BSWM070DV-PCB SENSORTECHNICS | Alldatasheet

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Technical content

Solid state pressure switch with analog output 1/4March 2001 / 016 www.sensortechnics.com

FEATURES

  • Differential, gage and absolute pressure options
  • Adjustable threshold point
  • Adjustable hysteresis
  • 1 - 5 V analog output
  • Low side and high side switching output
  • LED status indicator
  • Long term stability 0.1 % / year ELECTRICAL BLOCK DIAGRAM 11 to 30 V 20 mA 100 mA 300 mA -55 to 100°C -40 to 85°C 0 to 70°C 1.4 bar 2 x rated press. 1.5 x rated press. SPECIFICATIONS Maximum ratings Supply voltage Output current Analog output Switching output 1 (pnp) Switching output 2 (npn) Temperature limits Storage Operating Compensated Proof pressure BSWM... BSW010... SERVICE Pressure inlet: Non-corrosive, non-ionic pressure media, such as dry air and dry gases. Scale: 1 cm 1 inch Hysteresis setThreshold set Pressure Ψ V LED Reg. -Vs GND Switch 2 out Switch 1 out4 LOAD V Analog out LOAD 1 +Vs

Solid state pressure switch with analog output 2/4 March 2001 / 016 www.sensortechnics.com Specification notes: Proof pressure is the maximum pressure which may be applied without causing damage to the sensing element. increases when vacuum is applied to port P1 relative to port P2. The output signal of all BSW...A-PCB is proportional to the absolute pressure applied to port P1. Span is the algebraic difference between the output at full scale pressure and offset. Non-linearity refers to the Best Straight Line fit measured for offset, full scale and 1/2 full scale pressure. Temperature shift tested and guaranteed at 70°C relative to 25°C. All specs are shown relative to 25°C. Difference in output/switch point at any pressure within the operating pressure range and temperature within 0 - 70°C after: a) 1000 temperature cycles, 0 - 70°C b) 1 million pressure cycles 0 bar to full scale pressure Hysteresis setting has a direct influence on the switching points when the pressure increases or decreases. The switching points can be calculated as follows: Output going active (LED on) when pressure exceeds SET POINT + hysteresis/2 Output going inactive (LED off) when pressure falls below SET POINT - hysteresis/2 PERFORMANCE CHARACTERISTICS (unless otherwise noted VS = 15 V, tamb = 25°C) Characteristics Operating pressure (differential/gage)2 BSWM070D... BSWM350D... BSW001D... BSW002D... BSW005D... BSW010D... Operating pressure (absolute) 3 BSW001A... BSW002A... BSW005A... Min. Typ. Max. 350 Unit mbar bar ANALOG OUTPUT 0.8 4.8 1.0 5.0 4.0 0.2 ±0.04 ±0.03 ±0.02 0.1 1.2 5.2 1.0 ±0.20 ±0.15 ±0.10 V %FSO %FSO/°C %FSO Zero pressure offset Full scale output Full scale span Non-linearity and hysteresis (BSL)5 Thermal effects (0 - 70°C)6 Combined offset and span BSWM070D... BSWM350D... all others Long term stability SWITCHING OUTPUT 7.5 0.5 0.2 1.2 100 V kHz %FSO Switching output 1 Switching output 2 Output voltage (high) Switching output 1 Output voltage (low) Switching output 2 Status indication Threshold point setting Hysteresis setting8 Switching frequency Switch point repeatability pnp, open collector, load switched to ground npn, open collector, load switched to +Vs red LED setpoint hyst. hyst. pressure switching output

Solid state pressure switch with analog output 3/4March 2001 / 016 www.sensortechnics.com PHYSICAL DIMENSIONS BSW...V-PCB BSW...H-PCB Connection +Vs Vout (analog) -Vs (GND) Switch 1 (out) Switch 2 (out) Pin connection Pin mass: 18 g dimensions in mm 44.0 1.6 6.7 53.3 46.9 39.3 59.7 52.3 2 x 4.8 diam. 30.0 LED 19.8 13.5 Hysteresis adjustment LED Switchpoint adjustment 22.8 2 x 3.5 diam. 18.0 3.1 10.3 12.7 4 x 2.54 1.6 59.7 52.3 19.8 6.3 53.3 46.9 39.3 LED 30.0 2 x 3.5 diam. 12.7 22.8 33.5 Switching adjustment Hysteresis adjustment 7.8 6.7 4 x 2.54 mass: 21 g dimensions in mm

Solid state pressure switch with analog output 4/4 March 2001 / 016 www.sensortechnics.com

ORDERING INFORMATION

Sensortechnics reserves the right to make changes to any products herein. Sensortechnics does not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. HYSTERESIS AND SWITCH POINT SETTING Function Hysteresis Switching point Change per scale unit ≈ 0.9 %FS ≈ 7.3 %FS