Thermo Scientific TSX Series Installation And Operation Manual page 30

Operation
Table 8: Service Parameters
Screen/Button
9 Press Scan (
10 Press Scan (
11 Press Scan (
12 Press Scan (
13 Press Scan (
14 Press Scan (
15 Press Scan (
16 Press Scan (
26
TSX -20°C Flammable Materials Storage Laboratory Freezers
Display Function
Control Lower
) Cnt lcl
Hysteresis
) door AJAr Door Alarm Time
)
qUA Quality Mode
) bot BOT Mode
Perimeter Heater
)
PEr
Duty Cycle
Control Probe
)
Cnt Prb
Temperature
Ambient Probe
)
Anb Prb
Temperature
)
--- Exit Service Mode
If the unit is left idle for a period of approximately 30 seconds during service
mode, the unit will exit service mode and return to normal operation.
Note If an alarm occurs while in the service mode, it will not show until
exiting this mode.
To reset values back to factory settings, perform the following procedure:
1. Turn keyswitch to "OFF" position.
2. Hold the up (
the "ON" position.
3. Continue to hold buttons for approximately 10 seconds.
4. Release buttons and turn keyswitch to "OFF" position.
5. Turn keyswitch to "ON" position.
Performing this reset will overwrite any changes made after receipt of this
unit and may overwrite any changes that were made at the factory to
optimize performance.
Summary
The degree decrease in temperature from the setpoint
that will trigger the unit to stop cooling to prevent the
unit from getting too cold.
The approximate time the door can remain open
before the door ajar alarm activates in minutes.
Normally OFF(00). Used for production line testing.
Normally OFF(00). If ON(01), the unit is forced to run at
coldest possible temperature for approximately 24 hours.
Defrosts will still occur as scheduled.
Controls the perimeter heater ON time.
Displays control probe temperature (Read only).
Displays ambient probe temperature in deck (Read
only).
Returns to normal operating screen.
) and down ( ) arrows while turning the keyswitch to
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