Short Stroke Linear Position Sensor

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The sensor is ATEX approved to II 1G EEx ia IIC T4 (Ta = -40°C to +80°C). This designates the sensor as belonging to; Group II: suitable for all areas except mining, Category 1 G: can be used in areas with continuous, long or frequent periods of exposure to hazardous gas (Zone 0). Protection class ia, denotes intrinsically safe for all zones. Apparatus group IIC: suitable for IIA to IIC explosive gas. Temperature class T4: maximum sensor surface temperature under fault conditions 135°C. Ambient temperature range extended to -40°C to 80°C.

Intrinsically safe sensors must be used with a galvanically isolated barrier with safety parameters not exceeding:- Ui: 11.4V, Ii: 0.46A, Pi: 0.51W. Sensor can be installed with a cable length up to 150m maximum from the barrier, capacitance and inductance can be up to:- Capacitance: 550 nF max, Inductance: 99 µH max.

Approved barriers are available from Positek; there is a choice of 0.5-9.5V or 4-20mA transmission outputs. The sensor is calibrated to suit the selected barrier transmission output.

any stroke from 10 mm to 50mm(e.g., 35mm)

<±0.25% at 20°C

<±0.01%/°C Gain & <±0.01%FS/°C Offset

<±0.75%/FSO

Infinite

<0.02% FSO

>10KHz (-3dB)

Operating: -40 to +80°C
Storage: -40 to +125°C

Susceptibility: EN 61000-6-2
Radiated: EN 61000-6-3

IEC 68-2-6: 10g

IEC 68-2-29: 40 g

IP65(connector) / IP67(cable)

35mm

Measurement length + 71.3mm

Measurement length + 55mm

6 mm

Refer to drawings. Other options are available.

350,000 hrs 40°C Gf

Screened 3 core cable or integral connector

See drawing.