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3.3.6 High Level Fail Safe Blind Calibration of Control w/Flush Sensing
Element
(Alarm when chute is full at sensor)
1. Start with sensing element uncovered, (no material at
sensing element), and tuning SetPoint adjustment to the
full counter-clockwise (ccw) position. At this point Red
LED will be ON.
2. Turn SetPoint adjustor clockwise until the Red LED just
turns OFF.
3. Test unit by turning SetPoint adjustor slowly counter-
clockwise, then clockwise (cw) to determine differential of
the electronics.
If ON/OFF differential of LED is more than one quarter
turn, unit is not operating correctly. Please consult
factory service department for assistance. This is a simple
function test of the electronics.
4. If above operation is satisfactory, then continue turning
SetPoint adjustor clockwise:
• One (1) turn for granulars containing moisture. (1 = 4PF)
• One half (1/2) turn for dry insulating powders.
Calibration is Complete
21
Calibration
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