Inhoudsopgave
Advertenties
Inlet filtration
Reverse Gas Flow
Service Life
Lifetime of Device
Optional Accessories
Optional flowmeters
Inlet gases shall meet gas dryness of .0045 mg water per cubic centimeter of gas.
Air:
Oxygen:
Dimensions (without flowmeters)
Depth:
Width:
Height:
Weight
Shipping Weight:
Operating Temperature
Range:
SETTING UP THE GAS MIXER
The gas mixer can be either pole or wall mounted. The inlet fittings of the gas mixer conform to Diameter Index Safety System (D.I.S.S.) * and air
and oxygen connections cannot be reversed. Connect an air high pressure hose to the air fitting and an oxygen high pressure hose to the oxygen
fitting. It is recommended that an air inlet water trap be used between the air hose and inlet fitting to prevent moisture from entering the gas
mixer.
*The gas mixer is available with inlet NIST fittings and outlet Barb fittings upon request.
OPERATING INSTRUCTIONS
♦
Before using the gas mixer, verify that performance verification has been completed.
♦
If applicable, connect the gas mixer outlet to the inlet device that will deliver the oxygen concentration to the patient.
♦
From reliable pressure regulated gas sources, connect both medical grade air and medical grade oxygen to the gas mixer inlets utilizing
appropriate gas hoses (P/N IV 308 air inlet hose and P/N IV 309 oxygen inlet hose). NOTE: P/N IV 308 and IV 309 are not CE marked.
Using the gas mixer FiO
♦
If the configuration includes a flowmeter/s, initiate gas flow through the flowmeter(s) by turning the knob(s) on the flowmeter(s)
♦
counterclockwise to the desired flow setting.
Begin the operation of the attached delivery unit, if applicable.
♦
♦
After the selected gas mixture has washed out the room air from the delivery unit, analyze and monitor the delivered gas concentration
with a calibrated oxygen analyzer. Appropriately set the high and low alarm limits on the analyzer.
♦
Periodically observe the water trap assembly for the accumulation of moisture. Moisture shall be removed from the water trap assembly
by depressing the valve at the bottom of the water trap bowl.
♦
Periodically observe the oxygen analyzer and evaluate the delivered FIO
USING THE GAS MIXER WITH OTHER EQUIPMENT
Connect the gas outlet of the gas mixer either directly or via a high-pressure hose to the equipment with which it is being used.
Set the control on the front panel to the desired oxygen concentration.
Turn on the 50 psig (345 kPa) air and oxygen sources.
Use a calibrated oxygen analyzer to check the accuracy of the delivered gas.
PERFORMANCE VERIFICATION
Prior to Each Use
Prior to each clinical usage, the user shall perform the following tests:
Each Air/Oxygen inlet fitting has a 5-micron particulate filter.
Reverse gas flow from either gas inlet is prevented by inlet check valves.
Two (2) years
The lifetime of Sechrist gas mixers is 20 years provided they are overhauled using Sechrist supplied
components and Sechrist certified technicians once every 2 years.
The following operator detachable inlet pressure hoses comply with Compressed Gas Association
(CGA) V-1, V-5, and G-4.1:
•
(4.27 m) Air Inlet Hose (Not available in Europe)
•
Ref. IV 309 14-foot (4.27 m) Oxygen Inlet Hose (Not available in Europe)
Mounting pole
•
1 – 10 lpm ..................... ± 3% of full scale
1 – 15 lpm ..................... ± 3% of full scale
100 - 1000 ml/min......... ± 3% of full scale
Medical Air inlet should be USP grade or equivalent.
The oxygen should be USP medical grade oxygen or equivalent.
≅ 3.94 inches (without watertrap attached)
≅ 2.40 inches
≅ 5.16 inches
≅ 4.7 lbs.
≅ 12 lbs.
80°F ±15°F
control knob, select the desired oxygen concentration FIO
2
Page 9 • P/N 100001-EU Rev. 31 (10/2024)
from .21 to 1.0.
2
.
2
Ref. IV 308 14-foot
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Inhoudsopgave
Probleemoplossen
