1
Introduction
CAUTION
Federal Law in the U.S.A. and Canada restricts this device to sale by or on the order of a licensed practitioner.
Intended Use
The cabinet mount installation kit and accessories are
intended for use in mounting the Digital MDM® mixer
and associated accessories. The Digital MDM mixer is
intended for use by trained medical personnel only.
User and Installer Responsibility
It is the responsibility of both the user and the installer
to ensure that the correct gas, at the correct pressure,
is supplied to the fittings at the rear of the unit. See
Specifications in the Digital MDM Operations Manual.
System Notes
Matrx by Parker recommends the use of a permanently
mounted oxygen analyzer in the patient circuit to
monitor the oxygen levels being administered to the
patient. Additional monitoring should be employed
particularly if the delivered oxygen and nitrous oxide is
being used as background to intravenous or inhalant
deep sedation and anesthesia. TheAmerican Society of
Anesthesiology (ASA) encourages the use of an ECG,
a Blood Pressure Monitor, and a Pulse Oximeter in
these cases.
NFPA Requirements and Warnings
General System Requirements
The Digital MDM mixer complies with the National Fire
Protection Association (NFPA) 99C code requirements.
The NFPA is a body which has formulated a set of
regulations widely adopted by local building authorities
as the basis for their own local building code
requirements.
Do not change fittings or tubing sizes
from those specified in this manual
. The fittings and
tubing incorporate unique tubing sizes for each gas, an
important safety feature to prevent accidental crossing
of lines during installation or maintenance.
The following basic requirements must be observed:
1. Remote tank rooms must be locked.
2. Ventilation of at least 72 square inches is required
in the tank room or the cabinet.
WARNING
Medical gas fittings are manufactured according to
the Diameter Indexed Safety System (DISS) to
prevent the delivery of the wrong gas to the patient.
The correct supply line sizes are as follows:
oxygen
1/2” OD copper
nitrous oxide
3/8” OD copper
evacuation
5/8” OD copper
The installer must ensure that each gas is
connected to the proper stop valve to preserve the
integrity of the Diameter Indexed Safety System
(DISS).
3. Type K or L seamless, copper tubing or standard
weight brass piping is required.
4. Copper-to-copper joints made using phosphorous
brazing filler are allowed without flux.
5. During brazing, piping must be continuously purged
with dry nitrogen.
6. The piping system must be tested for leaks at 150
psi followed by a 24-hour pressure test at 75 psi.
NOTE
Do not connect the Digital MDM during these
pipeline tests.
Manifold Requirements
The Digital MDM mixer is intended for Type II facilities
consisting of less than 2000 cu.ft. of gas and less than
ten use points for the gas.
1. All systems shall be a minimum 2+2 configuration.
2. For a non-remote tank room, manual or automatic
switchover is permitted. For a remote tank room,
automatic switchover is required.
NOTE
A tank room is considered remote when it
cannot be accessed from within the office.
3. A remote tank room requires a remote shutoff
valve.
4. Each tank requires independent pressure
regulators.
