M115 Rugged submersible stand-alone linear position sensor
Heavy-duty and intrinsically safe linear position sensor designed for submerged applications in mining and hazardous environments. Built for durability and precision, even under high vibration or deep water.
Key features
- ATEX / IECEx / UKEX approved for mining and hazardous areas (Ex I/II M1/1GD)
- Robust 316 stainless steel construction with IP68 10bar/IP69K sealing
- Travel range from 5 mm up to 800 mm, factory calibrated
- Strong 12.6 mm push rod with optional rod eye, magnetic tip or dome end
- High linearity (±0.25% FSO up to 450 mm), infinite resolution
- Five-wire connection recommended for long cable runs (up to 1000 m)
Performance highlights
The M115 linear position sensor offers high precision and repeatability in harsh environments. Its non-contact inductive technology eliminates mechanical wear, while its strong construction and EMC protection ensure long-term performance. The sensor delivers a linear analog output proportional to displacement, calibrated to customer requirements between 5 mm and 800 mm.
Usage conditions
Designed for full submersion, the M115 is IP68 sealed to 10 bar and IP69K rated. It withstands operating temperatures from -40°C to +80°C and offers stable performance even under heavy vibration. This model is ideally suited for horizontal mounting in demanding environments.
Possible applications
- Underground and open-pit mining equipment
- Hydraulic and pneumatic actuators
- Subsea control systems
- Heavy-duty industrial machinery
- Drilling and tunneling equipment
Advantages of choosing this product
With its ATEX, IECEx and UKEX certifications, the M115 ensures safe operation in potentially explosive gas, dust and mining environments. The rugged 316 stainless steel design offers long service life, while optional configurations—like spring-loaded rods or custom cable lengths—make it adaptable to specific use cases.
Other important features
- Intrinsically safe electronics (EX07 system)
- Optional spring-loaded push rod (extend or retract)
- Custom body fittings and rod configurations
- 3- or 5-core cable options up to 150 m
- Compatible with X005 galvanic isolation amplifier
Do you need this sensor for your next project?
Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.
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Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.
Talk to an expertTechnical Specifications
Specification | Value |
---|---|
Body diameter | 35 mm |
Body length (Axial) | Calibrated travel + 168 mm |
Body length (Radial) | Calibrated travel + 189 mm |
Push rod extension | Calibrated travel + 7 mm, Ø12.6 mm |
Linearity (≤450 mm) | ≤ ±0.25% FSO @ 20°C |
Linearity (>450 mm) | ≤ ±0.5% FSO @ 20°C |
Temperature coefficients | < ±0.01%/°C Gain & < ±0.01%FS/°C Offset |
Frequency response | > 10 kHz (-3 dB) |
Resolution | Infinite |
Noise | < 0.02% FSO |
Operating temperature | -40°C to +80°C |
Storage temperature | -40°C to +125°C |
Sealing | IP68 10bar / IP69K |
Intrinsic safety certifications | Ex I/II M1/1GD, Ex ia IIC T4 Ga, Ex ia IIIC T135°C Da, Ex ia Ma |
Sensor input parameters (no cable) | Ui: 11.4V, Ii: 0.20A, Pi: 0.51W, Ci: 1.16µF, Li: 50µH |
Sensor input parameters (with cable) | Ci: 1.36µF, Li: 860µH (for 1 km cable) |
Cable length | Up to 1000 m (≤200 nF, ≤810 µH total) |
MTBF | 350,000 hrs @ 40°C Gf |
Output | 0.5 – 4.5 V (ratiometric with supply) |
Supply voltage | +5 VDC (4.5 – 5.5 V) |
Load resistance | 5 kΩ minimum |
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