In this case,
all temperature inputs must be attached at one terminal
point
, because by using a TE 220/A all channels are operated with external
terminal temperature compensation.
The measurement value of the TM 240/Ais linearized (in °C values) and for-
warded to the CPU module.
At optimal installation of the terminal point a higher accuracy can be reached
as with internal compensation.
Information
To ensure highest exactness it is recommended
●
to install the terminal point in a calm air environment and away from power
electronics, heating and ventilation elements.
●
that the temperature measurement sensor is directly attached to the ter-
minal block or its immediate vicinity.
The thermocouple has to be attached via cable binders or adherents. Maxi-
mum length of data cable is 60m.
Fig.6-4:
Measurement with external compensation
1
... Cu-wires
2
... Terminal point
3
... Thermocouple wires
4
... Fixed with cable binders or attached via adher-
ents
5
... Temperature sensor
6
... Data cable
Functional description
TM 240/A, TE 220/A for KeStudio U3
© KEBA 2011
Project engineering manual V1.10
20
Содержание Kemro TM 240/A
Страница 4: ......
