Tornatech GPU, Руководство по установке и обслуживанию, Страница: 47 / 67

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Suction Pressure: To set the pressure system unit, go
the “Config” page. All pressure transducers share the same
unit.
The “suction pressure” sensor shares the same analog input (AI4) as the water level sensor. Only one of them can
be installed at all time. Prior to installing one of them, the other one must be uninstalled by visiting its own sensor
page.
Flow: The “Flow” sensor shares the same analog input (AI3) as the spare temperature sensor. Only one of them
can be installed at all time. Prior to installing one of them, the other one must be uninstalled by visiting its own
sensor page.
The “Unit” button is located just right of the “Installed” selection. Click on it to select the appropriate “Flow” Unit, the
factory pre-set unit is the GPM.
Flow Start:
-
Enable/Disable the “Flow Start” condition by pressing the square button. If this alarm is Enabled, it will also start
the engine by means of a “FLOW” request.
-
Alarm Bell Icon: Activates the bell when a “Flow Start” occurs.
-
Alarm Icon: If selected, the “Flow Start” event will be an alarm. If unselected, it will be a warning.
-
Value: Flow value at which the “Flow Start” event will change state.
-
Timer On: Timer used to buffer the activation of the “Flow Start” signal by the ViZiTouch.
Water Level: The “Water Level” sensor shares the same analog input (AI4) as the suction pressure sensor. Only
one of them can be installed at all time. Prior to installing one of them, the other one must be uninstalled by visiting
its own sensor page. The “Water Level” sensor has no unit, since it is monitoring the “Water Level” as a percentage.
Spare Temperature: The “Spare Temperature” sensor shares the same analog input (AI3) as the Flow sensor. Only
one of them can be installed at all time. Prior to installing one of them, the other one must be uninstalled by visiting
its own sensor page. The “Unit” button is located just right of the “Installed” selection. Click on it to select the
appropriate “Spare Temperature” Unit, the factory pre-set unit is the Celsius.
Fuel Level (GPD Model Only): The “Fuel Level” sensor has no unit, since it is monitoring the “Fuel Level” as a
percentage.
The Calibration method is the same for all sensors.
CALIBRATION:
The Calibration button: (“Level 2” security for the choice of calibration, but “Level 1” security for the calibration
procedure itself.) There are 4 ways to calibrate every sensor:
- 0-10V: Theoretical calibration with 0-10V sensor. Simply enter a value in the system pressure unit for 0V and
another value for 10V. Click on the “Apply” button to confirm the calibration. The resulting measured pressure is
shown in the lower right corner of the “Sensor” box. Make sure the dipswitch package right below the “T” terminals
is set to “0-10V” for that particular sensor (refer to the drawing). The switches are labelled and are each linked to
one analog input, in this case “1 or 2”. *Important Note: A set of jumpers is also associated with each analog input.
MAKE SURE THE CONTROLLER IS COMPLETELY POWERED OFF BEFORE MOVING A JUMPER. THIS
INCLUDES REMOVING THE AC AND DC POWER. The jumpe
r can be placed on “5Vdc”, “12Vdc” and “Vaux” and
represents the powered DC value of the sensor. The factory pre-
set position is “5Vdc”. If an installed sensor has a
power value of “5Vdc”, then the “0-10V” theoretical calibration must be calculated accordingly. Please contact
manufacturer for more information.
- 4-20mA: Theoretical calibration with 4-20mA sensor. Simply enter a value in the system pressure unit for 4mA and
another value for 20mA. The procedure explained above also applies in this case.
-Field Calibration: This is the factory pre-set method and the only one that is an actual calibration. Selecting this
calibration method will generate the Calibration box situated in the lowest part of the sensor page. It is very
important that the same care is used when selecting the appropriate dipswitch setting and jumper position. Please
refer to the “0-10V” section above.