KYOWA PHB-A Instruction Manual

Ｐ Ｈ Ｂ －Ａ Pressu re Tran sd u cer INSTR UCTION M ANUAL
Thank you for purchasing this KYOWA product. Before using it, read this
instruction manual carefully. Also, keep the manual within easy reach so that
you can refer to whenever necessary.
Specifications and dimensions described in this manual could be changed
without notice. Please visit our website for the latest version.
1. Calling th e op erator' s attention
The following cautionary symbols and headlines are used to invite the
operator' s attention. Be sure to observe the accompanying precautions in order
to safeguard the operator and preserve the performance of the instrument.
Improper handling can cause serious injury to the
W arnin g
operator
Improper handling can cause deleterious effects to the
Cau tion
operator' s body
Cautions are given to invite the operator' s attention, in
Caution
order to avoid instrument failure or mal- function.
2. Im portant n otice
Unless specified, the transducer must not be used under hydrogen
environment.
3. Safety precautions
Avoid pressure in excess of the allowable overload rating, or the
instrument can explode.
Avoid contact of a projecting object with the sensing surface, or the latter
may crack to result in the transducer' s explosion.
Use the specified tightening torque. Improper tightening torque may
cause the transducer' s explosion.
If excessive pressure could possibly occur, provide protective casing
around the transducer installation, in order to safeguard the operator.
Select sufficiently strong material for mounting screw hole.
Dismount the transducer only after the applied pressure has been
completely removed.
SUS630 (JIS G4303) is used where the transducer contacts a liquid.
Avoid application of the transducer to a corrosive liquid or gas.
Do not use PHB- A- 20MP, 30MP, 50MP for endurance / fatigue tests.
Avoid using for long- term measurement of gas pressure if much
importance is attached to stability of output in a minute range.
W arning
Cau tion
4. Han dlin g precaution s
Do not disassemble the transducer.
Take care to avoid damage to the liquid- contacting part and screw.
Protection code is IP51. It should not be used underwater.
No condensing. If it formed condensation, immediately dry.
Do not bend the cable at its outlet.
Make sure that the bending radius of cable is longer than 10 times of a
diameter of the cable.
In vibration environment, fix the cable at its outlet and required portions.
Mount the transducer possibly closest to the pressure source.
If the rising time of the dynamic phenomenon to be measured is short, the
total response including the transducer and measuring instrument in use
may be problem.
Before measurement, check their specifications.
5. Installation
5.1 Using a gasket, mount the transducer. Apply your spanner to the spanner
rest on the connecting screw section (Flat to flat 14) or the transducer may
be damaged. Also, turn the cable together to protect the cable from
damage due to twisting.
･ Recommended tightening torque: 30N- m.
･ Allowable maximum tightening torque is 60N- m.
5.2 Use a new gasket.
5.3 A seal tape may be tied around the screw for sealing.
5.4 If the measurement object fluid is a liquid, allow the liquid to enter into the
pressure chamber by loosening the needle screw provided on the
transducer, thereby letting contained air go out.
・ Tightening torque for the needle screw is 0.5 N- m.
5.5 When conduit is used, install a cock or valve between the conduit and
connection portion to easily mount and demount the wire conduit.
IM-T-285Ｃ Ｊ ｕｌ 2022
Caution