Despatch RBC1-50 with Protocol Plus - Manual (Page 34)

30
11.
When the chamber temperature is above
setpoint on control, the cooling output of
the control will start cycling the liquid
nitrogen (LN
2
) solenoid valve, which will
cool the chamber.
WARNING:
Failure to heed this warning can
result in severe frostbite to eyes or
skin. Do not touch frosted pipes or
valves.