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9
Freeze/Defrost Cycles
Freezing of the Cryo-Tip probe is controlled manually by the operator
using the footswitch.
1
Ensure that the Cryo-Tip probe is correctly
positioned.
2
Press the footswitch down. Freezing starts
immediately and the digital timer will increment.
3
An audible warning sounds every second during the
freeze cycle and the Freezing Symbol is displayed.
4
In addition there is a graphical indication of probe
performance.
5
De-frosting is achieved by releasing the footswitch.
The timer will stop counting and the Defrosting
Symbol is displayed.
6
Subsequent freeze cycles can be carried out by simply
repeating steps 1-4 as soon as the Ready Symbol is
displayed.
The freezing function is often accompanied by a characteristic ‘pulsing’
sound which indicates that the Cryomatic is regulating the gas to
the optimum pressure for the probe. The ‘pulsing’ may vary or cease
completely depending on the pressure of gas in the cylinder.
If the probe performance drops below 100% permanently check the
cylinder gas pressure or suspect a blocked probe.
Cryo-Tip Probe Disconnection
1
When the procedure is complete the Cryo-Tip probe
can be disconnected by pressing the probe release
button on the probe coupling body.
2
When the probe has been disconnected the system
will automatically check the gas supply in readiness
for the next use. This will be indicated by an activity
bar with the Cylinder Symbol.
3
When this short check is complete the system will be
ready for the connection of another Cryo-Tip probe.
The system shuts off the gas supply immediately the Cryo-Tip probe is
disconnected providing a safe condition in the event of inadvertent
operation of the release button.
It is not recommended that the Cryo-Tip probe is disconnected during
use as this could result in a pressure lock within the probe assembly
which may make reconnection more difficult.
5. Operation
