
PressureTransducerswithAmp.
INSTRUCTIONMANUAL
Ver.2.0
PA-870/PA-878series
PressureSwitch
PS87
series
1
HandlingNotesforSafetyuse
CAUTION …ThiscautionmarkdescribeswhenthereisapossibilitythatundermaysufferfromdamageorPhysicaldamage
mayoccuriftheproductisusedimproperly.
Caution
Caution
Caution
Beforeoperatingourproduct,readthismanualthoroughly. Youmaynotunderstandalloftheexplanationsthefirsttimethorough,butbeonthelookoutfor
anyspecialdirections.
Piping:
Installtheproductbyscrewingthepressureporttothematchingfitting.
Duringthisoperation,putthewrenchonlytothehexagonalportionanddonotgiveanyunnecessaryforcetothemainbodyandtheleadwire.
Wiring:
Theconnectionofwiringisasshowninthetablebelow.
Others:
_Thisproductcanbeusedforliquids/gasescompatiblewithSUS316andHastelloyÑC-22.
`Neverinsertaforeignmattersuchaswirethroughthepressureport.
aNevertakeintheover-pressureexceedingthemaximumpressure.
bNevershort-circuittheswitchoutputtotheotherterminals,norconnectthemtothelowimpedanceloadthatwouldallowtheoutputcurrentover100mA.
Theseconductmightdamagetheinternalcircuitry.
cUseastableDCpowersupplyforthepowersource.Asurgeabsorbingcircuit(diodes,varistor,etc.)isnecessaryifaninductiveloadsuchasarelayor
solenoidisconnectedtothepowerlineand/ortotheswitchoutput(s).TheFGterminalontheunitpowersupplyshouldbeearthed.
(Pleaserefertothefollowingdiagrams)
ThankyouforpurchasingNIDECCOPALELECTRONICS
CORP.product.
In order to use the product correctly and most
appropriately, please completely read this manual before
useandkeepitforfuturereference.
Nishi-ShinjukuKimurayaBidg.,7-5-25
Nishi-ShinjukuShinjuku-kuTokyo160-0023,JapanPhone.:(03)3364-7055
Formoredetailedinformationpleaseaskforthe
nearestdistributororthefollowingsalescenter.
EarthingtoFGterminal
TheterminalFGisgrounded
SurgesbsorbingCircuit
SwitchingPowerSupply PowerLine
Power(+)
Relay
or
Solenoid
ex.Diodes,Varistor
DCoutput
FG
ACinput
*Nevershort-circuittheswitchoutput(s)totheotherterminals,
norconnect themto thelow impedanceload thatwould allow
theoutputcurrent over100mA. These conductmight damage
theinternalcircuitry.
PA-870 PA-878 PS87
P/N
Wirecolor
Red
Black
White
Green
Gray(Shield)
Power(+)
Common
Analogoutput
None
Fitting
Power(+)
NoConnection
Output
None
Fitting
Power(+)
Power(-)
Switchoutput(+)
Switchoutput(-)
None