Arjohuntleigh FLOWTRON UNIVERSAL, Service Manual

Page: 29 / 116

Flowtron Universal Service Manual Testing
Issue 2 Chap 4
Sep 2009 SER0009 Page 7
Figure 21 - Calibration Test Equipment for the Pressure Transducer
7 Checking the Calibration of the Pressure Transducer
The test consists of running the compressor at 8 output levels: 5, 10, 15, 20, 25, 30, 31 and 32.
Levels 30, 31 and 32 are used to check that the compressor is at its maximum output, and
therefore the output pressure may not vary significantly between levels 30 and 32.
At each level, the compressor output stabilizes, and then the value of the output pressure shown
on the LCD display is compared with the value shown on the external pressure meter. If the two
values are within ±5 mmHg of each other, then the pressure transducer is calibrated and the
pump is able to provide accurate therapy. If not, the pressure transducer must be re-calibrated.
7.1 Prepare the calibration test equipment (Refer to Page 6, Section 6).
Table 4 - Calibration Test Equipment for the Pressure Transducer
Item Test Equipment Part Number
10 Foot Garment FG100/FG200
20 Calibrated Pressure Meter, Accuracy < 1 mmHg, Range > 200 mmHg -
30 T-Connector -
Left Hose Set Assembly
Right Hose Set Assembly
Note: The Test Equipment must be connected to the Right Hose Set Assembly.
The Left Hose Set Assembly is not used.
20
30
10
Garment Connector