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Caution
• Proximity switch cord of FF, FW and FS pumps consists of three wires of black, white and red. Wrong connection
of them will cause the failure of proximity switch.
Caution
1. Standard proximity switch can not be used to handle flammable liquid such as solvent or so. Ask IWAKI for
explosion-proof proximity switch.
2. Electrode can not be used to handle flammable liquid. If used, it may spark resulting in fire.
Caution
• Use power source of DC24V plus minus 10% range.
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Air piping
Figure 5 and 6 show electrical wiring and air piping schemes. Make the air piping according to following procedures
referring to the schemes.
(1) Precautions for air piping
a) Bad quality air will give bad influence to the performance and life of the equipments.
Supply clean air which contains no solid matters, water and oil.
b) Flush pipes before they are connected. When the seal tape is used for piping, pay attention so that the tape can be
get into the pipe.
c) Install a regulator before the electro-pneumatic regulator (option) and adjust supplied air pressure to get the stable
performance.
d) If the electro-pneumatic regulator is not used, connect pipe from manual regulator
(FR) on Fig. 5 and 6 to the solenoid valve.
Note: The secondary side set pressure of manual regulator must not exceed the max. supply air pressure of the pump.
Refer to the instruction manual of the used pump.
(Pay attention to the pumped liquid temperature range.)
(2) Piping of electro-pneumatic regulator
Install the electro-pneumatic regulator between the manual regulator and the solenoid valve. Refer to the
instruction manual of the electro-pneumatic regulator for details.
The first side set pressure of electro-pneumatic regulator : Between the max. supply air pressure of pump and the
max. supply air pressure of pump + 0.05 MPa (Pay attention to the pumped liquid temperature range.)
