M115 Waterproof (IP68) and Rugged 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: M8 rod eyes, body clamps or M8 threads
Spring loaded pushrod option available
Sealed to IP68 10bar, 100msw, 145psi
< ±0.25% up to 450mm
< ±0.5% over 450mm
< ±0.1 % option available
Temperature range: -40°C to +80°C
The intrinsically safe M115 is a heavy-duty waterproof ATEX and IECEx mining approved version of the M114 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 are to be mounted horizontally between rod eyes. It remains an affordable, durable, high-accuracy position sensor designed for applications where the sensor would be completely submerged during normal operation, up to a pressure of 10Bar. The unit is highly compact and space-efficient, being responsive along almost its entire length. Like all Positek sensors, the M115 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 stainless steel M8 rod eye bearings and body clamps. The push rod can be supplied free or captive, with female M8 thread, or an M8 stainless steel rod eye. The M115 also offers a wide range of mechanical and electrical options, environmental sealing is to IP68 10Bar.
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.
This sensor is ATEX/IECEx approved to:
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.
|Body Length (Axial Version)||See drawing|
|Probe Length (Radial Version)||See drawing|
|Push Rod Extension||See drawing|
|Push Rod Outside Diameter||12.6mm|
|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|
|Operating||-40 to +80°C|
|Storage||-40 to +125°C|
|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||IP68 10bar, 150psi, 100m|
|Electrical Connections||Screened cable|
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:
Factory set to any length from 0-5mm to 0-800mm in increments of 1mm. For example, if your application requires 10" (254mm) measurement, then Positek will manufacture the sensor specifically for this length. The mechanical length and calibration will be set up for 254mm.
|Cable with PG9 gland Axial, Gland IP68
||L (3 core cable)
LQ (5 core cable)
(click for more information)
|Cable with PG9 gland Radial, Gland IP68||I (3 core cable)
IQ (5 core cable)
(click for more information)
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 3 core cable from axial cable gland
|M8 rod eye on body (only with option "I")
|M8 rod eye on push rod
Push Rod Options
|Spring loaded (extended) (up to 300mm storke - for longer strokes please contact Positek)
|Spring loaded (Retracted) (up to 300mm storke - for longer strokes please contact Positek)
|Dome end on push rod (only with option "R")
|Non-captive push rod
|<+/-0.1% FSO Linearity error (≥10mm and ≤400mm stroke length)||Option Code