biodex ATOMLAB 500, Руководство по эксплуатации и обслуживанию, Страница: 24 / 212

Figure 2.2. The Atomlab 500 System Test screen.
Connect the power cable to the back of the display unit and plug the power supply into a wall
socket. Toggle the power switch, located on back of the display, to the “ON” (I) position. The
green power on led on the display will light and the system automatically performs a
background count and system-test as part of the power-up process.
NOTE: Be sure there is no source of activity in the detector, or nearby, that can cause the initial
background measurement to be incorrect.
The system test includes the following checks:
1. Display:
•
CPU functions
•
RAM memory (RAM diagnostics)
2. Detector:
•
Communication with the detector
•
High voltage readings to be in range
•
All detector firmware checksums
•
Validity of calibration factor values
•
Background factor for an excessively negative or large value
•
Detector memory integrity
•
Electrometer failure status
•
Detector gas pressure
Following the power-up system test, a screen is displayed showing the components and
detector status. If all items pass, “Pass” is displayed at the completion of the test. Should any
aspect of the self-test fail, “Fail” is displayed, along with an accompanying error code and
optional description of the problem. If the system powers up before a detector is attached, a
message, “No Detectors Identified. Click Accept or Re-Scan to Continue” is displayed. Touch
<Re-Scan> to search for a detector. The system will display, “Preparing for Re-Scan. Please
Wait…”