SHAHE Digital Display Roller Distance Measurement Gauge

1. Introduction

The SHAHE Digital Display Roller Distance Measurement Gauge is designed for high-precision length measurement of wood and aluminum profiles when used with cutting machinery. It features a digital LCD display for clear readings and a roller mechanism for accurate distance tracking. The device can be securely attached to various cutting machines, making it an essential tool for precise woodworking and metalworking tasks.

2. Product Overview

Familiarize yourself with the components of your SHAHE Digital Display Roller Distance Measurement Gauge:

Button Graphics Explanation

3. Specifications

4. Setup

4.1. Battery Installation

1. Open the battery compartment using the provided screwdriver.
2. Insert 2 AAA batteries according to the polarity markings inside the compartment. The rated voltage is 3V.
3. Close the battery compartment securely.

4.2. Mounting the Saw Caliper

The instrument is typically installed on the left side of the cutting machine's support plate. The clamping mechanism can be adjusted for backboard thicknesses between 4mm and 12mm. For thicker backboards up to 23mm, adjust or remove the push rod nut.

1. Pull the spanner away from the main body.
2. Position the base's support plane against the top of the cutting machine's support plate.
3. Push the spanner towards the main body until the cutting machine's support plate is securely clamped.
4. Adjust the length of the clamping arm's top rod or remove it if necessary, based on the support plate's thickness.

4.3. Saw Caliper Fixation Solution (Optional)

If the saw caliper cannot be fixed securely or conveniently on your cutting machine's existing backup plate, consider adding a new backup plate. Refer to the user manual PDF for detailed diagrams and instructions on constructing and installing a custom backup plate.

For detailed instructions and diagrams on creating a custom backup plate, please refer to the User Manual (PDF).

5. Operating Instructions

5.1. Power On/Off

• To Power On: Short press the ON button. The instrument resets after switching on.
• To Power Off: Press and hold the ON button. The instrument will also automatically switch off after 3 minutes of inactivity.

5.2. Unit Conversion

After powering on, short press the UNIT button to cycle through the available measurement units:

• MM (millimeters)
• CM (centimeters)
• M (meters)
• IN (inches - decimal)
• IN (inches - fractional)
• FT-IN (feet-inches - decimal)
• FT-IN (feet-inches - fractional)

5.3. Zeroing the Measurement

To set the current position as zero:

1. Position the material to be measured.
2. Press the ZERO button. The display will reset to 0.00.

5.4. Setting Blade Width

This feature allows the instrument to automatically compensate for the saw blade's thickness.

1. Press and hold the UNIT button to enter the blade width setting interface (the 'A' icon will light up).
2. Turn the measuring wheel until the number on the LCD matches the thickness of your saw blade (measure with a vernier caliper or use manufacturer's specification). This value will be automatically factored into subsequent measurements.
3. Short press the LIGHT button to confirm the blade width setting.

5.5. Performing a Measurement

1. Ensure the instrument is securely clamped and powered on.
2. Push the rocker arm downwards to ensure the rolling rubber wheel is in close contact with the surface of the material to be measured.
3. Slide the material until it is close to the left edge of the saw blade.
4. Press the ZERO button to set this position as the starting point (0.00). The display may show a negative value representing the blade width if set.
5. Move the material to the desired cutting position. The display will show the measured distance.
6. Perform the cut.

Note: Reset the instrument to zero before each new measurement for accuracy.

5.6. Angular Cutting

The Saw Caliper supports angular cutting measurements.

1. Make the initial cut on the material (straight or beveled).
2. If the next cut is at an angle, press the LIGHT button to set the corresponding cutting angle (e.g., OFF, 0°, 5.0°, 10.0°, 15.0°, 22.5°, 31.6°, 35.3°, 45.0°, 50.0°, 55.0°, 60.0°).
3. Choose whether to measure the bevel from the inner edge or the outer edge (zero position) based on your cutting requirements.
4. Push the material into position and make the cut.

Note: After an angle cut, ensure the cut angle is set to 00.0°. Setting it to OFF will disable blade width compensation but not delete it from memory.

5.7. Direction Setting

The instrument measures from left to right by default. To measure from right to left, short press the ON button to reverse the measuring direction. When measuring from right to left, ensure the instrument is installed on the right side of the backboard.

5.8. Backlight

Press and hold the LIGHT button to turn on the LCD backlight. The backlight will automatically turn off after 30 seconds of inactivity or if you press and hold the LIGHT button again to save power.

6. Calibration

The instrument is factory-calibrated, but it is recommended to perform an on-site calibration for the most accurate results, especially when using a specific tape measure.

1. Ensure the instrument is switched off and securely clamped on a flat, smooth, and straight material (at least 5 feet/1.5 meters wide and 8 feet long).
2. With the instrument off, press and hold the LIGHT and UNIT buttons simultaneously to enter the "CAL" interface.
3. Short press the LIGHT button to enter calibration mode.
4. Move the material slightly beyond the tool position and make a cut.
5. Move the material slightly to the right steadily. Press the UNIT button to select either FT or CM mode.
6. Mark the material with a tape measure at 3 feet (in FT mode) or 100 cm (in CM mode) from the cutting edge.
7. Press the measuring wheel against the material and press the LIGHT button.
8. Move the material from left to right until the tool aligns with the marked position.
9. Press the LIGHT button again to complete the calibration.

7. Maintenance

• Keep the measuring roller clean. Ensure there is no debris on the surface of the roller during measurement, as this can cause inaccurate data.
• When the battery voltage is lower than 2.7V, the battery level indicator on the LCD will flash. Replace the batteries promptly to ensure continued accurate operation.
• Store the device in its protective case when not in use to prevent damage.

8. Troubleshooting

• Inaccurate Measurements: Check the measuring roller for any debris and clean it if necessary. Ensure the device is properly calibrated.
• Device Not Powering On: Check battery installation and ensure batteries are not depleted. Replace batteries if the low battery indicator was flashing.
• Unstable Clamping: If the saw caliper cannot be fixed securely on the cutting machine's backup plate, consider adding a new backup plate as described in Section 4.3.

9. User Tips

• For repetitive cuts, ensure the saw caliper is firmly mounted and zeroed correctly to maintain consistent accuracy.
• The backlight feature is useful in dimly lit workshops; remember to turn it off to conserve battery life.
• Always ensure the material is close to the support plate during measurement to prevent errors.
• While there's no speed limit for moving the material, avoid excessively fast back-and-forth movements, which can lead to inaccurate readings.

10. Warranty and Support

This product comes with a 12-month warranty. The warranty does not cover man-made damage, misuse, repairs without authorization, natural wear and tear, or refund orders.

For further assistance or to view the complete item guides and documents, please refer to the official User Manual (PDF).