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Beschikbare talen
Beschikbare talen
WARNING: Liquid water or other contaminants in either inlet gas, particularly in the air inlet, will cause malfunction of this equipment and any
attached equipment. Inlet gases shall meet gas dryness of .0045 mg water per cubic centimeter of gas.
WARNING: Oxygen concentration must be monitored downstream from the gas mixer with a suitable, calibrated oxygen analyzer, equipped with
alarms that can be set for high and low FIO
(O2%). FiO
(O
%) shall then be adjusted to maintain appropriate blood gas concentrations.
2
2
2
WARNING: Oxygen vigorously accelerates combustion. To avoid explosion hazard, do not expose the gas mixer to any instruments or other equipment
that may have been contaminated by oil or grease. Gas supplied to the gas mixer must be extremely clean (no more than 25 parts per million (ppm) of
gaseous hydrocarbons is allowed.) A high concentration of hydrocarbons in the gas inlet is a fire hazard.
WARNING: The gas mixer audible alarm may not function when both air and oxygen inlet pressures are less than the minimum specified inlet pressure
of 30 psig (207 kPa).
WARNING: The outlets have the capability of providing gas pressures equal to the inlet pressures. Therefore, any equipment attached must provide
safety relief protection to prevent excessive pressures being delivered to patients.
WARNING: Whenever a patient is attached to respiratory care equipment, constant attendance is required by qualified personnel. The use of alarm or
monitoring systems does not provide absolute assurance of a warning for every possible system malfunction. In addition, some problems may require
immediate attention.
WARNING: Inlet pressures ≤ 30 psig (207 kPa) or ≥ 70 psig (483 kPa) may result in gas mixer damage or malfunction. Use of a suitable inlet gas
regulation system is necessary.
WARNING: The Sechrist Air/Oxygen gas mixer is a sophisticated medical device designed for use by qualified personnel under the direction of a
qualified physician.
WARNING: This product shall only be maintained and repaired by a Sechrist Industries factory-trained technician or by written instructions from
Sechrist Industries. This product shall not be modified in any way, except with prior written approval of Sechrist Industries. Unapproved modifications
can result in death or serious injury.
WARNING: The gas mixer does not contain gas sterilizing filters and will inlet the same quality of gas supplied from the gas sources. Use of appropriate
gas purity and gas line filters is the responsibility of the user.
WARNING: When the gas mixer is used to supplement respiratory equipment, the user must refer to and follow the instructions provided by the
manufacturer of the respiratory equipment.
WARNING: Do not obstruct the alarm. Do not tamper with the alarm.
WARNING: Do not use gas mixer when the alarm is sounding.
WARNING: The gas mixer is not suitable for use with oxygen concentrators.
WARNING: The gas mixer bleeds air/oxygen gas mixture. Do not expose gas mixer to ignition sources.
WARNING: When both supplies are within range of 30-70 psig (207-483 kPa), the gas mixer will maintain the delivered oxygen concentration within 1%
of the selected concentration with small fluctuations of the inlet pressure. The additional 2% error results from the readability of the set point and
scale error. Do not use on a patient or with respiratory and heart-lung bypass equipment outside of gas mixer pressure specification.
WARNING: Overhaul gas mixer every two (2) years from the Date of Manufacture.
WARNING: Visually inspect gas mixer upon receipt. Do not use gas mixer if there is any damage and contact provider.
WARNING: Do not use gas mixer if bubbles are detected during the reverse gas flow test.
WARNING: This precision gas-mixing device may become nonfunctional or damaged if used without the watertrap assembly and filters provided.
WARNING: Periodically replace the air water trap/inlet filter (Sechrist P/N 3529E in Figure 4) at least every 6 months or as needed.
WARNING: Replace the internal sintered stainless-steel filters (Sechrist P/N 3522K in Figure 3) at least every 6 months or as needed.
WARNING: The gas mixer is not MRI compatible.
WARNING: Do not autoclave and/or sterilize.
CAUTION: Do not immerse the gas mixer in any solution.
CAUTION: Before using this gas mixer, verify that the performance verification procedure has been performed by a qualified individual.
Page 5 • P/N 100001-EU Rev. 31 (10/2024)
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