Contents 1 Preliminary note ���������������������������������������������������������������������������������������������������4 1�1 Symbols used ������������������������������������������������������������������������������������������������4 2 Safety instructions �����������������������������������������������������������������������������������������������4 3 Functions and features ����������������������������������������������������������������������������������������5 3�1 Applications ���������������������������������������������������������������������������������������������������5 4 Function ���������������������������������������������������������������������������������������������������������������5 4�1 Operating modes �������������������������������������������������������������������������������������������6 4�1�1 2-wire operation ������������������������������������������������������������������������������������6 4�1�2 3-wire operation ������������������������������������������������������������������������������������6 4�2 Switching function (only for 3-wire operation) ������������������������������������������������6 4�3 Analogue function ������������������������������������������������������������������������������������������7 4�4 Customer-specific calibration ������������������������������������������������������������������������9 5 Installation����������������������������������������������������������������������������������������������������������10...
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9�4�2 Setting of the error behaviour of the outputs ��������������������������������������24 9�4�3 Set delay for the switching outputs �����������������������������������������������������25 9�4�4 Set switching logic for the switching outputs ��������������������������������������25 9�4�5 Set damping for the switching signal ��������������������������������������������������25 9�4�6 Set damping for the analogue signal ��������������������������������������������������25 9�4�7 Calibrate curve of measured values ���������������������������������������������������25 9�5 Service functions �����������������������������������������������������������������������������������������26 9�5�1 Read min/max values for system pressure ����������������������������������������26...
1 Preliminary note 1.1 Symbols used ► Instructions > Reaction, result […] Designation of pushbuttons, buttons or indications → Cross-reference Important note Non-compliance can result in malfunction or interference� Information Supplementary note� 2 Safety instructions • Please read this document prior to set-up of the unit� Ensure that the product is suitable for your application without any restrictions�...
- Using the FDT service program ifm Container, the current parameter settings can be stored and transferred to other units of the same type� The program library of the available DTM objects can be found at www�ifm�com → Service → Download. Device-specific parameter lists for IO-Link parameter setting are available at: www�ifm�com...
P = system pressure; HY = hysteresis; FE = window 4.3 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�...
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Minimum distance between [ASP] and [AEP] = 25 % of the final value of the measuring range (turn-down 1:4); for PI2799: 25 % of the measuring span� Factory setting Measuring range scaled I [mA] I [mA] P = system pressure , MAW = initial value of the measuring range, MEW = final value of the measuring range : [OU2] = [I];...
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� • The two calibration points must be within the scaled measuring range (→ 4.3 Pressure monitoring / analogue function)� • 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�...
• P = measured pressure; P‘ = modified measured value • CP1 = calibration point 1; CP1‘ = modified measured value for CP2' • CP2 = calibration point 2; CP2‘ = modified measured value for CP1' • 1 = curve of measured values at factory setting • 2 = curve of measured values after calibration...
1 Installation using an adapter with sealing ring (order no. E332xx / E333xx) The adapters are supplied with EPDM O-ring (order no� E30054)� More sealing rings are available as accessories: FKM O-ring (order no� E30123); PEEK sealing ring (order no� E30124)� Concerning installation → Installation instructions attached to the adapter.
6.2 Connection for IO-Link parameter setting Pin 1 Pin 2 Output function according to the OU2 setting Pin 3 Ub- for programming mode Pin 4 (P) Communication via IO-Link 6.3 Connection for 3-wire operation 2 x positive switching 2 x negative switching Out 2 Out 2 Out 1...
7 Operating and display elements 1 2 3 4 5 6 7 8 Mode/Enter Set 1 to 8: Indicator LEDs - LED 1 to LED 5 = system pressure in the specified unit of measurement� - LED 6 = System pressure in % of the set scaling of the analogue output if [OU2] is configured as analogue output�...
8 Menu 8.1 Menu structure: main menu 1: Change to menu level 2 (extended functions) Menu items highlighted grey ( SP1 ) are not active in 2-wire operation�...
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]� Output function for OUT2: • Switching signal for the pressure limit values: hysteresis function [H ��] or window function [F ��], either normally open [�...
8.3 Menu structure: level 2 (extended functions) 1: Change to the main menu; 2: Change to menu level 3 (simulation) Menu items highlighted grey ( ASP ) are not active in 2-wire operation�...
8.4 Explanation of the menu level 2 Standard unit of measurement for system pressure� 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])�...
8.5 Menu structure: level 3 (simulation) For setting SEL = OU 1...60 min For setting SEL = Proc 1...60 min 2: Change to menu level 2 (extended functions) Menu items highlighted grey ( S�OU1 ) are not active in 2-wire operation�...
8.6 Explanation of the menu level 3 For setting SEL = OU Status to be simulated: • Output functions [OU]� S�OU1* Simulation values for OUT1; only active for 3-wire operation and if [SEL] = [OU]� • Output inactive [OPEN] or output active [CLOS]� S�OU2 Simulation values for OUT2;...
Mode/Enter Set ► Press [Set] and keep it pressed until the valid code no� is displayed� ► Press [Mode/Enter] briefly� On delivery by ifm electronic: no access restriction� Set parameter value ► Press [Set] and keep it pressed� > Current setting value of the Mode/Enter Set parameter flashes for 5 s�...
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This locking can only be removed via a parameter setting software� • When parameter setting with the user interface of the ifm Container program, the values can be directly entered in the specified fields�...
- [bAr], [mbAr]� - [MPA], [kPA]� - [PSI] (only PI2793, PI2794, PI2795, PI2796, PI2797, PI2799)� - [InHO] (only PI2789, PI2796, PI2797, PI2798, PI2799)� - [mWS] (only PI2796, PI2797, PI2799)� - [mmWS] (only PI2789 and PI2798)� ► Select [SELd] and set type of indication: - [P]: system pressure in the unit set in Uni�...
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)�...
9.4.3 Set delay for the switching outputs [dS1] / [dS2] = switch-on delay for OUT1 / OUT2� [dr1] / [dr2] = switch-off delay for OUT1 / OUT2� ► Select [dS1], [dS2], [dr1] or [dr2] and set a value between 0�1 and 50 s (at 0�0 the delay time is not active)�...
a) Finish calibration: ► Press [Mode/Enter] briefly� > [CAL] is displayed� b) Change a 2nd point on the curve of measured values ► Set a second defined reference pressure in the system� Minimum distance between the calibration points CP1 and CP2 = 5 % of the final value of the measuring range�...
9.6.2 Set simulation value Output states If [SEL] is active: ► Press [Set] and keep it pressed until [OU] is displayed� ► Press [Mode/Enter] briefly� > [S�OU1] is displayed (in 2-wire operation [S�OU2] is displayed)� ► Press [Set] to set the requested value: - [OPEN] = output 1 not active / open�...
10 Operation After power on, the unit is in the Run mode (= normal operating mode)� It carries out its measurement and evaluation functions and provides output signals according to the set parameters� Operating indicators → Chapter 7 Operating and display elements. 10.1 Read set parameters ► Press [Mode/Enter] until the requested parameter is displayed� ►...
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-/-* 0x5111 Supply voltage ► Check / correct the supply voltage� too low� ► In 2-wire operation: Check / correct the connected load� 0x8CB3 yes Excessive ► Check switching output 1 for short- current circuit or excessive current; remove switching the fault�...
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W532 0x8CA5 yes Load at ► Reduce load at output 2 or increase analogue the supply voltage� output too high�*** W203 0x1822 Error during the The unit uses a higher temperature temperature coefficient (i�e� with reduced accuracy)� compensation ► Replace the unit� of the pressure measurement�...
11 Scale drawing Dimensions in mm 1: Display 2: LEDs 3: Programming button 12 Technical data 2-wire operation 3-wire operation Operating voltage [V] 20���32 DC 18���32 DC Current consumption [mA] 3�6���21 < 45 Current rating [mA] Analogue output 4���20 mA / 20���4 mA Max. load [Ω] (Ub - 10) x 50 Step response time analogue output [ms]...
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IO-Link Device Transfer type �����������������������������������������������������������������������������������������COM2 (38�4 kBaud) Accuracy / deviations (in % of the span) PI279x PI2789 Switch point accuracy [%] < ± 0�2 < ± 0�5 Characteristics deviation (linearity, incl� hysteresis and < ± 0�2 < ± 0�5 repeatability) Linearity <...
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