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High Precision 0.3 deg Accuracy Gyrocompass North Finder with RS422 Interface for Underground Mining

Name: High Precision 0.3 deg Accuracy Gyrocompass North Finder with RS422 Interface for Underground Mining
Brand: Shenzhen Fire Power Control Technology Co., LTD
SKU: NF701A
Price: 8,750.00 USD
Availability: InStock

Brand Name:	Firepower
Model Number:	NF701A

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

ISO 9001:2015, CE, RoHS

North Finding Accuracy:

<= 0.3 Deg (NF701A)

North Finder Dimension:

115 X 90 X 110mm

Output:

RS422

Horizontal Accuracy (1 Sigma):

<= 0.05 Deg

Azimuth Resolution:

<= 0.5 Deg

Weight:

<= 2 Kg

Highlight:

fiber optic gyro north finder

mining tunnel boring directional survey

0.3 deg accuracy NF701A seeker

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

Tags:

Accelerometer Gyro Sensor

IMU Accelerometer Gyro

Quartz Flexure Accelerometer

Fiber Optic Gyro

Inertial Navigation System

Gyro North Finder

Magnetometer Sensor

Accelerometer Gyro Sensor

IMU Accelerometer Gyro

Quartz Flexure Accelerometer

Fiber Optic Gyro

Inertial Navigation System

Gyro North Finder

Magnetometer Sensor

products details

High Precision 0.3 deg Accuracy Gyrocompass North Finder with RS422 Interface for Underground Mining

High Precision 0.3 deg Accuracy Gyrocompass North Finder with RS422 Interface for Underground Mining

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