HALYTECH
Illuminator User Manual
Page 35
If not already displayed, access the “Change Setup” page as described in “Setting up an
Illuminator for the first time” earlier in this section. Select ”Calibrate Light Level” from “Select
Input to Calibrate or Scale”. A page giving calibration choices will be displayed. Select “2-
point calibration” and click on “Proceed”.
The following page will be displayed:
Follow the instructions step by step.
NOTE: The two calibration points can be any two values within the transducer range.
However, they must be at least a half of the transducer range apart.
For example you could cover the light sensor for the first “0” point and then use a light meter
to get the actual reading of ambient light for the second point.
You can exit at any time without making changes by clicking the “Cancel” link.
Save the new values by clicking on the “Save” button.
Manual calibration
User inputs are calculated with the following formula:
Calibrated value = Scaler x (Raw Value) + Offset
Manual calibration allows direct entry of the “Scaler” and “Offset” quantities.
(The same formula is used in the 2-point calibration. The 2-point calibration procedure
automatically calculates the “Scaler” and the “Offset”.
Viewing Current Inputs
Current inputs are displayed by clicking “Inputs” on the blue menu pane on the left. All inputs
are identified by their user-programmed names.
The display shows the state of all inputs at the time the page was displayed. The page
automatically updates every 10 seconds.