16. Perform the Check for Crossed Lines, the
Leak Test of the Flowmeter Installation, and
the Flowmeter Function Testing. Flowmeter
installation is now complete.
FLOWMETER ACCESSORIES
AVS (Automatic Vacuum Switch) Installation
to Remote Bag Tee Mount or Through Wall
Adapter Assembly
Screw AVS 5000 knurled seal nut down tight
onto remote bag tee mount or wall adapter,
making sure the rubber washer is inside seal
nut. When tight, AVS should not rotate. Then
screw bag tee seal nut onto AVS. Bag tee
should not rotate. Refer to FM-809 for User
Instructions for Assembly, Installation and
Cleaning of Porter Scavenger Rubber Goods
System.
Rubber Goods and Bag Tee Storage
Remote
bag tee can be disconnected with rubber goods
for storage by unscrewing the knurled seal nut of
the bag tee from the remote surface mount or
through wall adapter
.
CHECK FOR CROSSED LINES
(Refer to NFPA Gas and Vacuum Systems
Code for Type II Systems) (See
cross+protection Warning
in this brochure.)
Open both the O
2
and N
2
O shut-off valves to
allow gas flow to the flowmeter.
Before using
flowmeter, check for crossed lines by
opening the O
2
valve and making certain that
only Oxygen flows through the flowmeter.
LEAK TEST
the flowmeter installation for
working pressure leaks.
After all hose
connections are tightened, turn the flow control
knobs to the off position and the On / Standby
(Off) switch to the Standby (Off) position.
Confirm that the DISS Shut-Off Valves are in the
open position. Pressurize the sedation gas
supply lines with 50 PSI. Observe any pressure
decay after an overnight time period. (5 PSI
drop allowed.)
POWER SUPPLY INSTALLATION
Refer to Power Supply Installation Illustration on
the following page.
FLOWMETER FUNCTION TESTING
Perform final installation checks by function
testing the flowmeter. Refer to FM-1061 MXR-D
Flowmeter Instructions and Safety
Considerations MXR Models of Porter
Conscious Sedation Flowmeters and Bag Tee.
MAINTENANCE AND SERVICE
Flowmeter Service
It is advisable, on a two year cycle, to have the
MXR Flowmeter factory checked and serviced.
Use Scavenging
Monitor for N
2
O in the operatory to insure that
controls are effective in achieving low levels of
ppm (parts per million) exposure. Contact
Porter for details on monitors and testing.
Inspect and maintain
the analgesia delivery
system to prevent N
2
O leaks in all hoses,
connections and fittings. Repair all leaks
immediately.
YEARLY LEAK CHECK
(or if connections to
flowmeter are disconnected and then
reconnected, such as after a flowmeter service
at the factory or if the DISS / DISS hose is
replaced): Leak test the flowmeter system for
working pressure leaks. After all hose
connections are tightened, turn the flow control
knobs to the off position and the On / Standby
(Off) switch to the STANDBY position. Confirm
that the DISS Shut-Off Valves are in the open
position. Pressurize the sedation gas supply
lines with 50 PSI. Observe any pressure decay
after an overnight time period. (5 PSI drop
allowed.)
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