Overview
Explosion-proof analog absolute encoders SAS-M78 with 0–10 V / 0–5 V output are designed for use in hazardous industrial environments, including areas with flammable gases, vapors, or combustible dust. The encoders provide deterministic absolute position feedback compatible with standard PLCs, motion controllers, and industrial monitoring systems.
The 78 mm reinforced housing ensures mechanical integrity and compliance with explosion-proof certifications, making these encoders ideal for chemical, petrochemical, oil & gas, and mining applications.
Key Functional Features
- Analog Voltage Output: 0–10 V or 0–5 V for absolute position feedback
- Single-turn resolution: up to 21 bits
- Multi-turn capability: up to 14 bits
- Optional incremental output for hybrid control systems
- Stable analog signal under vibration, shock, and electrical noise
- Explosion-proof housing certified for hazardous areas
- Environmental protection: IP65 / IP67
These features ensure precise and reliable absolute position feedback in classified industrial zones.
Mechanical Protection and Mounting
The SAS-M78 series features reinforced standard housing suitable for hazardous environments:
- Clamp flange – provides secure and repeatable mounting
- Blind hollow shaft flange – allows direct installation onto existing shafts
Reinforced housing and sealed cable entries prevent ignition of surrounding flammable atmospheres.
Shaft Interface Options
- Solid Shaft – recommended when shaft alignment can be controlled, ensuring stable mechanical reference
- Blind Hollow Shaft – suitable for retrofit or space-constrained layouts
Correct shaft interface selection is essential to maintain mechanical stability and explosion-proof compliance.
Environmental Suitability
- Suitable for indoor and outdoor hazardous industrial environments
- Resistant to vibration and mechanical stress
- Rated for typical industrial temperature ranges
- Protected against dust, moisture, and contaminants
Proper grounding, cable routing, and adherence to hazardous-area installation standards ensure safe and reliable operation.
Typical Applications
- Chemical and petrochemical process machinery
- Mining equipment operating in combustible dust zones
- Oil and gas production and handling systems
- Hazardous-area conveyor and material handling equipment
The SAS-M78 series provides deterministic absolute feedback critical for motion control, safety interlocks, and monitoring in hazardous zones.
Engineering Selection Summary
SAS-M78 explosion-proof analog voltage encoders combine reinforced housing with deterministic 0–10 V / 0–5 V output. Engineers should carefully consider flange type, shaft interface, and environmental classification to ensure safety, signal integrity, and long-term reliability.
Technical Reference
For detailed specifications and mechanical drawings, refer to the corresponding product documentation during final selection.
Reference：Explosion-Proof Analog Absolute Encoder SAS-M78 (0–10 V / 0–5 V)
