Precision Medical HeliO2 Blenders - Manual (Page 27)

Heliox / Oxygen Blender Service Manual
Page 25
III. INTERNATIONAL LOW / HIGH Flow Operation Verification Procedure
(60 psi / 4.14 bar MODELS)
S E Q #
DIAL
SET
O2%
OXYGEN PRESS ±1.0 HELIOX PRESS ±1.0
FLOWMETER
SET TO
lpm ±0.2
AUXILIARY
BLEED
FUNCTION
TARGET VALUE
ACTUAL
VALUE
psi bar psi bar
Low
Flow
High
Flow Low
Flow
High
Flow
Low
Flow High
Flow
1 ANY 60 4.14 60 4.14 closed closed leak <2 psi / 2 MIN
*2 60 75 5.17 0 0 0 closed back flow <100 ml/min
*3 60 0 0 75 5.17 0 closed back flow <100 ml/min
4 21 60 4.14 60 4.14 3 15 open closed end point (±0.3) Source Value
5 40 60 4.14 60 3.45 3 15 open closed set point 37.0%-43.0%
6 60 60 4.14 60 3.45 3 15 open closed set point 57.0%-63.0%
7 80 60 4.14 60 3.45 3 15 open closed set point 77.0%-83.0%
8 100 60 4.14 60 3.45 3 15 open closed end point (±0.3) Source Value
9 60 60 4.14 60 3.45 1 1.5 open set point 57.0%-63.0%
10 60 60 4.14 70 4.83 1 1.5 open set point 57.0%-63.0%
11 60 60 4.14 53 3.65 1 1.5 open set point 57.0%-63.0%
12 60 60 4.14
Slowly
reduce
to 40
Slowly
reduce to
2.76
3 15 closed Alarm ON
42.0 ±
2.0 psi
31.0 ±
6.0 psi
13 60 60 4.14
Slowly
Increase
to 60
Slowly
Increase
to 4.14
3 15 closed Alarm OFF 45.0 psi MAX
14 60
Slowly
Reduce to
40
Slowly
Reduce to
2.76
60 4.14 3 15 closed Alarm ON
42.0 ±
2.0 psi
31.0 ±
6.0 psi
15 60
Slowly
Increase
to 60
Slowly
Increase
to 4.14
60 4.14 3 15 closed Alarm OFF 55.0 psi MAX
16 60 60 4.14 60 4.14 MAX closed flow rate
30.0
lpm
MIN
120.0
lpm
MIN
17 60 60 4.14 0 MAX closed flow rate
30.0
lpm
MIN
85.0
lpm
MIN
18 60 0 60 4.14 MAX closed flow rate
30.0
lpm
MIN
85.0
lpm
MIN
19 60 60 4.14 60 4.14 MAX open flow rate
30.0
lpm
MIN
120.0
lpm
MIN
* Reference, Letter D. (Reverse Gas Flow Procedure)