Taylor-Wharton 24K w/ AutoTend - Manual (Page 33)

the sensor tube and remove the sensor leads from the plug.
Making Adjustments to the KRYOS Sensor Assembly
The factory settings for the KRYOS control system are as follows:
•
Low Level Alarm = 2 (Always 1” below the start fill)
•
Start Fill Sensor = 3
• Stop Fill Sensor = 6
•
High Level Alarm = 7 (Always 1” above the stop fill)
The sensor assembly is pushed to the bottom of the refrigerator as delivered from the
factory. If adjustments need to be made, the following procedure will simplify the
process.
• Determine the range of LN
2
level in the refrigerator (i.e. Start Fill = 9; Stop Fill =
12)
•
Determine the appropriate offset by subtracting 2 from the Start Fill. (i.e. Offset =9
–2 = 7)
•
Set the sensor assembly so that the very bottom of the assembly matches the
desired offset. This can be done as follows:
• Push the sensor down the sensor tube until it touches the bottom of the refrigera-
tor.
•
Mark the sensor wire where it emerges from the top of the sensor tube.
•
Using the marked wire as a reference, pull the sensor up the same distance as
the offset setting.
The sensor assembly is now in the correct location.
To make adjustments to a sensor assembly in a refrigerator filled with LN
2
, the
following procedure can be used:
• Measure the LN
2
liquid level in the refrigerator.
•
Take this measured level and subtract the offset to determine how many sensors
should be in liquid.
• Go to “Test Level Sensor” through the KRYOS menu (MENU, 2,1). “L” means a
sensor is in liquid while “G” means a sensor is in gas.
•
Move the sensor up or down so that the appropriate numbers of sensors are in
liquid (read “L”).
• Get back to the KRYOS main screen and the level indicated should match the
physically measured reading.
The Sensor Offset, the Start Fill and the Stop Fill can all be set through the KRYOS
menu system (MENU, 2).
Making Adjustments to the Kryos Sensor Assembly:
The factory settings for the Kyros control system are as follows:
•
Low Level Alarm = 2 (Always 1” below the start fill)
•
Start Fill Sensor = 3
• Stop Fill Sensor = 6
•
High Level Alarm = 7 (Always 1” above the stop fill)