Thermo Scientific Cryo 740 Series, Operating And Maintenance Manual

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7000740r7 Cryo Series 2-3 Thermo Scientific
Section 2
Operation
High and Low Level
Sensors Adjustments
Factory default sensor settings are:
3-inch (±1/2”) - Low Level (start fill)
5-inch (±1/2”) - High Level (stop fill)
High Alarm set point is always 1 inch above the High Level setpoint
The following procedures are used to change the high and low level sensor
settings. Refer to illustration above.
1. Open the lid and remove the access panel cover on the right rear of
the cabinet.
2. Slide clamp off of the sensor wires.
3. The double tie-wrap on the sensor wires are the 3-inch low level and
the 5-inch high level settings.
Caution Allow probe to warm up for 30 minutes before removing from
tube. Pulling probe completely out of the tube when cold could damage
probe.
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Figure 2-2. Sensor Adjustment