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Platelet Incubator Operation Manual
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Return the probe to the probe bracket (if previously removed) and reinstall the probe bracket.
a
Gently slide the tip of the probe towards the outside of the bracket until the tip is about 2 inches
(5 cm) from the end of the bracket.
b
Tighten the fitting to secure the probe to the bracket. About 1 inch (2.5 cm) of the probe should be
exposed.
c
Install the bracket in the chamber.
d
If you moved an agitator to access the probe bracket, move the agitator back to its original
position.
7.8.3
Testing temperature alarms automatically on i.Series models
When you perform an automatic low alarm test, the Peltier device cools the probe until the low alarm
setpoint is reached. During the test, a LOW ALARM TEST IN PROGRESS message appears on the HOME
screen. When the temperature reaches the setpoint, an alarm sounds, the temperature reading flashes, and an
event is added to the event log indicating that the low temperature alarm was started. When the temperature
rises above the setpoint, the audible and visual alarms clear. An event is added to the event log indicating
that the low temperature alarm was reset. The LOW ALARM TEST IN PROGRESS message clears,
indicating that the test is complete. The process can take a few minutes.
When you perform an automatic high alarm test, the Peltier device heats the probe until the high alarm
setpoint is reached. During the test, a HIGH ALARM TEST IN PROGRESS message appears on the
HOME screen. When the temperature reaches the setpoint, an alarm sounds, the temperature reading
flashes, and an event is added to the event log indicating that the high temperature alarm was started.
When the temperature falls below the setpoint, the audible and visual alarms clear. An event is added to the
event log indicating that the high temperature alarm was reset. The HIGH ALARM TEST IN PROGRESS
message clears, indicating that the test is complete. The process can take a few minutes.
When you cancel an automatic test, the message indicating that the test is in progress clears immediately. If
a setpoint was reached before you cancelled the test, the alarm activates and clears as described earlier.
To automatically test the low temperature alarm
1
Identify the current setting for the low alarm setpoint.
2
From the MAIN screen, use the buttons to navigate to and select the System Alarm Test & Status
option. The SYSTEM ALARM TEST & STATUS screen appears.
3
Press the UP or DOWN button until the Start Low Alarm Auto Test option is highlighted.
4
Press the ENTER button. You are returned to the HOME screen. Under the reading for the upper
temperature probe, a LOW ALARM TEST IN PROGRESS message appears. When the test is
complete, the LOW ALARM TEST IN PROGRESS message clears.
5
View the event log to determine the temperature at the time the low temperature alarm event started.
Compare this value to the alarm setpoint. If the values do not match, see Section 8, “Understanding
and addressing operational issues”
for information on how to proceed.
To automatically test the high temperature alarm
1
Identify the current setting for the high alarm setpoint.
2
From the MAIN screen, use the buttons to navigate to and select the System Alarm Test & Status
option. The SYSTEM ALARM TEST & STATUS screen appears.
3
Press the UP or DOWN button until the Start High Alarm Auto Test option is highlighted.
4
Press the ENTER button. You are returned to the HOME screen. Under the reading for the upper
temperature probe, a HIGH ALARM TEST IN PROGRESS message appears. When the test is
complete, the HIGH ALARM TEST IN PROGRESS message clears.
