• Installation, electrical connection, set-up, operation and maintenance of the unit must be carried out by qualified personnel authorised by the machine operator� • 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 Measuring range...
• 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� For the scope of validity cULus: The sensor shall be connected only by using any R/C (CYJV2) cord, having suitable ratings�...
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). •...
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�...
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�...
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�...
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 2: OUT2...
7 Operating and display elements Mode/ Enter 1: Analogue display - Display of the current system pressure in bar and PSI or mbar and inH2O� 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�...
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�...
8.2 Explanation of the main menu SP1/rP1 Upper / lower limit value for system pressure at which OUT1 switches� 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]� Output function for OUT2: •...
8.4 Explanation of the menu level 2 Standard unit of measurement for system pressure (bar or PSI)� Display mode: SELd • Pressure in the unit set in [Uni]� • Pressure in % of the set scaling of the analogue output� Analogue start point for system pressure: measured value at which 4 mA is provided (20 mA if [OU2] = [InEG])�...
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�...
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► Touch [Set] and keep it touched until Enter the valid code no� appears� ► Touch [Mode/Enter] briefly� On delivery by ifm electronic: no access restriction� • Locking / unlocking The unit can be locked electronically to prevent an unintentional operation�...
9.2 Configuration of the digital display (optional) ► Select [Uni] and set the unit of measurement: - [bAr] / [mbAr]� - [PSI] / [inHO]� The unit of measurement available for selection depends on the device� See table Setting ranges (→ 10.3)� ►...
► 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)�...
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� >...
As an alternative: automatic adjustment of the offset in the range 0 bar ± 5 %� ► Make sure that no pressure is applied to the system� ► Touch [Mode/Enter] until [tCOF] appears� ► Touch [Set] and keep it touched� >...
► Set a defined reference pressure between ASP and AEP in the system� ► Select [CAL]� ► Touch [Set] briefly� > [CP1] is displayed� ► Touch [Set] for 5 s� > The pressure measured by the unit is displayed� ► Touch [Set] until the set reference pressure is indicated (measured pressure = reference pressure) or the corresponding analogue signal is provided to OUT2�...
9.5.2 Reset all parameters to factory setting ► Select [rES]� ► Touch [Set] and keep it touched until [----] is displayed� ► Touch [Mode/Enter] briefly� It is recommended to take down your own settings in the table before carrying out a reset (→ 11 Factory setting)� 10 Operation After power on, the unit is in the Run mode (= normal operating mode)�...
11 Factory setting Factory setting User setting 25.0 % VMR* 24.9 % VMR* COF / tCOF ASP / tASP 0 % VMR* AEP / tAEP 100 % VMR* bAr / mbAr SELd 0.06 0.03 SPRP 0.00 0.00 * = the indicated percentage of the final value of the measuring range (VMR) of the corresponding sensor is set (for PG2409 the percentage of the measuring span)�...
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