ZPA Pecky, a.s. Modact MOKP 100 Ex Series, Руководство по сборке и эксплуатации

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OPERATING CONDITIONS, OPERATING POSITION
The actuators
MODACT MOKP Ex
(MODACT MOKP EX Control) should withstand the effect of operating conditions
and external influences, classes AC1, AD7, AE6, AF2, AG2, AH2, AK2, AL2, AM-2-2, AN2, AP3, BA4, BC3 a BE3,
according to ČSN 33 2000-5-51 ed. 3.
Surrounding temperature
Operating temperature for the
MODACT MOKP Ex
is from -25 °C to +55 °C or from -50 °C to +55 °C.
Classes of external influences
Basic characteristics – as extracted from ČSN 33 2000-5-51 ed. 3.
1) AC1 – elevation above sea level ≤ 2000 m
2) AD7 – water occurrence – shallow dipping
3) AE6 – occurrence of foreign solid bodies – strong dustiness. Thick dust layers.
4) AF2 – occurrence of corrosive or polluting substances from atmosphere. Presence of corrosive polluting
substances is significant
5) AG2 – medium mechanical stress by impacts – common industrial processes
6) AH2 – medium mechanical stress by vibrations – common industrial processes
7) AK2 – serious risk of growth of vegetation and moulds
8) AL2 – serious danger of the occurance of animals (insects, birds, small animals)
9) AM-2-2 – normal level of the signal voltage. No additional requirements
10) AN2 – medium solar radiation with intensities > 500 W/m
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and ≤ 700 W/m
2
11) AP3 – medium seismic effects; acceleration > 300 Gal ≤ 600 Gal
12) BA4 – personal abilities. Instructed people.
13) BC3 – frequent contact with the earth potential. Persons coming frequently into contat with “live” parts or standing
on a conducting base.
14) BE3 – danger of explosion, production and storage of explosive substances
MODACT MOKP Ex
electric actuators in version for surrounding temperature from -50 °C do +55 °C must be
resistant against effect of process conditions characterized by surrounding temperature ranging between -50 °C
and +55 °C.
This version of actuators is fitted with three-phase motors and outfit without a transmitter or with the current transmitter
CPT1/AF.
The above mentioned actuators will be marked with letter F at the last place of the complementary type number,
i.e. 52 32x.xxxxF.
In all markings of non-explosiveness of the actuators type no. 52 32x.xxxxF, the marking of sub-group of the group II
of a non-explosive electric device according to the standard ČSN EN 60079-0 will be changed from IIC to IIB, i.e. to Ex d
IIB 80 °C
(T6) .
When placed on a free area, the actuator should be fitted with a light roofing against direct action of atmospheric
effects. The roof should overlap the contour of the actuator by at least 10 cm at the height 20 – 30 cm.
If the actuator is used at a location with an ambient temperature under -10 °C and/or relative humidity above 80 %, at
a sheltered location, or in the tropical atmosphere, the anti-condensation heater which has been built in all actuators,
should be always used.
The anti-condensation heater is a resistor of rating 10 W and resistance 6.8 k
Ω
. The feeding circuit of the
anti-condensation heater includes the thermal switch type 228 – 2563 (series 2455R) that opens at temperature 25 °C
±3 °C and closes again when temperature drops to 15 °C ±4 °C.
Note:
A space is considered sheltered if it prevents falling of atmospheric precipitations under angles up to 60° from the vertical.
Working position
The electric actuators
MODACT MOKP Ex
(MODACT MOKP Ex Control) can operate in any working position.
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