Samson 2403, Mounting And Operating Instructions, Page: 13 / 32

EB 2183 EN 13
Design and principle of operation
3.1 Technical data
3.2 Process medium and scope
of application
Safety temperature monitoring of the energy
supply to heat generators or heat exchang-
ers by closing the valve.
For limit signals from
60 to 120 °C · Valves
G ½ to G 1 · DN 15 to 50 · Pressure rating
PN 16 or 25 · Max. 200 °C
The Type 2403 Safety Temperature Monitor
(STM) with a valve operates without auxilia-
ry energy and is designed for extended safe-
ty according to DIN EN 14597. The valve is
closed by a spring mechanism when the tem-
perature reaches the adjusted limit, when the
capillary tube breaks or when leakage oc-
curs in the sensor system. The devices are
automatically reset and put back into opera-
tion after the temperature has fallen below
the limit and the fault has been remedied.
Further details and technical data of the
valves and control thermostats are listed in
the following mounting and operating in-
structions:
− Mounting and operating instructions for
valves, e.g.
u
EB 2171,
u
EB 2172 and
and
u
EB 2173
− Mounting and operating instructions for
the control thermostats, e.g.
u
EB 2430
and
u
EB 2430-3
− Mounting and operating instructions for
the safety temperature limiter, e.g.
u
EB 2185
Dimensions and weights
Table 2 and Table 3 provide an overview of
the dimensions and weights. The lengths and
heights are shown in the dimensional draw-
ings (Fig. 3 to Fig. 5).
Typetesting
The safety temperature monitor is tested by
the German technical surveillance associa-
tion TÜV according to DIN EN 14597 under
the type designation 2750-5. The registra-
tion number is available on request.
Note