<4.
Wiring and Piping
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4-1
IM 21B03D01-01E
4. Wiring and Piping
4.1 Piping
4.1.1 Supply Air
For easy operation and maintenance, supply air
must be clean and dry.
IMPORTANT
Thoroughly study selection of an air supply
system, supply air suction point, installation
of the header, and air supply piping so that no
water, oil, or dust is carried into the current-to-
pneumatic converter via the piping.
Table 4.1 shows the air supply pressure for this
instrument.
For air consumption, see the standard
specifications.
Table 4.1
Recommended Supply Air Pressure
Output
Signal Code
Output Signal
Supply Air
Pressure
1
20 to 100kPa
130 to 150kPa
2
40 to 200kPa
230 to 260kPa
3
0.2 to 1.0kgf/cm
2
1.3 to 1.5kgf/cm
2
4
0.4 to 2.0kgf/cm
2
2.3 to 2.6kgf/cm
2
5
0.2 to 1.0bar
1.3 to 1.5bar
6
0.4 to 2.0bar
2.3 to 2.6bar
7
3 to 15psi
19 to 22psi
8
6 to 30psi
34 to 37psi
9
3 to 27psi
34 to 36psi
4.1.2 Air Supply Piping
Connect air supply piping to the supply pressure
connection
IN
of the converter.
Generally, use copper tubes of 6mm O.D. and 4mm
I.D., air piping, and coupling to install air supply
piping. After installing the piping, check for leakage.
4.1.3 Output Piping
Connect output air piping to the output connection
OUT
of the converter.
Generally, use copper tubes of 6mm O.D. and 4mm
I.D., air piping, and coupling to install output air
piping. After installing the piping, check for leakage.
4.2 General-Use and Flameproof
Type Wiring
4.2.1 Cable Selection
(1) Use twisted wires or cables with performance
equal to or better than that of 600V vinyl-
insulated cables (JIS C 3307) for wiring cables.
(2) Use shielded cables for wiring in a place
susceptible to noise influence.
(3) For wiring in an area where high or low ambient
temperatures exist, use wires or cables that
meet service environment requirements.
IMPORTANT
If the PK200 is flameproof and the ambient
temperature is 50°C or more, use an external
cable having a maximum allowable heat
resistance of at least 70°C in consideration of
the instrument’s generation of heat or the cable’s
self-heating.
(4) For use in an atmosphere where harmful gas,
liquid, oil, or solvent exists, use wires or cables
with materials sufficiently durable to such
substances.
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