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The Small Pressure Sensor 12 is a compact, precision instrument designed for accurate gauge pressure measurement in air and non-corrosive, non-flammable gas environments. It features a diffused semiconductor pressure transducer that provides reliable detection of pressure changes within the -100 to 0 kPa range, making it ideal for applications requiring stable baseline readings with minimal environmental interference.
The sensor is constructed without any copper-based metallic materials in its flow paths, ensuring compatibility with ozone-rich environments. The seal rubber is made from HNBR or FKM elastomers, which offer excellent resistance to aging and chemical exposure. All internal components are designed for durability under operational conditions while maintaining material integrity over time.
The sensor offers three distinct pressure introduction configurations to suit different installation needs. It features a metric male thread (M5x0.8) and a taper pipe male thread (R1/8), allowing flexible integration into various piping or mounting systems. Additionally, the sensor includes a lead-wire connection that simplifies wiring and facilitates maintenance due to its direct lead-wire interface.
Operating conditions are optimized for industrial reliability: it functions within an ambient temperature range of 0 to 60°C (no freezing), humidity levels from 30% to 85% RH (no dew condensation), and storage temperatures ranging from -20°C to 70°C. The sensor consumes a maximum current of 20mA at no-load under 24VDC operation, ensuring low power demand. Output voltage ranges from 1 to 5V with a zero-point voltage of 1±0.04V and a setting pressure voltage of 4.6±0.04V (at -90kPa). The output current is limited to 0.495mA when loaded with a 10kΩ resistor, and the output impedance is 1kΩ.
The Small Pressure Sensor 12 is available in five lead wire lengths for customized installation flexibility. It has a compact physical size of 25.4mm (length) x 8.5mm (width), with a sensor body diameter of φ4 or φ6 mm, enabling integration into tight spaces. The output type supports both analog and switch outputs—specifically, NPN open collector switch output with a maximum load of 30V and 80mA or less, and residual voltage not exceeding 0.8V.
Installation is supported through standard threaded interfaces: M5x0.8 metric male thread and R1/8 taper pipe male thread. The sensor can be directly connected to a display system such as the SED-31 series, which enables independent monitoring via analog output. No copper-based materials in flow paths ensure compatibility with ozone environments where such materials would otherwise degrade.
| Specification | Details |
|---|---|
| Fluid medium | Air, non-corrosive/non-flammable gas |
| Pressure detection | Diffused semiconductor pressure transducer, Gauge pressure |
| Current consumption | 20mA or less (No-load at 24VDC) |
| Operating pressure range | -100 to 0kPa |
| Proof pressure | 1MPa |
| Storage temp. range | -20 to 70°C |
| Operating temperature range | 0 to 60°C (No freezing) |
| Operating humidity range | 30 to 85% RH (No dew condensation) |
| No. of output settings | 1 |
| Switch output | NPN open collector/30V 80mA or less (Residual voltage: 0.8V or less) |
| Response | About 1msec |
| Pressure setting range | -100 to 0kPa |
| Output voltage | 1 to 5V |
| Zero-point voltage | 1±0.04V |
| Voltage at setting pressure | 4.6 ±0.04V (at -90kPa) |
| Output current | 0.495mA or less (Load resistance: 10kΩ) |
| Output impedance | 1kΩ |
| mm size (mm) | φ4, φ6 |
| Metric male thread | M5x0.8 |
| Taper pipe male thread | R1/8 |
| Material restriction | No copper-based metallic material is used in flow paths |
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