High Precision 0.3 deg Accuracy Gyrocompass North Finder with RS422 Interface for Underground Mining
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
Firepower
Product Description
High Precision Gyrocompass North Finder System for True North Detection and Direction Measurement
The NF701A Fiber Optic Gyro North Finder is a rugged directional survey instrument for underground mining and tunnel boring operations. Its FOG-based north seeking technology provides reliable azimuth data in magnetically noisy underground environments where conventional compasses fail, operating flawlessly from -40 to +70 deg C.
Dimensions
115 x 90 x 110 mm
Technical Specifications
- North seeking time: ≤ 3 minutes
- North seeking accuracy (1 sigma): ≤ 0.3 deg (NF701A); ≤ 0.5 deg (NF701B)
- Horizontal accuracy: ≤ 0.05 deg (1 sigma)
- Circumference: ≤ 0.5 deg (1 sigma)
- Weight: ≤ 2 kg
- Power supply: DC 12V ~ 24V
- Power consumption: 15 W (peak)
- Interface: RS422
- Working mode: Automatic self-check on power-up, controlled north seeking via upper computer
Environmental Requirements
- Operating temperature: -40°C to +70°C
- Storage temperature: -55°C to +85°C
- Humidity: Relative humidity less than 95%
Reliability
- MTBF ≥ 1000 hours
- MTTR ≤ 30 minutes
Ideal Applications
- Tunnel Boring Machine Guidance: Precise heading for TBM navigation in long-distance tunnel projects
- Underground Mine Surveying: Magnetic-free north reference for drift and shaft alignment
- Coal Mine Development: Reliable azimuth data for ventilation shaft and gallery planning
- Subway Construction: Accurate directional control for urban metro tunnel boring
- Hydroelectric Tunnel Projects: North reference for water diversion and penstock tunnel construction
External Plug Configuration (Interface Y50EX-0607TX2)
| Plug Pin Number | Functional Definition |
|---|---|
| a | DC12V ~24V |
| b | DC12V ~24V GND |
| c | TD+ |
| d | TD- |
| e | RD+ |
| f | RD- |
| g | GND |
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Company
Shenzhen Fire Power Control Technology Co., LTD
Location
429, Building A10, Fuhai Information Port, Xinhe Community, Fuhai Street, Shenzhen, Guangdong, China
Contact Person
Caine