PS001 Pearl Model S Coffee Scale

Acaia Pearl Model S User Manual

PS001 / PS002

FW 1.0.053

In the Box
Introduction
Scale Overview
Getting Started
Using the Acaia Brewguide
Product Care Information
Mode Introduction
Configuration
Appendix
Specifications

In the Box

Thank you for choosing one of our scales. The Acaia Pearl Model
S is designed and manufactured to the most rigorous standard to
give you the best coffee brewing experience. First, check the
shipping carton to find the following:

Acaia Pearl Model S Coffee Scale
Heat Resistant Coaster
Micro USB Charging Cable

Next, follow the instructions in the Getting Started chapter in
this manual to start using your scale. To take full advantage of
the many features of the Pearl Model S, carefully read through this
user manual for step-by-step procedures, examples, and other
information.

Warning: Incorrect handling of this product
could result in personal injury or physical damage.

Scale Overview

Weighing Pan

Power

LED Display

Tare

Note: For the best performance, place the weight in the
center of the weighing pan.

Getting Started

Placement

Select a work surface that is stable, vibration-free and level
to place the scale.

Power On / Off

[Press] to turn on the scale. [Double
tap] to turn off the scale.

Tare Weight

[Press] to tare/zero the weight.

Toggle Units

[Press and hold] for five seconds to toggle
units.

Switch Modes

[Press and hold] for one second to switch
modes. * Please see the Mode Introduction section for more
details.

Using the Acaia Brewguide

Using Brewguide for the First Time

Brewguide is a step-by-step interactive guide to brewing coffee.
Simply scan the Acaia Brewguide QR code on the coffee bean bag, and
use the Acaia Brewguide app to download the recipe to your Pearl S.
In the Brewguide app, you can also discover guides created by
roasters around the world.

Download the Brewguide app
Activate the Bluetooth on your phone and connect with the Pearl
S
Follow the instructions on the Brewguide app to start
personalization

Using Brewguide on Pearl S

Search or scan the QR Code to find the brewguide you need.
Select a brewguide.
Choose Upload to Pearl S in the app to send it to Pearl S.
Wait until the brewguide is sent to the Pearl S; this may take
up to one minute.
Follow the guide and get brewing!

Brewguide Action Buttons

Enter Brewguide mode: In any scale mode, [press and
hold] for one second
Go to the next brewing step: In Brewguide mode, [press
and hold] for one second
Replay the current brewing step: In Brewguide mode,
[press] to replay
Go back to the previous brewing step: In Brewguide mode,
[press and hold] for one second

Product Care Information

Battery Charge

Battery Indicator

Calibration

Mode Introduction

Mode 1 – Weighing Mode

Mode 2 – Dual Display Mode

Mode 3 – Pour Over Auto Start Mode

Mode 4 – Portafilter Mode

Mode 5 – Espresso Mode

Mode 6 – Flowrate Mode

Mode 7 – Flowrate Practice Mode

Configuration

Appendix

Buttons

LED Indicators

Error Codes

Specifications

View Fullscreen

Acaia Pearl Model S User Manual
PS001 / PS002

FW 1.0.053

Contents

3 In the Box

Introduction

Scale Overview

4 Getting Started

Placement

Power On / Off

Tare Weight

Toggle Units

Switch Modes

5 Using the Acaia Brewguide

Using Brewguide for the First Time

Using Brewguide on Pearl S

Brewguide Action Buttons

7 Product Care Information

Battery Charge

Battery Indicator

Calibration

8 Mode Introduction

Mode 1 – Weighing Mode

Mode 2 – Dual Display Mode

Mode 3 – Pour Over Auto Start Mode

Mode 4 – Portafilter Mode

Mode 5 – Espresso Mode

Mode 6 – Flowrate Mode

Mode 7 – Flowrate Practice Mode

13 Configuration 17 Appendix

Buttons

LED Indicators

Error Codes

Other

19 Specifications

In the Box
Introduction
Thank you for choosing one of our scales. The Acaia Pearl Model S is designed and manufactured to the most rigorous standard to give you the best coffee brewing experience. First, check the shipping carton to find the following:

Acaia Pearl Model S Coffee Scale

Heat Resistant Coaster Micro USB Charging Cable

Next, follow the instructions in the “Getting Started” chapter in this manual to start using your scale. To take full advantage of the many features of the Pearl Model S, carefully read through this user manual for step-by-step procedures, examples, and other information.

Warning: Incorrect handling of this product could result in personal injury or physical damage.

Scale Overview

Weighing Pan Power

LED Display Tare

*Note: For the best performance, place the weight in the center of the weighing pan. 3

Getting Started

Placement

Select a work surface that is stable, vibration-free and level to place the scale.

Power On / Off
[Press] to turn on the scale. [Double tap] to turn off the scale.
Tare Weight
[Press] to tare/zero the weight.

Toggle Units
[Press and hold]

for five seconds to toggle units.

Switch Modes
[Press and hold] for one second to switch modes. * Please see the “Mode Introduction” section for more details.
4

Using the Acaia Brewguide
Using Brewguide for the First Time
Brewguide is a step-by-step interactive guide to brewing coffee. Simply scan the Acaia Brewguide QR code on the coffee bean bag, and use the Acaia Brewguide app to download the recipe to your Pearl S. In the Brewguide app, you can also discover guides created by roasters around the world.

Download
Download the Brewguide app

Connect
Activate the Bluetooth on your phone and connect
with the Pearl S

Start personalization
Follow the instructions on the Brewguide app

Using Brewguide on Pearl S

1
Search or scan the QR Code to find the brewguide
you need.

2 Select a brewguide.

3
Choose “Upload to Pearl S” in the app to send it to
Pearl S.

4
Wait until the brewguide is sent to the Pearl S; this may take up to one minute.

5
Follow the guide and get brewing!

Brewguide Action Buttons
Enter Brewguide mode
In any scale mode, [press and hold] for one second

Go to the next brewing step
In Brewguide mode, [press and hold] for one second

Replay the current brewing step
In Brewguide mode, [press] to replay

Go back to the previous brewing step
In Brewguide mode, [press and hold] for one second

Tare

In Brewguide mode, [press] to tare

Product Care Information
Battery Charge
· You can charge the battery by plugging the USB cable into any of the power supplies listed below:
· A computer · A USB wall-charger with an output of 5 volts and 1 amp · A DC car-charger with an output of 5 volts and 1 amp · It takes about 3-4 hours to fully charge the battery from empty. Try not to let the battery completely run out before charging. Charge the battery as needed. · A fully charged battery can provide up to 16 hours of working time in normal brightness and up to 40 hours in low brightness mode. · To check remaining battery level, see “Battery Level Indicator” section. * Note: Using a “fast-charging” charging block or charging hub (a charging block/hub delivering over 5v at 1A) could damage your Acaia scale’s circuit board.
Battery Indicator
· When the scale is off, the remaining battery level can be viewed by pressing and holding the power button until the battery level indicator is displayed. · You can also check the battery level by connecting the scale to Acaia Apps.
Calibration

Turn on scale
Turn on the Acaia scale.

Tap Tare button
Make sure the scale is in weighing mode and the unit is set to `gram’, then tap the
`T’ button rapidly.

See CAL display

Place a weight

Keep tapping the `T’ button until `CAL’ is
shown on the display.

Place a weight (100 g/500 g/1000 g) on the scale and wait
until the display shows `_End_’. Calibration is now
complete!

Mode Introduction
Mode 1 – Weighing Mode
In the Weighing Mode, the scale will only display weight, in either grams or ounces.

· There are two different weighing units in Weighing Mode: gram and ounce. A green dot will appear in the upper right of the LED display and the scale will read 0.000 when weighing in ounces. · The LED display shows [ 0.0 ] when the scale is measuring in grams. · The LED display shows [ 0.000 ] when the scale is measuring in ounces. · The readability is 0.1 g for grams and 0.005 oz for ounces.

Action Tare Weight Toggle Units g/oz Reset Mode Switch Mode

Operation Tap Tare button Press and hold Tare button for five seconds Double tap Tare button Long press Power button

Mode 2 – Dual Display Mode
In the Dual Display Mode, the scale displays [ 0:00 0.0 ] with a timer (left) and weight (right).

· There are two different weighing units in Dual Display Mode: gram and ounce. · The LED display shows [0:00 0.0] when the scale is measuring in grams. · The LED display shows [0:00 0.000] when the scale is measuring in ounces. · When the weight exceeds 999 grams, the LED display only shows the integer part
(the decimal point will not be displayed). The LED display shows up to a maximum of
3000 grams. If the weight exceeds 3000 grams, the scale will display [ Maximum ].

Action Start/Stop/Reset Timer Tare Weight Reset Mode Toggle Units g/oz Switch Mode

Operation Tap Power button Tap Tare button Double tap Tare button Press and hold Tare button for five seconds Press and hold Power button

Mode 3 – Pour Over Auto Start Mode
The Pour Over Auto Start Mode is designed to aid pour over coffee brewing. The scale will detect the start of the flow from kettle into the vessel and automatically start the timer function; the timer stops when the brewing equipment has been removed from the scale. When the vessel is removed from the scale, the display flashes the final beverage weight.

Display

· The LED display flashes [

0.0 ] and [ 0:00 0.0 ] when measuring in grams and the

timer is idle.

· The LED display flashes [ 0.000 ] and [ 0:00 0.000 ] when measuring in ounces and the

timer is idle.

· Once the timer has started, the LED display shows [ 0:00 0.0 ], with the time elapsed on

the left and the weight on the right in grams.

· Once the timer has started, the LED display shows [ 0:00 0.000 ], with the time elapsed on

the left and the weight on the right in ounces.

· When the weight exceeds 999 grams, the LED display only shows the integer part (the

decimal point will not be displayed). The LED display shows up to a maximum of 3000 grams.

If the weight exceeds 3000 grams, the scale will display [ Maximum ].

Mode Description
· If the timer has not started yet, the display will flash 0:00 and a water droplet. · The timer will start automatically when the first flow of water is detected. · The timer stops when the brewing equipment is removed. The scale will flash between the beverage weight and the tare weight of the items on the scale.

Action Start/Stop/Reset Timer Tare Weight Reset Mode Toggle Units g/oz Switch Mode

Operation Tap Power button Tap Tare button Double tap Tare button Long press Tare button for five seconds Press and hold Power button

Mode 4 – Portafilter Mode
The Portafilter Mode is designed to simplify the workflow of weighing coffee grounds in a portafilter. The scale automatically detects a portafilter or other vessel and tares the weight of the vessel. Remove the portafilter to add coffee grounds, then place on the scale again to measure the weight of the coffee grounds. Repeat as needed to adjust the weight. After the portafilter has been removed for 15 seconds, the scale will reset the mode to default for the next workflow.
Display
· When measuring in grams, the display shows [ 0.0 ] before a portafilter is placed on the scale. · When measuring in ounces, the display shows [ 0.000 ] before a portafilter is placed on the scale. · The display shows [ 0.0 ] after a portafilter has been registered.
Mode Description · Place an empty portafilter on the scale, and the scale will register the weight of the portafilter. · Remove the portafilter after [ ] disappears.

Action Tare Weight
Reset Mode Toggle Units g/oz Switch Mode

Operation Tare function begins automatically when a stable weight is placed on the scale Double tap Tare button Long press Tare button for five seconds Press and hold Power button

Note 1. If the scale is left idle for 15 seconds or you double tap the Tare button, the Pearl Model S will automatically reset the mode to default for the next auto-tare operation. 2. To change the timer reset length in Portafilter Mode, see the “Configuration” section.

Mode 5 – Espresso Mode
The Espresso Mode is designed to aid espresso extraction. The scale automatically detects a cup, shot glass, or other vessel and tares the weight of the vessel. The scale will then detect the start of the flow of espresso into the vessel and automatically start the timer function; the timer stops when the flow of espresso into the vessel stops. When the vessel is removed from the scale, the display flashes between the beverage weight and vessel weight.
Display
· The LED display shows [ 0:00 0.0 ] with the timer on the left and the weight on the right in grams. · The LED display shows [ 0:00 0.000 ] with the timer on the left and the weight on the right in ounces. · When the weight exceeds 999 grams, the LED display only shows the integer part (the decimal point will not be displayed). The LED display shows up to a maximum of 3000 grams. If the weight exceeds 3000 grams, the scale will display [ Maximum ].

Mode Description
· When an object (such as a cup) weighing two grams or more is placed on the scale and the weight reading is stable, the scale will perform auto tare. · After the scale detects the flow of espresso, the timer will start. The timer will stop when the espresso flow stops. · When the espresso is ready and the cup is removed, the display will flash between the beverage weight and the vessel weight.

Action Start/Stop/Reset Timer Tare Weight Reset Mode Toggle Units g/oz Switch Mode

Operation Tap Power button Tap Tare button Double tap Tare button Long press Tare button for five seconds Press and hold Power button

Note 1. In Espresso Mode, the timer will stop when the espresso flow stops. 2. The auto-tare function is performed only when the weight exceeds two grams. 3. If you leave the scale idle for ten seconds, it will reset the timer and perform tare operation. 4. In Espresso Mode, the timer will also stop when a negative weight (i.e., removal of a cup) is detected.

Mode 6 – Flowrate Mode
Designed for pour over coffee brewing. The display includes timer, flowrate, and weight.

Time

Weight

Flowrate

· The LED display shows [0:00 0.0 0.0] when the scale is measuring in grams. · The LED display shows [0:00 0.000 0.00] when the scale is measuring in ounces · When the weight exceeds 999 grams, the LED display only shows the integer part
(the decimal point will not be displayed). The LED display shows up to a maximum of
3000 grams. If the weight exceeds 3000 grams, the scale will display [ Maximum ].
· The flowrate is measured in grams per second (g/s) on the right hand side of the display.

Action Start/Stop/Reset Timer Tare Weight Reset Mode Toggle Units g/oz Switch Mode

Operation Tap Power button Tap Tare button Double tap Tare button Long press Tare button for five seconds Long press Power button

Mode 7 – Flowrate Practice Mode
A real-time flowrate meter mode designed for practicing your infusion stability. The current flowrate is displayed on the left, and the stability of pouring is shown through the indicator bar.

· The flowrate is measured in g/s and oz/s. · Each dot on the indicator bar represents a 0.5 g/s increment. The bar provides a
visualization of flowrate stability.

Action Toggle Units g/oz Switch Mode

Operation Long press Tare button for five seconds Long press Power button

Configuration

Enter Settings
1. With the Pearl S powered off, press and hold the Power button. When the LED display shows [ ACAIA ] and then changes to [ SEt ], release the Power button.
2. Tap the T button to enter Settings. The first setting is [ Brightness ]. 3. Please refer to the following table for key operations

Action Next Setting Previous Setting Enter Setting Toggle Options Save Option Back to Menu without Saving Exit Settings and Return to Modes

Operation Tap Tare button Tap Power button Press and hold Tare button Tap Tare button Press and hold Tare button Tap Power button Double tap Power button

Settings Menu

Setting

Display

Options

Default

Brightness Setting

Brightness

Low, Medium, High, Bright Medium

Key Sound Setting

Beep

On, Off

Default Weighing Unit Setting

Unit

Gram, Ounce

Gram

Weighing Mode Setting

Weighing Mode

On, Off

Dual Display Mode Setting

Dual Display Mode

On, Off

Pour Over Auto Start Mode Setting Pour Over Auto Start Mode On, Off

Off

Portafilter Mode Setting

Portafilter Mode

On, Off

Off

Espresso Mode Setting

Espresso Mode

On, Off

Off

Flowrate Mode Setting

Flowrate Mode

On, Off

Off

Flowrate Practice Mode Setting Flowrate Practice Mode On, Off

Off

Hello Message Setting

Hello Message

On, Off

Off

Bluetooth Setting

On, Off

Sleep Timer Setting

Sleep Timer

5 Min, 10 Min, 20 Min, 30 Min, 60 Min, Off

5 Min

Battery Saving Setting

Battery Saving

90 Sec, 180 Sec, Off

90 Sec

Weighing Filter Setting

Filter

Normal, High, Sensitive

Normal

Zero Tracking Setting

Zero Tracking

1D, 2D, 3D, Off

Weighing Resolution Setting

Resolution

Default, High, Low

Default

Timer Auto Stop on Cup Removal Setting

Timer Auto Stop on Cup Removal

10 Sec, 30 Sec, 60 Sec, Off

10 Sec

Portafilter Auto Reset Setting Reset Default

Portafilter Auto Reset Reset Default

15 Sec, 30 Sec, 60 Sec No, Yes

15 Sec No

Brightness Setting [Brightness] 1. You can adjust the brightness of the LED display. 2. Default brightness is set to Medium. Set to Bright when operating under strong light.
Key Sound Setting [Beep] 1. Use this setting to turn the beeping sound on or off.
Default Weighing Unit Setting [Unit] 1. The default weighing unit is set to be gram if [ Gram ] is selected and ounce if [ Ounce ] is selected. 2. Tap the Tare button to switch the default weighing unit between gram and ounce.
Weighing Mode Setting [Weighing Mode] 1. By default, the Weighing Mode is set to On. · On: The Weighing Mode is enabled. · Off: The Weighing Mode is disabled.
Dual Display Mode Setting [Dual Display Mode] 1. By default, the Dual Display Mode is set to On. · On: The Dual Display Mode is enabled. · Off: The Dual Display Mode is disabled.
Pour Over Auto Start Mode Setting [Pour Over Auto Start Mode] 1. By default, the Pour Over Auto Start Mode is set to Off. · On: The Pour Over Auto Start Mode is enabled. · Off: The Pour Over Auto Start Mode is disabled.
Portafilter Mode Setting [Portafilter Mode] 1. By default, the Portafilter Mode is set to Off. · On: The Portafilter Mode is enabled. · Off: The Portafilter Mode is disabled.
Espresso Mode Setting [Espresso Mode] 1. By default, the Espresso Mode is set to Off. · On: The Espresso Mode is enabled. · Off: The Espresso Mode is disabled.
Flowrate Mode Setting [Flowrate Mode] 1. By default, the Flowrate Mode is set to Off. · On: The Flowrate Mode is enabled. · Off: The Flowrate Mode is disabled.
Flowrate Practice Mode Setting [Flowrate Practice Mode] 1. By default, the Flowrate Practice Mode is set to Off. · On: The Flowrate Practice Mode is enabled. · Off: The Flowrate Practice Mode is disabled.
14

Hello Message Setting [Hello Message] 1. By default, the Hello Message is set to Off. · On: The Hello Message will show when the scale is turned on. · Off: The Hello Message will not show when the scale is turned on.
Bluetooth Setting [Bluetooth Setting] 1. By default, the Bluetooth is set to On. · On: The Bluetooth is enabled. The scale can be connected with Acaia apps. · Off: The Bluetooth is disabled. The scale does not allow any Bluetooth connection.
Sleep Timer Setting [Sleep Timer] 1. The number displayed indicates the amount of time before the scale will automatically power off. For example, when 10 is selected and the scale is disconnected from all mobile devices, the scale will power off after 10 minutes of idling.
Battery Saving Setting [Battery Saving] 1. The default Power Saving Mode is set to 90 seconds. 2. The Acaia Pearl Model S will wait for the selected number of seconds to enter Power Saving Mode. The LED display will dim to save power.
Weighing Filter Setting [Filter] 1. The weighing filter setting determines the speed with which the load receptor responds to and determines the weight. “High” indicates a more stable but slower weighing result; “Sensitive” indicates higher sensitivity and a faster weighing result.
Zero Tracking Setting [Zero Tracking] 1. Zero tracking is a function to help compensate the weight readout fluctuations at zero point to improve the usability of the scale. Acaia Pearl S is allowed to compensate the fluctuation by up to 2 d according to industrial weighing guidelines. 2. Off: It is not recommended to turn off zero tracking as the zero indication can drift easily with changing room temperatures. 3. 0.5 d~3 d: For example, since each division is 0.1 g, 3 d = 0.3 g. When zero tracking is set to be 3 d, any initial weight between +/- 0.3 g on the weighing pan will be zeroed out. 4. 1 d is recommended for Acaia Pearl Model S.
Weighing Resolution Setting [Resolution] 1. The default weighing resolution is set to [ Default ], the division is 0.1 g for weights under 1500 grams and 0.5 g for weights between 1500 and 3000 grams. 2. When the weighing resolution is set to [ High ], the division will be 0.1 g throughout the entire time from 0 to 3000 grams. 3. When the weighing resolution is set to [ Low ], the division will be 1 g throughout the entire time from 0 to 3000 grams.
15

Timer Auto Stop on Cup Removal Setting [Timer Auto Stop on Cup Removal] 1. After a cup is removed, the timer will automatically pause. This setting gives you options on how long to wait before pausing. 2. The default value for this setting is ten seconds.
Portafilter Auto Reset [Portafilter Auto Reset] 1. In Portafilter Mode, after a portafilter is removed, the weight will automatically reset. This setting gives you options on how long to wait before resetting. 2. The default value for this setting is fifteen seconds.
Reset Default [Reset Default] 1. To reset the scale to its factory default settings, go to [ Reset Default ], then choose [ Yes ]. The scale will clear the Hello Message and reset all settings including Brewguide data to factory default.
16

Appendix

Buttons

Power Button
Tare Button

Function Turn on Turn off Switch Mode Start/Stop/Reset Timer Back Tare Toggle units
Switch option
Reset
Confirm
Enter Brewguide Mode Enter Calibration Mode

Example
Press and hold for 0.5 seconds to turn on the scale.
Double-tap to turn off the scale.
While the scale is turned on, press and hold for one second to switch modes.
Tap to start/stop/reset timer.
While in Settings Menu, double tap to go back to Modes.
Tap to perform tare operation.
Long press for five seconds to change weighing unit between gram and ounce.
While in Settings, tap to advance through settings options. While in settings, tap to toggle options in sub menus.
Double tap to reset a mode. This zeroes the weight and sets the timer to 0:00.
While in Settings, press and hold for two seconds to confirm the option selected in a sub menu.
Press and hold for one second to enter Brewguide Mode.
While in Weighing Mode, rapidly tap to enter Calibration Mode.

LED Indicators

Battery charge Tare operation

Ounce indicator Espresso Mode indicator

Battery charge/Charge error The orange indicator on the upper left turns on when the battery is charging and turns off when the battery is fully charged. The indicator starts flashing or does not appear when the USB cable is not working.

Tare operation The orange indicator on the lower left turns on when the Tare button is pressed.

Ounce indicator The green indicator on the upper right turns on when the weight is measured in ounces.

Espresso Mode indicator The green indicator on the lower right turns on when in Espresso Mode.

Error Codes

Error Code Error 100 Error 101 Error 102
Error 303
Maximum Underload
Error 304
Error 802 Error 803

Description Access Code Error, unrecognized access code. EEPROM error, unable to access memory. Please contact Acaia support. AD error, unable to access weighing signal. Please contact Acaia support. Unable to find acceptable starting Zero point, most likely because the loadcell has been damaged by excessive force or drop. Please contact Acaia support. Overload: the weight is over the maximum capacity. Underload: the weight is under the minimum capacity. Calibration error. Calibration cannot proceed when environmental noises are too strong. Please calibrate in a stable environment free of wind, vibration, etc. Unable to tare because the weight exceeds the acceptable tare range. Unable to tare because the weight is unstable.

Other

Display Code Description

UPDATE

The scale is in update mode. During the update process, the green LED on the lower right will blink until the process is complete. Note: If you want to leave update mode, please connect the scale’s USB to a power source.

Specifications

Model Product Weight Product Dimensions Maximum Capacity Minimum Weight Measuring Units Readability Repeatability Linearity Indication Limit Power Supply Battery Battery Life Display Material Connectivity
Inside the Package

PS001 / PS002 620 g ± 5 g W: 160 mm L: 160 mm H: 32 mm 3000 g / 105.82 oz
0.1 g gram, ounce 0.1 g 0.1 g 1 d (d = 0.1 g / 0.5 g) 3090 g / 108.99 oz 5 V / 500 mA Lithium-ion rechargeable 3.7 V 2200 mAh Up to 16~40 hours Dot matrix LED PC Bluetooth 4.0 Acaia Pearl Model S Coffee Scale (White / Black) x 1 Heat Resistant Coaster (Round) x 1 Micro USB Charging Cable x 1

Copyright
This user manual is protected by copyright. All rights reserved. No part of this manual may be reproduced, processed, duplicated or published in any form by photocopying, microfilming, reprinting or any other method, in particular electronic means, without the written consent of Acaia.
© Acaia, California, 2022.