Introduction
The HW300-MAX Coating Thickness Gauge is a precision instrument designed for non-destructive measurement of coating and paint thickness on various metal substrates. It automatically detects the properties of the substrate, distinguishing between magnetic (Fe) and non-magnetic (NFE) materials. This device is essential for material surface treatment applications across manufacturing, metal processing, chemical industries, and quality inspection, performing reliably in laboratories, workshops, and outdoor environments.
Setup
- Battery Installation: Open the battery compartment and insert the required batteries, ensuring correct polarity. The device features a battery level indicator on the display.
- Power On: Press the POWER button to turn on the device. The display will illuminate, showing current settings and readings.
- Initial Calibration (Zero Calibration): For accurate measurements, perform a zero calibration. Place the gauge directly onto the bare metal substrate (without any coating). Press the ZERO CAL button (if available, or follow on-screen instructions for calibration mode). This sets the baseline for subsequent measurements.
- Unit Selection: Press the um/mm mils button to toggle between micrometers (um), millimeters (mm), and mils units, according to your measurement preference.
Operating Instructions
- Surface Preparation: Ensure the surface to be measured is clean, dry, and free from dirt, grease, or loose particles that could affect accuracy.
- Automatic Substrate Detection: The HW300-MAX automatically detects whether the underlying substrate is magnetic (Fe) or non-magnetic (NFE). This is indicated on the display (e.g., "AUTO NFE").
- Measurement Mode: The device typically operates in an automatic measurement mode. For specific substrate types, you can use the AUTO F/NF button to switch between modes if manual selection is desired, though automatic detection is standard.
- Taking a Measurement: Place the probe of the gauge firmly and perpendicularly onto the coated surface. Hold it steady until the reading stabilizes on the display. The display shows the current thickness (SNG CNT), maximum (MAX), minimum (MIN), average (AVG), and difference (DIF) values, along with the number of readings (NUM).
- Automatic Shutdown: The device features an automatic shutdown function (AUTO OFF) to conserve battery power after a period of inactivity.
Maintenance
- Cleaning: Wipe the device and probe with a soft, dry cloth after each use. Do not use abrasive cleaners or solvents.
- Storage: Store the gauge in a dry, dust-free environment, away from extreme temperatures and direct sunlight.
- Battery Care: Remove batteries if the device will not be used for an extended period to prevent leakage and damage.
- Probe Protection: Ensure the probe is protected from damage or excessive wear, as this can affect measurement accuracy.
Troubleshooting
- Inaccurate Readings: If readings appear inconsistent or inaccurate, perform a zero calibration on a known bare metal surface. Ensure the probe is clean and making full contact with the surface.
- Device Not Turning On: Check the batteries. Ensure they are correctly installed and have sufficient charge. Replace if necessary.
- Display Issues: If the display is dim or flickering, replace the batteries. If the issue persists, contact support.
- No Substrate Detection: Ensure the surface is clean and the probe is making proper contact. The device is designed for metal substrates; it will not provide readings on non-metal surfaces.
Specifications
| Feature | Detail |
|---|---|
| Model | HW300-MAX |
| Measurement Range | 0-2000UM (micrometers) |
| Resolution | 1um |
| Measurement Accuracy | ± (3% + 1UM) |
| Substrate Detection | Automatic (Fe/NFE - Magnetic/Non-magnetic) |
| Operating Temperature | -10°C to 50°C (14°F to 122°F) |
| Material | Plastic |
| Color | Black |
| Dimensions (H x W x D) | 8.5cm x 4cm x 3cm (approx. 3.3in x 1.6in x 1.2in) |
| Probe Depth | 2.5cm (approx. 1in) |
User Tips
- Always perform a zero calibration before critical measurements or if you suspect accuracy issues.
- For consistent results, ensure the probe is placed flat and perpendicular to the surface. Avoid tilting the device.
- Take multiple readings in different spots on the same area and average them for a more reliable thickness assessment.
- Keep the calibration films and metal plate clean and free from damage for future calibration needs.
Warranty and Support
This product is subject to a return policy. If the item is damaged upon receipt, contact us within 24 hours. Returns for replacement or money back are accepted within 7 days if the item is incorrect, damaged, defective, or not as described. Items in your possession for more than 7 days are considered used and are not eligible for refund or replacement. Returns due to personal reasons (e.g., dislike) will incur return shipping costs borne by the buyer. All returned items must be in original packaging and include a tracking number, reason for return, and order ID.
For technical support or warranty claims, please contact the seller directly through your purchase platform. Provide your order details and a clear description of the issue for prompt assistance.
