Sensor Calibration; Pressure Sensor - Italtecnica Sirio Manual Del Usuario

5.0

SENSOR CALIBRATION

ATTENTION: Do this only if necessary! Improper calibration of the flow and pressure sensors may compromise the correct operation
of the device.
To access the sensor calibration menu, keep the "+" key pressed during unit start-up and the inverter will display the initial screen for
pressure sensor calibration. Once the device has started, release the "+" key and follow the calibration instructions indicated below.
5.1 PRESSURE SENSOR CALIBRATION
Sensor pressure calibration is performed in two stages, where the device is first pressurized to 0 Bar and then to a value close to 5 Bar.
During these two stages, the electronic board acquires the values read by the pressure sensor and by interpolation it calculates the entire
value readings scale .
CALIBRATION AT 0.0 BAR
(3.0)Calibration of pressure sensor at 0.0 Bar: On starting the device and pressing and holding the "+" key,
Calibr.
calibration at 0.0 Bar is displayed . Make sure that the pressure value displayed is zero inside the device and then press
0.0 BAR
the central key to confirm and store the reading. The unit will automatically display the next calibration value of 5.0
Bar.
(3.1)Pressure sensor calibration at 5.0 Bar: During this phase, the unit must be pressurized to approximately 5 Bar
Calibr.
using the external pressure gauge as a reference. After stabilizing the pressure inside the device, align the value on the
5.0 BAR
display with that indicated on the external pressure gauge by pressing the "+" and "-" keys (for example, if the pressure
gauge shows a reading of 4.6 Bar, set the reading on display to 4.6 Bar). Confirm the pressure sensor calibration value by pressing the
central key. The device will automatically show the next screen for flow sensor calibration.
CALIBRATION AT 5.0 BAR
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INTERPOLATION
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