Temperature Control
Thermo Scientific Recvo Blood Bank Refrigerators Installation and Operation
21
11 Temperature
Control
11.1 Setpoint Control Your individual unit has been adjusted and factory tested to maintain a
+4
°
C cabinet temperature. For most blood bank applications, you will not
need to change the temperature setpoint.
Cabinet temperature setpoint is a computed value based on the service
parameters Cut On and Differential. To adjust the setpoint:
1. Be sure that the key switch is not turned to the third (alarm) position.
In order to protect the contents of the blood bank, access to service
parameters is disabled when the unit is in alarm mode.
2. Access the service parameters as shown in Table 4.
3. Adjust the values of Cut On and Differential as needed.
11.2 Sensor Bottles Cabinet temperature is measured by probes inserted in sensor bottles. The
bottles contain equal portions of glycerine and water to simulate blood
samples. Keep the sensor bottles completely full up to the top of the bottle.
Space Saver models have one factory-installed sensor bottle. In Upright
models (23 ft³ and larger) there are two sensor bottles, positioned as shown
in Figure 4.
Figure 4. Sensor Bottles (Upright Models)
The default sensor reading for Upright units is the bottle at the top of the
cabinet. You can check the temperature in the lower sensor bottle by
pressing and holding and Scan simultaneously (refer to Figure 3). When
you release the buttons, the temperature display returns to the upper sensor
reading.
To Next Page
Loading...
Need help?
General
