Sample Thermocouple Connection; Power-Up - Thermo Scientific 7451 Operating And Maintenance Manual

Section 2
Set-Up and Operation
Sample Thermocouple
Connection

Power-Up

2-4 Controlled Rate Freezer
Non-IVF models
1. Open the unit door.
2. Locate the thermocouple connector in the front upper right corner of
the chamber.
3. Install the supplied sample thermocouple in the correct orientation.
4. Close the unit door.
IVF models
1. Locate the thermocouple connector on the top of the unit, to the left
of the printer cover (refer to Figure 1-1).
2. Install the appropriate supplied sample thermocouple in the correct
orientation.
Note The freezer has been calibrated at the factory with the 1.2/2.0ml
sample thermocouple probe installed in the internal thermocouple
connector. See Section 3 to calibrate an external thermocouple probe.
1. Turn the freezer power switch on the back of the unit to On.
2. On the control panel, the Alarm indicator lights briefly, and the LCD
display reads Controlled Rate Freezer XX (XX = software version).
3. The Idle indicator lights, then the LCD display shows the profile list.
4. To choose a profile, scroll through the selections using the up/down
arrow keys. The profiles are displayed in a loop. Pressing either of the
arrow keys consecutively brings the list back to the starting point.
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