(To disable a brew button select a water flow time of less than 10seconds.)
Table 1
WARNING- The urn will overflow at volumes of over 6.1L, if preheating your urn using no
coffee it is best to use a lower volume.
NOTE- * A certain volume of Brew water will be retained in the coffee grinds and so the
Coffee volume will be less than the Brew Water volume. This will depend on the Coffee grind
and weight. Trails will be required to determine this volume. On average 1gram of coffee
absorbs 2ml of water.
Verification of Volume Settings:
1. Select a brew and measure the actual water output, if it is too low or too high a volume
you can recalibrate and extend or reduce your water flow time. e.g. if you set brew 1 to have
a water flow time of 3min you would expect to get 6L (as the flow rate is approx 2L/min), if
you got 6.1L then you will want to reduce it by 100ml –assuming the estimate of 33.3ml per
second of time this would be a 3 second reduction from the original 3mins. So you would go
to water volume settings and select a flow time of 2min 57sec.
2. If you need to recalibrate any brew button follow the calibration instruction for that button.
Once you have recalibrated the required brew button press the power button to save this
new setting. It is not necessary to recalibrate the other brew buttons. Pressing the power
button in calibration mode will only save the settings which have been changed. All
previously saved settings will remain.
3. Recalibration can be carried out on both the Volume Calibration and Brew Time
Calibration settings.
