change to the main menu

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8.4 Explanation of the menu level 2
Uni Standard unit of measurement for system pressure (bar or PSI)�
SELd
Display mode:
• Pressure in the unit set in [Uni]�
• Pressure in % of the set scaling of the analogue output�
ASP Analogue start point for system pressure: measured value at which 4 mA is
provided (20 mA if [OU2] = [InEG])�
AEP Analogue end point for system pressure: measured value at which 20 mA is
provided (4 mA if [OU2] = [InEG])�
HI Maximum value memory for system pressure�
LO Minimum value memory for system pressure�
COF Zero-point calibration�
dS1 Switch-on delay for OUT1�
dr1 Switch-off delay for OUT1�
P-n Switching logic for OUT1: pnp or npn�
dAP Damping for switching outputs and display�
dAA Damping for analogue output (OUT2)�
diS Update rate and orientation of the display�
LED Setting for the LED ring�
CAL Calibration function (setting the curve of measured values)�
CP1 Calibration point 1
CP2 Calibration point 2
rES Restore factory settings�

16
9 Parameter setting
During parameter setting the unit remains in the operating mode� It continues its
monitoring function with the existing parameters until the parameter setting has
been completed�
Exceptions: changes to the parameters COF (→ 9.4.1), CP1 and CP2 (→ 9.4.6) take effect
immediately�
9.1 General parameter setting
3 steps must be taken for each parameter setting:
1Select parameter
►Touch [Mode/Enter] until the
requested parameter is displayed.
Mode/
Enter
Set
2Set parameter value
►Touch [Set] and keep it touched�
> Current setting value of the
parameter flashes for 5 s�
> After 5 s: setting value is changed:
step by step by touching briefly
several times or continuously by
touching permanently�
Mode/
Enter
Set
Numerical values are incremented continuously� To reduce the value: let the display
move to the maximum setting value� Then the cycle starts again at the minimum
setting value�
3Acknowledge parameter value
►Touch [Mode/Enter] briefly�
> The parameter is displayed again�
The new setting value is saved�
Mode/
Enter
Set
Set other parameters
►Start again with step 1�
Finish parameter setting
►Touch [Mode/Enter] several times until the current measured value is displayed or wait
for 15
s�
> The unit returns to the operating mode�
• Timeout:
If no touch button is activated for 15 s during parameter setting, the unit returns to the
operating mode with unchanged values�

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UK
• Change from menu level 1 to menu level 2:
►Touch [Mode/Enter] until [EF] is
displayed�
Mode/
Enter
Set
►Touch [Set] briefly�
> The first parameter of the submenu is
displayed (here: [Uni])�
If the menu level 2 is protected by an
access code, "Cod1" flashes in the
display�
►Touch [Set] and keep it touched until
the valid code no� appears�
►Touch [Mode/Enter] briefly�
On delivery by ifm electronic: no access
restriction�
Mode/
Enter
Set
• Locking / unlocking
The unit can be locked electronically to prevent an unintentional operation�
►Make sure that the unit is in the normal operating mode�
►Touch [Set],
►additionally touch [Mode/Enter] and keep both buttons touched for 10 s�
> The LED for the current unit of measurement flashes, the current system pressure
continues to be displayed� After 10 s the display goes out for approx� 1 s�
►Release [Mode/Enter] and [Set] again� Both buttons must be released within 4 s�
If this does not happen, the unit remains unlocked�
> [Loc] is displayed, the unit is locked�
During operation the indicator LED for the display unit (→ 7 Operating and display
elements) is flashing if you try to open the menu�
For unlocking:
►Make sure that the unit is in the normal operating mode�
►Touch [Set],
►additionally touch [Mode/Enter] and keep both buttons touched for 10 s�
> The LED for the current unit of measurement flashes, the current system pressure
continues to be displayed� After 10 s the display goes out for approx� 1 s�
►Release [Mode/Enter] and [Set] again� Both buttons must be released within 4 s�
If this does not happen, the unit remains unlocked�
> [uLoc] is displayed, the unit is unlocked�
On delivery: unlocked�

18
9.2 Configuration of the digital display (optional)
►Select [Uni] and set the unit of measurement:
- [bAr], [mbAr], [MPa], [kPa]�
The available unit of measurement depends on the measuring
range�
►Select [SELd] and set type of indication:
- [P]: system pressure in the unit set in Uni�
- [P%]: system pressure in % of the set scaling of the analogue output;
the following applies: 0 % = ASP value / 100 % = AEP value�
Note: display “0 %” does not mean that no pressure is applied to the
system�
►Select [diS] and set the update rate of the display:
- [d1]: update of the measured values every 50 ms�
- [d2]: update of the measured values every 200 ms�
- [d3]: update of the measured values every 600 ms�
- [OFF] = The measured value display is deactivated in the Run
mode� Touching one of the buttons indicates the current measured
value for 15 s� Touching the [Mode/Enter] button again activates the
display mode� The indicator LEDs remain active even if the display is
deactivated�
►Select [LED] and set the display function for the digital display and LED
ring:
- [SPRP]: One LED on the LED ring indicates the set point and a second
LED the reset point�
- [HInd]: 2 adjacent LEDs on the LED ring mark the lag indicator for
maximum value ([HInd], high indication)�
- [LInd]: 2 adjacent LEDs on the LED ring mark the lag indicator for
minimum value ([LInd], low indication)�
To reset:
►Touch [Set] for 1 second�
> The two LEDs jump to the current position of the pointer�
- [Ph]: Display of pulsating signals and pressure peaks:
- In case of quick pressure changes (quickly pulsating signals) the
digital display and LED ring indicate the minimum value and the
maximum value�
- In case of one-time short pressure peaks the digital display and LED
ring show the indication for a longer time�
- [Pdir]: The LED ring indicates the trend of the pressure changes (5
LEDs below the pointer for rising pressure; 5 LEDs above the pointer
for falling pressure)�
A damping set with dAP or dAA also has an effect on this display�

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9.3 Set output signals
9.3.1 Set output functions
►Select [OU1] and set the switching function:
- [Hno] = hysteresis function/NO�
- [Hnc] = hysteresis function/NC�
- [Fno] = window function/NO�
- [Fnc] = window function/NC�
►Select [OU2 ] and set the analogue function:
- [I] = current signal proportional to pressure 4…20 mA�
- [InEG] = current signal proportional to pressure 20…4 mA�
9.3.2 Set switching limits
►Select [SP1] and set the value at which the output switches�
►Select [rP1] and set the value at which OUT1 switches off�
rP1 is always smaller than SP1� The unit only accepts values which are
lower than SP1�
9.3.3 Scale analogue value for OUT2
►Set the minimum pressure requested in the system�
►Touch [Mode/Enter] until [tASP] appears�
►Touch [Set] and keep it touched�
> Current setting value flashes�
►Release [Set] when the display stops flashing�
> New setting value is displayed�
►Touch [Mode/Enter] briefly�
> The current system pressure is defined as start value for the analogue
signal�
►Set the maximum pressure requested in the system�
►Touch [Mode/Enter] until [tAEP] appears�
►Touch [Set] and keep it touched�
> Current setting value flashes�
►Release [Set] when the display stops flashing�
> New setting value is displayed�
►Touch [Mode/Enter] briefly�
> The current system pressure is defined as end value for the analogue
signal�
ASP / AEP can only be set automatically within defined limits (→ 10.3 Further technical
data)� If automatic setting is carried out at an invalid pressure value, [UL] or [OL] is
displayed� After acknowledgement by [Mode/Enter] [Err] flashes, the ASP value / AEP
value is not changed�

20
As an alternative:
►Select [ASP] and set the measured value at which 4 mA is provided
(20 mA at [OU2] = [InEG])�
►Select [AEP] and set the measured value at which 20 mA is provided
(4 mA at [OU2] = [InEG])�
Minimum distance between ASP and AEP = 25 % of the final value of the
measuring range (turn-down 1:4)�
9.4 User settings (optional)
9.4.1 Carry out zero point calibration
►Select [COF] and set a value between -5 % and 5 % of the final value of
the measuring range� The internal measured value "0" is shifted by this
value�
As an alternative:
automatic adjustment of the offset in the range 0 bar (0 Pa) ± 5 %�
►Make sure that no pressure is applied to the system�
►Touch [Mode/Enter] until [tCOF] appears�
►Touch [Set] and keep it touched�
> The current offset value (in %) flashes briefly�
> The current system pressure is displayed�
►Release [Set]�
►Touch [Mode/Enter] briefly (= to confirm the new offset value)�
9.4.2 Set delay time for OUT1
[dS1] = switch-on delay / [dr1] = switch-off delay�
►Select [dS1] or [dr1] and set a value between 0�1 and 50 s (at 0�0 the
delay time is not active)�
9.4.3 Set switching logic for OUT1
►Select [P-n] and set [PnP] or [nPn]�
9.4.4 Set damping for the switching signal
►Select [dAP] and set a value between 0�01 and 30 s�
dAP value = response time between pressure change and change of the
switching status in seconds�
[dAP] influences the switching frequency: fmax = 1 ÷ 2dAP�
[dAP] also has an effect on the display�
This manual suits for next models
1
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