M100 Cylinder Linear Position Sensor

ATEX & IECEx approved intrinsically safe sensors for hazardous mining environments

Linear

This sensor at a glance

Available in any measurement range from 0-5mm to 0-800mm

Longer operating life than a potentiometer

Fast delivery options available

Body Diameter: 35mm

Sensor Mounting: In-cylinder

Sealed to IP67

Independent Linearity:
< ±0.25% up to 450mm
< ±0.5% over 450mm
< ±0.1 % option available

Resolution: Infinite

Temperature range: -40°C to +80°C

The intrinsically safe M100 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 0-5mm to 0-800mm 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.

Intrinsic Safety

ATEX/IECEx Approval

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


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 0-5mm to 0-800mm (e.g. 305mm)
Independent Linearity
<±0.25% up to 450mm
<±0.50% over 450mm at 20°C
<±0.1% up to 400mm available on request
Temperature Coefficient
See Graph
Resolution
Infinite
Noise

<0.02% FSO

Frequency Response

>10KHz (-3dB);


Temperature Limits

Operating
-40 to +80°C
Storage
-40 to +125°C


Other

EMC Susceptibility
EN 61000-6-2
EMC Radiated
EN 61000-6-3
Vibration
IEC 68-2-6: 10g
Shock
IEC 68-2-29: 40g
MTBF
350,000 hrs 40°C Gf
Sealing
IP67
Electrical Connections
Screened 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 specific tolerance.

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 0-5mm to 0-800mm 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
Option Code
Connector - Hirschmann GD series Axial, IP65
J
Connector - Axial IP67, M12 - 4 pin. Without trim adjustment
J + Z600
Connector - Axial IP67, M12 - 4 pin. With trim adjustmentJ + Z601
Cable with short gland Axial, IP67
M (3 core cable)
MQ (5 core cable)
(click for more information)
Cable with M12 gland Axial, IP67
L (3 core cable)
LQ (5 core cable)
(click for more information)
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 15,000cm
Specified in cm after the L/LQ or M/MQ e.g. L200 for 200cm cable from axial cable gland


Mounting Thread Size Options

Option
Option Code
M18
T
M20
N
3/4" UNF
P


Target Flange Options (see drawing TG24-11)

Option
Option Code
Penny and Giles HLP100
V
Temposonics (M4 fixing)
W
Parker Hannifin Cylinder Version
X


<+/-0.1% FSO Linearity error  (≥10mm and ≤400mm stroke length) Option Code
Z650


Click Here for approved Galvanic Isolation Amplifier Options


Galvanic Isolation Amplifier
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Outline
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Request AutoCAD Drawing
Typical Installation in Cylinder
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Sealing Details
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Target Details Fitting
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Datasheet
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Installation Sheet
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