6 - ENG PN MN234 C | User Manual
Liberator
Operating Instructions
1. To verify the level of liquid oxygen in the unit,
see page 9.
2. Clean the fill connectors on both the Liberator
and portable unit with a clean, dry, lint free cloth
between each fill to prevent freezing and possible
equipment failure.
WARNING: THE CONNECTION MUST BE
DRY, BECAUSE MOISTURE CAN CAUSE
THE EQUIPMENT TO FREEZE TOGETHER
AND MAY CAUSE LEAKAGE IN THE FILL
CONNECTORS.
WARNING: CLEAN THE FILL CONNEC-
TIONS ON THE LIBERATOR AND POR-
TABLE UNIT WITH A CLEAN, DRY, LINT
FREE CLOTH.
WARNING: DO NOT DEPRESS OR DIS-
TURB THE METAL POPPET ON THE FILL
CONNECTOR WHEN DRYING IT. THIS CAN
CAUSE LEAKAGE OF LIQUID OXYGEN. IF
A LEAK OCCURS, LEAVE THE ROOM AND
CALL YOUR HEALTH CARE PROVIDER.
WARNING: SHOULD LEAKAGE BE EXCES-
SIVE TO THE POINT THAT A STREAM OF
LIQUID IS PRESENT, LEAVE THE AREA
AND CALL YOUR HEALTH CARE PRO-
VIDER IMMEDIATELY.
WARNING: IF LARGE AMOUNTS OF
VAPOR ARE ISSUING FROM THE UNITS
DURING FILLING, STOP FILLING, LEAVE
THE ROOM AND CALL YOUR HEALTH
CARE PROVIDER.
WARNING: IF PROLONGED HISSING IS
HEARD, STOP USE AND CONTACT YOUR
HEALTH CARE PROVIDER IMMEDIATELY
3. Turn the Liberator flow control knob to the off
(0) position.
4. Follow the filling instructions provided for the
portable unit.
WARNING: IF THE PORTABLE DOES NOT
SEPARATE EASILY, DO NOT USE FORCE.
THE UNITS MAY BE FROZEN TOGETHER.
LEAVE THE UNITS
CONNECTED AND WAIT UNTIL THEY
WARM UP – THEN THEY WILL SEPARATE
EASILY. DO NOT TOUCH ANY FROSTED
PARTS.
Caution: Should there be any liquid
leakage from the portable after separat-
ing the units, set the portable aside,
ensuring it remains vertical, leave the
room, and call your health care provider
immediately.
Caution: Should there be any liquid leak-
age from the reservoir after separating
the units, open windows in the room,
leave the room and call your health care
provider immediately.
Caution: Check the liquid level only after the vent
valve is closed.
Basic Operations
1. Use the following chart as a guideline to
determine the length of time the Liberator will
operate:
Model
L-20
L-30
L-37
L-45
L-60
Off
Nominal
0.25
34-17
50-2
61-10 74-19
90-2
0.5
24-16
35-15 43-16 53-4
68-8
0.75
16-11
23-18 29-3
35-11
45-13
1
12-8
17-19 21-20 26-14
34-4
1.5
8-5
11-21 14-13 17-17
22-18
2
6-4
8-21
10-22 13-7
17-1
2.5
4-22
7-3
8-17
10-15
13-16
3
3-2
5-22
7-6
8-20
11-9
4
2-11
4-10
5-11
6-15
8-12
5
2-1
3-13
4-8
5-7
6-19
6
1-12
2-23
3-15
4-10
5-16
8
1-5
2-5
2-17
3-7
4-6
10
1-0
1-18
2-4
2-15
3-10
12
0-19
1-11
1-19
2-5
2-20
15
0-19
1-4
1-11
1-18
2-6
Note: Times are in days and hours (format 00-00).
Note: The “Nominal” times are for ideal conditions,
i.e. maximum fill, exact flow rates, good loss rate,
Liberator not being moved, etc. These times are the
maximum expected.
Note: Your individual results will vary.
