VOLTCRAFT SDM-2125 Coating Thickness Gauge User Manual

1. Introduction

This user manual provides detailed instructions for the operation and maintenance of the VOLTCRAFT SDM-2125 Coating Thickness Gauge. This device is designed for high-precision and non-destructive measurements of coating thickness on both ferrous and non-ferrous metal substrates. It automatically detects the substrate material and determines the coating thickness using magnetic flux or eddy current principles.

The SDM-2125 weighs approximately 180 g and can store up to 500 data groups. It features a clear display that indicates whether measured values are within set limits (green for within limits, red for below limit, yellow for exceeding limit). For energy efficiency, the device automatically switches off after five minutes of inactivity. It supports both single-point and multi-point measurements, and its advanced algorithm for calculating measurement averages ensures quick and accurate results.

Figure 1: Front view of the VOLTCRAFT SDM-2125 Coating Thickness Gauge, showing the display and control buttons.

2. Key Features

• Dual-Purpose Measurement: Suitable for both ferrous and non-ferrous metals.
• Measurement Principles: Utilizes both magnetic flux and eddy current measurement methods.
• Automatic Substrate Detection: Automatically identifies the underlying material (ferrous or non-ferrous).
• Data Storage: Capable of storing up to 500 data groups for comprehensive analysis.
• Flexible Measurement Modes: Offers two measurement options: single-point measurement or continuous multi-point measurement.
• Limit Value Indication: Visual feedback (green, red, yellow) to indicate if measurements are within, below, or above set limits.
• Automatic Shut-off: Conserves battery life by automatically powering down after five minutes of inactivity.

Figure 2: The SDM-2125 displaying a measurement reading, highlighting its clear digital interface.

3. Setup

3.1 Unpacking and Inspection

1. Carefully remove the SDM-2125 device and all accessories from the packaging.
2. Inspect the device for any signs of damage during transit. If damage is found, do not proceed with setup and contact customer support.
3. Verify that all components listed in the packing list are present. This typically includes the main unit, calibration foils, and a zero-calibration plate.

3.2 Battery Installation

The SDM-2125 requires batteries for operation. (Note: Batteries are not included with the device.)

1. Locate the battery compartment on the back of the device.
2. Open the battery compartment cover.
3. Insert the required batteries, ensuring correct polarity as indicated inside the compartment.
4. Close the battery compartment cover securely.

Figure 3: Rear view of the SDM-2125, illustrating the battery compartment location.

3.3 Initial Power On and Calibration

1. Press the power button to turn on the device.
2. Perform a zero-point calibration on a bare, uncoated metal substrate (ferrous and non-ferrous, if applicable) provided with the device. Follow the on-screen instructions or refer to the quick start guide for specific calibration steps.
3. Calibrate with the included calibration foils of known thickness to ensure accuracy across the measurement range.

4. Operation

4.1 Basic Measurement

1. Ensure the device is powered on and calibrated.
2. Place the probe of the gauge firmly and perpendicularly onto the coated surface to be measured.
3. The device will automatically detect the substrate material (Fe for ferrous, NFe for non-ferrous) and display the coating thickness reading.
4. Observe the color indicator on the display for limit value status (green, red, or yellow).

4.2 Measurement Modes

The SDM-2125 supports different measurement modes:

• Single Measurement Mode: For individual readings at specific points. Press the probe, read the value, then lift the probe.
• Continuous Measurement Mode: For scanning a surface and obtaining multiple readings rapidly. Keep the probe in contact and slide it across the surface. The device will continuously update the reading.

4.3 Data Storage and Recall

The device can store up to 500 data groups.

• To save a measurement, refer to the device's specific button functions (e.g., a 'Save' or 'Memory' button).
• To recall stored data, navigate through the memory function using the designated buttons. The device typically displays statistics like average, minimum, and maximum values for stored groups.

Figure 4: The SDM-2125 showing a measurement value, demonstrating its capability to display various data points including number of readings, average, min, and max.

5. Maintenance

5.1 Cleaning

• Regularly clean the device's exterior with a soft, dry cloth.
• For stubborn dirt, a slightly damp cloth with mild detergent can be used, but ensure no liquid enters the device.
• Pay special attention to keeping the measurement probe clean and free of debris, as this can affect accuracy.
• Do not use abrasive cleaners, solvents, or strong chemicals.

5.2 Storage

• When not in use for extended periods, remove the batteries to prevent leakage and damage to the device.
• Store the device in its original case or a protective pouch to prevent scratches and impacts.
• Store in a cool, dry place, away from direct sunlight, extreme temperatures, and high humidity.

5.3 Calibration Check

• Periodically check the calibration of the device using the provided calibration foils and zero-calibration plate.
• Recalibrate if readings are inconsistent or if the device has been subjected to significant temperature changes or impacts.

6. Troubleshooting

7. Specifications

8. Warranty and Support

For warranty information, technical support, or service inquiries regarding your VOLTCRAFT SDM-2125 Coating Thickness Gauge, please refer to the warranty card included with your product or visit the official VOLTCRAFT website.

You can also contact the seller, Conrad Electronic SE, for assistance with your purchase.

Online Resources:

• VOLTCRAFT Official Website: www.voltcraft.com (General link, specific link not provided in input)
• Conrad Electronic SE Seller Page: Seller Information