2-12
Flow Control Assembly
The above picture shows the left front panel where the flow control assembly and flow
display assembly are located. Flow control assembly 26 (flow regulator) controls the gas
flows and the proportion between O2 and N2O as well to ensure that the gas flows outputted
are adjustable within the range of 0
–
15 L/min. O2 concentration is controlled not to be less
than 25%. When N2O flow is greater than 1.0 L/min, the minimum O2 concentration is less
than 40%. Turning flow controls counterclockwise increases the flow and clockwise
decreases the flow.
Flow Display Assembly
Electronic flowmeter&throttling device 27 and float flowmeter 28 constitute the flow display
assembly. Gases from the flow regulators enter into the flow display assembly and mixed gas
going through the anesthetic gas delivery device (vaporizer) is outputted. Electronic
flowmeter&throttling device 27 measures and displays the flow of each gas. Float flowmeter
28 displays the total gas flow. The flow range displayed is from 0.05 to 10 L/min at the
resolution of 0.5 L/min. The measurement accuracy is required to be ±10% of the reading.
The scale starts from 0.5 L/min and increases by 0.5 L/min when flow is within 0.5 to 2
L/min and by 1 L/min when flow is within 2 to 10 L/min.
26.Flow regulator
27.Throttling device
28.Float flowmeter
Flow sampling point and display board
Summary of Contents for WATO EX-55
Page 1: ...WATO EX 55 65 Anesthesia Machine Service Manual ...
Page 2: ......
Page 4: ...II FOR YOUR NOTES ...
Page 6: ...IV FOR YOUR NOTES ...
Page 12: ...6 FOR YOUR NOTES ...
Page 58: ...3 22 FOR YOUR NOTES ...
Page 242: ...6 54 6 4 1 Electrical Connections Electrical Circuit Diagram ...
Page 260: ...6 72 FOR YOUR NOTES ...
Page 261: ...7 1 7 Parts 7 1 Main Unit 7 1 1 Main Unit 7 1 1 1 Exploded View ...
Page 321: ......
Page 322: ...P N 0621 20 78654 1 1 ...