8
INSTALLATION & OPERATION MANUAL
SONAC/120 LIQUID LEVEL SWITCH
DECEMBER 2008 REV 1.0
3.3
Calibration
3.3.1
Set Time Delay Control 20 turns
clock-wise Gain Control 20 turns counter-
clockwise.
3.3.2
With the product level below the
sensor,(sensor is dry) apply power to the
control unit.
3.3.3
At this condition the RED LED should be
on and disregard the YELLOW LED.
3.3.4
Turn the Gain Control clockwise until the
RED LED just goes out (this will be the lower edge
of the window). Counting the turns, continue turning
the Gain Control clockwise until the RED LED just
come on again (this will be the upper edge of the
window).a
3.3.5
Now turn the Gain Control ½ of the amount
counterclockwise (this will be in the center of the
window). SEE BELOW
3.3.6
Set the Failsafe Switch to the position
required for your application. (See 3.2.1)
3.3.7
Set the Time Delay to the value required by
your process by rotating time delay control CCW.
NOTE:
Time Delay Control Position.
Full Clockwise - Greater than 10 seconds.
Full Counter-Clockwise - Less then 100
milliseconds.
3.3.8
System is calibrated
4.0 MAINTENANCE & SERVICE
4.1
One-Year Product Warranty
DELAVAN PROCESS INSTRUMENTATION, control
products will be replaced, put in good operating condition,
or the purchase price refunded, at the option of DELAVAN,
free of charges except transportation, if defective in their
manufacture, labeling, packaging, or shipping, and if notice
of said defect is received by DELAVAN within one year from
the date of shipment. The cost of such replacement, repair
or refund of purchase price shall be the exclusive remedy
for any breach of any warranty, and DELAVAN shall not be
liable to any person for consequential damages for injury or
commercial loss resulting from any breach of any warranty.
DELAVAN make no warranty of fitness for a particular
purpose, and makes no other warranty, express or implied,
including implied warranty arising from course of dealing
or usage of trade.
3.3.1
3.3.5 set point
3.3.4
red on
gain pot rotation CW
3.3.4
red on
red out
