SP38T High overload silicon pressure sensor

Product catalog summary

Description:
The SP38T is a high precision piezoresistive single crystal silicon pressure sensor. It features built-in temperature compensation to enhance temperature performance. It can withstand high overload pressures up to 16MPa, despite a nominal pressure range of 6kPa. The sensor operates effectively in harsh environments with a working temperature range of -40°C to 120°C. It is applicable in various fields such as process control, environmental control, hydraulic and pneumatic equipment, and medical instruments.

Key Features:

Accurate filling fluid technology
Dual diaphragm overload structure
High long-term stability of less than ±0.05% F.S./year
Low pressure and temperature hysteresis
Optional built-in temperature sensor
Multiple isolation diaphragm materials available
Compact design for easy encapsulation

Technical Specifications:

Power Supply: 5V (typical), 12V (maximum)
Working Temperature: -40°C to 120°C
Storage Temperature: -50°C to 125°C
Output Voltage: 60 to 140mV at 5V
Temperature Effect on Zero: ±0.05% F.S./°C
Temperature Effect on Span: -0.2±0.03% F.S./°C
Temperature Hysteresis: <±0.05% F.S.
Pressure Hysteresis: <±0.025% F.S.
Long Term Drift: <±0.05% F.S./year
Linearity Error: <±0.3% F.S.
Diaphragm Material: 316L or Hastelloy C
Mechanical Connection: M27×2(M), 2-3/16-16 UNS
Process Connection: M20*1.5(F)

Pressure Range and Static Pressure:

SP38T-602: -6 to 6kPa, Overload Pressure: 16MPa
SP38T-403: -40 to 40kPa, Overload Pressure: 16MPa
SP38T-254: -100 to 250kPa, Overload Pressure: 16MPa
SP38T-105: -0.1 to 1MPa, Overload Pressure: 16MPa

Wiring Diagram and Dimensions:
The document provides wiring diagrams and dimensions for installation, including color-coded wiring definitions and mechanical connection details.

Selection Table:
The selection table includes options for diaphragm material, fill fluid, mechanical connection, process connection, sensor seal, and wiring configuration, allowing customization based on specific requirements.

Catalog excerpts

SP38T High overload silicon pressure sensor-1

SP38T Piezoresistive single crystal silicon pressure sensor SP38T Piezoresistive single crystal silicon pressure sensor I: Description The core sensor is high precision single crystal silicon technology with SP38T, it can be built-in temperature compensation, which maximum improves the temperature performance of the sensor. With high overload pressure, one side overload pressure can up to 16MPa even though the nominal pressure range is 6kPa. SP38T is suitable for all kinds of harsh environment, the working temperature is -40~120°C. SP38T Piezoresistive single crystal silicon pressure transmitter is widely used in process control, environmental control, hydraulic and pneumatic equipment, servo valve and transmission, chemical products and chemical industry as well as medical instrument and so on. ● Accurate ﬁlling ﬂuid technology ● Dual diaphragm overload structure ● High long term stability <±0.05%F.S./year ● Very low pressure and temperature hysteresis ●Optional for built-in temperature sensor ● Optional for multiple isolation diaphragm material, widely meet the anti-aggressive requirements ●Compact design, easy encapsulation

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SP38T High overload silicon pressure sensor-2

SP38T Piezoresistive single crystal silicon pressure sensor II: Technical speciﬁcations: Pressure range and Static Pressure Type One side overload pressure Technical speciﬁcations Power supply Working temperature Storage temperature Output voltage Temperature Effect On Zero Temperature Effect On Span Temperature hysteresis Pressure hysteresis Long term drift Linearity error Diaphragm material Mechanical connection for housing

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SP38T High overload silicon pressure sensor-3

SP38T Piezoresistive single crystal silicon pressure sensor III:Wiring diaphragm and Dimensions Wiring diagram Wiring color SBlue BYellow Yellow White Blue

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SP38T High overload silicon pressure sensor-4

SP38T Piezoresistive single crystal silicon pressure sensor Ventilation plug Ventilation plug

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SP38T High overload silicon pressure sensor-5

SP38T Piezoresistive single crystal silicon pressure sensor V:Selection table Mechanical connection for housing Fill ﬂuid Diaphragm material Following detail speciﬁcations Pressure range Piezoresistive single crystal silicon pressure sensor Sensor seal

Open the catalog to page 5