3 Functions and features The pressure sensor detects the system pressure of machines and installations 3.1 Applications Type of pressure: relative pressure Permissible Order no. Measuring range Bursting pressure overload pressure PI003A -125 -1443627 1 450 5 070 mbar PI008A -124250 -018362 PI009A...
First the set point (SP1) is set, then the reset point (rP1) at the requested distance • 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 distance between SP1 and rP1 SP1 = maximum value, rP1 = minimum value P = system pressure;...
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Current output 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] 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 >...
Voltage output Factory setting Measuring range scaled U [V] U [V] P = system pressure, MAW = initial value of the measuring range, MEW = final value of the measuring range : [OU2] = [U]; : [OU2] = [UnEG] The output signal is between 0 and 10 V ([OU2] = [U]) or between 10 and 0 V ([OU2] = [UnEG]) in the set measuring range It is also indicated: • System pressure above the measuring range:...
5 Installation Ensure that no pressure is applied to the installation while mounting or removing the sensor Please note: Display „0%“ does not mean that the system is free of pressure! Horizontal mounting recommended for high medium temperatures ► Slightly grease the thread of the sensor using a lubricating paste which is suitable and approved for the application...
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Mounting ► Slightly grease the contact areas between the sensor and adapter using a lubricating paste which is suitable and approved for the application ► Screw the unit into the adapter (A) until it is hand-tight (fig 1) Do not damage the sealing chamfers ►...
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 to EN50178, SELV, PELV ► Disconnect power ► Connect the unit as follows: OUT1 p-switching OUT1 n-switching 2: OUT2...
7 Operating and display elements 3 4 5 6 Mode/Enter 1 to 8: Indicator LEDs - LED 1 to LED 6 = system pressure in unit of measurement as indicated on the label LEDs 5 to 6 not used for units with 3 adjustable units of measurement - LED 7 not used - LED 8 = switching state of the output (LED lights if output 1 is switched) 9: Alphanumeric display, 4 digits...
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8.2 Menu explanation SP1/rP1 Maximum / minimum value for system pressure, at which output 1 changes its switching status Output function for OUT1: • Switching signal for the limit values: hysteresis function [H ] or window function [F ], normally open [ no] or normally closed [ nc] each • Diagnostic signal [dESI] Output function for OUT2: • Analogue signal for the current system pressure: 420 mA [I], 204 mA...
9 Parameter setting During the parameter setting process the unit remains in the operating mode It continues its monitoring function with the existing parameters until parameter set- ting has been terminated 9.1 Parameter setting general Each parameter setting requires 3 steps: Selecting parameter ►...
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► Press [Set] and keep it pressed until the valid code no is displayed ► Press [Mode/Enter] briefly Delivery by ifm electronic: no access restriction • Locking / unlocking The unit can be locked electronically to prevent unintentional wrong settings ►...
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9.2 Configuring the display (optional) ► Select [Uni] and set the unit of measurement: - [bAr], [mbAr], - [MPA], [kPA], - [PSI], - [InHO] (only PI008A, PI009A), - [mWS] (only PI009A), - [mmWS] (only PI008A) ► Select [SELd] and set the display mode: - [P]: Pressure in the unit set in Uni - [P%]: percentage value (pressure in % of the set scaling of the analogue output The following applies: 0% = ASP value;...
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9.3.2 Setting the switching limits ► Select [SP1] and set the value at which OUT1 switches ► Select [rP1] and set the value at which OUT1 switches back rP1 is always lower than SP1 The unit only accepts values which are lower than SP1 9.3.3 Scaling the analogue value ►...
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9.4 User settings (optional) 9.4.1 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 amount As an alternative: Automatic adaptation offset (setting range 0 bar ±5%); eg in the event of a deviation of the mounting location of the sensor and the zero point level for level measurement ►...
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9.5 Service functions 9.5.1 Reading the min./max. values for the system pressure ► Select [HI] or [LO], press [Set] briefly [HI] = maximum value, [LO] = minimum value Delete memory: ► Select [HI] or [LO] ► Press [SET] until [----] is displayed ►...
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10.3 Cleaning of the filter cover If viscous and residues producing media clog the filter cover of the sen- sor (and thus reduce the measuring accuracy slightly), you can clean it ► Unscrew the filter cover (B) (use a pair of pliers with plastic-covered jaws for this) ►...
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11 Scale drawing 50,5 20° 25,4 Dimensions are in millimeters 1: display 2: LED’s 3: programming button 12 Technical data Operating voltage [V] 1832 DC Current consumption [mA] < 50 Current rating [mA] 250 Short-circuit / reverse polarity / overload protection, integrated watchdog Voltage drop [V] <...
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Accuracy / deviation (in % of the span) - Characteristics deviation (linearity incl hysteresis and repeatability) < ± 02 - Linearity < ± 015 - Hysteresis < ± 015 - Repeatability (with temperature fluctuations < 10 K) < ± 01 - Long-term stability (in % of the span per year)<...
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13 Factory setting Factory setting User setting 25% VMR* 23% VMR* ASP / tASP 0% VMR* AEP / tAEP 100% VMR* COF / tCOF bAr / mbAr SELd * = the indicated percentage of the final value of the measuring range of the corresponding sensor in bar / mbar is set (for PI009A the percentage of the span) VMR = final value of the measuring range More information at wwwifmcom...
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