DigiTrace T-M-20-S/EX Serie Mode D'emploi page 8

Install the capillary tube to give it as much protection as possible, and be
sure to observe the minimum bending radius of 10 mm. Avoid bending the
capillary tube repeatedly, because this can cause hairline cracks. Make the
electrical connection as shown in the figure.
Be particularly careful not to mix up the "heating connection" and the
"cooling connection". Prior to the startup it is necessary to verify the cor-
rectness of these connections once again. Then carry out a functional
check, and be absolutely sure to record it.
limiter
Bulb positioning:
Controller
Limiter
Non observance of the stated figures or interchanging of the con-
tacts is dangerous!
In case the starting current of self limiting heating cables is exceeding
the ratings of the equipment, external relays have to be used.
If the capillary tube is exposed to the same temperature as the sensor, dif-
ferences between the desired and actual temperatures will result. When the
medium inside the capillary tube heats up, it acts as an additional tempera-
8
controller
10 mm insulation
material for
artificial hot spot at
limiter bulb
Bulb
Heating element
Insulation material