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General| Brand | Thermo Scientific |
|---|---|
| Model | 994 |
| Category | Freezer |
| Language | English |
Explains the functions of the control panel interface and its components.
Details how to navigate and use the freezer controls via the keypad.
Instructions for safely removing the freezer from its packaging and pallet.
Guidelines for selecting an appropriate and safe placement for the freezer.
Steps for connecting the freezer to the main power supply safely.
Steps for initial system startup and setting configuration parameters.
Guide for adjusting the internal temperature set point of the freezer.
Instructions for configuring the upper temperature limit alarm.
Instructions for configuring the lower temperature limit alarm.
Procedure for calibrating the main temperature control probe for accuracy.
Table detailing alarm types, delays, ringback times, and relay status.
Description of the condition causing high stage compressor and fan failure.
Explanation of alarms triggered by sensor failures and their effects.
Overview of recommended preventive maintenance tasks and their frequencies.
Explanation of the built-in backup system for maintaining temperature during power failures.
Instructions for configuring the BUS for different gas supplies and settings.
Procedure for setting the temperature threshold for the BUS activation.
Technical specifications for various single-door freezer models.
Technical specifications for various double-door freezer models.
Detailed schematic illustrating the cascade refrigeration system components and refrigerant flow.
Electrical diagram for the High Stage compressor and associated components.
Electrical diagram for the Low Stage compressor and associated components.
Details the standard warranty coverage and terms for Thermo Fisher Scientific freezers.
Guidance on immediate actions and treatments for cold exposure from cryogenic materials.
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