Physio-control LUCAS User Manual Page 66

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66 100359-50 B, ©J AB 2006
LUCAS
I U G I
6.1.1 C
If a flow rate performance diagram exists:
1. Check that the nominal output pressure for the
regulator is within 3.2–6 bar.
2. Find the regulator output pressure (Bar) in
Figure 2$ and obtain the minimum free flow
rate (L/min) from the diagram. The example in
Figure 2$ shows a regulator output pressure of
4.6 bar.
3. From the flow rate performance diagram for
the regulator, obtain the the output pressure
for the regulator at the minimum free flow rate.
Calculate the pressure drop.
4. Check that the calculated pressure drop does
not exceed the maximum allowable pressure
drop (P) at the nominal pressure (Bar),
obtained from Figure 2%.
If no flow rate performance diagram exists, follow
the instructions in Section 6.1.2 to check your
pressue regulator.
6.1.2 C
1. Measure and verify that the nominal supply
pressure is within 3.2–6 bar.
2. Find the nominal supply pressure (Bar) in
Figure 2% and obtain the minimum free flow
rate (L/min) from the diagram. The example in
Figure 2% shows a nominal supply pressure of
4.6 bar.
3. Measure the supply free flow rate and restrict
the flow to the minimum required free flow
rate obtained from Figure 2%.
4. Measure the supply pressure at the minimum
required free flow rate. Calculate the pressure
drop.
5. Check that the calculated pressure drop does
not exceed the maximum allowable pressure
drop (P) at the nominal pressure (Bar),
obtained from Figure 2%.
2$
2%
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