Manuals+

NOYAFA NF-198

NOYAFA NF-198 GPS Land Meter User Manual

Model: NF-198

1. Introduction

The NOYAFA NF-198 GPS Land Meter is a versatile and high-precision surveying instrument designed for accurate measurement of land area, length, and perimeter. It is ideal for various applications including farm land surveying, job measurement, grassland surveying, slope hill surveying, pond/lake surveying, and geological surveying. This manual provides detailed instructions to help you set up, operate, and maintain your device effectively.

Applications of NOYAFA NF-198 GPS Land Meter
Figure 1: Diverse applications of the NF-198 GPS Land Meter, including farmland, grassland, slope, pond, and geological surveys.

2. Product Overview

2.1 Key Features

  • 2.8-inch large color screen display (320x240 dot matrix) for clear and intuitive viewing.
  • Measures area and perimeter of plots of any shape, including mountains and slopes.
  • Measures ground length (distance) between any two points or along any path.
  • Automatic calculation of measurement values, graph tracks, and price after completion.
  • Multiple measurement methods: Automatic, Manual, Constant Width, and Vehicle-Mounted.
  • Saves and records up to 100 historical data entries and graph tracks.
  • Allows browsing, querying, and deleting historical records.
  • Configurable unit price for area and length, and conversion factors for mu value and square meter.
  • Integrated auxiliary functions: banknote inspection, night vision lighting, and backlight.
  • Powered by two 3.7V/2000mAh rechargeable lithium batteries, providing 8-10 hours of continuous work per battery.

2.2 Device Layout

NOYAFA NF-198 GPS Land Meter Front View with Labeled Components
Figure 2: Front view of the NF-198 GPS Land Meter with key components labeled, including currency detection light, lighting light, satellite signals, LCD color screen, charging interface, power button, and key function area.
NOYAFA NF-198 GPS Land Meter Product Structure and Button Functions
Figure 3: Detailed product structure showing the hang rope hole, LED light, money detection light, sticker, satellite signal indicator, GPS signal indicator, power indicator, USB port, LCD screen, and all button functions (Pause, Delete, Save, Back, Up, Down, Left, Right, Enter/OK, Cash, Light, Backlit).

2.3 Package Contents

The standard package includes the following items:

  • 1 x NOYAFA NF-198 GPS Land Meter
  • 1 x Charging Adaptor
  • 1 x Charging Cable
  • 1 x Product Instruction Manual
  • 1 x Carry Bag
NOYAFA NF-198 GPS Land Meter Package Contents
Figure 4: Contents of the NF-198 GPS Land Meter package, including the device, charger, cable, manual, and carry bag.

3. Setup

3.1 Charging the Device

Before initial use, fully charge the device. Connect the charging cable to the NF-198's charging interface and plug the adaptor into a power outlet. A full charge typically takes 4-5 hours. The device uses a 3.7V/2000mAh lithium battery.

3.2 Initial Power-On and Satellite Acquisition

  1. Press and hold the Power button to turn on the device.
  2. Ensure you are in an outdoor open area, away from tall buildings or obstructions.
  3. Wait for the device to acquire satellite signals. The signal strength indicator on the screen should show more than 6 satellites before starting any measurement for optimal accuracy.
  4. It is recommended to wait until the longitude and latitude coordinates displayed on the screen are stable and unchanged before beginning measurement.

4. Operating Instructions

4.1 Main Menu Navigation

The NF-198 features a 2.8-inch color screen with a user-friendly menu. Use the directional buttons (Up, Down, Left, Right) to navigate through the menu options and the 'Enter' button to select.

NOYAFA NF-198 Main Menu and Internal Components
Figure 5: Main menu display showing options like Area, Length, SlopeArea, Query, Setting, and Calendar, alongside internal components like the high accuracy satellite module and DSS Digital satellite antenna.

4.2 Area Measurement (S-Flat / S-Slope)

The device can measure flat areas and slope areas. Ensure you have acquired more than 6 satellite signals before starting.

  1. From the main menu, choose 'S-Flat' for flat area measurement or 'S-Slope' for slope area measurement.
  2. For Flat Area (S-Flat):
    • Go along the perimeter of the area to be measured, starting and ending at the same point.
    • In manual testing mode, press 'Enter' at each corner. In automatic mode, press 'Enter' only at the end.
    • The device will automatically calculate the area and display details on the screen.
  3. For Slope Area (S-Slope):
    • Go to the highest point (e.g., Point B) and press 'Enter'.
    • Then go to the lowest point (e.g., Point A) and press 'Enter'. The device will calculate the slope angle.
    • Finally, go along the perimeter of the slope area (e.g., A~B~C~D) to measure the slope area.
Flat Area Measurement Instructions
Figure 6: Instructions for flat area measurement, showing the path to follow and points to mark.
Slope Area Measurement Instructions
Figure 7: Instructions for slope area measurement, illustrating how to mark highest and lowest points and trace the perimeter.
Overview of various measurement types including Area, Curve, Straight Line, Job, and Slope measurement.
Figure 8: Visual examples of different measurement types supported by the NF-198, such as area, curve, straight line, job, and slope measurements.

4.3 Length Measurement

To measure the length or distance between points:

  1. Ensure satellite signals are greater than 6 outdoors.
  2. Choose 'Length' from the main menu to start.
  3. Walk the distance to be tested (can be curved or straight).
  4. Press 'Enter' at each corner if in manual testing mode. If in automatic mode, press 'Enter' only at the end.
  5. The device will automatically calculate the distance and display details on the screen.
Length Measurement Instructions
Figure 9: Instructions for length measurement, showing how to trace a path and record points.

4.4 Vehicle-Mounted Measurement

For larger areas or when using a vehicle:

  1. Ensure satellite signals are greater than 6 outdoors.
  2. Choose 'Vehicle' in the main menu to start.
  3. Set the data according to the width of the vehicle. The device will calculate the distance automatically and display details on the screen.
Vehicle-Mounted Measurement Instructions
Figure 10: Instructions for vehicle-mounted measurement, illustrating how to set vehicle width and trace the area.

4.5 Data Management and Export

The NF-198 can save up to 100 historical records. You can review, query, and delete these records directly on the device.

To export data to a PC:

  1. Connect the NF-198 to your computer using the provided USB charging cable.
  2. The device will appear as a removable storage device.
  3. Use the provided software (e.g., 'nf_198_en.exe' as shown in the video) to connect to the device and read the data.
  4. The software can display the measured trajectory on a satellite map and allow you to save images of the measured areas.
Video 1: Demonstration of the NF-198 GPS Land Meter, showcasing vehicle measurement mode, area measurement, and data export to a PC application.
Data Export to PC and Auxiliary Functions
Figure 11: Illustrates the process of exporting data to a computer for viewing on a satellite map, along with the money detection, LED light, and backlight functions.

4.6 Auxiliary Functions

The NF-198 includes several auxiliary features:

  • Banknote Inspection: Use the integrated light for checking banknotes.
  • Night Vision Lighting: Provides illumination in low-light conditions.
  • Backlight: The screen backlight can be adjusted for visibility.

5. Maintenance

5.1 Battery Care

  • Always use the provided charging adaptor and cable.
  • Avoid overcharging or completely draining the battery to prolong its lifespan.
  • If the device will not be used for an extended period, charge it to about 50% and store it in a cool, dry place.

5.2 Cleaning and Storage

  • Clean the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
  • Keep the device dry and away from extreme temperatures.
  • Store the device in its carry bag to protect it from dust and physical damage.

6. Troubleshooting

Observe the following precautions and troubleshooting tips for optimal performance:

  • Outdoor Use: The instrument is designed for outdoor open areas. Avoid using it near tall blocking objects (e.g., tall buildings) as this can interfere with satellite signals.
  • Satellite Signal Strength: Always wait for the device to acquire more than 6 satellite signals before starting any measurement. Insufficient signals will lead to inaccurate results.
  • Stable Coordinates: Before beginning a measurement, ensure the longitude and latitude coordinates displayed on the screen are stable and not fluctuating.
  • Minimum Area: It is not recommended to measure small areas less than 0.3 mu (approximately 180 square meters) as accuracy may be compromised.
  • Movement Path: When measuring, ensure your moving paths do not cross or overlap to prevent errors in calculation.
  • Small Area Display: For very small areas, the number of collected points is limited. The device's internal algorithm optimizes this data, which might cause the displayed graph and plot to appear inconsistent. This is considered normal behavior.
Important Attention Points for NOYAFA NF-198 Usage
Figure 12: Key attention points for using the NF-198, emphasizing outdoor use, sufficient satellite signals, minimum area for measurement, and avoiding crossed movement paths.

7. Specifications

FeatureSpecification
Brand NameNOYAFA
Model NumberNF-198
Dimension (LxWxD)174 x 76 x 28 mm
Weight145 g
Area Measurement Range0 ~ 999999.99 mu (or equivalent in sq meter/ha/sq km)
Length Measurement Range0 ~ 999999.99 meters (or equivalent in km)
Length Measurement Error0.5 ~ 3 meters
Display Unit (Area)mu / square meter / ha / square kilometer
Display Unit (Length)m / km
Battery Type3.7V / 2000mAh Lithium Battery
Working Hours8-10 hours per battery
Charging Time4-5 hours
Screen2.8-inch Color LCD (320x240 dot matrix)
Battery IncludedYes
CertificationCE

8. User Tips

  • Data Export Software: To view your measured data on a larger map and save images, connect your NF-198 to a PC and use the dedicated software (e.g., 'nf_198_en.exe'). This allows for more detailed analysis and record-keeping.
  • Optimal Satellite Reception: Always prioritize using the device in clear, open outdoor environments to ensure the best possible GPS signal reception and measurement accuracy.
  • Battery Management: Carry a spare charged battery or a power bank for extended work sessions, especially given the 8-10 hour working time per battery.

9. Warranty and Support

For any questions, technical assistance, or support regarding your NOYAFA NF-198 GPS Land Meter, please contact the manufacturer or your retailer. Refer to the contact information provided with your purchase or on the official NOYAFA website.


NOYAFA NF-198 GPS Land Meter: Area Measurement & Data Export Demonstration

NOYAFA NF-198 GPS Land Meter: Area Measurement & Data Export Demonstration

0:45 • 1280×720 • demonstration

Related Documents - NF-198

Preview NOYAFA NF-198 GPS Land Meter User Manual
Comprehensive user manual for the NOYAFA NF-198 GPS Land Meter, detailing its features, operation, specifications, and troubleshooting for accurate land area measurement.
Preview Noyafa NF-271 & NF-272L Laser Distance Meter Instruction Manual
Comprehensive instruction manual for Noyafa NF-271 and NF-272L Laser Distance Meters, covering features, operation, specifications, and troubleshooting.
Preview NOYAFA NF-521 Thermal Imager Instruction Manual
Instruction manual for the NOYAFA NF-521 Thermal Imager, detailing its features, applications, technical specifications, and operation for accurate temperature measurement and thermal imaging.
Preview Noyafa NF-271, NF-272L, NF-275L Laser Distance Meter Instruction Manual
Comprehensive instruction manual for Noyafa laser distance meters, covering models NF-271, NF-272L, and NF-275L. Details product features, operation instructions, specifications, and troubleshooting.
Preview NOYAFA NF-2030/NF-2050 Laser Distance Meter Instruction Manual
This instruction manual provides detailed guidance on operating the NOYAFA NF-2030 and NF-2050 laser distance meters, including features, specifications, and troubleshooting tips.
Preview NOYAFA NF-271, NF-272L, NF-275L Laser Distance Meter Instruction Manual
Comprehensive instruction manual for NOYAFA NF-271, NF-272L, and NF-275L laser distance meters. Covers features, operation, specifications, and troubleshooting for accurate distance measurement.