Models 32, 33 Medium Pressure PC Board Mountable Pressure Sensor 0-100 mV Output Differential Pressure Temperature Compensated þ Medical Instrumentation þ HVAC þ Process Control þ Vacuum Measurement þ Air Flow Management DESCRIPTION The Models 32 and 33 are temperature compensated, piezoresistive silicon pressure sensors packaged in TO-8 configurations. They provide excellent performance and longterm stability. Differential pressure ranges from 0-2 PSI to 0-250 PSI are available. Integral temperature compensation is provided over a range of 0-50°C using laser-trimmed resistors. An additional laser-trimmed resistor is included in the Model 33 to normalize pressure sensitivity variations by programming the gain of an external differential amplifier. This provides sensitivity interchangeability of ±1%. Please refer to the low pressure section for information on products with operating pressures less than 0-2 PSI. An uncompensated sensor (Model 30) is also available. For sensors FEATURES in a dual-in-line package please refer to the Models 1210 and þ TO-8 Package þ ±0.1% Non-linearity þ ±0.5% Temperature Performance þ 1.0% Interchangeable Span (provided by gain set resistor) þ Solid State Reliability þ Low Power 1220. Please contact the factory for additional information. DIMENSIONS STANDARD RANGES 1-34 Range psid 0 to 2 ● 0 to 5 ● 0 to 10 ● 0 to 15 ● 0 to 30 ● 0 to 50 ● 0 to 100 ● 0 to 250 ● TO-8 – Standard Models 32, 33 Medium Pressure PC Board Mountable Pressure Sensor PERFORMANCE SPECIFICATIONS Supply Current: 1.5mA Ambient Temperature: 25°C (Unless otherwise specified) PARAMETERS MIN TYP MAX UNITS Full Scale Output Span 75 100 150 mV Full Scale Output Span (2 psi version) 30 Zero Pressure Output 60 mV 2 ±mV Pressure Non-linearity 0.05 0.10 ±% Span Pressure Hysteresis 0.01 0.05 ±% Span NOTES 1 4400 6000 Ω Temperature Error – Span 0.3 0.5 ±% Span Temperature Error – Zero 0.1 0.5 ±% Span 2 Thermal Hysteresis – Span 0.1 ±% Span 2 Thermal Hysteresis – Zero 0.1 ±% Span 2 Supply Current 1.5 mA 3 Response Time 1.0 msec 4 Output Noise 1.0 µV p-p 5 Input & Output Resistance 2500 Output Load Resistance Insulation Resistance (50 VDC) 2.0 2 MΩ 50 MΩ 6 Rated 7 Pressure Overload 3X Operating Temperature 2 –40°C to +125°C Storage Temperature –50°C to +150°C Acceleration 50g Max Shock 1000g Peak for 0.5 mS Vibration 20g Peak at 10 to 2000 Hz Media Non-Corrosive Gases Weight 3 Grams 8 Notes 1. Best Fit Straight Line. 6. Between case and sensing element. 2. Temperature range 0-50°C in reference to 25°C. 7. 3. Guarantees input/output ratiometricity. 3X not to exceed 500 psi on ranges:0-10 psi to 0-250 psi, 20 psi for 2 psi and 5 psi versions. 4. For a zero-to-full scale pressure step change. 8. 5. 10 Hz to 1kHz. For top entry versions, wetted materials are silicon, aluminum, gold, RTV, glass, and nickel. For bottom entry versions, wetted materials are silicon, RTV, gold, and glass. CONNECTIONS M od e l 32 APPLICATION SCHEMATIC M od e l 33 ORDERING INFORMATION 33A - 015 D Type (D = Differential) Pressure Range Model (33 or 32) (with or without gain set) April 2000 TO-8 – Standard 1-35