Sensors For Gas Atmospheres Sensors for Dust Atmospheres Galvanic Isolated Amplifier Non- Intrinsically Safe

 

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M117 Slim-line Linear Position Sensor
Intrinsically Safe sensors for Hazardous MINING environments

Available in any travel from 10mm to 300mm.

Specification

Intrinsic Safety

 

ATEX approval

This sensor is ATEX approved to I/II M1/1GD EEx ia IIC T4 Ex iaD 20 T135°C (Ta = -40°C to +80°C).

This designates the sensor as belonging to; Groups I and II: suitable for all areas (including mining), Category M1/1 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), equipment remains energised.

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 Isolation Amplifier

Intrinsically safe sensors must be used with a galvanically isolated amplifier with safety parameters not exceeding:- Ui: 11.4V, Ii: 0.2A, Pi: 0.51W.  Sensor can be installed with a cable length up to 1000m maximum from the amplifier, capacitance and inductance can be up to:- Capacitance: 550 nF max, Inductance: 99 μH max.

Approved amplifiers are available from Positek; there is a

choice of 0.5-9.5V or 4-20mA transmission outputs.

Sensor Specification

 

Dimensions

 

Body Diameter

19mm

Body Length (Axial Cable Version)

Measurement length + 134mm

Body Length (Axial Connector Version)

Measurement length + 134mm

Body Length (Radial Cable Version)

Measurement length + 139mm

Body Length (Radial Connector Version)

Measurement length + 142mm

Travel

any stroke from 10 mm to 300mm (eg 205mm)

Independant Linearity

<±0.25% @ 20°C

Temperature Coefficient

<±0.01%/°C Gain & <±0.01%FS/°C Offset

Output characteristics

 

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.

Galvanic Isolation Amplifier

 

Outline

  Request AutoCAD Drawing

 

 

 

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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
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