2
IMPORTANT:
READ MANUAL COMPLETELY Be f o r e O p e r a t i n g T h i s D e v i c e
Basic delivery technique is described. Also, this manual contains instructions on periodically required checks to be
performed by the user. These checks are necessary to insure the proper performance of this device and its safety
features. Retain this manual for future reference.
WARNINGS AND PRECAUTIONS
These warnings and precautions are to help you to
understand how to safely operate the PORTER Digital
MDM Flowmeter. A WARNING alerts you to a
possible hazard to people. A CAUTION alerts you to
the possibility of equipment damage.
WARNING:
Do not use this device for the
administration of general anesthesia or as a part of, or
in conjunction with, a general anesthesia
administration system.
WARNING:
Workers are exposed to N
2
O during
administration of N
2
O/O
2
conscious sedation
analgesia. NIOSH has recommended that exposures
should be minimized. Contact NIOSH (1-800-35-
NIOSH) to receive NIOSH Publications on
Control of
Nitrous Oxide in Dental Operatories.
Exposure can be
minimized by effective controls. National Institute for
Occupational Safety and Health (NIOSH) publications
state that controls, including System Maintenance,
Ventilation and Work Practices can effectively reduce
N
2
O concentrations in patient procedures. Your
flowmeter accessory Porter scavenger system is an
important part of the system of controls.
WARNING:
Porter Instrument equipment utilizes the
cross+protection
system. The flexible hose and
connectors that connect to the flowmeter are diameter
indexed; 3/8” O.D. for Nitrous Oxide and ½” for
Oxygen. The
cross+protection
system is designed to
prevent misconnection of Oxygen and Nitrous Oxide
piping.
DO NOT ATTEMPT TO CHANGE THE
DIAMETERS OR CONNECTORS OF THE
FLOWMETER!
Tampering with the
cross+protection
system constitutes acceptance of liability by the
installer. For your own protection, as well as that of the
Doctor and the patients, use 3/8” O.D. tubing for all
Nitrous Oxide lines and ½” O.D. tubing for all Oxygen
lines.
To assure safe operation and conformation to local fire
codes, all Porter Instrument flowmeter systems are
designed to be used with sedation delivery systems
mounted inside walls and they meet or exceed the
guidelines established by the National Fire Protection
Association for Nonflammable Medical Gas Systems,
NFPA 99. Copies of NFPA 99 or portions thereof may
be obtained by writing to: National Fire Protection
Association, Batterymarch Park, Quincy, MA 02269-
9904; or call 1-800-344-3555
WARNING:
New or modified installations -
properly
connected gas pipelines are absolutely essential
to patient safety.
The authorized distributor or
contractor should provide written documentation that
all gas pipelines are connected properly and that the
system has been pressure tested prior to use. While
this is a good business practice, it is important that the
user verify by their own test, independent of the
authorized distributor or contractor, that all gas
pipelines are connected correctly prior to using the
system.
The ultimate responsibility of assuring
that lines are not crossed rests with the user.
WARNING:
During any power outage, remember to
turn OFF the flowmeter and manually turn OFF the
tank valves. With centralized, electrically powered
gas systems, if gas was flowing when the power went
out and the flowmeter is left ON, gas will be flowing
when the power is restored.
CAUTION:
This device is for use by or on the order of
a physician, dentist or licensed healthcare
professional.
CAUTION:
Always use clean, dry medical grade
gases. Introduction of moisture or other contaminants
into this device may result in defective operation.
CAUTION:
Do not attempt to repair, alter or calibrate
this device. Unauthorized repair, alteration or misuse
of this device is likely to adversely affect the
performance and will void the warranty.
CAUTION:
Never oil or grease any part of this
system (minimize fire or explosion potential).
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