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  • my ifm
  1. PN pressure sensors
  2. Setup and support
  3. Device configuration

Device configuration for PN pressure sensors

The following will guide you through key programming steps for the PN pressure sensors. Refer to the Operating Instructions manual found under the "Downloads" tab at the product datasheet page for more details on these and other features.

All of ifm's process sensors, including the PN series pressure sensors, use similar terminology for programming. We highlight the features used most often here. Refer to the Operating Instructions manual found under the "Downloads" tab at the product datasheet page for more details on these and other features.

Switching outputs

  • Hno -- hysteresis normally open: Output turns on when the set point (SP) is reached and stays on until the pressure drops below the reset point (rP)
  • Hnc -- hysteresis normally closed: Output turns off when the set point (SP) is reached and stays off until the pressure drops below the reset point (rP)
  • Fno -- window normally open: Output turns on when pressure is between the high limit (FH or SP) and low limit (FL or rP)
  • Fnc -- window normally closed: Output turns off when pressure is between the high limit (FH or SP) and low limit (FL or rP)

Analog outputs (available on PN2xxx sensors)

  • ASP -- analog start point:  Pressure where the analog signal equals 4 mA / 0 VDC
  • AEP -- analog end point:  Press where the analog signal equals 20 mA / 10 VDC
  • MEW -- final value of the non-scaled measuring range

The chart shows how the analog signal and display information changes when the pressure is above / below the scaled or non-scaled measuring ranges. This feature is useful in for your process control and troubleshooting issues.

  • When system pressure is above the set AEP, the analog signal = 20...20.5 mA / 10...10.3 VDC
  • When system pressure is below the set ASP, the analog signal = 4...3.8 mA / O VDC
  • In the case of a fault, the analog signal = 21.5 mA / 11 VDC

The minimum scaled measuring range is available on the product datasheet.

Display and indications

  • LEDs 2...7 indicate selected units of measure for process values. 
  • LEDs 1 and 2 indicate switching status of outputs
  • 9: Enter button: Use to select parameter and confirm the setting
  • 10: Down arrow button: Use to change parameter values. Remember to confirm setting by pressing Enter button.
  • 11: Up arrow button: Use to change parameter values. Remember to confirm setting by pressing Enter button.
  • 12: 4-digit alphanumeric display for indication of process values, parameters and parameter values

General use of pushbuttons

1 Press Enter (E) once to enter programming mode.
2 Press Up or Down arrow (U/D) to view parameters or additional menus.
3 To change setting, press Enter (E) and then Up or Down arrow (U/D) and hold until the display stops flashing. Then press Up or Down arrow (U/D) to toggle through options.
4 When desired value is reached, press Enter (E) to confirm the setting.

The following illustrate the most common programming required for pressure sensing applications. Refer to the Operating Instructions manual found under the "Downloads" tab at the product datasheet page for more details on these and other features.

Change units of measure

1 Press E to enter programming mode.
2 Press D until "EF" extended functions is displayed. Press E to confirm.
3 Press D until "uni" units of measure is displayed. Press E to confirm.
4 Press U/D to change to the desired units of measure is displayed. 
5 Press E to confirm. After 15 seconds, the meters returns to normal run mode.

Set a switching set point

1 Press E to enter programming mode.
2 Press D until "SP1" set point for output 1 is displayed. Press E to confirm.
3 Press U/D to set the desired switching set point. Press E to confirm.
4 Press D until "rP1" reset point for output 1 is displayed. Press E to confirm.
5 Press U/D to set the desired switching reset point. Press E to confirm.
6 After 15 seconds, the meters returns to normal run mode.

Scale the analog signal

1 Press E to enter programming mode.
2 Press D until "EF" extended functions is displayed. Press E to confirm.
3 Press D until "ou2" output 2 is displayed. Press E to confirm.
4 Press U/D to set output 2 to "I" for analog current or "U" for analog voltage. Factory default is analog current. Press E to confirm.
5 Press D until "ASP2" is displayed. You will scroll through the rest of the menu items. Press E to confirm.
6 Press U/D to enter the value representing the analog start point (4 mA / 0 VDC). Press E to confirm setting.
7 Press D until "AEP2" is displayed. Press E to confirm.
8 Press U/D to enter the value representing the analog end point (20 mA / 10 VDC).
9 Press E to confirm setting. After 15 seconds, the meter returns to normal run mode.