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H72302

Product catalog summary

Overview: The document provides detailed information about the NSL 8257 low pressure transmitter by Trafag, a Swiss-based company known for high-quality sensors and monitoring instruments. This transmitter is notable for its compact design and ability to measure low pressure ranges with high accuracy and stability.

Applications: The NSL 8257 is suitable for various industries including shipbuilding, engine manufacturing, machine tools, process technology, water treatment, and test benches. It is designed for both relative and absolute pressure measurement and offers excellent temperature and vibration resistance.

Features: Key features include a completely welded steel sensor system without additional seals, thin-film-on-steel-membrane technology, and high burst pressures up to 125 times the nominal pressure, making it ideal for critical applications.

Technical Specifications:

Measuring Principle: Thin film on steel
Temperature Range: -40°C to +125°C
Pressure Range: 0 to 0.2 bar up to 0 to 2.5 bar (or 0 to 3 psi up to 0 to 30 psi)
Output Signal: 4 to 20 mA, 0 to 5 VDC, 0 to 10 VDC, 0.5 to 4.5 VDC ratiometric
Accuracy: Typically 0.15% to 0.8% FS at 25°C
Approvals: GL, DNV, RINA

Ordering Information: The document provides a detailed type code for ordering, specifying pressure ranges, overpressure, burst pressure, and accuracy options. Various pressure connections and electrical connections are available.

Environmental and Mechanical Data:

Media and Ambient Temperature: -40°C to +125°C
Protection: Minimum IP65
Vibration Resistance: 25g (20 to 2000 Hz)
Shock Resistance: 100g/11ms
EMC Protection: Emission EN/IEC 61000-6-4, Immunity EN/IEC 61000-6-2

Accuracy and Stability: The document details accuracy at various conditions, long-term stability, and mounting dependency. It also provides information on the sensor's response to temperature changes and mechanical stress.

Dimensions and Connections: Detailed diagrams and measurements are provided for different configurations of the transmitter, including pressure and electrical connections.

Additional Information: Links to further documentation, instructions, and promotional materials are provided for more in-depth information.

Catalog excerpts

Swiss based Trafag is a leading international supplier of high quality sensors and monitoring instruments for measurement of pressure and temperature. 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 accurate measurements with excellent longterm stability. Through the extraordinary high burst pressures up to 125 times nominal pressure the NSL is the first choice for critial applications. Applications ■ Shipbuilding ■ engine manufacturing ■ machine tools ■ Process technology ■ water treatment ■ Test benches Features ■ Smallest design ■ relative or absolute pressure measurement ■ excellent temperature resistance ■ Improved vibration resistance ■ Completely welded steel sensor system without additional seals Subject to change Data sheet H72302 i 02/2017 Trafag sensors & controls Switzerland sensors controls

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Ordering information/type code Pressure measurement range [bar] Pressure measurement range [psi] Sensor Relative pressure, accuracy: 0.3% 23 Absolute pressure, accuracy: 0.3% 43 Relative pressure, accuracy: 0.15% 4) 21 Absolute pressure, accuracy: 0.15% 4) 41 Electrical Male electrical plug, Industrial standard (contact distance 9.4mm), Mat. PBT connection male electrical plug M 12x1,4-pole, mat. PBT male electrical plug M 12x1,5-pole, mat. PBT page 2/5 trofaq sensors ^^controls

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trofaq sensors ^^controls

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Recommended mounting position (Mounting dependency with 180° rotation see ’Accuracy’)

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Protection / electrical connection IP65*) NSL8257 Output signal 0 earth/housing ^ , ,„vided female connector is mounted according to instructions trofaq sensors ^^controls

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H72302

H72302

Catalog excerpts

All Trafag AG sensors & controls catalogs and technical brochures