M100 Cylinder Linear Position Sensor


Intrinsically Safe sensors for Hazardous MINING environments
Available in any travel from 5mm to 800mm.

The intrinsically safe M100 LIPS® (Linear Inductive Position Sensor) is ATEX and IECEx approved for use in potentially explosive gas/vapour, dust atmospheres and mining environments.

It is designed for demanding hydraulic or pneumatic cylinder position feedback applications where service life, environmental resistance and cost are important and is ideal for OEMs seeking good sensor performance for arduous applications in hazardous areas.

Overall performance, repeatability and stability are outstanding over a wide temperature range. The unit is highly compact and space-efficient, being responsive along almost its entire length.

Like all Positek sensors, the M100 provides a linear output proportional to displacement. Each unit is supplied with the output calibrated to the travel required by the customer, from 20 to 600mm and with full EMC protection built in. The sensor is very rugged, being made of stainless steel with an inert fluoropolymer-sheathed probe and stainless steel target tube. The sensor is easy to install in cylinders and has a range of mechanical options. Environmental sealing is to IP67 .

 

Positek intrinsically safe sensors are designed to be used with a galvanically isolated amplifier .  Approved amplifiers are available from Positek; there is a choice of 0.5-9.5V or 4-20mA transmission outputs.

The sensor can be installed with a cable length up to 1km between the amplifier and the sensor.


Specification

Intrinsic Safety

 

ATEX/IECEx approval

This sensor is ATEX/IECEx approved to I/II M1/1GD Ex ia IIC T4 Ga Ex ia 111C 20 T135°C Da (Ta = -40°C to + 80°C ), Ex ia I Ma.

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, cable capacitance and inductance can be up to:- Capacitance: 200 nF max, Inductance: 810 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

35mm

Body Length (to seal face)

43mm

Probe Length (from seal face)

Measurement length + 58mm

Target Tube Length

Measurement length +30mm, ID 7.7mm, OD 9.45mm

 

 

Travel

any stroke from 5mm to 800mm (eg 305mm)

Independant Linearity

<±0.25% up to 450mm <±0.50% over 450mm at 20°C
<±0.1% up to 400mm available on request

Temperature Coefficient

<±0.01%/°C Gain & <±0.01%FS/°C Offset

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

Target

A non-magnetic target tube is supplied with the sensor. This can be eliminated if the piston rod is made from non-magnetic steel and is drilled to a specified tolerance.

Dimensions

Refer to drawings below.

Galvanic Isolation Amplifier

Click for drawing

Outline

Click for pdf
Request AutoCAD Drawing

Typical Installation in Cylinder

Click for pdf 

Sealing Details

Click for pdf 

Target Details Fitting

Click for pdf 
Datasheet Click for pdf
Installation Sheet Click for pdf


Preferences

Positek offers a range of options for its standard sensors.
Each sensor is manufactured to suit each customer's preferences.
If your requirement is outside the options given below,
Positek can modify/ redesign a sensor to suit your specific requirement.
Standard options are available as below:

 

Measurement range:

Factory set to any length from 5mm to 800mm in increments of 1mm.
For example, if your application requires 10" (254 mm) measurement
then Positek will manufacture the sensor specifically for this length.
The mechanical length and calibration will be set up for 254 mm.


Connector/Cable Options:

Option code
Connector, IP67, M12 - 4 pin.
J
Cable Gland, IP67
L
Cable length - The standard length of cable supplied with a Positek position sensor is 50cm although you can specify any length you require, up to a maximum of 15000cm.
Specified in cm after the L
e.g. L200 for 200cm cable

   

Mounting Thread Size Options:
Option code
M18
T
M20
N
3/4" UNF
P

Target Flange Options (see drawing TG24-11):
Option code
Penny and Giles HLP100
V
Temposonics (M4 fixing)
W
Parker Hannifin Cylinder Version
X

<+/-0.1% FSO Linearity error (<400mm Stroke)
Z650

 

Click Here For Approved Galvanic Isolation Amplifier Options

 

 

Free Design Service

If you need a position sensor that is outside the scope of the above options to suit your installation requirement or specification, Positek will be happy to modify or create a new design to suit your needs


Contact Positek Technical Department - Click Here


 

Get Price


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  Positek Limited

L6 The Link   Andoversford Industrial Estate   Cheltenham   Glos GL54 4LB   UK
Tel: +44 (0) 1242820027   Fax: +44 (0)1242 820615   Email: Sales@Positek.com

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