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DIFFERENTIAL PRESSURE SWITCH

PascalSwitch 20 Differential Pressure Switch. Measurement range: 0 ... 20 Pa
PascalSwitch 100 Differential Pressure Switch. Measurement range: 0 ... 100 Pa
High precision measurement instrument for monitoring of differential pressures, available in
2 versions as PascalSwitch 20 and PascalSwitch 100.
Outstanding accuracy, reproducibility and long-term stability.
Two threshold values including delay function and hysteresis are freely programmable throughout the whole measurement range.
Two threshold values including delay function and hysteresis are freely programmable throughout the whole measurement range

Our Price: Contact us for pricing
Phone: 253-927-6186
866-318-6186
Fax: 253-927-6189
email: sales@hotektech.com
  • No mechanical moving parts
    (e.g. diaphragm) in the measurement cell
  • Very low accuracy error <±0.25% FS (full scale) or <±1.5%m.V.(measured value) whichever is larger
  • Very low offset drift <0.1Pa/year
  • No hysteresis
  • Insensitive to vibrations
  • Not damaged by high differential
    pressures up to 2 bar
  • Clean room compatible designed
  • Two threshold, hysteresis and delay values are freely programmable
  • Two integrated relays max. 2A/60W
  • LED display of the two alarm points
  • Easy to calibrate (Zero and Gain)
  • Customer specific configuration is possible
  • Quick and simple programming
    with PascalTool-Palm or Palm Emulator on PC
  • Easy compensation of hose length by configuration software
Technical specifications
Type PascalSwitch 20 PascalSwitch 100
Article-No. 1115961 1115962
Article-No. for PascalSwitch C 1116386  1116387
Measurement range 0 ... 20 Pa 0 ... 100 Pa
Max. resolution 0.016 Pa 0.07 Pa
Measurement interval 150 ms ... 1350 ms 150 ms ... 1350 ms
Time constant 10 ms 10 ms
Measurement accuracy (at 20°C/50%RH)
(m.V. = of measured value)		 < 4 Pa = ± 0.05 Pa
>/= 4 Pa = ±1,5% m.V.		 < 17 Pa = ± 0.25 Pa
>/= 17 Pa = ±1.5% m.V.
Temperature effect < 0.05% m.V./°C < 0.05% m.V./°C
Atmospheric pressure effect (at 1013.25 hPa) 0.1% m.V./hPa 0.1% m.V./hPa
Hysteresis 0.00% 0.00%
Offset drift (at constant Temp. 20°C) < 0.1 Pa/year < 0.1 Pa/year
Max. permissible differential pressure ± 2 bar ± 2 bar
Max. permissible overpressure 2 bar 2 bar
Max. mass flow through the sensor 120 sccm (0.12 liter/min) 370 sccm (0.37 liter/min)
Operating temperature range 0 ... 50°C 0 ... 50°C
2 Threshold values adjustable > or < 0.01 ... 19.99 Pa > or < 0.01 ... 99.99 Pa
2 Relays (break- and make contacts) max. 48V/2A and max. 60W
resistive load		 max. 48V/2A and max. 60W
resistive load
Digital interface useable only for configuration or PC-Communication with PSwitchDLL
Power supply 10 ... 35 VDC 10 ... 35 VDC
Power consumption max. 1.2 W max. 1.2 W
Protection IP 54 / EMC IP 54 / EMC

Please email sales@hotektech.com or call 253-927-6186 if you are interested in a purchase, or
  need additional information.