Idexx VETLAB UA, Operator'S Manual

Page: 13 / 38

IDEXX VetLab
UA Analyzer Operator’s Guide 13
The LED emits light of a defined wavelength onto the surface of the test pad at an optimum
angle. The light hitting the test zone is reflected more or less intensely depending on the color
produced on the test pad, and is picked up by the detector, a phototransistor positioned directly
above the test zone. The phototransistor sends an analog electrical signal to an A/D converter,
which changes it to digital form. The microprocessor then converts this digital reading to a relative
reflectance value by referring it to a calibration standard.
Finally, the analyzer compares the reflectance value with the defined range limits (reflectance
values that are programmed into the analyzer for each parameter) and outputs a semi-quantitative
result.
Installing the IDEXX VetLab UA Analyzer
1. Unpack the IDEXX VetLab UA Analyzer and place it on a stable, level
surface. Choose a well-ventilated area away from obvious sources
of heat, direct sunlight, cold, humidity, or vibrations. For optimum
results, room temperature should be at 68°F–78°F (20°C–26°C) and
relative humidity at 30%–60%.
IMPORTANT: Allow the UA analyzer to acclimate to room
temperature for two to three hours before operating it for the first time.
2. Connect the power cord and the AC adapter. Then, connect the AC
adapter to the power socket at the rear of the analyzer and plug the
power cord into an outlet.
NOTE: Use only the power adapter supplied (which is marked as
supplying 7.5 V DC, 3000 mA). The cords from other power adapters
may fit in the power socket of the UA analyzer, but may have the
incorrect voltage or current for this analyzer. Using a different power
adapter than the one supplied may impact results or render the
analyzer unusable.
3. Hold the test strip tray with the gray reference pad facing up (Figure
1). Slide it into the slot below the function keys so that the edge of the
tray is flush with the edge of the analyzer (Figure 2).
IMPORTANT: Be careful not to touch the gray reference pad.
Contamination of the reference pad may impair the quality of the
results.
4. Load the printer paper. To release the printer cover, press the raised
dots immediately below the cover (Figure 3). After the cover pops
open, lift it back.
Place the paper roll in the compartment and pull out the first few
inches of paper to just beyond the edge of the compartment. The
thermosensitive side of the paper (the outer surface of the paper roll) should be facing
downward (Figure 4).
Close the cover by pressing it until it locks audibly.
5. Select the printing, units, and connection (interface) options (for more information, see pages
20–21).
NOTE: If your UA analyzer is connected to the IDEXX VetLab Station, you can turn off the
analyzer’s print option, but you must still have paper in the analyzer. UA analyzer results
will be transferred to the IDEXX VetLab Station automatically and included in the patient’s
integrated diagnostic report.
Figure 2
Figure 1
Figure 3
Figure 4
gray reference pad