Precont® S20
Delivery Time: not specified
Polysilicon or thin-film sensor with metal diaphragm, EX-pressure switch
- 2-wire 4-20mA with LED
- Measuring range up to 1000bar
- ATEX-approval
Description
The Precont® S20 is used in all fields of proceeding and process technique.
The excellent characteristics like pressure strength, high chemical resistance, corrosion protection and insensitivity against temperature shocks allows the use in the hardest applications for the measurement of gases, steams and liquids.
The polysilicone resp. thin-film measurement sensor guarantees highest pressure ranges, good reproduceability and hysteresis, an up to 4 times overload resistance and a good long term stability.
| Auxiliary power supply | |
|---|---|
| output signal 4…20mA (with display) |
14,5 V…45 V DC 14,5 V…30 V DC (with Ex variant) |
| output signal 4…20mA (without display) |
10,5 V…45 V DC 10,5 V…30 V DC (with Ex variant) |
| output signal 0…10V | 14,5 V…45 V DC 14,5 V…30 V DC (with Ex variant) |
| Supply current | |
|---|---|
| 2-wire 4…20mA | ≤ 22mA (PNP-switching outputs in neutral) |
| 3-wire 0…10V | ≤ 10mA (PNP-switching outputs in neutral) |
| 2xPNP-switching output | |
|---|---|
| Function | PNP-switching on +Vs |
| Output current | ≤ 250mA current limited short circuit protected |
| Measurement accuracy | |
|---|---|
| Characteristics deviation | ≤ ±0,15 / 0,5% FS |
| Long term drift | ≤ ±0,2% FS / year not cumulative |
| Temperature deviation | ≤ ±0,20% FS / 10 K (Zero / Span) |
| Materials | |
|---|---|
| Membrane (medium contact) |
≥ 40 bar Steel 1.4571/316Ti < 40 bar Steel 1.4542/630 resp. 1.4534 |
| Process connection (medium contact) |
Steel 1.4435/316L |
| Connection housing | CrNi-steel / PBT polybutylene terephthalate / POM – polyoxymethylene (Delrin®) |
| Gaskets (medium contact) |
FPM – fluoroelastomer (Viton®) EPDM – ethylene-propylene-diene monomer silicone |
| Environmental conditions | |
|---|---|
| Ambient temperature | -40°C…+85°C |
| Process temperatures | – 40°C…+100°C resp. +125°C |
| Process pressure ranges | – 1 bar …1000 bar |
| Turn-Down | 30:1 |
| Schutzart | IP65 / IP67 (EN/IEC 60529) |
