Pressure Transducers with Amp.
INSTRUCTION MANUAL
Ver.2.0
PA-870/PA-878
series
Pressure Switch
PS87
series
1
Handling Notes for Safety use
CAUTION
…This caution mark describes when there is a possibility that under may suffer from damage or Physical damage
may occur if the product is used improperly.
Caution
Caution
Caution
Before operating our product, read this manual thoroughly.
You may not understand all of the explanations the first time thorough, but be on the lookout for
any special directions.
Piping:
Install the product by screwing the pressure port to the matching fitting.
During this operation, put the wrench only to the hexagonal portion and do not give any unnecessary force to the main body and the lead wire.
Wiring:
The connection of wiring is as shown in the table below.
Others:
_
This product can be used for liquids/gases compatible with SUS316 and Hastelloy
Ñ
C-22.
`
Never insert a foreign matter such as wire through the pressure port.
a
Never take in the over-pressure exceeding the maximum pressure.
b
Never short-circuit the switch output to the other terminals, nor connect them to the low impedance load that would allow the output current over 100mA.
These conduct might damage the internal circuitry.
c
Use a stable DC power supply for the power source. A surge absorbing circuit (diodes, varistor, etc.) is necessary if an inductive load such as a relay or
solenoid is connected to the power line and/or to the switch output(s). The FG terminal on the unit power supply should be earthed.
（Please refer to the following diagrams）
Thank you for purchasing NIDEC COPAL ELECTRONICS
CORP. product.
In order to use the product correctly and most
appropriately, please completely read this manual before
use and keep it for future reference.
Nishi-Shinjuku Kimuraya Bidg. , 7-5-25
Nishi-Shinjuku Shinjuku-ku Tokyo 160-0023, Japan Phone.：（03）
3364-7055
For more detailed information please ask for the
nearest distributor or the following sales center.
Earthing to FG terminal
The terminal FG is grounded
Surge sbsorbing Circuit
Switching Power Supply
Power Line
Power(+)
Relay
or
Solenoid
ex. Diodes, Varistor
DC output
FG
AC input
＊Never short-circuit the switch output(s) to the other terminals,
nor connect them to the low impedance load that would allow
the output current over 100mA. These conduct might damage
the internal circuitry.
PA-870
PA-878
PS87
P/N
Wire color
Red
Black
White
Green
Gray(Shield)
Power (+)
Common
Analog output
None
Fitting
Power (+)
No Connection
Output
None
Fitting
Power (+)
Power (-)
Switch output (+)
Switch output (-)
None
