Rice Lake BCi Belt Scale - Installation and Operation Manual Version 2.03 - Manual (Page 54)

48 Installation & Operation Manual
5.0 Calibration
There are two components of the Belt Scale Conveyor system that need to be calibrated for the system to work.
Those component parts include:
• Speed sensor
• Integrator (BCi)
Note
The speed sensor calibration must be done prior to the integrator calibration.
5.1 Speed Sensor Calibration
A belt conveyor scale shall be equipped with a belt speed or travel sensor that will accurately sense the belt speed
or travel whether the belt is empty or loaded.
Use the following steps to calibrate the speed sensor.
1. Select the Belt Calibration softkey from the Supervisors menu.
2. The integrator will change the softkeys to Start , Stop , and Exit .
3. A reference point needs to be marked on the conveyor belt and a reference needs to be marked on the
conveyor frame. This will give the operator a reference to count the number of revolutions the belt
travels during the speed calibration. The more revolutions in a test, the better the speed and distance
accuracy.
4. Press the Start softkey. This will cause the integrator to change screens displayed the number of pulses
counted, the frequency of the pulses and the time the test is running as shown below.
Exit =>
SCALE #1
Start
11/23/2011 08:13AM
96489 Pulse
261 Per Sec
889.25 Time Running
Stop
Figure 5-1. Pulses Counted
The screen illustrates a live display of how the belt is working. If the pulses and frequency are not
changing then there is a problem with the speed sensor and can be a sign that either the wiring or the
sensor itself is bad. During this cycle of the calibration procedure, the operator needs to count the
number of belt revolutions.
5. Pressing the Stop softkey will stop the speed sensor calibration. The integrator will then prompt the user
to enter the number of belt revolutions