I. Product Overview and Basic Parameters
Model and Manufacturer
Model 01075-111 is manufactured by Paiyi (Shanghai) Measurement Technology Co., Ltd., belonging to an older model of encoders specifically designed for the petroleum industry.
It is part of the BEN bus encoder series, supporting multiple industrial protocols (such as SSI, Profibus-DP, CANopen, etc.).
Core Parameters
Parameter Item Specification
Type Single-turn or multi-turn absolute encoder (directly outputs position code, data retention after power loss)
Protection Rating IP54-IP68 (dustproof and waterproof) and IP69K (resistant to high-pressure沖洗), suitable for harsh oilfield environments
Operating Temperature Some models support -40°C to 70°C without additional temperature control equipment
Output Signal Supports multiple outputs: SSI, 4-20mA, Profibus-DP, CANopen, etc.
Resolution Total accuracy up to 24-32 bits (single-turn + multi-turn combination), high-precision positioning
Shaft Size Optional shaft diameters: 6mm, 8mm, 10mm, 12mm, 14mm, 25mm
Mounting Methods Clamping flange, synchronous flange, blind hole clamping, etc., adaptable to different mechanical structures
? II. Technical Principles and Working Characteristics
Absolute vs. Incremental
Absolute encoder (e.g., 01075-111): Each position corresponds to a unique digital code, no need for homering upon startup, no cumulative error, suitable for high-reliability positioning in petroleum drilling.
Incremental encoder: Relies on pulse counting, requires recalibration after power loss, susceptible to interference, commonly used for speed monitoring.
Explosion-Proof and Durable Design
Explosion-proof certification: Housing made of high-strength explosion-proof materials (e.g., stainless steel), internal circuit isolation design to prevent electrical sparks (compliant with petrochemical explosion-proof requirements).
Vibration resistance: Reinforced mechanical structure, adaptable to high-frequency vibration environments of drilling rigs.
Signal Processing
Baud rate and refresh: Default communication baud rate 9600 bit/s (up to 115200 bit/s), refresh cycle approximately 1.5ms, ensuring real-time data transmission.
Anti-interference capability: Push-pull output or differential signals (e.g., TTL long-line驅動), reducing long-distance transmission errors.