Overview
Explosion-proof Parallel absolute encoders SAS-M78 are designed for hazardous industrial environments where flammable gases, vapors, or combustible dust may be present. These encoders provide deterministic parallel interface feedback, ensuring real-time absolute position data for PLCs, motion controllers, and industrial automation systems.
The 78 mm reinforced housing offers mechanical robustness and complies with certified explosion-proof standards, making it suitable for petrochemical, chemical, oil & gas, and mining applications.
Key Functional Features
- Parallel absolute output: deterministic single-turn and multi-turn position feedback
- Single-turn resolution: up to 21 bits
- Multi-turn capability: up to 14 bits
- Stable operation under vibration, shock, and electrical noise
- Explosion-proof housing certified for hazardous areas
- Environmental protection: IP65 / IP67
These features ensure reliable and precise position feedback in classified industrial zones.
Mechanical Protection and Mounting
SAS-M78 encoders feature reinforced standard housing suitable for hazardous environments:
- Clamp flange – secure, repeatable installation
- Blind hollow shaft flange – allows direct integration on existing shafts
The housing and sealed cable entries prevent ignition of surrounding flammable atmospheres, ensuring safe operation.
Shaft Interface Options
- Solid Shaft – recommended when shaft alignment is controllable, providing a stable mechanical reference
- Blind Hollow Shaft – suitable for retrofit or space-constrained installations
Correct shaft interface selection is essential for both explosion-proof compliance and accurate position feedback.
Environmental Suitability
- Indoor and outdoor hazardous industrial environments
- Resistant to continuous vibration and mechanical stress
- Rated for industrial temperature ranges
- Protected against dust, moisture, and contaminants
Proper grounding, cable routing, and adherence to hazardous-area installation standards are critical for safe and reliable operation.
Typical Applications
- Chemical and petrochemical process machinery
- Mining equipment in combustible dust zones
- Oil and gas production and handling systems
- Hazardous-area conveyor and material handling equipment
Explosion-proof SAS-M78 encoders provide deterministic parallel feedback crucial for motion control, monitoring, and safety interlocks.
Engineering Selection Summary
SAS-M78 explosion-proof Parallel absolute encoders combine deterministic parallel interface feedback with certified reinforced housing. Engineers should carefully consider shaft interface, flange type, and environmental classification to ensure long-term reliability and compliance with hazardous-area standards.
Technical Reference
For detailed specifications and mechanical drawings, refer to the corresponding product documentation during final selection.
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