Sierra Monitor Corporation ZSE30 - Manual (Page 6)

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•Blow off all the dust inside the pipes before piping the pressure switch.
Otherwise it can cause damage or malfunction.
•Clean the inside of the pipe of dust or tape sealant when screwing pipes or joints.
When using tape sealant, leave a couple of screw threads unwrapped with tape sealant.
Otherwise it can cause damage or malfunction.
•Do not apply excessive external force with joints such as hoses when installing with a panel
mount adapter.
Otherwise it can damage the pipe joint of the pressure switch or cause drop off from the panel
mount adapter.
•Do not insert wires or other foreign matter into the pressure measurement port.
It can damage the pressure sensor causing failure or malfunction.
•Connect frame-ground terminal (FG terminal) to the ground when using a switching power supply.
•Insert a noise filter (power line noise filter, ferrite core, etc.) between the switching power supply
and this pressure switch when using analog output.
•Do not apply unnecessary forces such as twisting, pulling, moment loads, etc. on fittings or
tubing.
•When using a brand of tubing other than SMC, be careful of the tolerance of the tube’s O.D.
1) Nylon tube
≤±0.1mm
2) Soft nylon tube
≤±0.1mm
3) Polyurethane tube
≤+0.15mm, ≤-0.2mm
•This pressure sensor is for air only.
Please contact with SMC if you need to use other fluid.
♦Wiring
•Do not bend or apply tensile stress to lead wires repeatedly.
Wiring with repetitive bending stress or tensile stress can cause breakage of the lead wires.
Replace the product when damage to a lead wire is observed.
•Connect wires and cables correctly.
Miswiring can break the pressure switch depending on a miswired circuit.
•Do not connect wires while the power is on.
Otherwise it can break the circuit inside the pressure switch causing malfunction.
•Do not lay wires or cables with power cable or high-voltage cable in the same wiring route.
Otherwise the wires to the pressure switch can be contaminated with noise or induced surge
voltage from power lines or high voltage lines causing malfunction.
Lay the wires to the pressure switch to a wire duct or in a protective tube other than those for
power lines or high voltage lines.
•Verify the insulation of wiring.
Poor insulation (interference with other circuit, poor insulation between terminals and etc.) can
introduce excess voltage or current to the pressure switch causing damage.
•Keep wiring as short as possible to prevent contamination from noise and induced surge voltage.
Do not use a cable longer than 10m. Consult with SMC for the use with a cable longer than 10 m.
Connect the 0V DC wire (blue line) directly or as close as possible to the 0V DC terminal of the
DC power supply.
•The direct-current power supply to combine should use UL authorization power supply which is
the class 2 power supply based on UL 1310 or the power supply is using the transformer of a
class 2 based on UL 1585.
♦Environment
•Do not use the product in an atmosphere containing corrosive gas, chemicals, sea water, water
or vapor, or in a place where there is a possibility of adhesion of those substances to the product.
It can cause failure or malfunction.
•Avoid exposure of this product to direct sunlight.
Use sunshades if the product is exposed to direct sunlight.
Otherwise it can cause failure or malfunction.
•Do not use in a place where water, oil or chemicals splashes.
Otherwise it can cause failure or malfunction.
PS##-OMF0010-B