15
Start
1
– Check the equipment is in good condition and use accessories that are the most
suitable for the actuator.
Make sure the torque management system and the hand wheel adapter are compatible with
the action about to be carried out.
2
– Insert the battery. Set the torque limiter to minimum.
3
– Check the rotational direction required for the valve or the hand wheel. Set the defined
rotation direction using the actuator’s left/right switch.
4
– Position the adaptor on the valve and set up the torque retention system. Consult the
instructions for adaptors.
5
– When starting up, always start up slowly in order to VERIFY the rotational direction, and to
put tension on the torque retention strap or chain.
6
- Check that the strap is set on the correct side compared to the desired rotation direction.
Torque reaction safety stop
In case you don’t use a torque reaction system or you don’t install it correctly, the actuator may rotate
suddenly and unexpectedly when started. If the rotation speed is high, this may be dangerous for the
user. In such a case, in order to protect users, the actuator will switch off, beep once, and the LED
light will flash continuously.
Release the On/Off switch
Install a correct torque reaction system
Press the On/Off switch again
Events occurring when actuating a valve
1.
If the actuator sounds a “beep” it means that the required torque is higher than the
torque limit set. Increase progressively the torque limit and try again.
Make sure that the torque limit set does not exceed the valve maximum allowed
torque.
2.
If the actuator is still unable to start even with a high (or maximum) torque limit, the
valve may be fully open or closed and the selected direction of rotation may not be
correct. In this case, repeat the procedure from the beginning by changing the
direction of rotation of the actuator.
Check again the direction of the torque retention.
3.
In case of resistance resulting from deposits on the stem, turn the valve in both
directions several times to ‘clean’ it. modec revolution counter (optional) enables you
to always know which position the valve is in.
4.
When the closed position is reached, make sure the torque does not exceed the valve
maximum allowed torque. Unless the procedure indicates otherwise, reopen the valve
with a few turns so that the accelerated fluid “cleans” any potential impurities from
the valve, and then close it again at the desired torque.
5.
When the maximum open position is reached, reclose with a few turns to avoid the
valve getting stuck in future.
