High measurement quality
- leva! supports
temperature sensors, pressure sensors, flow meters and Bluetooth
LE scales to measure and control temperature, pressure, volume,
flow rate and weight.
- leva! supports
digital factory-calibrated TSic precision temperature sensors.
Accuracy exceeds Pt100 Class B.
Ultimate temperature
control with PID algorithm
- Dual channel PID
function for up to two heating elements, for example two
boilers or one boiler and one electronically heated grouphead
- Temperature setpoints can
be changed in steps of 0.1°C
-
Different PID configurations can be used during different
states of the machine (warming up, idle phase, shots)
- Two temperature sensors may
be connected simultaneously, for example a boiler sensor and a
grouphead sensor
- Virtual temperature
sensors: Two sensors can be combined into a virtual
sensor, for example to take the temperature of the grouphead into
account.
- Ramp & Soak feature for
programmed heat output during shots to optimize the 25s brew
temperature curve
- Feed-forward temperature
control based on flow meter measurements
- Automatic determination of
PID configuration by auto-tuning program
- Advanced PID configuration
options such as digital filtering and integral wind-up limiting
- Configurable Standby
Mode and ECO Mode to conserve energy
Electronic pump power
control
- Electronic pump power
control for vibration pumps with feedback from a pressure sensor, with nearly stepless power control. This feature gives you
high-quality pressure profiling, for example gradually falling brew pressure
(= lever-style pressure profile).
Example
video
- Paddle support. Use
an electronic lever or the rotary encoder of the display to
control brew pressure manually, on the fly, at any moment in the
shot
- Real preinfusion:
Variable, programmable preinfusion with the desired pressure curve
- Flow tracking: The
firmware can lock the flow rate towards the end of your shots
- Flow rate control at the
beginning of shots (before pressurization)
Pressure profiling control loop with
pressure sensor |
Information at your
fingertips
- Four lines of output on an
OLED display (optional) convey useful information: Temperatures, setpoints,
heat output, pressure, shot volume, shot weight etc.
- Comfortable text menus
instead of 7-segment numerical displays:
- OLED brightness controlled
by firmware
- PID controllers switch
power rapidly, which normally leads to a flickering boiler lamp.
With leva!, you
will not have to endure a flickering lamp because it offers a
lamp replacement in form of a firmware-controlled, white,
dimmable LED to convey useful state information.
- Automatic dimmable
grouphead illumination
Apps for Android, Windows,
Linux and Mac OS X
- leva!
continuously transmits measurements to a PC or Android device
connected by WLAN, where they can be viewed as real-time plots
in apps. Visual and numeric presentation of live data
permits unprecedented insight.
- The apps let you use your
mobile devices and computers as Virtual Display if you install the hardware without
a physical display
Real-time plots of live data on your
computers (Windows, Linux or MacOS X) and Android devices
App running on a tablet
(optional) on an espresso machine
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Dosing, Descaling and
Flushing
- Dosing feature for
dispensing programmed amounts of product with the desired
flow rate or pressure profile.
leva! supports dosing by time, by water volume (flow meter)
or by weight (gravimetric dosing with Bluetooth scale). Supports Felicita
Arc, Skale 2 and Eureka Precisa scales.¹
- Brew ratio calculator
- Automatic cup detection:
Assign doses and/or pressure profiles to cups identified by
weight
- leva!'s warm-up program
can drastically reduce warm-up time by flushing hot water
through the machine
- Customizable
descaling program
Gravimetric dosing with wireless
Bluetooth scales. Left to right:
Eureka Precisa¹ (= Krell CFS-9002), Skale 2,
Felicita Arc |
Dual boiler support
- Support for steam boiler
on/off switch
Monitoring and safety
features
- Monitoring of water
filter's liter throughput
- Water hardness
calculator and limescale buildup monitoring
- Backflushing reminder
- Safety functions monitor
the on-times of heating elements, pump and valve and turn off
the machine or sound an alarm if a problem is detected.
Invisible
- Support for internal
installations without display. Wireless configuration by
computers/Android devices .
- Instead of a full display
module, a hidden rotary encoder can be installed as temperature
selector.
Training functions
- Acoustic and optical
(display) shot timer to make by-the-rules espresso with perfect
25s timing
- Ready-beep signals when the
machine is thoroughly heated up
1: Note that a non-Bluetooth
version of the Eureka Precisa exists; be carfeful when buying.
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