Bellows Drive Gas Leak: Adult - Dräger Narkomed 2B Service Manual

PMC PROCEDURE (continued)
6.21.19 Using a stopwatch, time the inspiratory phase.
( ) 6.21.20 What is the inspiratory time? ___ seconds (1.8-2.2)
6.21.21 Using a stopwatch, time the expiratory phase.
( ) 6.21.22 What is the expiratory time? ___ seconds (3.6-4.4)
** 6.21.23 Press and hold the EXTENDED RANGE switch and scroll the I:E ratio
dial counter-clockwise and verify the extended I:E values increment
(2:1, 3:1 and 4:1); return the I:E ratio to 2:1.
** 6.21.24 Using a stopwatch, time the inspiratory phase.
( ) ** 6.21.25 What is the inspiratory time? ___ seconds (3.6 - 4.4)
** 6.21.26 Using a stopwatch, time the expiratory phase.
( ) ** 6.21.27 What is the expiratory time? ___ seconds (1.8 - 2.2)
( ) 6.21.28 Adjust the FREQUENCY and I:E RATIO through the following settings
and verify that the ventilator cycles properly:
FREQ.
11
22
33

6.22 BELLOWS DRIVE GAS LEAK: ADULT

6.22.1 Remove the ventilator hose from the VENTILATOR HOSE terminal.
6.22.2 Attach a test terminal to the bellows assembly ventilator hose terminal.
6.22.3 Connect a flowmeter test stand (P/N S000081) to the test terminal.
6.22.4 Set the FREQUENCY to 1 BPM.
6.22.5 Set the I:E RATIO to 1:1.
6.22.6 Set the INSPIRATORY FLOW to the maximum.
( ) 6.22.7 What is the flow indicated during the inspiratory phase? ___ (<50 ml)
6.22.8 Remove the test terminal and flowmeter test stand.
6.22.9 Turn the ventilator OFF.
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I:E RATIO FREQ.
1:1 44
1:1.5 55
1:2 66
6-50
I:E RATIO FREQ.
1:2.5 77
1:3 88
1:3.5 99
NM2B
I:E RATIO
1:4
1:4.5
1:4.5
Rev. Y