Trimod Besta M Serie Instrucciones De Servicio página 8

Operation with higher control pressure (max. 10 bar)
Control pressure Output signal in bar
bar
2
4
6
8
10
Connection diagram
(Fig. 1) Filling
Control function
In the condition as supplied, the connections are at
the bottom. This means that, as the level increa-
ses, the output signal decreases proportionally
(see Fig. 1)
Float at top : 0,2 bar
Float at bottom : 1,0 bar
Control range
The normal control range is 30 mm,
i.e. approx. ±15 mm from the centre
line, measured in water (20°C). In
the centre position of the float, the
output signal is 0,6 bar. The control
range (see Fig. 3) can be increased
through an extension of the rod,
whereby the maximum installed
length, the float deflection and the
minimum density will change.
Special conditions for safe use Temperature application ranges
Type series
Housing material
Operating temperature T
Ambient temperature T
Type series
Housing material
Operating temperature T
Ambient temperature T
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Control pressure
min. bar
0,25 1,50
0,60 3,10
1,10 4,80
1,80 6,50
2,50 8,30
M... , MV...
Aluminium
(of medium) 1°C ... 250°C
0
1°C ... 80°C
A
FM... , FMV...
Aluminium
(of medium) 1°C ... 250°C
0
1°C ... 80°C
A
Principles of use
P / P The modules of the type series M...
max min
6,00 are simple proportional controllers,
without provision for adjustment of the
5,17
rate time or the reset time. In practice,
4,36
the low flow rate through the aperture
3,61
in the connection port "p" usually
3,32
necessitates the use of a pneumatic
booster valve.
(Fig. 2) Emptying
The opposite function (see Fig. 2) can be achieved
by rotating the complete controller housing with
respect to the flange unit. For this, it is simply
necessary to remove the two M6 screws and re-
assemble the housing with the
connections at the top.
Float at top
Float at bottom : 0,2 bar
2M... , 2MV...
Aluminium
untreated chromated (Alodine)
1°C ... 250°C
1°C ... 80°C
F2M... , F2MV...
Aluminium
untreated chromated (Alodine)
1°C ... 250°C
1°C ... 80°C
8 │ 20
: 1,0 bar
5M... , 5MV...
Stainless
1°C ... 400°C
1°C ... 80°C
F5M... , F5MV...
Stainless
1°C ... 400°C
1°C ... 80°C
LTB005X │ 2016.04
(Fig. 3)
steel
steel