Azbil RA1B, Руководство пользователя

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10
Chapter 3 Operation
z Model RA1B-1
(1) Remove the cover screw (small M6×6 mm cross head screw).
(2) Turn the slotted screw (M6) while checking a pressure gauge or other appropriate
instrument, and adjust the pressure of the secondary side to the prescribed level.
Tightening the slotted screw increases the pressure and loosening it reduces the
pressure.
(3) Tighten the cover screw.
(4) Check again that the pressure is at the specified level to complete the procedure.
z
Required tool and tightening torque
•
Cover screw
Tool: cross head screwdriver
Tightening torque: 7 ± 0.4 N·m
•
Pressure adjustment screw
Tool: screwdriver
(maximum width 4.8 mm or less; nominal thickness 1 mm or less; shank length 20 mm
or more)
Example: HOZAN D-640-100
Handling Precautions
•
Be careful not to drop or lose the cover screw when it is removed.
• If the slotted screw is overtightened beyond the adjustable range, it may fall into
the pressure regulator, making it impossible to adjust the pressure.
• If the slotted screw is loosened too much, it may fall off the pressure regulator, or
it may interfere with the cover screw, resulting in damage or malfunction.
• Use a screwdriver that does not come into contact with the M6 female threads. If
the screw threads are damaged, this device may malfunction or fail to adjust the
pressure.
z
Model RA1B-2, model RA1B-3
(1) Loosen the M6 flange nut.
(2) Turn the pressure adjustment knob to adjust the pressure of the secondary side to the
prescribed level. Tightening the pressure adjustment knob increases the pressure and
loosening it reduces the pressure.
(3) Tighten the M6 flange nut, taking care not to misalign the pressure adjustment knob.
(4) Check that the pressure is at the specified level to complete the procedure.