Acaia Pearl Model S Smart Coffee Scale User Manual

Product Overview

Thank you for purchasing the Acaia Pearl S smart coffee scale. The Acaia Pearl S is designed and manufactured to the highest standards to provide you with the best brewing experience. Please check the product packaging for the following three items:

• Acaia Pearl S Professional Smart Coffee Scale
• Heat Resistant Cup Pad
• Charging Cable

Next, please follow the instructions in the "Getting Started" section to begin using your coffee scale. The Pearl Model S has many features. To fully utilize these functions, please read this user manual carefully and follow the instructions, examples, and other usage guidelines step by step.

Warning: Improper operation may cause damage to the product.

Appearance Introduction

Weighing Area: For the most accurate measurement, please place the item in the center of the weighing platform.

Power Button: Long press to turn on the power; double-click to turn off the power.

LED Display: Shows weight and timer information.

Tare Button: Short press to tare/zero the weight.

Getting Started

Environmental Requirements

Choose a stable and vibration-free working environment.

Power On/Off

• Long press the [Power Button] to turn on.
• Double-click the [Power Button] to turn off.

Tare/Zero

Short press the [Tare Button] to tare/zero.

Switching Units

Long press the [Tare Button] for 5 seconds to switch units.

Switching Modes

Long press the [Power Button] for 1 second to switch modes.

Refer to "Mode Introduction" for more details.

Brewguide Pour Over Mode

First-time Use of Brewguide Pour Over Mode

The Brewguide Pour Over mode is a step-by-step guide for brewing coffee. Simply scan the Acaia Brewguide QR code on the coffee bean packaging, then use the Brewguide app to download the brewing recipe to your Pearl S. In the Brewguide app, you can also find brewing recipes developed by roasters worldwide, and you can even create your own recipes to share with others.

• Download: Download the Brewguide app.
• Connect: Turn on your phone's Bluetooth and connect to the Pearl S.
• Personalize Settings: Follow the instructions in the Brewguide app to set up your preferences.

Using Brewguide Pour Over Mode on Pearl S

1. Scan the QR code to get the desired brewing recipe.
2. Select the Brewguide app.
3. In the app, select "Upload to Pearl S" to send the recipe to your Pearl S.
4. Wait for the recipe to be transferred to the Pearl S (approximately one minute).
5. Follow the steps to brew!

Brewguide Pour Over Mode Button Instructions

Entering Brewguide Pour Over Mode

From any mode, long press the [Tare Button] for 1 second.

Proceeding to the Next Brewing Step

In Brewguide mode, long press the [Tare Button] for 1 second.

Replaying Brewing Steps

In Brewguide mode, short press the [Power Button].

Returning to the Previous Brewing Step

In Brewguide mode, long press the [Power Button] for 1 second.

Tare/Zero

In Brewguide mode, short press the [Tare Button].

Product Maintenance and Care

Battery Charging

• This product can be charged via the following USB ports:
• USB port on a PC/laptop.
• 5V/1A USB charger.
• 5V/1A car charger.

Charging the battery from empty to full takes 3 to 4 hours. It is not recommended to let the battery drain completely before recharging. You can recharge as needed, but it is recommended to charge once a week. A full charge provides approximately 16 hours of use in normal brightness mode and approximately 40 hours in low brightness mode.

You can check the battery level via the Acaia app.

Note: Using a "fast charging power adapter" (1A output exceeding 5V) may damage the internal circuitry of the scale.

Battery Percentage

To check the remaining battery power, press and hold the [Power Button] while the coffee scale is turned off until the battery percentage is displayed. You can also check the battery power by connecting the coffee scale to the Acaia app.

Weight Calibration

1. Turn on your scale.
2. Tare/Zero: Short press the Tare button.
3. Display CAL: Repeatedly and quickly press the Tare button several times until the screen displays "CAL" and "100" alternately.
4. Place Weight: Place a weight (100g, 500g, or 1000g) on the scale for calibration.

When the screen displays "_End_", calibration is complete. You can then remove the weight.

Mode Introduction

Mode 1 - Weighing Mode

In weighing mode, the product only displays the weight in grams or ounces. The scale can display two weight units: grams or ounces. When the unit is in ounces, the green indicator light on the top right of the screen will remain lit, and the display will show 0.000. The screen displays [0.0] when the unit is in grams. The screen displays [0.000] when the unit is in ounces. When the weight unit is in grams, the scale is 0.1 grams. When the weight unit is in ounces, the scale is 0.005 ounces.

Mode 2 - Dual Display Mode (Timer/Weight)

In dual display mode, it will display [0:00 0.0], with the timer on the left and the weight on the right. This mode can display two weight units: grams or ounces. The screen displays [0:00 0.0] when the unit is in grams. The screen displays [0:00 0.000] when the unit is in ounces. When the weight exceeds 999 grams, the screen will only display the integer part (no decimal points). The display limit is 3000 grams; exceeding 3000 grams will display [Maximum].

Mode 3 - Pour Over Auto Timer Mode

This mode is designed for pour-over coffee brewing and measurement. The timer automatically starts when water flow is detected entering the container. When the brewing equipment is removed, the timer stops immediately, and the coffee weight flashes. The display shows [0:00 0.0] and [0.0] when the timer has not started. The display shows [0:00 0.000] and [0.000] when the timer has not started and the unit is in ounces. The screen displays [0:00 0.0] when the unit is in grams, with the timer on the left and weight on the right. The screen displays [0:00 0.000] when the unit is in ounces, with the timer on the left and weight on the right. When the weight exceeds 999 grams, the screen will only display the integer part (no decimal points). The display limit is 3000 grams; exceeding 3000 grams will display [Maximum].

Mode Description:

• When the timer has not started, the screen will flash the timer and water drop icon.
• The timer automatically starts when water flow is detected entering the container.
• When the brewing equipment is removed, the timer stops immediately. The screen will flash the extracted coffee weight and the weight of the brewing equipment.

Mode 4 - Portafilter Auto Tare Mode

This mode is designed to simplify the workflow when measuring coffee grounds with a portafilter. When the portafilter or container is placed on the scale, the scale automatically detects and tares the weight. It then remembers the portafilter's weight. When you lift the portafilter to adjust the coffee grounds and place it back on the scale, the display will only show the weight of the coffee grounds. The workflow is as follows: lift the portafilter to adjust the coffee grounds, then place it back on the scale to measure the coffee grounds again. Repeat this process until the desired weight is achieved. If the portafilter is removed for more than 15 seconds, the scale will reset this mode for the next operation, preparing to remember the portafilter's weight.

Display:

• Before placing the portafilter on the scale, the screen displays [0.0■], indicating grams.
• Before placing the portafilter on the scale, the screen displays [0.000■], indicating ounces.
• After placing the portafilter on the scale, the screen displays [0.0] / [0.000], indicating that the scale has remembered the portafilter's weight.

Mode Description:

• Place the empty portafilter on the scale; the scale will remember the portafilter's weight.
• When the [■] disappears from the screen, lift the portafilter.

Note: If you do not operate the scale or double-click the Tare button within 15 seconds, the scale will automatically reset for the next operation.

Mode 5 - Espresso Auto Mode

This mode is designed to assist in making espresso. The scale automatically detects the cup, glass, or other container and tares its weight. Then, when espresso is poured into the container, the timer automatically starts. When the water flow stops, the timer stops immediately. Finally, when the container is removed, the screen will alternately display the espresso weight and the container weight.

Display:

• The screen displays [0:00 0.0], indicating grams, with the timer on the left and weight on the right.
• The screen displays [0:00 0.000], indicating ounces, with the timer on the left and weight on the right.
• When the weight exceeds 999 grams, the screen will only display the integer part (no decimal points). The display limit is 3000 grams; exceeding 3000 grams will display [Maximum].

Mode Description:

• When an object weighing more than 2 grams is placed, the scale automatically tares.
• The timer automatically starts when espresso is poured into the container. When the water flow stops, the timer stops immediately.
• After espresso is finished, when the cup is lifted, the screen will alternately display the espresso weight and the cup weight.

Notes:

1. In Espresso Auto Mode, the timer will stop when the water flow stops.
2. Auto tare is only performed when the weight exceeds 2 grams.
3. If you do not operate the scale for 10 seconds, the timer will reset, and auto tare will begin.
4. In Espresso Auto Mode, the timer will also stop when the weight is negative (i.e., when the cup is removed).

Mode 6 - Flow Rate Mode (Timer/Weight/Flow Rate)

This mode is designed for advanced pour-over coffee brewing. The screen displays the timer, weight, and real-time flow rate. Professional pour-over requires a stable water flow rate; this mode helps users control the water flow more accurately. The display shows [0:00 0.0 0.0] when the unit is in grams. The display shows [0:00 0.000 0.00] when the unit is in ounces. When the weight exceeds 999 grams, the screen will only display the integer part (no decimal points). The display limit is 3000 grams; exceeding 3000 grams will display [Maximum]. The flow rate is displayed on the right, in grams per second (g/sec).

Mode 7 - Flow Rate Practice Mode

This mode is specifically for practicing pouring stability. The current flow rate is displayed on the left side of the screen, and the pouring stability is displayed in the chart on the right. A more stable pour-over coffee flow rate is typically controlled between 2-4 grams per second. The flow rate is measured in grams/second and ounces/second. In the chart, each dot starting from the left represents an increase of 0.5 grams/second, providing a visual representation of the flow rate.

Settings

Entering the Settings Menu

1. With the Pearl S turned off, press and hold the [Power Button]. The LED display will change from [ACAIA] to [SEt].
2. Press the Tare button to enter the settings menu. The first setting option is [Brightness].
3. Refer to the settings button instructions below:

Settings Menu

Brightness Setting [Brightness]

1. You can set the LED screen brightness of this product here.
2. The default brightness is [Medium]. If operating in strong light, you can set it to [Bright].

Beep Switch [Beep]

1. If the beep is set to On, there will be a beep sound; if set to Off, it will be silent.

Default Weight Unit [Unit]

1. To set to "grams", select [g]; to set to "ounces", select [Oz].
2. Long press the Tare button for 5 seconds to switch between default weight unit options.

Weighing Mode [Weighing Mode]

1. The default value for weighing mode is On, indicating that this mode is enabled.
2. On: Weighing mode is enabled.
3. Off: Weighing mode is disabled.

Dual Display Mode [Dual Display Mode]

1. The default value for dual display mode is On, indicating that this mode is enabled.
2. On: Dual display mode is enabled.
3. Off: Dual display mode is disabled.

Pour Over Auto Start Mode [Pour Over Auto Start Mode]

1. The default value for pour-over auto start mode is Off, indicating that this mode is disabled.
2. On: Pour-over auto start mode is enabled.
3. Off: Pour-over auto start mode is disabled.

Portafilter Auto Tare Mode [Portafilter Mode]

1. The default value for portafilter auto tare mode is Off, indicating that this mode is disabled.
2. On: Portafilter auto tare mode is enabled.
3. Off: Portafilter auto tare mode is disabled.

Espresso Auto Mode [Espresso Mode]

1. The default value for espresso auto mode is Off, indicating that this mode is disabled.
2. On: Espresso auto mode is enabled.
3. Off: Espresso auto mode is disabled.

Flowrate Mode [Flowrate Mode]

1. The default value for flowrate mode is Off, indicating that this mode is disabled.
2. On: Flowrate mode is enabled.
3. Off: Flowrate mode is disabled.

Flowrate Practice Mode [Flowrate Practice Mode]

1. The default value for flowrate practice mode is Off, indicating that this mode is disabled.
2. On: Flowrate practice mode is enabled.
3. Off: Flowrate practice mode is disabled.

Hello Message [Hello message]

1. The default value for the startup greeting is Off, meaning the startup greeting will not be displayed on startup.
2. On: The product will display a startup greeting when powered on.
3. Off: The product will not display a startup greeting when powered on.

Bluetooth Setting [Bluetooth setting]

1. Bluetooth is enabled by default.
2. On: Bluetooth is enabled. The product can connect via Bluetooth, and users can connect the product with Acaia apps.
3. Off: Bluetooth is disabled. The product cannot connect via Bluetooth.

Sleep Timer

1. The number displayed on the screen represents the automatic shutdown time of the product. For example, if the screen displays 10, the scale will automatically shut down after 10 minutes of no weight change.

Battery Saving [Battery saving]

1. The default setting for battery saving is 90 seconds.
2. The number displayed on the screen represents the time it takes for the product to enter battery saving mode, where the LED display dims to save power.

Environmental Noise Filtering [Filter]

1. This product uses professional environmental noise filtering technology. When entering this setting, there are three options to choose the desired filter parameters. If your environment has more vibration interference, such as from wind or air conditioning, or if you are outdoors, you can set this parameter to (High) to eliminate environmental noise interference and make brewing more convenient.

Zero Tracking [Zero Tracking]

1. Zero tracking ignores minor environmental influences, ensuring that the displayed weight remains at zero when no items are placed on the scale. If your environment causes more significant minor weight deviations, you can set a larger parameter.
2. Off: It is not recommended to turn off this setting, as the scale's zero point is prone to drift due to temperature changes.
3. 0.5d ~ 3d: For example, if each d is 0.1 g, then 3d = 3 x 0.1 g = 0.3 g. When zero tracking is set to 3d, if there is a minor weight deviation of ± 0.3 g while weighing, it will be ignored by the scale.
4. The default value for this product is 1d.

Weight Resolution [Resolution]

1. The default value is [Default]. For weights up to 1500 grams, the resolution is 0.1 grams; for weights between 1500 and 3000 grams, the resolution is 0.5 grams.
2. When set to [High], the resolution for weights up to 3000 grams is 0.1 grams.

Timer Auto Stop on Cup Removal [Timer Auto Stop on Cup Removal]

1. When the cup is removed, the timer will automatically pause. This setting provides an option for how long to wait before pausing.
2. The default value is 10 seconds.

Portafilter Auto Reset [Portafilter Auto Reset]

1. In Portafilter Auto Tare Mode, the weight will automatically reset after the portafilter is removed. This setting provides an option for how long to wait before resetting.
2. The default value is 15 seconds.

Reset to Factory Defaults [Reset Default]

1. To reset to factory default settings, go to [Reset Default] and select [Yes]. This will clear the startup greeting, reset all settings, and restore the Brewguide mode data to factory defaults.

Appendix

Button Instructions

LED Indicator Lights

Charging Indicator Light: The orange indicator light on the top left turns on when the product is charging and turns off when fully charged. If the indicator light flashes continuously, check the USB cable for issues.

Weight Zeroing: The orange indicator light on the bottom left flashes when you press the Tare button.

Ounce Mode: The green indicator light on the top right turns on when the current weight unit is ounces.

Espresso Auto Mode: The green indicator light on the bottom right turns on when the product is in Espresso Auto Mode.

Error Codes

Other

Product Specifications

Copyright Notice

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