M111 Rugged Stand Alone Linear Position Sensor


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


The M111 LIPS® (Linear Inductive Position Sensor) is ATEX and IECEx approved for use in potentially explosive gas/vapour, dust atmospheres and mining environments. This heavy-duty version of the M101 sensor with a stronger 12.7mm push rod, recommended for applications where vibration is an issue or there is a need for longer travel sensors, mounted horizontally, and supported between rod eyes.

It remains an affordable, durable, highaccuracy position sensor designed for industrial and scientific feedback applications. The unit is highly compact and space-efficient, being responsive along almost its entire length.

Like all Positek sensors, the M111 provides a linear output proportional to displacement. Each sensor is supplied with the output calibrated to the travel required by the customer, from 5mm to 800mm and with full EMC protection built in.

The sensor is very robust, the body and push rod being made of stainless steel for long service life and environmental resistance. Overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor is easy to install with mounting options including M8 rod eye bearings and body clamps. The push rod can be supplied free or captive, with female M8 thread, an M8 rod eye, or dome end, Captive push rods can be sprung loaded, in either direction, on sensors up to 300mm of travel. The M111 also offers 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 galvanic isolation amplifiers (X005) 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 sensor and the amplifier.



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 (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 5mm to 800mm (eg 305mm)

Independant Linearity

<±0.25% up to 450mm <±0.50% over 450mm at 20°C
<±0.1% 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

Detailed Dimensions

Refer to drawings below. Other options available.

Galvanic Isolation Amplifier

Click for pdf

Outline

Click for pdf
Request AutoCAD Drawing
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 Axial IP67, M12 - 4 pin.
J
Connector Radial IP67, M12 - 4 pin.
K
Cable Axial Gland IP67
L
Cable Radial Gland IP67
I
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 ir I
e.g. L200 for 200cm cable from axial cable gland


Mounting Options:
Option code
M8 Rod eye on body (only with Option 'I' or 'K')
N
Body clamps (1 Pair)
P
Body clamps (2 Pairs)
P2
M8 Rod eye on push rod
U


Push Rod Options:
Option code
Spring loaded (extended) (up to 300mm stroke)
(for longer strokes please contact Positek)
R
Spring loaded (retracted) (up to 300mm stroke)
(for longer strokes please contact Positek)
S
Dome end on push rod (only with Option 'R')
T
Non captive push rod
V

<+/-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


Back To Top

Home Page Quality | Products | Part Number Coding | Case Studies |

| Help Desk | Enquiries | Distributors | How to find us |

 

   


Company logo

 

Home

Products

Enquiries

How To Buy

Quality

Product Index

Support

ATEX logo

IECEx

iso 9001:2000 logo


  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

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