EB 2171 EN
27
Mounting and start-up
6.2.2 Installation with ther-
mowell
When a thermowell is used, a welding sock-
et with G 1 female thread must be used.
1. Seal the thermowell into the welding
socket.
2. Insert the sensor and tighten it with the
clamping screw.
For temperature regulators with safety tem-
perature limiter (TR/STL), install the sensor of
the limiter near the sensor of the regulator.
Note
6.2.1 Dynamic behavior of
Type 2430 Control Ther
-
mostat
The dynamics of the regulator are mainly de-
termined by the response of the sensor with
its characteristic time constant.
Table 5 shows the dynamic behavior of the
Type 2430 Control Thermostat measured in
water.
Table 5:
Dynamic behavior of Type 2430 Control Thermostat (adsorption principle)
Type 2430
Sensor Ø in
mm
Time constant [s]
Without thermowell
With thermowell
Adsorption principle
9.5
15
40
16
30
80
Air sensor
8
–
1)
1)
Thermowell not possible
6.2.3 Capillary tube
Carefully run the capillary tube without
bending or twisting it. Avoid locations with
considerable ambient temperature fluctua-
tions along the entire length of the tube.
Do not damage or shorten the capillary
tube. Roll up any capillary tube that is not
used. The smallest permissible bending radi-
us is 50 mm.
6.2.4 Insulation
Possible malfunction and damage due to ad-
verse weather conditions (temperature, hu-
midity).
−
Do not install the device outdoors or in
rooms prone to frost.
−
Protect the regulator against frost if it is
used to control freezing media.
−
Either heat the regulator or remove it from
the plant and completely drain the residual
medium after a plant shutdown.
Note
NOTICE
!
