Gime HT 21 - Boiler Probe and Flow Meter Alarms; Short Circuit Boiler Probe Alarm; Disconnected Boiler Probe Alarm; Absence of Flow Meter Signal

Manuale d’uso per machine da caffè GIME HT21-2013. Con riserva di modifiche.
User Manual for GIME HT21-2013 Espresso Coffee Machines. Specifications subject to change without notice.
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 SHORT CIRCUIT BOILER PROBE
In case boiler temperature sensor in short circuit or in the case of temperature for 5 consecutive seconds above a certain value is
given alarm indication and turns off the heating.
The alarm threshold is 128 ° C.
Flashes on the display appears:
Alarm
Boiler temp.
The alarm will disappear when the temperature returns to acceptable values.
 BOILER TEMPERATURE SENSOR DISCONNECTED OR INTERRUPED
In case of boiler temperature sensor disconnected or interrupted or determining a temperature around 0 ° C, within 5 seconds,
the alarm indicationdate appears on the display and it is off the heating.
Flashing on the display appears
T.ProbeUnconnect
 ABSENCE OF FLOW METER SIGNAL
When the display shows the indication...
Alarm
Flow Meter Gr.X
It means that the central box did not receive signal corresponding to the flow meter activated group (x).
In fact, the central box, after starting each volumetric dose (EVX + PUMP both during delivery and programming) verifies the
correct operation of the volumetric meter through the detection of the signal sent by the microcontroller.
If no pulse is detected for longer than 5 consecutive seconds, the LED on the selected dose begins to flashing (½ OFF ½ ON).
After 1 minute (Time-out flow meter) of permanence of signal absence
from the flow meter, the dose is stopped automatically.