Position Sensors For Potentially Explosive Atmospheres

Sensors For Gas Atmospheres Sensors for Mining Atmospheres Non- Intrinsically Safe

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E111 Rugged Stand Alone Linear Position Sensor
Intrinsically Safe sensors for Hazardous DUST atmospheres

Available in any travel from 50mm to 600mm.

   
     

Specification

Intrinsic Safety  
ATEX approval

The sensor is ATEX approved to Ex II 1GD EEx ia IIC T4 Ex iaD 20 T135°C (Ta = -40°C to +80°C).  This designates the sensor as belonging to; Group II: suitable for all areas except mining, Category 1 GD: can be used in areas with continuous, long or frequent periods of exposure to hazardous gas (Zones 2 to 0) and dust (Zone 20).

Gas:

Protection class ia, denotes intrinsically safe for all zones.

Apparatus group IIC: suitable for IIA, IIB and IIC

explosive gases.

Temperature class T4: maximum sensor surface

temperature under fault conditions 135°C.

Dust:

T135°C: maximum sensor surface temperature under

fault conditions 135°C.

Ambient temperature range extended to -40°C to

+80°C.

Galvanic Barrier

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.

Sensor Specification  
Dimensions  
Body Diameter
35mm
Body Length (Axial Version)
Measurement length + 163mm
Body Length (Radial Version)
Measurement length + 186mm
Push Rod Extension
Measurement length + 7mm

Push Rod Outside Diameter

12.7mm

Travel

any stroke from 50 mm to 600mm (eg 305mm)

Independant Linearity

<±0.25% up to 450mm <±0.50% over 450mm at 20°C

Temperature Coefficient

<±0.01%/°C Gain & <±0.01%FS/°C Offset

Typical Overall Accuracy

<±0.75% FSO  

Resolution

Infinite

Noise

<0.02% FSO

Frequency Response

>10KHz (-3dB)

 

Temperature Limits

 

Operating

-40 to +80°C

Storage

-40 to +125°C

EMC Performance

 

Susceptibility

EN 61000-6-2

Radiated

EN 61000-6-3

 

Vibration

IEC 68-2-6: 10g

Shock

IEC 68-2-29: 40 g

MTBF

350,000 hrs 40°C Gf

Sealing

IP67

 

Electrical Connections

Screened 3 core cable or integral connector

Detailed Dimensions

Refer to drawings below. Other options available.

Barrier

 

Outline

  Request AutoCAD Drawing

 

 

See Datasheet
 
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  Positek Limited

L6 The Link   Andoversford Industrial Estate   Cheltenham   Glos GL54 4LB   UK
Tel: +44 (0)1242 820027   Fax: +44 (0)1242 820615   sales@positek.com

Registered in England Number: 2746707 - VAT Registration Number: GB 618 0533 56