Porter 2000 - Troubleshooting Chart

TROUBLESHOOTING CHART FOR MXR FLOWMETERS
SYMPTOM
POSSIBLE CAUSE
REMEDY
No flow of O
2
or N
2
O wh en ON
/OFF switch is ON and le ft
knob is set at a c oncentr ation
of N
2
O or O
2
the rig ht knob is
rotat ed to g iv e flow.
1. O
2
supply n ot turned ON.
2. Mac hine not conne cted to
pipelin e system .
3. Emp ty O
2
cylind ers.
1. T urn O
2
regu lator in tank
room O N.
2. Con nect to wall outle t.
3. Rep la ce with fu ll cylind er.
Can ge t O
2
flow b ut canno t get
N
2
O flow.
1. N
2
O supp ly not t urned O N.
2. N
2
O cylin der empty.
1. Tu rn ON N
2
O cylin der.
2. Rep la ce with fu ll cylind er.
.
With N 2O con ce ntratio n set,
both flows vary propo rtionall y
with no change in flow setting.
O
2
regulat or is varying pipe line
pressur e.
Check O
2
reg ulator. Be sure
O
2
m anifold pressure is 50
PSIG ± 2 PSIG. I f not, call
Dealer for se rvice.
Meter will flow N
2
O witho ut any
O
2
flow i n the O
2
tube.
Failsa fe failu re.
Take o ut of ser vice and return
to Por ter.
Cannot get 9 ½ L/m in O
2
flow
with conce ntratio n co ntrol knob
OFF and flow c ontrol k nob full
ON.
Low O
2
pres sure se tting.
Check O
2
reg ulator. Be sure
O
2
m anifold pressure is 50
PSIG ± 2 PSIG. I f not, call
Dealer for se rvice.
Gas is le aking from the
ON/OFF switch.
Nick or cut in o’ ring s on the
ON/OFF switch.
Call Dea ler for service.
Patient not fee ling eff ects of
gases.
1. Ou te r mask is not fit
prope rly to pa tient’s face.
2. Gas flows do not mee t
patien t’s requiremen t.
1. Fit s o in ner m ask is secur e
to face but out er m ask is j us t
off fa ce.
2. Re -adjust gas flows to
obtain accepta ble bag action.
Bag is g oing fla t durin g
proce dure.
1. Gas flows do not mee t
patien t’s requiremen t.
2. Ou te r mask is not fit
prope rly to pa tient’s face.
1. Re -adjust gas flows to
obtain accepta ble bag a ction.
2. Fit s o in ner m ask is secur e
to face but out er m ask is j ust
off fa ce.
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