
22
EB 8393 EN
Mounting and start-up
5.2.1 Supply air
The quality of the supply air must meet the
requirements of ISO 8573-1 concerning par
-
ticle size, oil content and pressure dew point
(see Technical data).
Î
Select supply pressure greater than the
maximum expected signal pressure
(max. 10 bar).
5.2.2 Exhaust port of
Type 3755-2
High sound pressure level! Risk of damage
to hearing.
If a noise-reducing element is not screwed
into the exhaust port, the volume booster
generates a loud noise on venting.
Wear hearing protection.
The exhaust port of Type 3755-2 can be at
-
tached to a pipe for further use of the ex-
haust air, such as purging of the actuator
spring chamber or discharged through the
pipe.
Î
Make sure sufficiently sized cross-sec
-
tions are chosen on sizing the piping
and screw fittings.
5.3 Start-up
High sound pressure level and high pressure.
Risk of damage to hearing.
Wear hearing protection.
Check that all components are mounted
properly before every start-up.
The Type 3755 Volume Booster is suitable for
actuators with an effective area ≥ 1000 cm²
or a travel volume ≥ 6 l.
On starting up the volume booster, keep the
following sequence:
1. Check the attachment or attach the vol-
ume booster properly between the posi-
tioner and actuator.
2. Apply the supply pressure. If possible,
slowly increase the pressure.
3. Adjust the bypass restriction according to
section
4. Adapt the control loop as described in
section
WARNING
!
WARNING
!
Note