G112 Linear Inductive Position Sensor

Compact, non-contact position sensor with intrinsically safe design for hazardous gas/vapour environments. Ideal for OEMs in tough industrial applications.

Key features

Intrinsically safe for hazardous areas (Class I, Zone 0)
Compact 19 mm stainless steel body, IP67 sealed
Factory-calibrated travel range from 5 mm to 50 mm
Non-contact inductive technology for long life
High EMC protection and vibration resistance
Infinite resolution and high repeatability

Performance highlights G112 Linear inductive position sensor

The G112 is a high-precision, intrinsically safe linear position sensor using inductive technology. It provides a ratiometric analog output (0.5–4.5V) proportional to the calibrated displacement. With outstanding repeatability, low noise (<0.02% FSO), and a high-frequency response (>10 kHz), it ensures stable and accurate measurements across a wide temperature range (-40°C to +80°C).

Usage conditions

Certified for use in Class I, Zone 0 / Division 1 hazardous gas/vapour atmospheres (Ex ia IIC T4 Ga), the G112 is designed for use in demanding environments. Its stainless steel housing is sealed to IP67 and resistant to shock (40 g) and vibration (10 g), making it ideal for both indoor and outdoor use (with proper protection).

Possible applications

Gauge head positioning systems
Scientific test setups in explosive environments
OEM integration for hazardous areas
Precision displacement measurement in process industries
Downhole tools or hydraulic cylinders

Advantages of choosing this product

Unlike traditional contact-based sensors, the G112 offers wear-free, long-lasting operation thanks to its inductive principle and spring-loaded plunger. It is CSA approved, easy to install, and supports both 3-wire and 5-wire configurations. Althen can custom calibrate the sensor travel to specific application needs, supporting OEM requirements.

Other important features

EMC compliance: EN 61000-6-2 / EN 61000-6-3
Independent linearity: ≤ ±0.25% FSO @ 20°C
Temperature coefficient: < ±0.01%/°C
Shock: 40 g (IEC 68-2-29)
Vibration: 10 g (IEC 68-2-6)
MTBF: 350,000 hrs at 40°C
Galvanic isolation amplifier recommended: G005

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