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Safety Mechanisms
Steritest
®
Red Plugs
Two red safety plugs are delivered with the Steritest
®
devices. They are installed
on the vents on the tops of the canisters, and they pop off if overpressure occurs
in the canisters.
The pressure measurement system of the Steritest
®
Symbio Pump works with
but does not replace the Steritest
®
red plugs safety function. Operation of the
Steritest
®
device should never prevent the red safety plugs from popping off in
the event of overpressure inside the canister.
•
If the red plugs pop off while pump is operating with a pressure below the High
Pressure alert level, remove both red plugs to release the pressure and then put
them back on the canister vent. If the problem persists, perform a verification
of the pressure sensors (See
Configuring the Pump, Pressure Sensors
).
•
If a red plugs pops off while pump is operating at the High Pressure alert level,
remove both red plugs and place the vial upright on the table to prevent liquid
from being transferred into the canister and filling it completely. Wait until the
alert message disappears, which means that canister pressure is returning
below the High Pressure alert level. Put both red plugs back on the canister
vents and continue pump operations.
•
If the red plugs have not popped off when the
High Pressure
alert is
displayed, reduce speed or stop the pump until the message disappears. If
the alert message does not disappear, remove both red plugs to release the
pressure and ensure that the clamps close to the canisters are not closed. Then,
put the red plugs back on the canister vents.
•
If the red plugs have not popped off when the
Over Pressure
alert is
displayed, manually stop the pump and remove the red plugs to release the
pressure and ensure that the clamps close to the canisters are not closed. The
message disappears, which means that canister pressure is returning below
the High Pressure alert level. The equipment is returning to normal pressure
conditions and can resume testing operations.
High Temperature
If the internal temperature of the pump reaches the alert level while it is running,
a message appears in the information area of the screen:
•
If the maximum operating temperature has not been reached, the test in
progress can be completed. Once the test is completed and the pump head is
opened, a message appears in the information area of the screen, asking the
user to wait for the pump signal before starting new tests. This allows the
temperature to decrease below the alert level.
