Ametek Z-tron IV, Инструкция по установке и эксплуатации

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Calibration
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4.2 Calibration in Insulating Material [Horizontal Mount]
The following procedure is for high level fail-safe. If the unit
is set for low level fail-safe LED operation will be opposite:
1) Quick Calibration (Either Veritical or Horzontal):
a) Be sure the material level is well below the sensing
element. See Figure 4-1.
b) Turn the setpoint adjustment counterclockwise
(CCW) until the red LED is on (red LED on indicates
that the relay is de-energized and the unit is in the
alarm condition).
c) Turn setpoint adjustment slowly clockwise (CW)
until the relay just operates. (red LED off).
d) Turn setpoint adjustment an additional ½ turn CW.
Red LED will remain off
e) Calibration is complete
2) Optimal Calibration:
a) Be sure the material level is well below the sensing
element. See Figure 4-1.
b) Turn the setpoint adjustment counterclockwise
(CCW) until the red LED is on (red LED on indicates
that the relay is de-energized and the unit is in the
alarm condition).
c) Turn setpoint adjustment slowly clockwise (CW)
until the relay just operates. (red LED off).
d) Increase the material level until it is well above
the sensing element. See Figure 4-2. (LED changes
state).
e) Note the position of the screwdriver.
f) Counting the number of turns, turn the setpoint
adjustment slowly clockwise (CW) until the relay
once again just operates.
If less than one turn of the adjustment was observed
between the sensing element covered and uncovered,
the sensor is not generating enough signal. Consult
the factory for further options.
g) Turn the adjustment back counterclockwise (CCW)
one half the number of turns that were counted.
h) Record number of turns and save for future
calibration reference
i) Calibration is now complete.