La Marzocco Linea PB User Manual

Quick Start Guide

linea pb With Scales (Auto Brew Ratio – ABR)

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Entering Programming

• Hold G1B3 for five seconds until “Group Dose Setting” appears.

• Navigate menus and adjust variables using B1, <— or −, and B2, —>
or +. Use B3 to enter and confirm changes.

1. main switch

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placed on the scale after the tare time, the weight of the cup will be
counted toward the final beverage mass. Also, any coffee that has
made it into the cup before the tare time will not be counted toward the
finalbeverage mass.

2. pressure gauge

3. brew groups

4. control

5. keypad (G1)

6. digital display

7. steam wand

8. steam knob

9. hot water dispense nozzle

10. removable drip tray

11. scale platform

12. water inspection window

B1. single espresso
B2. double espresso
B3. continuous

Set Group Mode

Setting Tare Time and Stop-Early

• Enter programming and navigate to “Scale Configuration.”

• Set “Stop #.#g early”
The “Stop #.#g early” parameter is an offset, which closes the brew
valve before the target beverage mass is reached. The purpose of this
is to allow for the residual liquid in the portafilter to complete the
beverage, without going over. You can set it for each button, both short
and long doses; the short doses are used in BREWRATIO mode also.
A good starting point to decide this value is to brew a shot in mass
mode. Set your target beverage weight, example 40 g. Pull a shot using
this program and note your final beverage weight, example 43.5 g.
Now subtract your beverage weight from your target weight to get your
stop-early offset, 43.5 g – 40 g = 3.5 g. You may need to adjust this
depending on your flow rate.

• Set “Scale Tare Time”

The “Scale Tare Time” parameter sets at what moment the machine
will tare the cup. The goal is to allow the barista a few seconds after
starting the shot to place the cup on the scale tray. If the cup is

Enter programming and select the mode per group. “Group Dose Settings” >
“G# Dose Settings” > “Group # Mode”

Brewing with “Continuous”

The continuous mode is a manual mode, and will not self-terminate. Note:
“G#B3 Mode” must be set to “CONTINUOUS” to use this mode. It cannot be
set to “3 SEC RINSE.”

• Load portafilter to desired dose, engage in group.

• Start shot using B3, making sure cup is in place before the
programmed tare time.

• The weight of the beverage will appear live on the display as the shot
brews.

• Terminate shot manually when desired beverage mass is achieved, by
pressing B3 again.

Brewing in Mass Mode

Checking/Calibrating Scales

In mass mode, the brew cycle will terminate once a programmed beverage
weight has been reached.

• Enter desired target beverage mass in programming.

• Load portafilter to desired dose, engage in group.

• Start shot using programmed button.

• The target weight will display until the tare time, at which point the
scale will be tared.

• The shot will self-terminate, using the stop-early parameter, so the
programmed beverage mass is reached.

Brewing in BREWRATIO mode

In BREWRATIO mode, the machine will calculate your target beverage mass
by applying your programmed brew ratio to your measured input dose.

Calculating Brew Ratio

The brew ratio is the ratio of dry coffee weight to beverage weight. Example:
18 grams dry coffee : 36 grams beverage weight would be a 1 : 2 brew ratio.

First Enter Portafilter Weight

• Hold G1B2 for 2 seconds until is displayed.

• Wait until is displayed, place portafilter on scale tray, making sure
the lip of the portafilter sits in the crescent shaped cutout.

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PF

PF

█ █ █

Enter Desired Target Brew Ratio in Programming

• Load portafilter to desired dose.

• Hold B1 on desired group for two seconds, until is displayed.

• Once the weight of the portafilter is displayed (as a negative value,

• Engage the portafilter in the group.

• Start shot using programmed button.

• The target weight will be calculated based on the programmed brew

• The shot will self-terminate, using the stop-early parameter, so the

COF

ex: )place loaded portafilter on scale tray, making sure the lip of the

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portafilter sits in the crescent shaped cutout. The keypad will flash once
the dose is recorded.

ratio and displayed until the tare time.

programmed beverage mass is reached.

COF

█ █ █

Your scales come calibrated from the factory. It is good practice to calibrate
them again upon install and/or when the machine has changed locations.

To Calibrate:

Caution: anytime the drip tray is removed, it is best practice to place a blind
portafilter basket in each group to prevent water from dripping onto the scale
electronics.

• Remove scale platforms and drip tray.

• Enter technician level programming by holding G1B3 for 10 seconds
until prompted for a password. (Technician level password: B1, B2, B3,
B1, B2, B3).

• Navigate to “Scale Configuration Settings” > “Calibrate G# Scale.”

• Follow on-screen instructions.

¤ Empty scale, press enter.

¤ Place 100g weight on scale, press enter.

The display will flash values for three variables: Ratio, Trials and Quality.
Record these values, and compare to the chart below. If any of these values
are outside of the specified range, ensure there is nothing touching or
interfering with either the load cell or scale plate. Recalibrate. If any of
the values are still out of the specified range, contact Aftersales Solutions.
Repeat process to calibrate additional groups.

Ratio 350-400

Trials 2-6

Quality The difference between the two number should be <300

To Check Calibration:

• Enter technician level programming by holding G1B3 for 10 seconds
until prompted for a password. (Technician level password: B1, B2, B3,
B1, B2, B3).

• Navigate to “Scale Configuration” > “Start Scale Testing.”

• When the █ █ █ stops blinking, 0.0 ± 0.1 g should be displayed for
each group scale.

• Place the 100.0g weight on each scale.

• Display should show 100.0 g ± 0.1 g.

• If scale is outside of range, either at 0.0 or 100.0, or the reading is
noisy, ensure there is no mechanical shunting. Ensure nothing is
interfering with the load cell or scale platform. If the drip tray and
portafilter platforms are in place during testing, ensure the drip tray is
properly oriented with the holes toward the barista. Recalibrate. If any of
the values are still out of range, contact Aftersales Solutions.

Aftersales Solutions | 206.706.9104 x.101 | [e-mail]