Ronan X96S WEIGH SCALE - Manual (Page 46)

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Mass Density Low/Reference and High/Calibration
The mass density calibration correlates the detector counts to the mass upon belt. This can be achieved by
several different methods. One method consists of Referencing on Empty Belt. The next step requires
running predetermined weights past the gauge and comparing the indicated weight to the actual weight. For
alternative calibration methods, consult Ronan Engineering.
First you will REFERENCE the system on an Empty Belt. Then you will CALIBRATE the system by one
of the following means, 1) passing or catching a known amount of material through the scale, 2) placing a
static load on the belt that you must weigh or 3) inserting an Absorber Plate of a predetermined value in the
absorber guide (usually located in front of the source holder).
Low Reference
PROCEDURE:
The belt must be empty and running at the normal speed during the Low
Reference.
Using the Ronan local display or HART communicator find the Main Menu;
Scroll down until you reach and highlight Calibration.
Access Calibration by pressing the right arrow key.
Scroll down until you reach and highlight Cal Weight.
Access the Cal Weight by pressing the right arrow key.
Scroll down until you reach and highlight Low Reference.
Access the Low Reference by pressing the right arrow key.
Access the Reference by pressing the right arrow key.
Press the F4 key (OK) to the prompt ‘Warning – Remove loop from automatic control
before doing the reference procedure’.
Press the F4 key (OK) to the prompt ‘Verify that source is on, detector output is correct, and process is in
reference condition’.
Wait until the prompt changes from
‘Performing Calibrate procedure’ … to ‘Low speed calibrate SUCCESS. Remember to enter
speed’.
Press the F4 key (OK).
Scroll down until you reach and highlight Ref Weight 0.0000 lb/ft. (Note 0.0000 lb/ft value and units may
very depending on the what value and units were selected.) (Note: You must access the Ref Weight and
either change or acknowledge the value to complete the reference.)
Access Ref Weight 0.0000 lb/ft by pressing the right arrow key.
Use the arrow keys to select and change the display value to the correct weight on the conveyor. Once the
displayed value is correct, press the F4 key (Enter). ). The Low Reference is complete.
You must proceed to High Calibration to complete the calibration.