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Trafag AG sensors & controls
PRESSURE TRANSMITTER NAH 8253

PRESSURE TRANSMITTER NAH 8253

Product catalog summary

Overview: The document is a technical datasheet for the NAH 8253 pressure transmitter by Trafag, a Swiss company specializing in high-quality sensors and monitoring instruments. The transmitter is designed for various applications including test benches, railways, machine tools, hydraulics, and process technology.

Key Features:

Smallest design with accuracy classes of 0.1%, 0.15%, and 0.3%.
Excellent temperature resistance and capability for both relative and absolute pressure measurement.
Optional dielectric strength of 500 VAC, compliant with EN 50155 for railways.

Technical Specifications:

Measuring principle: Thin-film-on-steel.
Accuracy at 25°C: Typically ±0.3% FS, ±0.15% FS, ±0.1% FS.
Measuring range: 0 to 2.5 bar up to 0 to 600 bar (0 to 30 psi up to 0 to 7500 psi).
Media and ambient temperature range: -40°C to +125°C.
Output signals: 4 to 20 mA, 0 to 5 VDC, 1 to 6 VDC, 0 to 10 VDC, 0.5 to 4.5 VDC ratiometric.

Ordering Information: The type code 8253.XX XX XX XX XX XX specifies various configurations including measuring range, pressure connection, electrical connection, and output signal. Extended overpressure and customized pressure ranges are available upon request.

Mechanical and Environmental Data:

Sensor and pressure connection materials: AISI630 for ≤250 bar, AISI304 for >250 bar.
Housing material: AISI304.
Sealing: FKM 70 Sh.
Protection: Minimum IP65, with options for IP67.
Vibration resistance: 40 g (20-2000 Hz), Shock resistance: 100 g / 11 ms.

Accuracy and Stability:

Long-term stability: < ±0.1% FS per year at +25°C.
Temperature error band (TEB) and non-linearity hysteresis (NLH) values are provided for different accuracy classes.

Additional Information: The document includes links to further resources such as data sheets, instructions, and flyers available on Trafag's website.

Catalog excerpts

Swiss based Trafag is a leading international supplier of high quality sensors and monitoring instruments for measurement of pressure and temperature. Features ■ Test benches ■ Railways ■ Machine tools ■ Hydraulics ■ Process technology ■ Smallest design ■ Accuracy classes 0.1 %, 0.15 %, 0.3 % ■ Excellent temperature resistance ■ Relative and absolute pressure measurement ■ Optional: Dielectrical strength 500 VAC, meets EN 50155 (Railways) Subject to change Data sheet H72300v 08/2020 Trafag sensors & controls Switzerland trcifciq sensors controls

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Relative pressure, accuracy: 0.3 % Absolute pressure, accuracy: 0.1 % 4) 44 Pressure connection Electrical Male electrical connector, industrial standard (contact distance 9.4 mm), Mat. PBT connection Male electrical connector M12x1,4-pole, Mat. PBT Male electrical connector M12x1,5-pole, Mat. PBT Male electrical connector MIL-C 26482, 6-pole, metal Cable Mat. EPD Raychem FDR25, IP67, 4 x 0.2 mm2 7) Output Signal output Load resistance I (supply) H72300v page 2/6 trofaq sensors ^^controls

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11 Extended overpressure as well as customized pressure ranges upon request 2) Measuring accuracy 0.3 % 3) Only for relative pressure 4) Max. allowable pressure range 40 bar 5) Only with output 19 6) Only for pressure connections 17, 20, 30, 31,42 and 61 7) Upon request Identical construction with higher/lower specifications: Data sheet No. H72250, H72301 page 3/6 trofaq sensors ^^controls

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H72300v page 4/6 trofaq sensors ^^controls

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trofaq sensors ^^controls

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max.--typ.- □ TEB (-25...+85) Temp. (°C) max---typ--□ TEB (-25...+ 85) Temp. (°C) redblack 8253 .xx.xxxx.xx. 19 [ | © Us (pos. Supply)—> -© us (neg. Supply)—> <£) earth/housing 8253 .xx.xxxx.xx. red green black * Provided female ^tecrtEtctopibLigitsumtadnetecoadi^gdtrnjptsJrijnetfinrcStions ** Ventilation via male electric plug/cable end trofaq sensors ^^controls

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PRESSURE TRANSMITTER NAH 8253

PRESSURE TRANSMITTER NAH 8253

Catalog excerpts

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