811-1005-E01 Datasheet, PDF (16/28 Pages) Magnetrol International, Inc. – Kotron® Model 811 RF Point Level Sensor

1.9 Calibration—Wide Differential
1.9.1 Set Point Adjustment Control
1. Turn on power to the instrument.
2. Remove housing cover.
3. Adjustments
3.1 Dip switch
a. Fail-safe
ON = high level
OFF = low level
b. Time Delay Direction
ON = delay on rising level
OFF = delay on falling level
c. Short Time Delay (0.5 to 7 seconds)
3 ON, 4 OFF
d. Long Time Delay (2 to 120 seconds)
3 OFF, 4 ON
NOTE: Switch positions 3 and 4 cannot be both ON or both OFF. One
must be ON the other OFF or the LED and relay will remain ON.
3.2 Potentiometers
a. Time Delay
• Allows continuous adjustment of time delay within
limits of DIP switch range chosen.
• Clockwise rotation increases delay.
b. Differential
• Allows continuous adjustment of pump or valve
control ON to OFF.
• Clockwise rotation increases differential. Full coun-
terclockwise rotation is the narrowest differential and
is used for alarm applications.
c. Coarse
• Allows continuous adjustment of setpoint over entire
range of the electronics (0 to 1000 pF).
• Clockwise rotation raises SETPOINT on probe.
d. Fine
• Allows precision adjustment of SETPOINT within
the limits of the COARSE SETPOINT adjusted
initially.
• Clockwise rotation raises SETPOINT on probe.
13
50-608 Kotron Model 811 RF Point Level Sensor