925-0322 Rev C
0415
Solids Flow Detect Model FD-2000
Calibration Procedure
With the sensor mounted in position and wired, unscrew the enclosure cover to expose
the control plate. Then follow these steps:
1. Start with the DIP switches set as follows:
a. Switch 1 on for a FLOW OUTPUT.
b. Switch 2 off for FLOW DELAY 3 SEC.
c. Switch 3 off for NO FLOW DELAY 3 SEC.
d. Switch 4 off for SENSITIVITY LOW.
e. Switch 5 off for VIBRATION FILTER OFF.
2. Turn the SENSITIVITY, FLOW DELAY and NO FLOW DELAY controls fully counter
clock-wise for their minimum setting.
3. With no material flowing (the OUT indicator should be off), slowly turn the SENSITIVITY
control clock-wise until the OUT indicator turns on or until the control is at maximum.
Note the actuating point for the no-flow condition.
4. Start material flowing and slowly turn the SENSITIVITY control counter clock-wise until
the OUT indicator just turns off. Note the actuating point for the flow condition.
5. Turn the SENSITIVITY control midway between the no-flow and flow actuating points.
If vibration is causing unwanted detection or increases the receiving level of the no-flow
condition, then set DIP switch 5 to VIBRATION FILTER ON and repeat steps 2 to 5. If the
flowing material is not detectable or there is very little margin between the no-flow and
flow actuating points, then set DIP switch 4 to SENSITIVITY HIGH and repeat steps
2 to 5.
6. In order to detect irregular flow, set DIP switch 2 and adjust the FLOW DELAY control
as needed.
7. In order to not detect irregular flow, set DIP switch 3 and adjust the NO FLOW DELAY
control as needed.
8. If the desired output is for indication of no flow, then you can set DIP switch 1 for
NO FLOW OUTPUT.
