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9.1.3.13 Calibrating the engine speed
Under no circumstances should the fire pump set be
operated, when the belt guard is not in place and suitably
secured.
Do not place fingers, hands, tools, etc. into any shaft seal
opening.
This operation must be carried out by a qualified
personnel.
Make sure to restore the protection in the area of the
mechanical seal once the work is finished.
To detect the exact speed of the engine, remove the
protection in the area of the mechanical seal of the pump,
and read the rotation value using an optical tachometer
oriented towards the shaft.
1. Set the key selector to position 0, and choose the value in the
SPEED CALIBR. parameter.
2. Set the maximum engine speed.
• Refer to the specific engine model.
3. Remove the pump shaft guard.
4. Check the effective speed of the engine with an
optical tachometer.
Speed check (optical tachometer not included in the scope of
supply)
5. Set the correct value on the control panel.
6. Confirm by pressing the ENTER button.
7. Set the key selector to TEST position.
8. Start the engine at maximum speed, and wait for the
calibration to complete.
The display shows "?CAL?" until the calibration completes. After
that, the speed set in the parameter appears.
The calibration process takes a few seconds.
9.1.3.14 Setting the Engine ON parameter
1. With the selector in TEST position, start the engine at minimum
speed and wait until the engine speed stabilises.
2. Set the key selector to position 0, and select the
parameter "Engine ON calibration".
3. Select YES, then press ENTER.
The display shows "?CAL?" which flashes until the calibration is
completed.
The self-learning process takes a few seconds.
9.1.3.15 Alarms
As required in the EN 12845 standard, the duty
pump cannot be stopped by any alarm. The duty pump
can only be stopped manually unless in applications with
hose reel systems, where the duty pump can be stopped
automatically by an internal timer.
The DPC 300 control panel displays the alarms described below.
The alarms can be grouped into two categories:
•
Memorised type - these are constantly displayed even when
the alarm is no longer present. The memorised alarm
condition can be reset by pressing the button R (only if the
cause is removed).
Alarm
Description
Battery 1 voltage is less than 9.6 V or
Battery 1
greater than 16.2 V.
Battery 2 voltage is less than 9.6 V or
Battery 2
greater than 16.2 V.
Low engine oil pressure.
Low oil pressure
The control panel starts to check the oil
pressure 60 seconds after the engine starts.
High engine temperature.
High engine
The control panel starts to check the engine
temperature
temperature 10 seconds after the engine
starts.
The engine does not start after six
Start failure
unsuccessful starting attempts.
This occurs when the system does not
detect any signal from the pick-up speed
sensor while the engine is running. When
Pick-up
this alarm occurs, the display
shows "STOP". If the alarm condition
cannot be reset by pressing the button R, it
is necessary to press STOP button.
•
Non-memorised type - these are displayed only when the
alarm is present. The alarm condition automatically resets once
the cause of the alarm is removed.
Alarm
Battery charger 1 failure
Battery charger 2 failure
Oil/water heater short circuit
Fuel reserve
Mains failure
9.1.3.16 Alarm reset
The alarm signals can be reset by pressing the button R and setting
the key selector to "AUT".
Only the engine start failure alarm will reset after setting the key
selector to "0".
The low oil pressure and high motor temperature alarms will reset
only after the engine is switched off.
Description
Battery charger 1 is inefficient.
Battery charger 2 is inefficient.
The circuit breaker of the oil/
water heater has tripped.
The fuel is running low or the
fuel level drops below 70 % of
the tank volume.
Mains voltage is not present.
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