Huntleigh Flowtron DVT, Руководство по обслуживанию

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5.15.2 Flow control check
With the Flow and Pressure Unit connected to the pump outlet-port – which
dispenses air – check the following pump criteria. Rotate the pump
control-knob from min., to mid., to max., to adjust the flow control
5.15.2.1 Flowtron DVT Pressure/Flow Specification Table
Item Pump Voltage Pressure
Range mmHg
Free Flow
Req’d L/min
Flow Req’d
@ mmHg
F044 Standard 120 V Up to 25 min.
60-70 max.
5.0 2.5 @
40 mmHg
If adjustments are necessary, position the control knob at the set pressure as
specified above.
NOTE:
When adjustments are to be made to a Series III pump unit, remember
to re-seal the relief valve after setting the required pressure.
5.15.2.2 Alarm Checks
To check a unit which has a low-pressure warning light fitted, allow air to bleed
from the outlet ports of the pump. This action simulates a leak, so the warning
light should come ON, and the sounder should activate within 90 seconds to
produce a continuous sound.. Cover the outlet port to verify that the warning
light and sounder goes OFF.
5.15.2.3 Calibration
If the pressure readings are incorrect then perform the following :
Remove the pressure control knob by loosening the side screw. Rotate the
brass arbor until the pressure reads 40 mmHg. Carefully replace the pressure
control knob, ensuring that the pointer is aligned with the ‘40’ setting on the
face label. Press the knob firmly into the recess, compressing the friction
spring, then tighten the side screw.
Check the minimum and maximum settings and readjust if necessary.
Variation between ports must not be greater than 4 mmHg.
F048 5-10 Issue 3
Mar 2003