P/N VT-108731-IE, Manual revision: B
Completion. For more information refer to the Operation Manual for the
Model 1105 Sealing Head.
Figure 3-6, Releasing the Sealing Head Lever at Seal Completion
Note: Large cell wash tubing seals may require additional compression of the le-
ver after the indicator light goes out to ensure formation of the best seal. Typically,
this will result in a seal time of 1½ seconds.
Note: The Power Source is equipped with a thermal protection switch to prevent
the equipment from becoming damaged. If thermal cutout is reached, the power
source will not work for several minutes until the temperature of equipment low-
ers.
Warning: The Power Source is designed for rapid sealing applications; however,
extreme heavy duty use may result in thermal build up in the jaw area which
can cause hemolysis, poor seal quality or tubing ruptures. If you should
experience these problems, reduce the rate of sealing, as necessary, or allow for
periods of rest for the Sealing Head.
Warning: If you observe arcing while making a seal, follow the instructions in
Chapter 4, Table 4-1, “Troubleshooting Guide,” on page 4-3 under "Arcing or
Bad Seals." Although a seal made when you experience arcing may look
acceptable, it may be inadequate for centrifugation. Take precautions as if this
is an inadequate seal.
Warning: Under
no
circumstances should the tubing be separated by pulling it
at the instant of sealing. This may cause an opening in the tubing, which will
subject the blood or plasma to non-sterile conditions and the user to potentially
hazardous fluids. In addition, the sealing head may become damaged by arcing
caused by contamination of the sealing region.
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