SMC Networks AWM20-01 Series Operation Manual page 6

(3) Avoid the application where charge and discharge of pressure to/from a standard bowl is switched
frequently. This may damage the bowl. A metal bowl is recommended in these cases.
(4) Shield from ultra violet light and radiation with protective cover.
(5) A safety device needs to be installed if output pressure is exceeding the set pressure, otherwise
this can cause breakage of outlet device and equipment or lead to malfunction.
Caution
(1) AD27-D with auto drain may have leakage of accumulated drain during pressure exhaust (this
leakage is allowed in their constructions and not considered failure). Be sure to connect piping for
drain.
(2) Allowed air consumption from the exhaust port is 0.1 L/min(ANR) or less.
(3) Please install the product in a location where pulsation is unlikely to occur. When the difference
between the inside and outside exceeds 0.1MPa, the element might be broken
Warning
(1) Grease used on the internal sliding parts and seals may flow to the outlet side.
(2) N.O. type auto drain should be operated under the following conditions to avoid malfunction.
Operating compressor: 0.75 kW or more, Discharged flow rate: 100 L/min (ANR) or more
When using 2 or more auto drains, multiply the value above by the number of auto drains to find
the capacity of the compressors you will need. For example, when using 2 auto drains, 1.5 kW
(200 L/min (ANR)) of the compressor capacity is required. The operating pressure should be 0.1
MPa or more.
(3) N.C. type auto drain should be operated under the following conditions to avoid malfunction.
Operating pressure for AD27: 0.1 MPa or more, for AD37 and AD47: 0.15 MPa or more.
(4) Removing of residual pressure (removing of outlet pressure) will not be achieved by releasing inlet
pressure. To remove residual pressure, please use the combination of a filter regulator with
backflow function and mist separator.
(5) Long absence of operation or operation with sealed circuit or balancing circuit on the outlet side
may cause set pressure fluctuation.
(6) Set range of outlet pressure shall be 85% or less of the inlet pressure. Operating at a setting
exceeding 85% causes the outlet pressure to be easily affected by fluctuations in flow rate and inlet
pressure, leading to instability.
(7) Since the safety margin is calculated to the maximum value of the set pressure range shown in the
specification table, the pressure setting may be over the maximum value. However, use the
product within the specified range.
(8) Do not use the product with circuit which requires high exhaust sensitivity or set precision.
(9) Do not flow air exceeding the maximum air flow rate. If the maximum air flow rate is momentarily
exceeded, it may cause splashing of drainage and oil on the outlet side, and damage to the
equipment.
Selection
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