Safety Systems; Temperature Control - Gaymar Medi-Temp II FW400 Manual Del Operador

operator's manual
FW400 Series Blood/Fluid Warmer
4.0

Safety Systems

4.1 Electronic System Self Check
Each time the Warmer is turned on, it performs a self-check
(about 2 seconds) before lighting the display. If a problem
is detected, an error code will be displayed and the Warmer
must be removed from use.
4.2

Temperature Control

The Medi-Temp II FW400 Series Blood/Fluid Warmer
noninvasively senses fluid temperature on the surface of the
Warming Cassette. At steady state, the Warmer indicates
approximately 43.0°C on its display. Output fluid temperature
will be 36°C–43°C for 10°C input fluid temperature. Fluid
temperature is affected by fluid flow rate as shown in figure
6 below.
Room temperature fluid may be warmed at flow rates up to
500 ml/min.
Flow (ml/min)
Figure 6 - Typical fluid temperature vs. flow values
4.3 Control Alarm—hI
If a fluid temperature over 45ºC is sensed by the Warmer,
it turns the heaters off and activates an audible alarm.
The display will alternately indicate the word "hI" and the
temperature.
The audible alarm may be silenced during this condition by
turning the unit off then on again.
If the fluid temperature drops below 45ºC, the unit will
resume normal operation.
Refer to section 5.1, page 8.
4.4 Over Temperature
Safety Thermostats
In the event of Warmer failure, there are two mechanical
thermostats that will interrupt power to the heaters.
The first thermostat will turn off the heaters, activate the
audible alarm and turn the display blank.
The second thermostat will interrupt power to the Warmer if
the first one fails.
Cold fluid through the Warming Set can be used to reset the
thermostats. The unit must be turned off, then back on to
reset the alarm circuits.
Refer to section 5.1, page 8.
4.5 Control Alarm—LO
If the sensed fluid temperature drops below 34ºC, the
Warmer will activate an audible alarm, and the display will
alternately indicate the word "LO" and the temperature.
Refer to section 5.1, page 8.
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