NAR 8258

Railway Pressure Transmitter

The pressure transmitter NAR 8258 with increased accuracy of 0.3 % was specifically designed for railway vehicles (EN 50155) and has a long-term stable thin-film-on-steel sensor cell. The wide temperature range from -40°C to +125°C and the triple overpressure protection make the NAR 8258 the ideal choice for railway vehicles in rough environmental conditions.

Features

  • Measuring accuracy 0.3 %
  • Optional: Switching output 1 or 2 PNP transistors
  • Excellent long-term stability
  • Dielectrical strength: 710 VDC, meets EN 50155 (Railways)
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Technical Data

Applications

Railways

Category

Pressure transmitters

Accuracy @ 25°C typ.

± 0.3 % FS typ.

Measuring principle

Thin film on steel

Approval / conformity

EN 50155 (Railway)
EN 45545-2 (Fire protection)
EN 61373 (Shock, vibration)
EN 50121-3-2 (EMC)

Vibration

15 g RMS (20...2000 Hz) (EN60068-2-64)
25 g sin (80...2000 Hz), 1 oct./min, (1x @ 25°C) (EN60068-2-6)

NLH @ 25°C (BSL) typ.

± 0.2 % FS typ.

Pressure connections

G1/4" m, G1/4" m (Manometer), 1/4"NPT m, 1/8"NPT m, 7/16"-20UNF SAE J512 f, 7/16"-20UNF SAE4 m, 7/16"-20UNF m, R1/4" m, R1/8" m, M10x1 m, M12x1.5 m (DIN EN ISO 9974-2)

Media temperature

–40°C ... +125°C

Shock

50 g / 11 ms
100 g / 6 ms Male electrical plug M12x1 (EN60068-2-27) 3)

Electrical connections

Industrial standard, contact distance 9.4 mm; M12x1

Long term stability 1 year typ.

< ± 0.1 % FS typ.

Ambient temperature

–40°C ... +125°C

Protection

IP65, IP67

Output signal

4 ... 20 mA,
Switching output: 1 or 2 PNP transistors

TEB typ. @ -25 ... +85°C

± 1.0 % FS typ.

Measuring range

0 ... 6 to 0 ... 600 bar
0 ... 100 to 0 ... 7500 psi