1
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.
W A R N I N G S A N D P R E C A U T I O N S
These warnings and precautions are to help you to
understand how to safely operate the MXR
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.
W AR N I N G :
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).
