Correcting The Set Point Dial; Excess Temperature Safeguard Of The Thermostat - Samson EB 2111 Translation Of Original Instructions

Operation
Note
Higher set point temperatures can be adjust-
ed in increments as required. However, to
lower the set point temperature, proceed in
steps of 10 to 20 °C. When doing so, wait
for the process medium to cool down before
continuing. Watch the thermometer.
7.2 Correcting the set point
dial
There are many ways to combine the tem-
perature regulators with thermostats that
have varying proportional control action. As
a result, the temperature adjusted on the dial
often deviates from the actual temperature
(measured by a reference thermometer).
The temperature can be corrected by turning
the dial housing:
1. Undo the screw labeled "Korrektur" on
the back of the dial housing.
2. Turn the entire dial housing until the dial
shows the same temperature as the refer-
ence thermometer.
Viewed from the front with the dial housing
on top. A 360° turn corresponds to a set
point change of approx. 1.5 °C.
7-2
7.3 Excess temperature safe-
guard of the thermostat
Normal state
Fig. 7-1: Excess temperature indication
The temperature will exceed the adjusted lim-
it if the valve cannot close due to dirt parti-
cles lodged between the seat and plug or
due to a defective bellows. In this case, the
excess temperature safeguard responds. The
stem of the
set point adjuster
the housing indicates an excessively high
temperature at the sensor meaning a mal-
function exists (see Fig. 7-1).
The regulator must be repaired or serviced.
Stem of the set point
adjuster projecting out
of the housing indicates
an excessively high
temperature!
projecting out of
EB 2111/2121/2123 EN