SMC Networks PF3A801H-L Operation Manual page 8

●Product handling
Mounting
•Tighten to the specified tightening torque.
If the tightening torque is exceeded, the product can be damaged.
Insufficient torque can cause displacement of the product from its proper position and the looseness of the
mounting screws.
•If a commercially available switching power supply is used, be sure to ground the frame ground (FG)
terminal.
•Do not drop, hit or apply excessive shock to the product.
Otherwise damage to the internal components may result, causing malfunction.
•Do not pull the lead wire forcefully, or lift the product by the lead wire.
(Tensile strength 49 N or less)
Hold the product by the body when handling to prevent damage.
•Any dust left in the piping should be flushed out by air blow before connecting the piping to the product.
Otherwise it can cause damage or malfunction.
•Refer to the flow direction of the fluid indicated on the product body for installation and piping.
•Do not mount the body with the bottom facing upwards.
Do not mount the product with the display facing upward.
Retention of air can cause inability to measure accurately.
•Do not insert metal wires or other foreign matter into the flow path.
This can damage the sensor causing failure or malfunction.
•Never mount the product in a place that will be used as a scaffold during piping.
The product may be damaged if excessive force is applied by stepping or climbing onto it.
•Do not apply excessive rotation force to the monitor.
The monitor with integrated display can be rotated 90
Rotating the display with excessive force will damage the end stopper.
•Visibility decreases if the display is viewed from the opposite side to the buttons.
Check the settings and display from in front of the display.
•If there is a risk of foreign matter entering the fluid, install a filter of mist separator at the inlet to avoid
failure and malfunction.
Otherwise it can cause damage or malfunction. Or the flow switch will become unable to measure accurately.
Air quality specified in the product specifications can be satisfied by using the pneumatic circuit below.
•If the fluid flow on the IN side (entry side) of the product is unstable, correct measurement will not be
possible.
If a valve is used on the IN side (entry side) of the product, the fluid may be unstable due to the change of the
effective area, and there may be an error in the flow measurement results.
•If a residual pressure release 3-port valve is installed on the inlet side of the flow switch and air flows
backward, the displayed flow rate will fluctuate.
•Avoid installing the lubricator on the inlet side of the digital flow switch as it may cause oil inflow and
damage internal parts.
Recommended pneumatic circuit example (for compressed air)
o
clockwise.
-7-
No.PF※※-OMY0005