Safety
42/68-273-EN LME620-AI/-AN
(Contrac)
9
1.11 Storage conditions
The actuators may be stored under aggressive, moist conditions for a short time. The
equipment is protected externally against corrosive influences. However, direct exposure to
rain, snow, etc., must be avoided.
The permissible storage and transport temperatures must be observed.
Actuators equipped with an anti-condensation heater are additionally protected by desiccant,
which is placed in the following locations where condensation may be a problem:
Position sensor:
in connection chamber
Electronic unit (separately supplied):
electrical connection area
The desiccant guarantees sufficient protection for approximately 150 days. It can be
regenerated at a temperature of 90°C (114°F) within 4 h.
Important
Remove the desiccant prior to commissioning the actuator or the electronic unit.
If you intend to store or transport the device for a longer time, we recommend that you wrap it in
plastic foil and add desiccant. Check that the desiccant is still effective on a regular basis.
During longer periods of downtime (> 6 months) with thrust rod extended, the chrome-plated
stem surface must be protected with a suitable anti-corrosive agent. Before recommissioning,
clean the thrust rod to avoid damage by the stripper and thrust rod gasket.
1.12 Installation safety information
• Depending on how they are set up, the actuators perform movements for positioning vanes
and valves, etc.
• Only qualified specialists who have been trained for these tasks are authorized to mount and
adjust the control actuator, and to make the electrical connection.
• When working on the actuator itself or the electronics always observe the locally valid
accident prevention regulations and the regulations concerning the construction of technical
installations.
• Make sure that no process forces are exerted on the control element.
• Do not use the motor or handwheel to lift the actuator.
• The load pick-up device on the actuator (eyebolt) must only be loaded in a vertical direction.
Only use the load pick-up device for lifting/lowering the actuator (without final control element
mounted).
Summary of Contents for LME620-AI
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