NOTE
Follow the instruction given below when designing, selection and handling your pressure sensor.
•
The instructions on design and selection.
Installation, wiring, environment of use, adjustment, operation and maintenance described below must also be
followed.
•
Product specifications
⋅
Operate the pressure sensor with the specified voltage.
Operation with a voltage beyond specifications can cause malfunction or damage of the pressure sensor. Insufficient
supply voltage may not drive a load due to a voltage drop inside the pressure sensor. Verify the operating voltage of the
load before use.
⋅
Do not operate beyond specification range.
Fire, malfunction or sensor damage can result.
⋅
Do not exceed the specified maximum allowable load.
Otherwise it can cause damage or shorten the lifetime of the pressure sensor.
⋅
Reserve a space for maintenance.
Remember to leave space for maintenance.
•
Product handling
•
Installation
⋅
Do no drop, hit or apply excessive shock (980 m/s
2
) to the pressure sensor.
Otherwise it can result in damage to the pressure sensor causing failure or malfunction.
⋅
Do not pull lead wires or lift the body with lead wires. (Pulling strength less than 50N)
Hold the body when handing. Otherwise it can result in damage of the pressure sensor causing failure or malfunction.
⋅
Follow the specified tightening torque
Excessive tightening torque can break the pressure sensor. Insufficient tightening torque can displace the pressure
sensor from the original position or loosen the mounting screws. The standard torque of the fittings are as shown in
below.
M3 : Tighten by hand, then turn it 1/4 revolutions with a wrench
M5 : Tighten by hand, then turn it 1/6 revolutions with a wrench
R
⋅
NPT1/8 : 7 to 9 N
⋅
m
⋅
When piping, apply the wrench only to the metal option (attachment to be piped) integrated into the piping.
Applying the wrench in other position can break the pressure sensor.
⋅
Blow off all the dust inside the pipes before piping the pressure sensor.
Otherwise it can cause damage or malfunction.
⋅
When using tape sealant, leave a couple of screw threads unwrapped with tape sealant.
Otherwise it can cause damage or malfunction.
⋅
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 sensor.
•
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 sensor depending on a miswired circuit.
Do not connect wires while the power is on.
Otherwise it can break the circuit inside the pressure sensor 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 sensor can be contaminated with noise or induced surge voltage from power lines
or high voltage lines causing malfunction. Lay the wires to the pressure sensor 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 sensor causing damage.
- 4 -
PS##-OMG0004
