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Manual 5300, rev. 09 06/2020 – RTQS
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8.3 Manual Override
When requested, a manual override to move the actuator in case of lack of pneumatic pressure is supplied as an
integral part of the actuator itself.
For the single acting actuators Series RTQS two types of manual override are foreseen (see 8.3.1.1 and 8.3.1.2)
each with its own functioning logic.
Important
Position of the valve and position of the manual override in relation to the actuator
availability MUST be always known.
The following paragraphs 8.3.1.1 and 8.3.1.2 provide the information to enable the
operator to know the position of the manual override.
Position of the valve is provided by the local indicator described at paragraph 2.2
item 6).
8.3.1 Indication of position of the manual override
8.3.1.1 Manual Override type HP
For this type of Manual Override a specific Instruction Manual 2094 is available.
By means a selector lever it is possible to select LOCAL or REMOTE operation. (see Figure 9)
When lever of the local selector is in LOCAL position, identified by a specific label fixed on device, the manual
override HP is engaged, consequently the actuator cannot be operated by remote inhibiting its safety function.
To restore the automatic function the selector lever must be rotated 90° clockwise towards the position identified
by the label REMOTE.
Fig. 9 – HP device
LABEL
Summary of Contents for RTQ Series
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