Ozeri WeightMaster ZB21-W Digital Weight Scale User Manual

1. Introduction

The Ozeri WeightMaster Digital Weight Scale is designed to provide a simple yet comprehensive solution for measuring and tracking your weight, Body Mass Index (BMI), and weight changes over time. This manual provides instructions for proper setup, operation, and maintenance of your scale.

Figure 1: Ozeri WeightMaster Digital Weight Scale (White)

2. Safety Information

• Always use the scale on a hard, flat, and stable surface to ensure accurate readings. Avoid carpets or uneven floors.
• Do not use the scale on wet or slippery surfaces to prevent falls.
• The scale is made of tempered glass; avoid dropping heavy objects on it or subjecting it to strong impacts.
• This scale is for personal use and is not intended for medical diagnosis or treatment. Consult a healthcare professional for medical advice.
• Keep batteries out of reach of children.

3. Package Contents

Verify that all items are present in the package:

• Ozeri WeightMaster Digital Weight Scale
• User Manual
• 3 x AAA Batteries

4. Product Features

• BMI Measurement: Calculates your Body Mass Index based on your height and weight.
• Weight Change Detection: Displays your net weight change from your last weigh-in (L1), the average of your last 3 weigh-ins (L3), and the average of your last 7 weigh-ins (L7).
• Color Alert Technology: Provides visual feedback with a GREEN illumination for weight loss and RED for weight gain.
• Auto Recognition Technology: Automatically identifies up to 5 unique users.
• High Capacity: Weighs up to 400 lbs (180 kg) with precision graduations of 0.2 lbs (0.1 kg).
• Step-On Technology: Instant readings upon stepping on the scale.
• Auto-Calibration & Auto-Off: Ensures accuracy and preserves battery life.
• Durable Construction: Made from impact-resistant tempered glass with non-slip, scratch-resistant feet.

5. Setup

5.1 Battery Installation

1. Locate the battery compartment on the underside of the scale.
2. Open the battery compartment cover.
3. Insert the 3 AAA batteries, ensuring correct polarity (+/-).
4. Close the battery compartment cover.

5.2 Initial Placement

Place the scale on a hard, flat, and stable surface. Avoid placing it on soft surfaces like carpets, which can affect accuracy.

Figure 2: Slim profile of the Ozeri WeightMaster scale

5.3 Unit Selection (lbs/kg)

On the underside of the scale, locate the unit switch. Toggle it to select your preferred unit of measurement (pounds or kilograms).

5.4 User Profile Setup

The scale can store profiles for up to 5 users. Setting up a profile allows the scale to calculate BMI and track individual weight changes.

1. Step on the scale briefly to turn it on.
2. Press the 'SET' button located on the display. The 'USER' indicator will flash.
3. Use the arrow buttons (left/right) to select a user number (1-5). Press 'SET' to confirm.
4. The height setting will flash. Use the arrow buttons to adjust your height. Press 'SET' to confirm.
5. The age setting will flash. Use the arrow buttons to adjust your age. Press 'SET' to confirm.
6. The scale will then prompt you to step on it to record your initial weight for the profile. Ensure you stand still for a few seconds until the reading stabilizes.
7. Your profile is now set. The scale will automatically recognize you on subsequent weigh-ins.

Figure 3: Display during user profile setup

6. Operation

6.1 Weighing Procedure

1. Ensure the scale is on a hard, flat surface.
2. Step onto the scale with bare feet. The scale will automatically turn on and display your weight.
3. Stand still until the weight reading stabilizes and flashes.
4. The scale will then display your BMI, followed by your net weight change (L1, L3, L7) with color alerts.
5. The scale will automatically turn off after a few seconds of inactivity.

6.2 Understanding Weight Change Detection and Color Alerts

After displaying your current weight and BMI, the scale will show your weight change relative to previous weigh-ins, accompanied by a color-coded backlight:

• Green Illumination: Indicates a net weight loss.
• Red Illumination: Indicates a net weight gain.

The display will show:

• L1: Net weight change from your last weigh-in.
• L3: Net weight change from the average of your last 3 weigh-ins.
• L7: Net weight change from the average of your last 7 weigh-ins.

Figure 4: Display showing green illumination for weight loss

Figure 5: Display showing red illumination for weight gain

6.3 Official Product Video

7. Maintenance

• Clean the scale with a damp cloth and mild detergent. Do not use abrasive cleaners or immerse the scale in water.
• If the scale will not be used for an extended period, remove the batteries to prevent leakage.
• Store the scale in a cool, dry place.

8. Troubleshooting

9. Specifications

• Brand: Ozeri
• Model: ZB21-W
• Weight Capacity: 400 lbs (180 kg)
• Readout Accuracy: 0.2 lbs (0.1 kg)
• Display Type: LCD with Color Alert Technology
• Material: Tempered Glass
• Power Source: 3 x AAA Batteries (included)
• Special Features: Body Mass Index (BMI), Weight Change Detection, Auto Recognition (up to 5 users), Step-On Technology, Auto-Off
• Item Weight: Approximately 3.5 lbs

10. Warranty and Support

The Ozeri WeightMaster Digital Weight Scale is backed by Ozeri's commitment to quality. For specific warranty details or technical support, please refer to the warranty information included with your product or visit the official Ozeri website. Do not attempt to repair the scale yourself, as this may void the warranty.