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IFM PI27 Series Operating Instructions Manual
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IFM PI27 Series Operating Instructions Manual

IFM PI27 Series Operating Instructions Manual

Electronic pressure sensor
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Operating instructions
UK
Electronic pressure sensor
PI27xx

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Summary of Contents for IFM PI27 Series

  • Page 1 Operating instructions Electronic pressure sensor PI27xx...
  • Page 2 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 .......................6 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) ..........7 4.3 Analogue function ..................7 4.4 Customer-specific calibration ................8 5 Installation......................10...
  • Page 3 9.3 Set output signals ..................26 9.3.1 Set output functions ................26 9.3.2 Set switching limits ................27 9.3.3 Scale analogue value for OUT2 ............27 9.4 User settings (optional) ................28 9.4.1 Carry out zero point calibration ............28 9.4.2 Set output status in fault condition ............28 9.4.3 Set delay time for the switching outputs ..........29 9.4.4 Set output logic for the switching outputs ...........29 9.4.5 Set damping for the switching signal ..........29...
  • Page 4 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. 2 Safety instructions • The device described is a subcomponent for integration into a system. - The manufacturer is responsible for the safety of the system.
  • Page 5 3 Functions and features The unit measures and monitors the system pressure in a plant. 3.1 Applications Type of pressure: relative pressure Permissible Order no. Measuring range Bursting pressure overload pressure PI2793 -1...25 -14.4...362.7 1450 5075 PI2714 -1...16 -14.6...232 1085 3625 PI2794 -1...10...
  • Page 6 - 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. Device-specific parameter lists for IO-Link parameter setting are available at: www.ifm.com...
  • Page 7 4.2 Switching function (only for 3-wire operation) OUTx changes its switching status if it is above or below the set switching limits (SPx, rPx). The following switching functions can be selected: • Hysteresis function / normally open: [OUx] = [Hno] (→ Fig. 1). •...
  • Page 8 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]; : [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]).
  • Page 9 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 • CP2 = calibration point 2; CP1' •...
  • Page 10 ► Insert the unit with process adapter into the process connection and tighten using a spanner. Information about available adapters at www.ifm.com. ► Observe the instructions of the adapter. ► Use a lubricating paste which is suitable and approved for the application.
  • Page 11 Installation using a welding adapter with sealing ring (hygiene- compliant) ► To meet the hygiene regulations use a process adapter with leakage port. ► Make sure that the process adapter does not warp during welding. Use welding mandrel E30452. ► The sealing edge must not be damaged by subsequent surface treatment (→...
  • Page 12 5.2 Use in hygienic areas to 3-A The following applies to units with 3-A certification: ► Only use adapters with 3-A certification for the process connection. ► Do not install the unit at the lowest point of the pipe or tank (→...
  • Page 13 ► To avoid dead space adhere to the dimensions: L < (D). 1: Leakage port 5.4 Ventilation diaphragm 5.4.1 Function ventilation diaphragm The ventilation diaphragm enables the relative pressure measurement since barometric and temperature-dependent pressure fluctuations between the measuring cell and the environment are compensated for. The ventilation diaphragm is protected against damage by a screwed filter cover with circumferential ports.
  • Page 14 5.4.2 Orientation When the sensor is mounted in a vertical position, the condensate escapes through the ports in the filter cover due to gravity. When the sensor is mounted in a horizontal position and the display is facing upwards or downwards, the escape of the condensate through the filter cover is reduced since it is at the highest or lowest position (→...
  • Page 15 ► Avoid soiling and moisture during the replacement ► Clean the thread carefully and without residues ► Do not damage the adhesive area of the sensor ► Observe the orientation of the filter cover (→ Installation instructions E30139 / 30467) When using the closed filter cover, there is no pressure compensation of the measuring cell any more.
  • Page 16 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: 6.1 Connection for 2-wire operation Core colours brown...
  • Page 17 Wiring example 1 x pnp / 1 x analogue 1 x npn / 1 x analogue 2: OUT2 2: OUT2 4: OUT1 4: OUT1 If analogue signal current (I) is selected in the menu under OU2 and the output is not connected (resistance = infinite), the error message W532 is displayed in intervals.
  • Page 18 10: Set button - Setting of the parameter values (scrolling by holding pressed, incrementally by pressing once). 11: Mode/Enter button - Selection of the parameters and acknowledgement of the parameter values. 8 Menu 8.1 Menu structure: main menu 1: Change to menu level 2 (extended functions) Menu items highlighted in grey ( SP1 ) are not active in 2-wire operation...
  • Page 19 8.2 Explanation of the main menu SP1/rP1* Upper / lower limit for system pressure at which OUT1 switches. OU1* Output function for OUT1: • Switching signal for the pressure limits: hysteresis function [H ..] or window function [F ..], either normally open [. no] or normally closed [. nc]. Output function for OUT2: •...
  • Page 20 8.3 Menu structure: level 2 (extended functions) 1: Change to the main menu, 2: Change to menu level 3 (simulation). Menu items highlighted in grey ( ASP ) are not active in 2-wire operation...
  • Page 21 8.4 Explanation of 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]).
  • Page 22 8.5 Menu structure: level 3 (simulation) With setting SEL = OU 1...60 min With setting SEL = Proc 1...60 min 2: Change to menu level 2 (extended functions) Menu items highlighted in grey ( S.OU1 ) are not active in 2-wire operation...
  • Page 23 8.6 Explanation of menu level 3 With 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, only active if [SEL] = [OU].
  • Page 24 Mode/Enter Set ► Press and hold down [Set] until the valid code no. is displayed. ► Briefly press [Mode/Enter]. When delivered by ifm electronic: no access restriction. Set parameter value ► Press and hold down [Set]. > Current setting value of the Mode/Enter Set parameter flashes for 5 s.
  • Page 25 This locking can only be removed with a parameter setting software. • In case of parameter setting with the user interface of the ifm Container program, the values are directly set in the specified fields.
  • Page 26 • Timeout: If no button is pressed for 15 s during parameter setting, the unit returns to the operating mode with unchanged values. 9.2 Configure display (optional) ► Select [Uni] and set the unit of measurement: - [bAr], [mbAr]. - [MPA], [kPA]. - [PSI] (only PI2793, PI2794, PI2795, PI2796, PI2797, PI2799).
  • Page 27 ► Select [OU2] and set the function: - [Hno] = hysteresis function / normally open - [Hnc] = hysteresis function / normally closed - [Fno] = window function/normally open [OU2] - [Fnc] = window function/normally closed - [I] = current signal proportional to pressure 4…20 mA - [InEG] = current signal proportional to pressure 20…4 mA.
  • Page 28 Alternatively: ► Select [ASP] and set the measured value at which 4 mA is provided (20 mA if [OU2] = [InEG]). [ASP] ► Select [AEP] and set the measured value at which 20 mA is provided (4 [AEP] mA if [OU2] = [InEG]). Minimum distance between ASP and AEP = 25 % of the final value of the measuring range (turn-down 1:4).
  • Page 29 9.4.3 Set delay time for the switching outputs [dS1] / [dS2] = switch-on delay for OUT1 / OUT2. [dS1] [dr1] / [dr2] = switch-off delay for OUT1 / OUT2. [dr1] ► Select [dS1], [dS2], [dr1] or [dr2] and set a value between 0.1 and 50 s [dS2] (at 0.0 the delay time is not active).
  • Page 30 a) Finish calibration: ► Briefly press [Mode/Enter]. > [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.
  • Page 31 9.6.2 Set simulation value Output states If [SEL] is active: ► Press and hold down [Set] until [OU] is displayed. ► Briefly press [Mode/Enter]. > [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.
  • Page 32 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. Operation indication → chapter 7 Operating and display elements. 10.1 Read set parameters ►...
  • Page 33 10.3 Self-diagnostics / error displays The unit has many self-diagnostic options: • It monitors itself automatically during operation. • It indicates warnings and faults via IO-Link and via display (even if the display is deactivated). • If a fault is found, the outputs are set according to the set parameters FOU1 and FOU2 (→...
  • Page 34 W531 Analogue output at the upper ► Increase AEP value if limit (20.5 mA). possible (if [OU2] = [InEG] ASP value) or reduce system pressure. Setting buttons on the unit ► Unlock. locked, parameter change rejected. C.Loc Parameter setting locked ►...
  • Page 35 W162 Unit temperature too low (< Unit outside the specification. -30 °C). ► Insulate the installation. * In case of undervoltage (fault no. W403) nothing is displayed. ** 2 = Out of Spec; 4 = Failure *** This message is only displayed for 3-wire operation. For 2-wire operation undervoltage is detected and displayed.
  • Page 36 SP1 / SP2 rP1 / rP2 ΔP -0.120 2.500 -0.124 2.496 -0.124 1.880 0.500 2.500 0.002 -1.74 36.27 -1.80 36.21 -1.80 27.27 7.26 36.27 0.03 -12.0 250.0 -12.4 249.6 -12.4 188.0 50.0 250.0 1004 1002 1004 -1.22 25.49 -1.26 25.45 -1.26 19.17 5.10...
  • Page 37 11 Factory setting Factory setting User setting 25% VMR * 23% VMR * 75% VMR * 73% VMR * COF / tCOF 0% VMR * ASP / tASP PI2799: -1 bar AEP / tAEP 100% VMR* bAr / mbAr SELd FOU1 FOU2 0.06...

This manual is also suitable for:

Pi2793Pi2714Pi2794Pi2715Pi2795Pi2796 ... Show all