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4. Operation
Overview
This chapter explains how to start treatment and change target temperature and rate settings during treat-
ment. It provides instructions on the proper way to end treatment, including how to download patient tem-
perature trend data to a laptop computer and how to remove used components and dispose of them safely.
Subsections at the end of this chapter provide detailed procedures for recovering from improper shutdowns,
including special procedures for downloading patient temperature trend data.
This Overview section presents the main features of console.
After the Overview, you will find sections that describe in detail the operation of the console. The sequence of
events that you must pass through in starting the console varies with the way it was last turned off. Within this
section we will review the different patterns of interaction you will experience. Specifically we will review:
•
Your first case with the console
•
Variations in the Setup sequence of the console
•
Ending procedures
Operating States
The console has three operating states: Setup, Standby and Run.
Setup
When the console is first powered up, it goes through a sequence of self tests It tests its own electronics and
internal sensors. These tests are called the POST (Power On Self Test). It is normal to hear two beeps during
POST. Then the console tests its thermometer functions and its cooling engine. The extent of the testing during
Setup and the interactions required of you by the console both vary depending upon the state of the console
when it was last turned off.
You can pre-set the bath temperature so that the console is either cooling or warming the bath in Setup.
Patient temperature alarms are not active in Setup.
Console Self Tests
The console performs self tests both at initial power-on and then hourly during operation. These tests allow
the console to check its own performance.
Thermometer Functions Self Test
The primary patient temperature monitoring circuit (T1) is checked during Setup and then hourly against the
console's internal high resolution calibration resistor. This is a quick test.
Cooling Engine Self Test
During Setup and then every four hours, during Run, the console automatically tests its cooling engine. This
test takes a few minutes.
Note. Cooling Engine Self Test - The pump stops. The cooling engine self test is brief. The console stops
the pump during these tests to remove the heat load from the patient during the test.The pump stops
during this test. This is normal.
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Table of Contents
Troubleshooting
