Chapter 3: Troubleshooting ABL77 Service Manual
Hardware Screen, Continued
• Activate the heater circuit by selecting the check box labelled Heater ON (see
Figure 3-3). The temperature reading as measured by the thermistor (located in
the sensor cassette) is displayed and labelled Th.
Description of
Hardware
screen
(continued)
Figure 3-3
• The oxygen sensor, which requires an applied current to function, can be
energized by selecting the check box labeled O2(nA).
• The Hematocrit sensors also require an applied current which is activated by
selecting the Hct(AD) choice on the drop-down menu which initially displays
OFF(AD).
• The other selection in this drop-down window refers to the air-in-sample circuit.
SC(AD) is the solution conductivity (SC) value. The units of measure for both
Hct and SC are analog to digital counts.
• The voltage output of the other sensors are displayed and labeled accordingly.
Continued on next page
3-6
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