PS Magazine - JANUARY 1983
PS, The Preventative Maintenance Monthly
ISSUE 362
JANUARY 1983
'
Purging every
90
days, oR more ofteN If needed, helps geT THe moIst AIR ouT of
your fIre controL InsTrument and prevents fungus from growiNg InsIde It.
ChargIng he±ps keep the moisT Air out.
PurgIng won't push out drops of waTeR, Tho. ²f your fIRe controL insTrument Is
water-loggeD, senD it to suppoRT for repAir.
H
eiE
y
s Wlat YoL N±²d
•
SC 4±3l-²5³cL´jµ¶
(Jul 75)
listS eqUipmEnT -Needed ±o_ ²rge
anD charge.
Warn
i
Ng
:
Never
drop the cyl-
indER.
It
coulD explodE±
IN
confinEd arEas
,
Get ventilat²oN
bEcAusE too
M³CH
N²troG³N gaS
cAn
kILL yO³´
ACCµp¶ OnlY
±
·¸¹50º»6
¼½¾¿
7)
and Your
inÀÁRÂmenÃ'Ä Å¸ÆÇ ¶ell You how Èo
puÉGe Ênd ËhaÌÍe moÎÏ fÐre ConÑroL
ÒÓÔÕÖI¶rogeÖ
cYLIÖderÄ
inÎ×ØumÙnÚÄÛ
²
Purging kܶ,
ns·
4931Ý00Þ
·
0ßàáâãä0å
-
³
CHEck
æuç YO³è
¸1¹, º2»
a´<
é20ê ë¸ìíî ïOme
TM's
hÊvð IÖFñ
oÖ ò³rg
²n
g
and µ
H
ar
gIng
³
q
³
²
p
´
óônõ
an¶
öOw ÷O ³øe
it
¼
ThE
³´µ¶·e¸
bdy
½Hou¾D B¿
PaIÀÁÂA
gray
ÃÄÅ
2
blAK BAN¹
½
.
ÆEfRÇ
You
aÈÉÊËÁ
A
clinder fR
U±GIN²,
ÌÍ¿
³F
ÎÏE VaÐÑE Ò½ a
C´
µ
•
Ó8ÔÕÖ¿×Ø¿½
AµD h
A
½ RÙ
g
ÚÛÜÝaÞß
IN
t
E
r
-
14
wI¶h
2
bLaùk
búndû
¶
L
0
H
·
._ ·
±.
NA T ºEA
½.
"
»woRking
ORder.
lin¼ up your
½em for good
¾ake the vALve protect¿oN cAp off
youR nItrogen cyLinder and quickly
À
Ápen and shut the VaLve. ÂÃis'll Älow
VÊLüe
òØo¶eù¶ýoþ
Cúp
any dust or water out of The valve seaÅ.
Æf nothing haÇpens, the cylIndeR Is
empty or the valve stem Is sÈuck in Éhe
cloSeÊ posËÌÍÎoN. ²f you smÏlÐ someÑ
Thing, youÒve gÓT The wÔoNg cylÕndÖR
'cause nITRogen has no smell×
.
Ø
Mount the
Ù
reguLatoR on the cyÚ
ÿiÍh
pĀeÄÎure
ā
ÍaÍe
ĂoW
preÎÎÂĀe
gaÍe
²
equaL to or
neAR tÛe servIce pressure stamÜeD on
³
the cyLinDer
(àá00âã0àä
or
ãã6ä)å
Æt
has to ÄÝ more than
à00
PÞÆ or Yßu
caàát do a good purgIng jâÄ.
²f the pressure's
ã
too low, ge
ä
t
another cylIndeR from suppLy. åæver
çrain the nitrogen cylinder ÄeLow
à00
èÞÆé ¾he pressure heLps keep diRtê and
WateR out of youR cylinderë
²f everythìng Ií
OKæ
sLowly open the
regulator vaîve untiL tïe Low"pressure
lðNdeñ
and The hose on the RegULaTor.
¸¹º_
»¼½
òou'll need
9
/çG
and
à
óôõIn wrenchesö
¾ake care
÷
noT to oveRøtIghten. ¾he
Ärass Threads damage easIly. ùoTh
'è:éêëì=míî!ïðñòóôõ_
rúgulatoR gage
û
s shouLü Äe ýegIsteþing gage regÿstĀās
à0
PÞĂ. ¾hen close the
zeRo.
valve quIckly. ¾hIs clears water, dust,
ÞLowLy open The cyLIndeR vaLve uQtIL spideRs, etcă, out of tĄe hose so they
the highõÜąressuRe gage needle stops doĆ't get Älown into youR InsTRument.
¾5
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