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1. APPLICATION
The electric actuators
MODACT MOPED are designed for shifting control elements by a reversible rotary motion
(e.g. slide valve and other elements) for which they are suitable with their properties. Typical example of using is remote
two-position or multi-position control of elements where tight closure in end positions is required.
The electric actuators are also suitable for automatic regulation in the regime S4 - see Working regime.
2. OPERATING CONDITIONS, OPERATING POSITIONS
Operating conditions
The actuators
MODACT MOPED are resistant against influence of operating conditions and external effects of classes
AC1, AD7,AE6, AF2, AG2, AH2, AK2, AL2, AM-2-2, AN2, AP3, BA4 and BC3 according to ČSN 33 2000-5-51 ed. 3.
When the actuator is installed on a free area it is recommended to fit it with a light shelter against direct impact of
atmospheric effects. The shelter should overlap the actuator contour by at least 10 cm at the height of 20 – 30 cm.
When actuators are to be installed in the working environment with temperature below -10 °C and in the environment
with relative humidity above 80 %, it is always necessary to use an anti-condensation heater fitted to all actuators.
The electric actuators can be installed in areas with non-flammable and non-conductive dust, provided that this does not
adversely influence their function. Here, it is necessary to strictly observe ČSN 34 3205. It is recommended to remove dust
as soon as its layer is about 1 mm thick.
Notes:
Theareaunderasheltermeanstheonewherefallingofatmosphericprecipitationsunderandangleupto60°fromthe
verticalisprevented.
Theelectricactuatormustbeinstalledinaplacewherecoolingairhasafreeaccess.Minimumdistancefromawallforaccess
ofairis40mm.Therefore,theareawheretheelectricactuatorisinstalledmustbesufficientlylarge,cleanandventilated.
Surrounding temperature
Operating temperature for the
MODACT MOPED 52 039 is from -25 °C to +60 °C.
Classes of external influences
– as extracted from ČSN Standard 33 2000-5-51 ed. 3.
Class:
1) AC1
– above-sea level ≤ 2000 m
2) AD7
– shallow immersion, possible sporadic partial or full coverage
3) AE6
– strong dust formation
4) AF2
– occurrence of corrosive or polluting agents is atmospheric; presence of corrosive pollutants is significant
CONTENS
1. Application
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2. Operating conditions; Operating position
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3. Working regime; Service life of actuators
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4. Technical parameters
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5. Actuator outfit
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6. Electric parameters
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7. Electronic outfit
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Table – basic parameters
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Dimensional sketch of electric actuators MODACT MOPED
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33–34
8. Packing and storing
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9. Checking of the instrument function and its location
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10. Attachment to a valve
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11. Adjustment of the actuator with a valve
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12. Operation and maintenance
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13. Failures and their removal
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List of spare parts
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