Manuals+

NOYAFA NF-188

Noyafa NF-188 GPS Land Meter User Manual

Model: NF-188

1. Introduction

Thank you for choosing the Noyafa GPS area and length measuring instrument. This device utilizes GPS positioning systems, embedded microcontrollers, high-precision algorithms, and other advanced technologies to provide accurate field area and length measurements.

It is ideal for measuring farmland, green spaces, forests, water bodies, beaches, factories, and mining areas. It can quickly measure the area, distance, perimeter, and other data for plots of any shape. This instrument serves as a crucial tool for agriculture, forestry, water conservancy, soil management, taxation departments, and for calculating agricultural machinery operation charges.

2. Product Features

  • High Accuracy GPS+Beidou Satellite Positioning: Ensures precise measurements.
  • Large Color Screen: Features a 2.8-inch 320 x 240 display for clear and intuitive viewing.
  • Versatile Measurement: Capable of measuring any shape of land, including flat ground, slopes, and mountainous terrain.
  • Distance Measurement: Can test the length or distance between any two points.
  • Data Display: Shows test data, graphics trajectory, and total calculation amounts on the screen.
  • Measurement Methods: Supports both manual and automatic measurement modes.
  • Data Storage: Can store and record up to 99 historical data entries, which can be scanned, found, and deleted.
  • Unit Price Setting: Allows setting unit prices according to relative measuring units.
  • Additional Functions: Includes currency detection, a lighting lamp, and backlight functions.
  • Rechargeable Battery: Equipped with two 3.7V/2000mAh rechargeable batteries, providing 8-10 hours of operation per battery.
Noyafa NF-188 GPS Land Meter with key features
The Noyafa NF-188 GPS Land Meter highlighting its GPS+Beidou satellite positioning, 9 functional tests, 4 measuring methods, and dual satellite positioning.
Noyafa NF-188 showing 9 functional tests
Overview of the 9 functional tests available on the NF-188: Area Measurement, Equal-Wide Measurement, Slope Area Measurement, Measurement Unit, History Enquiry, Signal, Flash Light, Fake Currency Detection, and Calendar.

3. Package Contents

Upon opening your Noyafa NF-188 GPS Land Meter package, please ensure all the following items are present:

  • Noyafa NF-188 GPS Land Meter device
  • Rechargeable Lithium Battery (3.7V/2000mAh) - 2 pieces
  • USB Charging Cable
  • Carrying Pouch
  • User Manual (this document)
Noyafa NF-188 Product Packaging
The Noyafa NF-188 GPS Land Meter, carrying pouch, and product box.

4. Setup

4.1 Battery Installation

  1. Locate the battery compartment cover on the back of the device.
  2. Gently slide or lift the cover to open it.
  3. Insert the 3.7V/2000mAh rechargeable lithium battery into the compartment, ensuring correct polarity.
  4. Close the battery compartment cover securely.
Noyafa NF-188 battery installation
Illustration of how to install the 2000mAh rechargeable battery into the NF-188 device.

4.2 Charging the Device

  1. Connect the micro USB end of the charging cable to the MICRO port on the side of the device.
  2. Connect the other end of the USB cable to a DC5V 1A original or guaranteed charger.
  3. The device will indicate charging status on the screen. Charging time is approximately 4-5 hours.
Noyafa NF-188 Micro USB charging
The Micro USB port on the side of the NF-188 used for charging the battery. Please use a DC5V 1A charger.

4.3 Initial Satellite Search

  1. Turn on the device by pressing the power button.
  2. Upon entering the main interface, the system will automatically begin searching for satellites.
  3. For accurate measurement, ensure the device acquires signals from at least 6 satellites. This process typically takes 1-3 minutes.
  4. A strong signal indicator on the screen confirms sufficient satellite connection.
Noyafa NF-188 satellite searching
The NF-188 performing a satellite search. Measurement is available when the quantity of satellites is over 6, typically within 1-3 minutes.

5. Operating Instructions

5.1 Navigating the Main Menu

The main menu provides access to various functions. Use the arrow keys (UP, DOWN, LEFT, RIGHT) to navigate and the ENTER key to select an option.

Common menu options include:

  • S-Flat (Area Measurement): For measuring flat areas.
  • Length: For measuring distances.
  • S-Slope (Slope Area Measurement): For measuring areas on slopes.
  • S-Width (Equal-Wide Measurement): For measuring areas with equal width.
  • Vehicle: For vehicle-based measurements.
  • Query: To view historical data.
  • Setting: To adjust device settings.
  • Calendar: To view the calendar.

5.2 Area Measurement (S-Flat, S-Slope, S-Width)

  1. From the main menu, select the desired area measurement mode (e.g., S-Flat for flat areas).
  2. Walk along the perimeter of the area you wish to measure. The device will automatically record the trajectory.
  3. Once you have completed the perimeter, press the ENTER key to finalize the measurement.
  4. The screen will display the calculated area, perimeter, and other relevant data.
Noyafa NF-188 measuring area, perimeter, and length
The NF-188 can measure area, perimeter, and length distances on flats, mountains, and slopes. Diagrams illustrate how to measure area, perimeter, and length between two points.

5.3 Length/Distance Measurement

  1. From the main menu, select 'Length'.
  2. Walk the path or measure the distance between two points.
  3. Press ENTER to start and ENTER again to stop the measurement.
  4. The device will display the measured length.

5.4 Saving and Reviewing Historical Data

  1. After completing a measurement, press the SAVE button to store the data. The device can store up to 99 records.
  2. To review past measurements, select 'Query' from the main menu.
  3. Use the arrow keys to navigate through the saved records.
  4. To delete a record, select it and press the DELETE button.
Noyafa NF-188 saving and recording historical data
The NF-188 can save and record up to 99 historical data entries and figure tracks, which can be viewed, inquired, and deleted at any time.

5.5 Currency Detection Function

The device includes a currency detection feature:

  • Press the 'cash' button on the keypad.
  • The lamp will turn on, allowing you to detect currency.
Noyafa NF-188 currency detection function
Demonstration of the NF-188's currency detection function by pressing the 'cash' button to activate the lamp.

5.6 Lighting Lamp Function

For operation in dark environments:

  • Gently touch the 'light' button.
  • The lighting lamp will turn on.
Noyafa NF-188 lighting lamp function
The NF-188's lighting lamp function, activated by touching the 'light' button, for use in dark environments.

5.7 Data Export to PC

The device supports exporting measured data to a PC for further analysis and viewing. Please note that due to limitations, direct viewing with Google Maps might not be supported by the provided software.

  1. Connect the NF-188 to your computer using the provided USB cable.
  2. Install the dedicated PC software (e.g., 'nf_198_en.exe' as shown in the video) if not already installed.
  3. Launch the software.
  4. Click 'Connect' to establish a connection with the device.
  5. Click 'Read data' to transfer the stored measurement records to the PC software.
  6. You can then view the data, including satellite maps of measured areas, and save images of the maps.
Video demonstrating how to export data from the NF-188 to a PC and view the measured area on a satellite map.

6. Specifications

Noyafa NF-188 product parameters diagram
Diagram illustrating the key components and dimensions of the NF-188: Satellite Signals, Charging Interface, LCD Color Screen, Power button, Key Function Area, Lighting light, and Currency Detection Light. Dimensions are 174mm x 76mm x 28mm.
Parameter NF-188 NF-198
Measure range of area 0-9999999.99m² 0-9999999.99m²
Display unit acre/m²/hm²/km² acre/m²/hm²/km²
Measuring error of area 1-2% (area below 0.5 acre); ≤1% (area above 0.5 acre) 1-2% (area below 0.5 acre); ≤1% (area above 0.5 acre)
Measuring range of length 0-9999999.99m 0-9999999.99m
Display unit m/km m/km
Measuring error of length 0.5-3m 0.5-3m
Operating power supply 3.7V/2000mAh chargeable lithium battery 3.7V/2000mAh chargeable lithium battery
Operating time 8-10 hours; charging time: 4-5 hours 8-10 hours; charging time: 4-5 hours
Product dimension 174x76x28mm 174x76x28mm
Net weight of product 149g (not containing battery) 149g (not containing battery)
Testing Type Flat Ground/Slope Flat Ground/Slope/Latitude
Testing Mode Automatic/Manual/Vehicle Automatic/Manual/Vehicle
Function of perpetual calendar √ √
Currency detection function √ √
Function of lighting lamp √ √
Backlight function √ √
Height measurement × √
Measurement of barometric pressure × √
Satellite measurement × √
Vehicle-carrier measurement × √

Note: The NF-188 model is certified with CE and includes a battery. It does not contain any high-concerned chemicals.

7. Troubleshooting

7.1 Cannot Upload Data to PC or View with Google Earth

Issue: Users report difficulty finding compatible software to upload data to a PC or view it directly with Google Earth.

Solution: The manufacturer notes that due to limitations with Google Maps, this device cannot directly upload files for viewing with Google Earth. Please use the dedicated PC software provided with the device (e.g., 'nf_198_en.exe' as seen in the video demonstration) to export and view your measurement data. This software allows you to connect the device, read data, and save images of the measured areas, but it operates independently of Google Earth's direct integration.

7.2 Language Settings

Issue: Device language is not in the desired language (e.g., English).

Solution: The device typically supports multiple languages. Navigate to the 'Setting' menu on the device. Look for a 'Language' or 'Idioma' option and select your preferred language (e.g., English). If you cannot find this option, refer to the on-screen icons for guidance or consult the manufacturer's support.

8. User Tips

  • Optimal Satellite Reception: For best accuracy, ensure you are in an open area with a clear view of the sky when performing measurements. Wait for the device to acquire signals from at least 6 satellites before starting.
  • Battery Management: Always ensure your device is fully charged before heading out for extensive measurements. Carry a spare charged battery if available, or a portable power bank for recharging via the USB cable.
  • Data Backup: Regularly export your historical data to your PC to prevent loss, especially before performing a factory reset or if you anticipate needing the data for long-term records.
  • Software Updates: Check the official Noyafa website periodically for any software or firmware updates for your device, which may improve performance or add new features.

9. Safety Information

  • Do not expose the device to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
  • Avoid dropping or subjecting the device to strong impacts.
  • Use only the specified battery type and charger. Using incompatible accessories may damage the device or pose a safety risk.
  • Keep the device out of reach of children.
  • Do not attempt to disassemble or repair the device yourself. Refer to qualified service personnel.
  • Dispose of batteries and electronic components responsibly, following local regulations.

10. Warranty and Support

Your Noyafa NF-188 GPS Land Meter comes with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or contact Noyafa customer support.

For technical assistance, troubleshooting, or service inquiries, please contact Noyafa Official Store customer support. Contact information can typically be found on the manufacturer's website or on the product packaging.

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