Pressure sensor with diagnostic function for pumps.

Pressure sensor with diagnostic function for pumps.

Pump monitoring and pressure detection – one sensor for 2 functions!

  • Diagnosis of disturbance in the suction area (e.g. cavitation).
  • Outgassing liquids and air trapped in the pump are detected.
  • Independent system-pressure monitoring with second binary switching output.
  • As an alternative: pump control by analogue output.
  • Hygienic design to avoid deposits and for better cleaning.
Advantages of the pump diagnostic sensor
The pump diagnostic sensor enables diagnosis independently of pump type, pump characteristics and rotational speed range. The conveying characteristics of the pump to be monitored is continuously detected. Significant changes are detected and lead to an automatic alarm message when critical operating states with damage potential for the pump or system are reached. The state of the pump can be quickly detected via a trend display. In addition the system pressure is shown periodically. The pump sensor can be set up easily and without specialist knowledge. The conveying characteristics of the pump is simply taught.
Compact design
The compact PIM pressure sensor monitors the static system pressure and the dynamic pressure pulsation in the medium. This requires no external evaluation with additional installation input.
Higher plant up-time
The condition-based monitoring of the system “around the pump” leads to longer maintenance intervals. The up-time of the complete plant is increased – expensive consequential damage caused by adverse operating points of the pump is avoided.
Not only the pump is monitored
Disturbance around the pump (e.g. air trapped in the medium, clogged filters, deposits in pipes, improperly opened valves, etc.) are harmful for the entire system and its drives. These often progressive processes are detected thus protecting the complete system.
Monitoring of the system pressure
The second output of the sensor detects the system pressure completely independently of the diagnostic function. It can be configured as a switching output with hysteresis or window function or as a scaleable analogue output. Due to the high overload resistance of the ceramic capacitive measuring cell the sensor is especially suited for switch-off in case of overpressure.
Integrated hygienic connection
The integrated ASEPTOFLEX adapter thread (PIM093, PIM094) enables hygienic connection to all common process adapters. As an alternative a variant with G 1 thread (PIM693, PIM694) is available. If the welding adapter is used, pressure can be detected without O-ring in a chemically extremely robust manner. For both variants the measuring cell is integrated flush. So the PIM is suitable for hygienic applications. Furthermore, the integrated temperature decoupling allows cleaning (CIP) and sterilisation when mounted (SIP).
Parameter setting
The FDT programming software ZZ0050 enables display of the measured values and adaptation of the parameters. Among others, scaling of the analogue output, setting of the limit values and parameter setting of the thresholds for diagnosis are possible.

Combined sensor for pump diagnosis and pressure monitoring:

PIM093 - Combined sensor for pump diagnosis and pressure monitoring, no dead space, Freely rotatable housing 350°, Zero and span adjustable, Function programmable, DC PNP, 4-digit alphanumeric display, 2 outputs, OUT1 = pump diagnosis, OUT2 = pressure monitoring, IP 67 / IP 69K, Ambient temperature -25...80 °C, Measuring range: -1...25 bar, M12 connector
PIM094 - Combined sensor for pump diagnosis and pressure monitoring, no dead space, Freely rotatable housing 350°, Zero and span adjustable, Function programmable, DC PNP, 4-digit alphanumeric display, 2 outputs, OUT1 = pump diagnosis, OUT2 = pressure monitoring, IP 67 / IP 69K, Ambient temperature -25...80 °C, Measuring range: -1...10 bar, M12 connector
PIM693 - Combined sensor for pump diagnosis and pressure monitoring, no dead space, Freely rotatable housing 350°, Zero and span adjustable, Function programmable, Sealing cone G1 male, DC PNP, 4-digit alphanumeric display, 2 outputs, OUT1 = pump diagnosis, OUT2 = pressure monitoring, IP 67 / IP 69K, Ambient temperature -25...80 °C, Measuring range: -1...25 bar, M12 connector
PIM694 - Combined sensor for pump diagnosis and pressure monitoring, no dead space, Freely rotatable housing 350°, Zero and span adjustable, Function programmable, Sealing cone G1 male, DC PNP, 4-digit alphanumeric display, 2 outputs, OUT1 = pump diagnosis, OUT2 = pressure monitoring, IP 67 / IP 69K, Ambient temperature -25...80 °C, Measuring range: -1...10 bar, M12 connector