Iris Diagnostics, a Division of International Remote Imaging Systems, Inc.
iQ
®
200 Sprint™ Automated Urine Microscopy Analyzer Service Manual 300-4949 Rev A 01/2005 4-16
4. Adjustments
Air Pressure Calibration
Material required
Calibrated air pressure gauge
16 x 100 mm round bottom glass tubes
Iris Diluent
Procedure
1. Remove the shield to access the front of the instrument.
2. Insert a T fitting between the air pressure pump line and the air
pressure bottle (black connector).
3. Run a line from the T fitting to a calibrated air pressure gauge.
4. Place a tube with 10mL of Diluent in a rack.
5. Place the rack on the right side of the sampler and press GO. The air
system pressurizes during the fluid wash procedure.
6. Read the air pressure on the air pressure gauge following the sample
cycle. The air pressure should be between 5.0 ±0.5psi.
7. If the air pressure needs to be adjusted, proceed with the following
steps:
a. Start the Service Application.
b. Under the SPA Calibration, adjust the value cal [14]: pressure
setting. If the air pressure is too high, decrease the pressure
setting value by one step at the time (2 Hex = 1 psi.)
c. Repeat steps 4 through 6 until the air pressure reading on the
gauge is within the acceptable range.
8. Process several samples after the adjustment has been made:
a. When the pipette descends into a sample tube, the pipette
releases a single large bolus of air. The sample will shoot up
inside the tube to about 1 cm from the top of the tube.
b. If the sample overflows the top of the tube, decrease the air
pressure.
9. Acceptance criteria:
a. Air pressure: 5.0 ±0.5psi.
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