Z31.0.XY.6C-09
Operating manual GTF 102-Ex... und GTF 101-Ex...
page 5
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2. Safety instructions
2.1 General
1.
Only install the GTF 101-Ex and GTF 102-Ex according to the given manufacturer’s instructions
and observe general standards and precepts.
2.
The temperature sensors with the type of protection “Increased Safety” (e), also as combination
with the type of protection “Encapsulation” (m) are allowed to be connected only to the resistance
sensors or thermocouples according to the relevant standard for this part. The nominal electrical
operating parameters may not exceed.
3.
Every temperature sensor with the type of protection „Increased Safety“ (e), also as combination
with the type of protection “Encapsulation” (m), has to be used with a series fuse, which is
suitable for the possible short-circuit current of 1500A. The series fuse can be installed into the
associated supply device or into the evaluation device.
4.
Only use cable with allowable diameter and associated sealing of the cable entry point.
The connection piece of the cable entry point must not be detached. Use blue dome nut of the
cable entry point for intrinsic safety circuits.
5.
Arrange circuit points according to the given connection diagram. The anode (positive pole) of
thermocouples is marked with a red label.
6.
The maximal ambient temperature which are specified in the EC-type-examination certificate do
not may be overranged in the entire area of the head. Influences of adjacent heat-sources are to
be considered.
7.
The self heating of the device’s tube has to be considered for the application, if loading the
measure-circuitry with more than 40mW.
The summation of the medium-temperature and the temperature of the sensor-tube from
the device’s self heating must always be lower than the ignition temperature of the
medium.
8.
The chemical resistance of the material has to be checked with the manufacturer, if using in
aggressive mediums.
9.
The probe line of the temperature sensor is to be installed in such a way which ensure sufficient
protection against mechanical damage. The bending especially of the long sensor tube has to be
prevent. Where appropriate fasten elements are to be mounted in suitably distances.
2.2 Limited ambient conditions
2.2.2
GTF 101-Ex- or GTF 102-Ex-types
temperature class
T6
-20°C
≤
Ta
≤
+60°C
2.2.3 GTF 101-Ex-...H- or GTF 102-Ex-...H-types
temperature class
T6
-20°C
≤
Ta
≤
+80°C
The GTF 101-Ex-...H- and GTF 102-Ex...H-types only are allowed to use in the protection class
„Intrinsic safety“ (i).
