Features
SS330 series low pressure sensor is a piezoresistive silicon-based sensing device. It has high repeatability and low pressure hysteresis measurements. A thin stainless steel membrane and silicone oil fill isolate the silicon chip from the pressure media. The high sensitivity of silicon semiconductor strain gauges facilitates low pressure ranges down to as low as 0 to 100 mbar. Because of the metal capsule construction, it is compatible with wet media.
The sensor can be modified according to your specific requirements. It is calibrated and temperature-compensated and offers different amplified analogue output signals. Our low-pressure range offers many outputs and both electrical and pressure connections. It fits many uses, such as airflow and air consumption, ventilation and HVAC, calibration, wind tunnel, cleanroom control, and draught measurement.
SS331 series low pressure sensor can measure the pressure of air, gases, and non-aggressive low-viscosity fluids. It utilizes a highly linear exposed piezoresistive silicon element. An exposed silicon diaphragm boosts sensitivity and enhances performance at low pressures. SS330 series suits industrial OEM low-pressure measurement needs. It works well with dry and non-corrosive liquids and gases.
Parameters
Performance
| Accuracy @ 25 °C | ± 1.0% F.S. (incl. non-linearity, hysteresis and repeatability) |
|---|---|
| Pressure range | 0.1 bar, 0.2 bar, 0.3 bar, 1.5 psi, 2 psi, 3 psi |
| Pressure type | vented gauge |
| Overload pressure | 2.0 × F.S. (≤ 250 bar) |
| 1.5 × F.S. (> 250 bar) | |
| 1.2 × F.S. (1000bar) | |
| Response time | < 4 ms |
| Long term stability | ≤ 0.2% F.S./Year |
| Temperature coefficient | ± 0.03% F.S./°C |
| Sensor | Silicon |
Electrical specifications
| 4-20mA | 10%-90% | 0-5V / 0-10V | 0.5-4.5V | |
|---|---|---|---|---|
| Supply voltage | 9-30V | 5V ratiometric | 12-30V | 5Vdc |
| Polarity protected | yes | yes | yes | yes |
| Short-circuit protected | yes | yes | yes | yes |
| Zero and span adjustment | No | No | No | No |
| Surge protection | yes | yes | yes | yes |
Environmental conditions
| Medium temperature range | -20°C → +100°C |
|---|---|
| Ambient temperature range | -20°C → +80°C (depending on electrical connection) |
| Compensated temperature range | 0°C → +70°C |
| EMC – Emission | EN 61000-6-3 |
| EMC – Immunity | EN 61000-6-1 |
| Insulation resistance | > 100 MΩ at 250 V |
Mechanical characteristics
| Diaphragm | Stainless steel 316L (wetted parts) | Tantalum, Hastelloy-C is on on request | |
|---|---|---|---|
| Enclosure | Stainless steel 304 | ||
| O-ring | FKM / Viton | EPDM is on request | |
| Weight | 0.15 – 0.3 kg (depending on pressure connection and electrical connection) | ||
| Pressure connection | G 1/4″, G 1/2″, 1/4″ NPT, 1/2″ NPT, M20 × 1.5, M14 × 1.5 | Others are on request | |
| Electrical connection | DIN43650, Cable outlet, LED display, M12 × 1 | Others are on request | |
Drawings
Electrical connector and housing (Dimensions in mm)
Pressure connection (Dimensions in mm) | Contact us for more options
 |
 |
 |
 |
||||
|---|---|---|---|---|---|---|---|
| G 1/4 inch | L=16.5 mm | 1/8 in NPT | L=13 mm | G 1/8 inch | L=13 mm | G 3/4 inch | L=18.5 mm |
| G 1/2 inch | L=16.5 mm | 1/4 in NPT | L=15 mm | M 10 x 1 | L=13 mm | ||
| M 14 x 1.5 | L=16.5 mm | 1/2 in NPT | L=15 mm | 7/16-20 UNF | L=15 mm | ||
| M 20 x 1.5 | L=16.5 mm | 9/16-18 UNF | L=15 mm | ||||
Electrical Connections
Data Sheet
File Download
