X111 Linear Position Sensor

The intrinsically safe X111 is ATEX and IECEx approved for use in potentially explosive gas/vapour atmospheres. This heavy-duty version of the X101 sensor with a stronger 12.6mm 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, high-accuracy 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 X111 provides a linear output proportional to displacement. Each sensor 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 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. Environmental sealing is to IP65 or IP67, depending on selected cable or connector options.

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.

 

Description

Positek X111 Rugged Stand Alone Linear Position Sensor is intrinsically safe. ATEX and IECEx approved for use in potentially explosive gas/vapour atmospheres. This heavy-duty version of the X101 sensor with a stronger 12.6mm 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, high-accuracy 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 X111 Rugged Stand Alone Linear Position Sensor provides a linear output proportional to displacement. Each sensor 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 ATEX 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. Environmental sealing is to IP65 or IP67, depending on selected cable or connector options.

All of Positek’s position sensors are manufactured to the highest quality and use our very own patented non-contact technology. This helps to ensure the highest levels of accuracy and reliability, even in the harshest of environments. Every position sensor that Positek manufactures uses their inductive sensor technology to ensure high-precision results, and is fully customisable to meet the unique requirements of your business.

With over 25 years’ experience as a sensor manufacturer and using our onsite production facility, Positek has the flexibility to manufacture and customise any industrial position sensor, including tilt sensors and inclinometers, to any size or specification.

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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 adjustment J+Z601
Connector - Radial, IP67, M12 4 pin K
Cable with M12 gland Axial, IP67 L (3 core cable)
LQ (5 core cable)
More details
Cable with short gland Axial, IP67 M (3 core cable)
MQ (5 core cable)
More details
Cable with PG9 gland Radial, Gland, IP67 I (3 core cable)
IQ (5 core cable)
More details
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 I/IQ e.g. L200 for 200cm cable from axial cable gland

 

Mounting Thread Size Options

Option Option Code
M8 rod eye on body (only with option "I" or "K") N
Body clamps, 1 pair (see drawing) P
Body clamps, 2 pairs (see drawing) P2
M8 rod eye on push rod U

 

Push Rod Options

Option Option Code
Spring loaded (extended) (up to 300mm stroke - for longer strokes please contact us) R
Spring loaded (retracted) (up to 300mm stroke - for longer strokes please contact us) S
Dome end on push rod (only with option "R") T
Non-captive push rod V

 

<+/-0.1% FSO Linearity error (10mm minimum stroke length) Option Code
Z650

Intrinsic Safety

ATEX/IECEx approval

The sensor is ATEX/IECEx approved to:
Ex II 1G
Ex ia IIC T4 GA (Ta = -40°C to +80°C).
This designates the sensor as belonging to; Group II: suitable for all areas except mining, Category 1 G: can be used in areas with continuous, long or frequent periods of exposure to hazardous gas (Zone 0). Protection class ia, denotes intrinsically safe for all zones. Apparatus group IIC: suitable for IIA to IIC explosive gas. Temperature class T4: maximum sensor surface temperature under fault conditions 135°C. Ambient temperature range extended to -40°C to 80°C. Approval only applies to the specified ambient temperature range and atmospheric conditions in the range 0.80 to 1.10 Bar, oxygen <=21%.

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 (Axial version) Measurement length + 163mm
Body Length (Radial version) Measurement length + 186mm
Push Rod Extension Measurement length + 7mm
Travel Any stroke from 0-5mm to 0-800mm (e.g. 305mm)
Independent Linearity <±0.25% up to 450mm
<±0.50% over 450mm
<±0.1% up to 450mm 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

 

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 IP65 (connector) / IP67 (cable)
Electrical Connections Screened cable or integral connector