EB 2043 EN
23
Operation
5.6.1 Gases and liquids
Î
Open the shut-off valves slowly prefera-
bly starting from the upstream pressure
side.
Î
Avoid pressure surges.
5.6.2 Steam
Î
Completely drain and dry steam lines to
prevent water hammering.
Î
Slowly allow the steam to enter the plant
to ensure that the pipes and valves warm
up evenly and to avoid excessive flow
velocities.
Î
Before the full capacity is reached, drain
off the start-up condensate.
Î
Make sure that the air contained in the
plant escapes as quickly as possible.
Î
Open the shut-off valves slowly prefera-
bly starting from the upstream pressure
side.
Î
Avoid pressure surges.
6 Operation
See Fig. 2.
6.1 Adjusting the limit
temperature
To adjust a different limit temperature in the
safety temperature monitor, proceed as fol-
lows:
1. If the optional leading screw (13) is used,
unscrew it upwards.
2. Use the key (10) to adjust the new limit
value according to the dial. Slowly turn
the key clockwise (
) to increase the
limit temperature and counterclockwise
(
) to reduce it.
3.
Lift off the key (10) and screw the lead
-
ing screw back into the housing, if appli-
cable.
When the safety temperature monitor is com-
bined with a Type 2231 to 2235 Control
Thermostat, make sure that there is a mini-
mum difference of approximately 15 K be
-
tween the adjusted limit temperature of the
safety temperature monitor and the set point
temperature of the control thermostat.
6.2 Sensor failure
Indication that the sensor is defective
In the event of a defective sensor (e.g. leak-
age in the sensor system), the green signal
pin (8.2) disappears into the housing. In the
normal state, the pin sticks out over the hous-
ing by approximately 1.5 cm.
Note
