Testing
Flowtron Universal Service Manual
Chap 4
Issue 2
Page 10
SER0009
Sep 2009
8
Re-calibrating the Pressure Transducer
Note:
This procedure is carried out without opening the pump case.
8.1
Prepare the calibration test equipment (Refer to Page 6, Section 6).
8.2
Make sure that no calibration test equipment or other garments are connected to either pump
hose set assembly.
8.3
Initialise the pump (Refer to Page 1, Section 1).
8.4
Connect the right hose set assembly on the pump to the garment connector on the test
equipment (Refer to Figure 21).
Note:
The calibration test equipment must only be connected to the right hose set assembly.
Do not connect anything to the left hose set assembly.
8.5
Press the “hidden”
Service
button on the membrane panel (Refer to Page 5, Section 4) to
access the service screen on the LCD display (Refer to Figure 25).
Figure 25 - LCD Display - Calibrate PT
8.6
Using the
Down
and
Up
buttons below the LCD display (Refer to Page 5, Section 4), scroll
down the list of options to
Calibrate PT
, and select it using the
button below the LCD display.
A new list of options will appear (Refer to Figure 26).
Figure 26 - LCD Display - Calibration Data
8.7
Before continuing with the re-calibration procedure, refer to the two
Calibration Data
values on
the LCD display, and make a note of the
Zero
and
Gain
values (Refer to Figure 26).
Note:
If the re-calibration procedure goes wrong, you can set the
Zero
and
Gain
values back to
their original values, and then start the re-calibration procedure again.
8.8
Make sure the external pressure meter shows zero pressure.
8.9
Check the value of the
Output Pressure
shown on the LCD display (Refer to Figure 26). It
should show zero pressure. If it does not show zero pressure, then adjust the zero calibration
factor of the pump as follows:
8.9.1
To increase the
Output Pressure
value, scroll through the list of options to
Increase
Zero
. Each time the
button is pushed, the
Output Pressure
value will increase.
8.9.2
To decrease the
Output Pressure
value, scroll through the list of options to
Decrease
Zero
. Each time the
button is pushed, the
Output Pressure
value will decrease.
8.9.3
As these adjustments are being made to the
Output Pressure
value, the
Zero
value
on the
Calibration Data
will change (Refer to Figure 26).
Output Pressure
Calibration Data
(Zero, Gain)
(typical values)
Summary of Contents for FLOWTRON UNIVERSAL
Page 1: ...Service Manual FLOWTRON UNIVERSAL ...
Page 2: ......
Page 4: ...Flowtron Universal Service Manual Ammendment Record Issue 2 Page ii SER0009 Sep 2009 ...
Page 8: ...Flowtron Universal Service Manual Issue 2 Page vi SER0009 Sep 2009 ...
Page 22: ...Maintenance Flowtron Universal Service Manual Chap 3 Issue 2 Page 4 SER0009 Sep 2009 ...
Page 38: ...Testing Flowtron Universal Service Manual Chap 4 Issue 2 Page 16 SER0009 Sep 2009 ...
Page 88: ...Pump Repair Flowtron Universal Service Manual Chap 5 Issue 2 Page 50 SER0009 Sep 2009 ...
Page 114: ...Parts List Flowtron Universal Service Manual Chap 8 Issue 2 Page 4 SER0009 Sep 2009 ...
Page 116: ...SER0009_02 September 2009 ...