THEORY OF OPERATION Chapter 2
2 - 17
3. Pressure Sensor Calibration Review
At the start of the pressure sensor calibration sequence the text field displays PRESSENS.
The pump begins stepping the motor. After approximately 5 seconds, the digital pressure
sensor reading is continuously displayed, and the reading is updated with each motor step.
NOTE
The motor will not operate and no reading will be displayed unless the
plunger capture sensor indicates the presence of a syringe plunger or
equivalent.
Press CONFIRM to continue. The pump clears the readings, and continues with the
VB_SENSE calibration review.
4. VB_SENSE Calibration Review
During VB_SENSE calibration review the pump continuously displays the analog and
digital VB_SENSE readings, based on the current calibration settings. The text field
displays VB_SENSE.
Press CONFIRM to continue. The pump clears the readings, and continues with the
auxiliary LCD test.
5. Auxiliary LCD Test
The pump allows a detailed test of the LCD for segment shorts and opens. To perform the
auxiliary LCD test, place the pump in Calibration Review mode.
Following review of the battery sensor calibration display, the text field displays TEST LCD.
N is displayed in the Syringe mfr field. To start the Auxiliary LCD Test, press ▲ or ▼ to
change the N to Y and press CONFIRM. [If CONFIRM is pressed while N is displayed, the
pump exits calibration review mode and restarts the POST.
The LCD is initially blanked. Each segment in the top line of the LCD is then turned on for
1/4 second, starting with the SYRINGE mfr/size annunciator on line 1, and proceeding
from left to right through each segment to the last segment on the line. When the last
segment has been displayed, the test repeats with the first segment of the same line. To
proceed to the next line, press CONFIRM at any time. Each time CONFIRM is pressed,
testing begins on the next line, rolling over from the bottom line to the top line.
Press STOP to terminate the test and restart the POST.
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