Flowtron Universal Service Manual
Testing
Issue 2
Chap 4
Sep 2009
SER0009
Page 11
8.10
To start the test, scroll down the list of options to
Run Compressor
, and select it using the
button. The compressor will start running at output level “5”, indicated by the
(5)
on the LCD
display, and the
Output Pressure
shown on the LCD display should rise and then stabilize
(Refer to Figure 27).
Figure 27 - LCD Display - Output Pressure
8.11
With the
Run Compressor
option still highlighted, press the
button 5 more times. The
compressor output will increase to level “30”, indicated by the
(30)
on the LCD display, and the
Output Pressure
shown on the LCD display should rise and then stabilize.
8.12
Compare the value of the
Output Pressure
on the LCD display with the value shown on the
external pressure meter:
8.12.1
If the value of the
Output Pressure
on the LCD display is within ±2 mmHg of the value
shown on the pressure meter, then:
8.12.1.1
Scroll down the list of options to
Exit
, and select it using the
button. The
compressor will stop.
8.12.1.2
Go to Para 8.13, and continue the test.
8.12.2
If the value of the
Output Pressure
on the LCD display is
NOT
within ±2 mmHg of the
value shown on the pressure meter, then adjust the gain calibration factor of the pump
as follows:
8.12.2.1
To increase the
Output Pressure
value, scroll through the list of options to
Increase Gain
. Each time the
button is pushed, the
Output Pressure
value will increase.
8.12.2.2
To decrease the
Output Pressure
value, scroll through the list of options to
Decrease Gain
. Each time the
button is pushed, the
Output Pressure
value will decrease.
8.12.2.3
When the value of the
Output Pressure
on the LCD display is within
±1 mmHg of the value shown on the pressure meter, scroll down the list of
options to
Back
, and select it using the
button.
8.12.2.4
Scroll down the list of options to
Real pressure display
, and select it using
the
button.
8.12.2.5
Scroll down the list of options to
Exit
, and select it using the
button. The
compressor will stop.
8.12.2.6
Go to Para 8.13, and continue the test.
8.13
Run the test to check the calibration of the pressure transducer (Refer to Page 7, Section 7).
Output Pressure
Output Level
(typical value)
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