1. Introduction
The KT-SZ series intelligent integrated mapping water finder, including the KT-400SZ model, is an advanced geophysical instrument designed for efficient groundwater exploration. It utilizes the Earth's natural electromagnetic field as its signal source to detect differences in resistivity of underground rocks and groundwater. By analyzing various frequency electric field components measured on the ground, the instrument can identify abnormal geological conditions and map water-bearing strata.
This instrument offers significant advantages over traditional methods, including high measurement speed, ease of portability, simple operation, high accuracy, and strong anti-interference capabilities. It automatically generates curves and geological profiles, simplifying data interpretation and accelerating the process of identifying stable rock formations and water sources.

2. Product Components
The KT-400SZ groundwater detector system typically includes the main instrument unit and various accessories. Refer to the diagram below for component identification (using KT-100SZ as an example, components are similar).

- Main Instrument Unit: Features an LCD display, test light, power indicator light, and main switch.
- M N Jack: Port for connecting electrode cables.
- Charging Port: For connecting the charger.
- Data Cable: For data transfer.
- OTG Cable: For connecting to other devices.
- Copper Electrode: Used for ground contact.
- Alloy Electrode Rod: Used for ground contact.
- Electrode Cable: Connects electrodes to the main unit.
- M N Plug: Connects electrode cables to the M N jack.
3. Setup Instructions
- Charge the Instrument: Before first use, ensure the main instrument unit is fully charged using the provided charger and charging port.
- Connect Electrodes:
- Attach the M N plugs of the electrode cables to the M N jacks on the main instrument unit.
- Connect the copper electrodes and alloy electrode rods to the other ends of the electrode cables.
- Position Electrodes: Insert the copper electrodes and alloy electrode rods firmly into the ground at the desired measurement points. Ensure good contact with the soil.
- Power On: Flip the main switch to the "ON" position. The power indicator light should illuminate, and the LCD display will activate.
- Initial Check: Observe the test light and LCD display for any error messages or abnormal indications.

4. Operating Instructions
The KT-400SZ is designed for simple, automatic operation. It leverages the Earth's natural electromagnetic field for geophysical prospecting.
- Select Measurement Mode: On the LCD display, navigate through the menu to select the appropriate measurement mode for your geological survey. The instrument is fully automatic and controlled by a high-speed CPU, making it user-friendly even for those without extensive experience.
- Initiate Measurement: Start the measurement process. The instrument will automatically measure N different frequency electric field components.
- Data Acquisition: Allow the instrument to complete its data acquisition. The advanced anti-interference technology ensures reliable readings even in challenging environments.
- View Results: The instrument automatically processes the collected data and presents it as curves and geological profiles on the 7-inch HD TFT LCD display.
- Analyze Profiles: Interpret the geological profiles to identify potential water-bearing strata, stable rock formations, and other geological features. The data can be directly displayed or exported for further analysis.
- Save Data: Ensure all relevant data is saved. The instrument has an external large capacity memory card and retains data even after power-off.
The instrument's real-time drawing function allows for on-the-spot analysis of results, saving time and manpower.
5. Maintenance
- Cleaning: Wipe the instrument's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the instrument in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: Recharge the battery regularly, even if not in use, to maintain its lifespan. Avoid fully discharging the battery for extended periods.
- Electrode Care: Clean electrodes after each use to remove soil and debris. Store them properly to prevent damage.
- Cable Inspection: Periodically inspect all cables for signs of wear or damage. Replace damaged cables immediately to ensure proper operation and safety.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Instrument does not power on. | Low battery; Main switch off; Faulty power cable. | Charge the battery; Ensure main switch is ON; Check power cable connection. |
| Inaccurate readings or inconsistent data. | Poor electrode contact; Strong external electrical interference; Incorrect measurement settings. | Ensure electrodes are firmly in ground; Relocate to an area with less interference; Verify measurement mode and settings. |
| LCD display not working. | Instrument off; Display settings; Hardware issue. | Power on the instrument; Check display brightness/contrast settings; Contact support if issue persists. |
| Cannot transfer data. | Faulty data/OTG cable; Incorrect connection; Software issue. | Check cables and connections; Ensure correct software/drivers are installed on PC; Try a different cable. |
7. Specifications
The following table outlines the technical specifications for the KT-400SZ model:

| Parameter | KT-400SZ |
|---|---|
| Type No. | KT-400SZ |
| Depth | 400m |
| Controller | 32-bit high-speed CPU |
| Channel Gain | 10-300,000 times |
| Measurement Accuracy | 0.001mV |
| Measurement Channel | 8 |
| Measurement Range | 0-2000mV |
| Power Consumption | About 4W |
| A/D Conversion | 16-bit 1Msps |
| Input Impedance | ≥10MΩ |
| Measuring Frequency | 40 frequency |
| Working Environment Temperature | -20℃ ~ 50℃ |
| Relative Humidity | ≤85% |
| Host Weight | 0.65kg |
| Battery Weight | 6.9kg |
| Display Screen | 7-inch HD TFT Liquid Crystal Display, Touch |
| Other Parameters | Automatic measurement, automatic drawing of curve and profile. Data retained after power-off. Grid lines can be stored per line. Measures up to 999 points per line. Data can be displayed or exported. File, graph, profile functions. |
8. User Tips
- For optimal results, conduct measurements in areas with minimal external electrical interference.
- Ensure all cable connections are secure and electrodes have good contact with the ground to prevent inaccurate readings.
- Familiarize yourself with the instrument's menu and display options to efficiently navigate and interpret data.
- Regularly back up your measurement data to an external storage device.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact your vendor. Keep your purchase records for any warranty claims.





