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Operation
4.3.4.6 Sensor Calibration Screen
The Sensor Calibration screen is provided as a convenient tool for adjusting the sensor scaling offset on site, without a
tool such as a laptop being required. The calibration process is done by entering the actual sensor value as measured by
an external reference source such as a gauge board, EPB or thermometer.
Note: The user must be logged in first. The calibration screen is then accessed by pressing the Enter from the
desired sensor’s status screen.
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The top value on the display is the current, unadjusted sensor value reading. This is the value as it would be with the
offset set to zero (y=mx+0). I.e. Raw value (x) multiplied by the multiplier (m).
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The middle value is the interim calibration offset that is calculated continually by the iRIS, subtracting the unadjusted
value from the target value being entered via the keypad.
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The bottom value on the display is the target value which is entered by the user to match the actual value measured
externally. Note: When this screen is first shown, the target value will be set to zero.
SENSOR CALIB
Scaled: 1.234
Offset: 0.000
Final: 1.234
Increment / decrement target value on bottom line.
Note: If Enter is pressed while either the + or – key is already
down, the interim target value is reset to zero. This is useful
when removing a value that is excessive.
Multiply PIN number by 10 or accept PIN number as displayed.
Moves back to Title screen
Multiply the target value by factor of 10
Move to the Calibration Acceptance screen
Either - or +
key held
down, then
Enter
Clears the value back to 0.0
Sensor Calibration Acceptance Screen
The Sensor Calibration Acceptance screen is used to accept or decline the sensor calibration. If Yes is accepted by pressing
the Enter key, the interim offset entered in the calibration screen previously is stored in the sensor’s offset location and
overwrites the previous value.
ACCEPT CALIB?
> Enter = Yes
Other key = No
Move down / up through available options
Accept current selection
4.3.4.7 Totals Screens (DI1 and DI2)
There are two Totals screens which show the running totals for the digital inputs, DI1 and DI2 if the input is acting as a
source for a sensor.
The values presented represent yesterday’s total, the total so far today and the grand running total since the totalisers
were last reset.
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