Ametek Drexelbrook Z-tron Level Control 502-302X Series Installation And Operating Instructions Manual page 17

502-302 Series Z-tron
X
4.2 Calibration of
Horizontal Sensing
Elements (cont.)
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TM Level Control
e. Increase the material level until it is well above the
sensing element.
f. Counting the number of turns, turn the adjustment
slowly clockwise (CW) until the relay once again just
operates or you come to the end of the adjustment
travel. This is the tune point in material.
g. Turn the adjustment back counterclockwise (CCW)
half the number of turns that were counted.
CALIBRATION IS NOW COMPLETE.
For recalibration purposes, record half the
number of turns that were counted (in step f.
above) as "Preload," (referred to in section 4.4).
If less than ¼ turn of the adjustment is
observed between the tune point in air and
the tune point in material, please consult the
factory at 1-800-527-6297.
13
Calibration
Note
Note