Safety
42/68-165-EN RHD250 ... 4000 9
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1.10 Storage conditions
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The actuators may be stored under moist and aggressive condition for a short time. The
equipment is protected against external corrosive influences. However, direct exposure to rain,
snow, etc., must be avoided.
Actuators, equipped with an anti condensation heater, are additionally protected by desiccant,
which is placed in the following locations:.
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. Regularly check whether the desiccant is still active.
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1.11 Installation safety information
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• 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.
• The eyebolt at the top of the actuator may only be used to lift or lower the actuator vertically.
• Do not use the handwheel to lift or to lower the actuator..
• Do not use it if the actuator is mounted at the valve! Make sure that the final control element
is not exposed to process forces.
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1.12 Electrical installation safety information
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The electrical connection may only be performed by authorized specialist personnel according
to the electrical plans.
Comply with electrical connection information in the manual. Otherwise, the electrical protection
class can be affected.
The secure separation of contact-dangerous electrical circuits is only guaranteed when the
connected devices fulfill the requirements of the DIN EN 61140 (VDE 0140 Part 1) (basic
requirements for secure separation).
For secure separation, run the supply lines separated from contact-dangerous electrical circuits
or additionally insulate them.
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