1. Introduction
Thank you for choosing the TANITA KD-321 Digital Kitchen Scale. This manual provides essential information for the safe and efficient operation of your new scale. Please read these instructions thoroughly before use and retain them for future reference.

The TANITA KD-321 Digital Kitchen Scale in use, showing a bowl of rice being weighed on its stainless steel platform.
2. Safety Precautions
- Do not immerse the scale in water or other liquids.
- Do not use abrasive cleaners or harsh chemicals.
- Avoid dropping the scale or subjecting it to strong impacts.
- Place the scale on a stable, flat surface during use to ensure accurate readings.
- Keep out of reach of children.
3. Package Contents
- TANITA KD-321 Digital Kitchen Scale
- Stainless Steel Weighing Platform
- 2 x AAA Batteries
- Instruction Manual (this document)
4. Product Features
- High Precision: Measures with 0.1 gram graduation for weights up to 300 grams, 0.5 grams up to 1500 grams, and 1.0 grams up to 3000 grams.
- Fluid Conversion: Accurately measures water and milk in milliliters (ml) or fluid ounces (fl oz).
- Tare Function: Allows you to weigh multiple ingredients consecutively in the same container by resetting the display to zero after each addition.
- Durable Design: Features a removable, easy-to-clean stainless steel weighing platform.
- Compact and Stable: Lightweight design with silicon rubber legs to prevent sliding.
5. Setup
- Install Batteries: Open the battery compartment on the underside of the scale. Insert the 2 AAA batteries, ensuring correct polarity. Close the compartment securely.
- Place Platform: Carefully place the stainless steel weighing platform onto the scale's base. Ensure it is seated correctly and stably.
- Position Scale: Place the scale on a firm, level, and stable surface. Avoid placing it near heat sources, strong vibrations, or electromagnetic fields.
6. Operating Instructions
6.1. Power On/Off
- Press the ON button to turn the scale on. The display will show '0' or '0.0'.
- Press the OFF button to turn the scale off.
6.2. Weighing Items
- Ensure the scale is on and displays '0' or '0.0'.
- Place the item directly onto the stainless steel weighing platform.
- Read the weight displayed on the LCD screen.

Close-up of the TANITA KD-321 scale's LCD display, showing a clear reading. The display is designed for easy readability, making it suitable for both home and professional kitchens.
6.3. Tare Function
The tare function allows you to subtract the weight of a container or previous ingredients, so you only measure the new item(s).
- Place an empty container on the weighing platform. The display will show its weight.
- Press the TARE button. The display will reset to '0' or '0.0'.
- Add the item(s) you wish to weigh into the container. The display will show only the net weight of the added item(s).

Demonstration of the tare function: Step 1 shows an empty bowl on the scale, Step 2 shows the display zeroed after pressing TARE, and Step 3 shows an item added to the bowl for weighing.
6.4. Unit Conversion
The scale can measure in grams (g), ounces (oz), pounds (lb), and milliliters (ml) for water and milk.
- Press the MODE button (often labeled 'g/oz' or 'ml/fl oz') to cycle through the available measurement units.
- For fluid measurements, select the 'ml' or 'fl oz' mode. The scale is calibrated for water and milk (normal milk).

The digital scale features a fluid conversion function, allowing precise measurement of liquids like water and milk in milliliters or fluid ounces.
6.5. Micro Mode (0.1g Graduation)
The scale automatically adjusts its precision based on the weight being measured:
- 0.1g increments: For weights from 0 to 300 grams.
- 0.5g increments: For weights from 300 grams to 1500 grams.
- 1.0g increments: For weights from 1500 grams to 3000 grams.
7. Maintenance
- Cleaning: The stainless steel weighing platform is removable and washable. Clean it with a damp cloth and mild detergent. The main body of the scale should be wiped with a damp cloth only. Do not use abrasive cleaners.
- Storage: Store the scale in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Replacement: If the display shows a low battery indicator, replace the 2 AAA batteries promptly.

A hand wiping the removable stainless steel weighing platform, highlighting the scale's easy-to-clean design.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Scale does not turn on | Dead or incorrectly installed batteries | Check battery polarity or replace batteries. |
| Inaccurate readings | Unstable surface, overloaded scale, or foreign objects under platform | Place on a stable surface. Do not exceed 3kg capacity. Ensure nothing is obstructing the platform. |
| Display shows 'Err' or 'EEEE' | Scale overloaded | Remove item immediately. Do not exceed 3kg capacity. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | TANITA |
| Model Number | KD-321 |
| Color | Silver |
| Weight Limit | 3 Kilograms (6.6 lbs) |
| Graduation | 0.1g (0-300g), 0.5g (300-1500g), 1.0g (1500-3000g) |
| Display Type | LCD |
| Material | Stainless Steel (platform) |
| Power Source | 2 AAA batteries (included) |
| Product Dimensions | 12.13 x 9.29 x 4.49 inches |
| Item Weight | 1.32 pounds (0.6 Kilograms) |

Diagram illustrating the compact design and dimensions of the TANITA KD-321 Digital Kitchen Scale, showing its slim profile and spacious platform.
10. Warranty and Support
TANITA products are manufactured to high-quality standards. For specific warranty information and customer support, please refer to the warranty card included with your purchase or visit the official TANITA website. Keep your proof of purchase for any warranty claims.
For further assistance, please contact TANITA customer service through their official channels.





