<6. Maintenance>
6-3
IM 21B03D01-01E
(4) Remove the silicon tube (a) from the pressure
sensor on the amplifier.
(5) Remove the four set screws (b) for fixing wires
on the amplifier and then disconnect the wires.
(6) Remove the four set screws (c) for fixing the
amplifier.
F0607.ai
(a)
(c)
(b)
(b)
(b)
(b)
(c)
(c)
(c)
Figure 6.7
Pressure Sensor and Amplifier Set
Screws
(7) Pull out the amplifier directly, taking care not to
bend the zero adjustment control.
(8) Remove the silicon tube left in the case.
Mounting the Amplifier
(1) Insert the accessory silicon tube into the body
cap firmly.
F0608.ai
Tube pin on case
Figure 6.8
Silicon Tube Case Cap
CAUTION
Be sure to use the accessory silicon tube that
comes with the amplifier for replacement.
Note that the tube size varies depending on
the amplifier to be used. Be sure to use the
proper tube to prevent air leakage and precision
deterioration.
(2) Adjust the angle so that the volume knob of
zero adjustment forms a right angle with the
amplifier.
F0609.ai
Volume Knob of zero point adjustment
Figure 6.9
Zero Adjustment Control
(3) Pass the silicon tube through an amplifier hole
and mount the amplifier directly so that the
sleeve of the pressure sensor leads into the
hole of the case.
NOTE
• Do not apply undue pressure to the pressure
sensor.
• Do not bend the zero adjustment volume
knob to prevent it from contacting the zero
adjustment set screw.
(4) Fasten the four set screws for fixing the
amplifier (see Figure 6.7).
(5) Connect the four wires in the order of yellow
(ACT+), white (ACT-), red (IN+) and black (IN-).
(6) Insert the silicon tube into the amplifier pressure
sensor firmly.
F0610.ai
Silicon tube
Pressure sensor
Figure 6.10 Pressure Sensor and Silicon Tube
(7) In a model allowing 4-20/10-50mA selection,
refer to 5.5 to set the socket switch as
necessary.
(8) Mount the amplifier cover.
三千控制阀网
www.cv3000.com
