Thermo Scientific 3960, Руководство по эксплуатации и техническому обслуживанию

Страница: 13 / 54

Caution The independent overtemp system is designed as a safety to
protect the incubator only. It is not intended to protect or limit the
maximum temperature of the cell cultures or customer’s equipment inside
the incubator if an overtemp condition occurs.
s
The incubator is equipped with an independent circuit that monitors the
air temperature in the cabinet. The independent overtemp circuit is
designed as a safety for the incubator only. Should the system’s
temperature control fail, this circuit would cut out all heaters when the
cabinet’s temperature reaches the Overtemp setpoint. When an incubator
is operating in an overtemp condition, the temperature control in the
incubator will be ±1°C around the overtemp setpoint.
The overtemp setpoint is set by the factory (default) at 40°C. However, the
overtemp can be reset over a range from 0.5°C above the operating
temperature setpoint to 65°C.
If the incubator’s operating temperature setpoint is set above the overtemp
setpoint, the overtemp setpoint will automatically update to 1°C above the
temperature setpoint. It is recommended that the overtemp setpoint be
maintained at 1°C over the operating temperature setpoint.
To set the Overtemp setpoint:
1. Press the Mode key until the Set indicator lights.
2. Press the right arrow until Otemp XX.X is displayed in the message
center.
3. Press the up or down arrow until the desired Otemp setpoint is
displayed.
4. Press Enter to save the setting.
5. Press the Mode key until the Run indicator lights, or press the right or
left arrow to go to the next or previous parameter.
1-6 29 cu ft Environmental Chamber Thermo Scientific
Section 1
Installation and Start-Up
Set the Overtemp Setpoint