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Low Range Differential Pressure Sensor

Kavlico P993 Low Range Differential Pressure Transducer Data Sheet - 39360 P993

Description

The P993 series of pressure sensors incorporates a silicon capacitive sensing element in a compact package.Using a 5 Vdc input, the sensors provide a 0.25 to 4.0 Vdc output proportional to pressure. Internal temperature compensation provides an accurate, easy to use device.The innovative design eliminates mounting position eects found on other low pressure dierential sensors currently available in the market.
• Rugged PCB Mount Package• Amplied Temperature Compensated Linear Output • No Position Sensitivity • EMI/RFI & ESD Protected • Superior Output Signal Stability

Standard Full ScalePressure RangesApplicationsFeatures

• Variable Air Volume Systems (VAV)• Filter Pressure Monitoring • Duct Air Flow • Modulated Furnace Controls • Combustion Air Flow • Gaseous Leak Detection• 2, 5, 10” H
2 0• ±1, ±2, ±5” H
2

Technical Specifications

Note: Performance Specications with 5v ± 0.002 Vdc supply at 25°C Dierential Pressure Ranges: 2, 5, 10, (inches of H 2 0) ±1, ±2, and ±5Proof Pressure: 1.0 PSI (either port)Burst Pressure: 1.5 PSI (either port)Supply Voltage: 5.0 ± 0.5 VdcSupply Current: 4mA Max.Output Voltage (Ratiometric): 0.25 to 4.0 VdcCalibration Tolerance (at 5.0 Vdc supply and no load): Zero/Null Pressure 0.25 Vdc ±60 mVSpan 3.75 Vdc ±60 mVVoltage Ratiometricity: ±1.5% of span Max. 4.75 to 5.25 Vdc supply Temperature Eects (0 to 60°C): ±2% of span Max.Output Impedance: 100 Ohms Max.Service Life 10,000,000 cycles Min. Shock: 10G at 6ms durationVibration: 1G from 20 Hz to 1200 HzOperating Temperature: 0 to 60°CStorage Temperature: -40°C to +95°CHumidity: 95% RH, non-condensingWeight: 2.5 oz. Max.Electrical Termination: 3 solderable pins, tin platedPreferred Mounting Position: NonePressure Connection: 1/8” diameter tube tting with barb for 3/16 ID tubingRecommended Interface Impedance: 25K Ohm Min. resistance between transducer output and ground, in parallel with 0.2 uF Max. capacitance Over-voltage Protection: 16 VdcReverse Polarity Protection: -6 Vdc Model No. P993 © 2007 Kavlico. All rights reserved. August 2007