They are available in many different designs to suit pressure and electrical connections, measuring procedures, electrical output signals, and certifications (CE, EX, rail, and ship).
About Pressure Transmitters
Pressure transmitters are electronic pressure gauges and are used to measure and monitor pressure. The term pressure transmitter is also often used for pressure transducers or pressure sensors. However, this is not a synonym, since the term pressure sensor in the narrower sense only describes a part of the pressure transmitter.
Descriptions of Trafag NSL 8257 Low Pressure Transmitter
The very compact NSL low-pressure transmitter is the only pressure transmitter in the market with thin-film-on-steel-membrane and pressure ranges down to 0 … 200 mbar. This combination allows also for low-pressure ranges and accurate measurements with excellent long-term stability. Through the extraordinarily high burst pressures up to 125 times nominal pressure, the NSL is the first choice for critical applications.
Main Features of NSL 8257 Low Pressure Transmitter
- Smallest design
- Relative or absolute pressure measurement
- Excellent temperature resistance
- Improved vibration resistance
- Completely welded steel sensor system without additional seals
Technical Data of NSL 8257
| More Information | |
| Product code | 8257 |
| Name | NSL |
| Designation | Low Pressure Transmitter |
| Product category | Pressure transmitters |
| Measuring range | 0 … 0.2 to 0 … 2.5 bar 0 … 3 to 0 … 30 psi |
| Measuring principle | Thin-film-on-steel |
| Applications | Engine manufacturing Machine tools Process technology Shipbuilding Test benches Water treatment |
| Approval / conformity | DNV-GL |
| Accuracy @ 25°C typ. | 0.15 … 0.8 % FS typ. |
| Output signal | 4 … 20 mA, 0 … 5 VDC, 0 … 10 VDC, 0.5 … 4.5 VDC ratiometric |
| Electrical connections | Industrial standard, contact distance 9.4 mm; M12x1; MIL-C 26482 |
| Pressure connections | G1/4″ m; 1/4″ NPT m; 1/4″ NPT f; 9/16″-18UNF m, SAE6 (J1926) |
| Media temperature | -40°C … +125°C |
| Ambient temperature | -40°C … +125°C |
Source: trafag.com
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