AMTROBOX EEx ia
AMTRONIC EEx ia
17
AMTRONIC EEx ia
The pneumatic valve works with 50
m filtered air. Working pressure from 3.5 to 7 bar (50 to 102 psi).
Before connecting pneumatic supply, check the piping is clean, without any impurities, mainly when starting--up of a new installa-
tion.
As a measure of safety, the box is equipped with a filter in the input port in order to prevent the clogging of the distributor with
impurities. This filter can be cleaned if clogged (in this case, the air valve does not work): extract it by means of a wood screw and
clean it with solventor compressed air.
Direct connection on AMTRONIC.
Working pressure: 3.5 to 7 bar (50 to 102 psi).
Pressure connection: port marked ’’P’’.
Exhaust connection: port marked ’’E’’ fitted with a silencer or connectable to exhaust network.
Operating time adjustment (AMTRONIC EEx ia)
The operating time can be adjusted by means of two independent flow adjusters: one for opening and one for closure time.
Depending on the actuator type, the operating times can be adjusted as stated in the following table.
Double acting actuators
Type
Operating time
Type
minimum
maximum
ACTAIR 3
1 second
5 seconds
ACTAIR 6
1 second
7 seconds
ACTAIR 12
2 seconds
15 seconds
ACTAIR 25
3 seconds
20 seconds
ACTAIR 50
4 seconds
30 seconds
ACTAIR 100
6 seconds
40 seconds
ACTAIR 200
9 seconds
60 seconds
ACTAIR 400
15 seconds
120 seconds
ACTAIR 800
30 seconds
150 seconds
ACTAIR 1600
60 seconds
180 seconds
Spring return actuators
Type
Operating time
Type
minimum
maximum
DYNACTAIR 1.5
2 seconds
5 seconds
DYNACTAIR 3
2 seconds
7 seconds
DYNACTAIR 6
2 seconds
15 seconds
DYNACTAIR 12
4 seconds
20 seconds
DYNACTAIR 25
6 seconds
30 seconds
DYNACTAIR 50
10 seconds
40 seconds
DYNACTAIR 100
15 seconds
60 seconds
DYNACTAIR 200
40 seconds
120 seconds
DYNACTAIR 400
75 seconds
150 seconds
DYNACTAIR 800
150 seconds
180 seconds
For a shorter operating time than the min. one or for a longer operating time than the max. one, please consult us.
CAUTION!
The set screws of the exhaust flow rate adjustors are under line air pressure.
THEREFORE they must not be excessively unscrewed otherwise the screws may be expelled
by the pressure.
The top of the screw must not protrude from its hole by more than one millimetre.
Open/close position detection adjustment
The limit switches or detectors are factory adjusted.
It is not necessary to re--adjust before valve mounting on site.
Nevertheless, if you wish to re--adjust after a maintenance operation, proceed as follows:
-- Remove the cover of the box.
-- Put the disc in extreme position (opening or closing).
-- Unscrew the two metal screws one turn.
-- Adjust triggering of the required detector by turning the coloured screw corresponding to the colour of the cam to adjust.
-- Proceed in the same manner with the opposite switch.
-- Each cam is adjusted independently and the adjustment does not affect in any way the adjustment of the other cam.
-- When adjustments are completed, slightly tighten the two metal screws to prevent adjustments being changed.
-- Replace the cover of the box.
1 -- Loosen the metal screws
2 -- Adjust the cams
3 -- Tighten the metallic screws
