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.

Push Rod Outside Diameter

Travel

Independant Linearity

Temperature Coefficient

Typical Overall Accuracy

Resolution

Noise

Frequency Response

Temperature Limits

Operating

Storage

EMC Performance

Susceptibility

Radiated

Vibration

Shock

MTBF

Sealing

Electrical Connections

Detailed Dimensions

Barrier

Outline