Huntleigh AlphaBed, Service Manual

Page: 75 / 94

CHAPTER 5
TESTING
1 Pump Flow, Pressure and Function Test
This procedure must be carried out after a service or major repair of a pump. To test/calibrate the
pump unit correctly, the following equipment or equivalent is required:
Note : All test equipment must be calibrated to national or international standards.
Flow and Pressure Checks
1.1 Connect the flowmeter, via a valve, to whichever outlet is working. Connect the pressure
gauge to measure the pressure at the outlet.
1.2 Open the valve fully. The free flow rate should not be less than specified in Table 31.
1.3 Close the valve and operate the pressure control knob on the pump from minimum to maximum
setting. The pressure indicated on the gauge (in mmHg) should be as specified in Table 31.
Issue 2 Chap 5
Nov 2001 SER0004 Page 1
Mini Pump Service Manual Testing
Equipment Part Number
Typical Test Kit (including):- PRE 060
Digital Manometer (pressure gauge) 0-199 mmHg,
resolution 0.1, accuracy ± 0.2% of range.
Flowmeter 0-10 litre/minute, resolution 0.2, accuracy ± 2%
of measured value.
Battery, 9V Lantern
Male Connector BP431
Female Connector BP432
Table 30 - Pump Flow, Pressure and Function Test Equipment
Pump
Airflow at
20 mmHg (ltr/min)
Airflow at
50 mmHg (ltr/min)
AlphaBed
AlphaCare
Alpha Trancell
Alpha Relief
Aura
AlphaXcell
6
6
6
6
3.25
6
3
3
3
3
2.25
3
Table 31 - Minimum Flow Rates