MHW-3BOMBER Digital Coffee Scale Instruction Manual

1. Introduction

This manual provides detailed instructions for the MHW-3BOMBER Digital Coffee Scale, designed for high-precision weighing in both espresso and pour-over coffee preparation. It covers setup, operation, maintenance, and troubleshooting for both the Cube Coffee Scale 2.0 and Cube Coffee Scale 2.0 mini models. Please read this manual thoroughly before use to ensure proper operation and longevity of your device.

2. Safety Information and Precautions

Please observe the following safety guidelines to prevent damage to the product or injury to yourself:

• Charging: Do not use fast chargers or high-power adapters. It is recommended to use a 5V, 1A-2A USB Type-C adapter for charging. The charger is not included and must be prepared by yourself.
• Usage During Charging: Do not use the scale while it is charging.
• Battery Care: This product uses a lithium battery. Do not allow the battery to completely run out before charging. It is recommended to charge the lithium battery after each use. If the battery is low and the indicator flashes, charge it as soon as possible to protect battery life.
• Auto-Shutdown: If the timing function is not enabled, the scale will automatically shut down after 30 minutes of standby. If the timing function is on, it will automatically shut down after 40 minutes of standby (standby means no change in measurement).
• Temperature Range: The recommended operating surface temperature for the product is 0°C-60°C. Always use the scale with the attached heat insulation pad to protect it from high temperatures.
• Water Resistance: The coffee scale surface is waterproof, but be careful to prevent liquid from flowing into the gaps of the body and the charging port.
• Disassembly: The internal structure of the equipment is precise. It is strictly forbidden to disassemble it without permission.
• Magnetic Objects: Do not place magnetic objects or other electronic instruments near the scale to avoid damage.
• Activation: After starting up, the scale will activate (begin accurate measurement) if the weight placed on it is greater than 0.3g.
• Intended Use: This device is a coffee auxiliary tool and is not intended for trade settlement or other commercial measurement applications.

Our company will not be responsible for equipment damage, misalignment, or other adverse consequences caused by violation of the above precautions.

3. Product Overview and Features

The MHW-3BOMBER Digital Coffee Scale is designed to enhance your coffee brewing experience with precision and smart functionality.

Key Features:

• High Precision Sensors: Accurate to 0.1g, with a weighing range of 0.3g to 2000g.
• Smart Mode with Solid-Liquid Detection: An upgraded chip automatically detects water flow during brewing/extraction, initiating timing and calculating injection volume/liquid weight. This prevents operational errors from accidental touches or equipment changes.
• Gravity Sensing & Automatic Weight Reset: Automatically tares the weight of portafilters or drippers to zero, simplifying subsequent weighing.
• USB Type-C Rechargeable Battery: Equipped with a large capacity lithium battery for convenient charging. Cube Coffee Scale 2.0 features a 3.7V/1500mAh battery, while the Cube Coffee Scale 2.0 mini has a 3.7V/700mAh battery.
• Automatic Shutdown: Conserves battery life with auto-shutdown after 2 minutes of standby (no timing) or 30-40 minutes of standby (with timing, no measurement change).
• Sleek Hidden Screen Design: Offers a minimalist and elegant aesthetic.
• Durable Construction: Made from Aluminium alloy, ABS, Silicone, and Galvanized Sheet.
• Heat-Resistant & Anti-Slip: Includes a silicone heat-resistant pad and double rectangular anti-slip pads for stable placement.

4. Initial Setup

1. Unpacking: Carefully remove the scale and all accessories from the packaging.
2. Initial Charge: Before first use, fully charge the scale using a 5V, 1A-2A USB Type-C adapter. The charging port is located on the side of the device.
3. Physical Switch: Locate the physical power/sound switch on the side of the scale. Ensure it is in the 'Power On' position.
4. Placement: Place the scale on a flat, stable, and level surface to ensure accurate readings.
5. Heat Insulation Pad: Always use the provided silicone heat insulation pad on the weighing platform, especially when placing hot items like coffee servers or portafilters, to protect the scale.

5. Operating Instructions

5.1. Controls Overview

1. Button 1 (Left): Click to Start/Pause Timing; Double Click to Switch Units (g/oz); Long Press to Reset Time / Smart Mode Memory/Zeroing.
2. Display Area 2: Time/Coffee-Water Ratio Display.
3. Indicator 3: Sound Indicator.
4. Display Area 4: Power Display.
5. Indicator 5: Smart Mode Indicator.
6. Display Area 6: Measurement Display.
7. Display Area 7: Measurement Units Display.
8. Button 8 (Right): Single click to Power On / Zero the Weight; Double Click to switch to Smart Mode; Long Press to Power Off.
9. Interface 9: Type-C Charging Interface.
10. Switch 10: Physical switch / Sound switch.

5.2. General Operation

• Power On: Ensure the physical switch (10) is in the 'Power On' position. Single click button (8).
• Zeroing/Tare: With the scale powered on, place an empty container or object on the platform, then single click button (8) to reset the display to 0.0g.
• Switch Units: Double click button (1) to toggle between grams (g) and ounces (oz).
• Power Off: Long press button (8).
• Smart Mode Activation: After powering on, double click button (8) to enter Smart Mode. The Smart Mode indicator (5) will illuminate, and a water drop pattern may appear on the display.

5.3. Espresso Use

1. After powering on, double-click button (8) to enter Smart Mode. The screen will display a water drop pattern.
2. Place your portafilter on the scale. Single click button (8) to clear the weight (tare).
3. Dose the appropriate amount of coffee powder into the portafilter. The scale will automatically record the powder weight.
4. After distributing and tamping, attach the portafilter to your espresso machine's brew head.
5. Place your cup or container on the scale. The smart system will automatically zero out the weight.
6. Initiate extraction. The scale will automatically start timing and display the liquid weight as coffee flows into the cup. (Avoid moving the scale during extraction).
7. Once extraction is complete, remove the cup/container to stop the timer.
8. The display will alternately show the extraction time, liquid weight, liquid-to-powder ratio, and powder weight.

5.4. Hand-brewing (Pour-Over) Use

1. After powering on, double-click button (8) to enter Smart Mode. The screen will display a water drop pattern.
2. Place your bean container on the scale. Single click button (8) to clear the weight.
3. Weigh the desired amount of coffee beans and grind them.
4. Moisten your coffee paper filter and pour off any waste water. Place your hand-brewing equipment (dripper, server) on the scale. Single click button (8) to clear the weight.
5. Pour the ground coffee powder into the filter. Single click button (8) to zero and automatically record the powder weight. The water drop pattern on the screen will blink to indicate recording is complete.
6. Begin pouring water. The scale will automatically start timing and display the amount of water injected. (Avoid moving the scale during the water pouring process).
7. Once the desired amount of water has been poured, remove the filter cup or coffee server to stop the timer.
8. The display will alternately show the brewing time, volume of water, coffee-to-water ratio, and coffee grounds weight.

6. Maintenance

• Cleaning: Wipe the scale surface with a soft, damp cloth. Avoid using abrasive cleaners or harsh chemicals that could damage the finish or electronic components. Ensure no liquid enters the charging port or internal gaps.
• Charging: Always use the recommended 5V, 1A-2A USB Type-C adapter for charging. Do not overcharge the battery. Charge the scale when the battery indicator shows low power.
• Storage: Store the scale in a dry, cool place away from direct sunlight, extreme temperatures, and magnetic fields.
• Heat Pad: Regularly clean the silicone heat insulation pad. Ensure it is properly placed on the weighing platform during use.

7. Troubleshooting

8. Specifications

8.1. Cube Coffee Scale 2.0

8.2. Cube Coffee Scale 2.0 mini

9. User Tips

• Familiarize with Controls: Take some time to understand the functions of each button and display area, especially the dual functions of Button 1 and Button 8.
• Leverage Smart Mode: For consistent brewing, always use the Smart Mode. Its automatic timing and tare features simplify the process and reduce manual errors. The 'Solid-Liquid Detection' is particularly useful for hands-free operation once liquid starts flowing.
• Stable Surface is Key: Ensure your scale is always on a perfectly flat and stable surface for the most accurate readings. Even slight wobbles can affect precision.
• Use the Heat Pad: Always use the provided silicone heat insulation pad when placing hot items on the scale to protect the sensors and surface from heat damage.
• Charging Best Practices: Stick to the recommended 5V, 1A-2A charger to prolong battery life and prevent potential damage. Avoid charging while using the scale.

10. Warranty and Support

MHW-3BOMBER is committed to providing high-quality products and an excellent user experience. For any comments, suggestions, or issues with your product, please contact the seller or manufacturer's customer support. Improving your experience is our mission.