INTENDED USE:
Flowmeter for Analgesia Delivery
System
This device is intended for patient use by an
attending physician, dentist or licensed
professional properly trained in its use. Porter
Instrument recommends the user be thoroughly
familiar with the use of Nitrous Oxide - Oxygen
Conscious Sedation for patient analgesia and be
properly trained in its administration prior to
using this product. For training requirements on
the administration of Nitrous Oxide - Oxygen
Conscious Sedation, contact the appropriate
regulatory authority in your country, state, or
province. Training is recommended to provide a
practical, hands-on capability and an
understanding of the behavioral aspects of
Nitrous Oxide Sedation and will complement the
safety features of this device.
USE SCAVENGING
Monitor for N
2
O in the patient treatment area to
insure that controls are effective in achieving low
levels of PPM (parts per million) exposure.
Contact your Porter dealer for details on
monitors and testing.
GAS SUPPLY CONNECTION
After installation of the flowmeter, connect the
nitrous oxide and oxide supply lines to the
Diameter Indexed Safety System (DISS) fittings
located on the back of the flowmeter unit. It is
important that the regulators for both gases be
set to give pressures in the range of 53 PSIG ±2
PSIG.
Confirm the absence of leaks at pressure
connections on the unit. Bubbles will appear at
leaking locations when a soap / water solution is
used. This procedure is recommended each
time a cylinder is changed.
Refer to FM-916 Mobile “E” Tank Stand
Installation and Instructions for connecting gas
supply to the flowmeter and tank installation to
mobile stand.
MDM SPECIFICATIONS: (Figure 3)
Physical Size: 5” wide x 9 ¾” high x 12 ¼” deep
Weight: 7 lb.
Fresh Gas Outlet Size: 15mm ID x 22 mm OD
Nitrous Oxide Inlet: Male DISS
Oxygen Inlet: Male DISS
Maximum Oxygen Flow Rate: 10 LPM @ 50-55 PSIG Inlet and 50% setting of mixture dial
Maximum Nitrous Oxide Flow Rate: 10 LPM @ 50-55 PSIG Inlet and 50% setting of mixture dial
Minimum Nitrous Oxide Concentration: 0%
Maximum Nitrous Oxide Concentration: 70%
Optional Maximum N2O Concentration: 50%
Oxygen and Nitrous Oxide Flow Tube: Accuracy (Full Scale) ½ L
Inlet Oxygen Pressure Maximum: 50 - 55 PSIG
Inlet Nitrous Oxide Pressure Maximum: 50 - 55 PSIG
Mixture Dial Calibrations: With supply pressure at 50 to 55 PSIG and total flow of 10 LPM, oxygen
and nitrous oxide flow rates within ½ LPM of mixture dial calibration. (As indicated on individual
flow tubes.)
Total Flow Range 2 to 20 LPM at 50 to 55 PSIG supply pressure and dial mixture set at 50%
(As indicated on individual flow tubes.)
Total Flow Variation with supply pressure at 50 to 55 PSIG and total flow of 10 LPM, total flow
variation within ½ LPM of total flow throughout mixture dial range. (As indicated on individual flow
tubes.)
NOTE: All specifications subject to manufacturing tolerance.
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