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Pressure switch with intuitive switch point setting PK7520

  • Simple switch point setting by means of two setting rings allowing optimum reading
  • High long-term stability thanks to robust stainless steel measuring cell with high permissible pressure rating
  • Mechanical locking prevents inadvertent switch point manipulation
  • Lifespan of more than 50 million pressure cycles
  • For use in hydraulics, pneumatics, air-conditioning and refrigeration
  • Description

    Description

    PK-400-SFG14-QSPKG/US/ /W

    Product characteristics Number of inputs and outputs Number of digital outputs: 2 Measuring range
    0…400 bar 0…5800 psi
    Process connection threaded connection G 1/4 external thread internal thread:M5 Application Application for industrial applications Media liquids and gases Medium temperature [°C] -25…80 Min. bursting pressure
    1600 bar 23200 psi
    Pressure rating
    600 bar 8700 psi
    Type of pressure relative pressure Electrical data Operating voltage [V] 9.6…32 DC Current consumption [mA] < 25 Min. insulation resistance [MΩ] 100; (500 V DC) Protection class III Reverse polarity protection yes Inputs / outputs Number of inputs and outputs Number of digital outputs: 2 Outputs Total number of outputs 2 Output signal switching signal Electrical design PNP Number of digital outputs 2 Output function normally open Max. voltage drop switching output DC [V] 2 Permanent current rating of switching output DC [mA] 500 Switching frequency DC [Hz] 100 Short-circuit protection yes Type of short-circuit protection pulsed Overload protection yes Measuring/setting range Measuring range
    0…400 bar 0…5800 psi
    Set point SP
    12…400 bar 174…5800 psi
    Hysteresis
    8 bar 116 psi
    Accuracy / deviations Switch point accuracy [% of the final value] < ± 2,5; (Setting accuracy) Repeatability [% of the final value] < ± 0,5; (with temperature fluctuations < 10 K) Characteristics deviation [% of the final value] < ± 1,5 (BFSL) / < ± 2,5 (LS); (BFSL = Best Fit Straight Line; LS = limit value setting) Temperature drift per 10 K < ± 0.5 Software / programming Adjustment of the switch point setting rings Operating conditions Ambient temperature [°C] -25…80 Storage temperature [°C] -40…100 Protection IP 67 Tests / approvals EMC
    DIN EN 61000-6-2
    DIN EN 61000-6-3
    Shock resistance
    DIN IEC 68-2-27 50 g (11 ms)
    Vibration resistance
    DIN IEC 68-2-6 20 g (10…2000 Hz)
    MTTF [years] 668 Pressure Equipment Directive Sound engineering practice; can be used for group 2 fluids; group 1 fluids on request Mechanical data Weight [g] 94.5 Materials PBT; PC; FKM; stainless steel (1.4404 / 316L) Materials (wetted parts) stainless steel (1.4404 / 316L); FKM Min. pressure cycles 50 million Tightening torque [Nm] 25 Process connection threaded connection G 1/4 external thread internal thread:M5 Restrictor element integrated no (can be retrofitted) Displays / operating elements Display
    switching status 2 x LED, yellow
    With scale yes Remarks Pack quantity 1 pcs. Electrical connection Connection Connector: 1 x M12; coding: A
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