M101 Stand Alone Linear Position Sensor
ATEX & IECEx approved intrinsically safe sensors for hazardous mining environments
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: M5 rod eyes, body clamps or M5 threads
Spring loaded pushrod option available
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 M101 is ATEX and IECEx approved for use in potentially explosive gas/vapour, dust atmospheres and mining environments. It is designed for industrial and scientific feedback applications and is ideal for OEMs seeking good sensor performance for arduous applications in hazardous areas.
The unit is highly compact and space-efficient, being responsive along almost its entire length. The M101, like all Positek sensors, 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 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 M5 rod eye bearings and body clamps. The push rod can be supplied free or captive, with female M5 thread, an M5 rod eye, or dome end, Captive push rods can be sprung loaded, in either direction, on sensors up to 300mm of travel. The M101 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.
Intrinsically Safe
| ATEX/IECEx Approval | This sensor is ATEX/IECEx approved to: Gas: Dust: 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 (Axial Version) |
Measurement length +163mm |
| Probe Length (Radial Version) |
Measurement length +186mm |
| Push Rod Extension |
Measurement length +9mm |
| Push Rod Outside Diameter |
9.5mm |
| 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% available on request |
| Temperature Coefficient |
<±0.01%/°C Gain & <±0.01%FS/°C Offset 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 |
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 Axial IP67 M12 4 pin |
J |
| Connector Radial IP67 M12 4 pin | K |
| Cable with axial M12 gland, IP67 | L (3 core cable) LQ (5 core cable) (click for more information) |
| Cable with axial short gland, IP67 | M (3 core cable) MQ (5 core cable) (click for more information) |
| Cable with PG9 gland Radial, Gland, IP67 | I (3 core cable) IQ (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 I/IQ e.g. L200 for 200cm cable from axial cable gland |
Mounting Options
| Option |
Option Code |
| M5 rod eye on body (only with option "I" or "K") |
N |
| Body clamps (1 pair) |
P |
| Body clamps (2 pairs) |
P2 |
| M5 rod eye on push rod |
U |
Push Rod Options
| Option |
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 (≥10mm and ≤400mm stroke length) | Option Code Z650 |
Click Here for approved Galvanic Isolation Amplifier Options
| Galvanic Isolation Amplifier |
Click for PDF |
| Outline |
Click for PDF Request AutoCAD Drawing |
| Datasheet |
Click for PDF |
| Installation Sheet |
Click for PDF |
