If The Probe Tests Fail; Silencing The Audible Alarm; Testing The Performance Alarm Battery - Thermo Scientific 3881 Operating And Maintenance Manual

Section 3
Operation

If the probe tests fail

If the alarm temperature probe fails these tests as shown in Chart 3-3, the
probe is either defective or has become unplugged from the circuit board
(Figure 2-4). Contact the Technical Services department at 1-888-217-
1790, if necessary.
Silencing the Audible
Pressing the center button below the
display screen will silence the audible
Alarm
alarm. Refer to Figure 3-8. However,
the alarm will ring-back in 30 minutes
if the alarm condition still exists.
Figure 3-8.
Testing Performance
Test the performance alarm battery by
turning off the unit or pulling the plug
Alarm Battery
from the electrical outlet. The audible
alarm should sound and the Power
Failure indicator should light. Allow
the alarm to continue for 5 to 10
seconds before returning power to the
unit.
If the alarm does not activate, replace
the battery with stock number
400116. Refer to Figure 3-9 and to the
installation instructions in Section 2.
Figure 3-9.
Perform the alarm test at intervals recommended by the laboratory or the
bolld bank industry.
Thermo Scientific 7033881 Blood Bank 3-7