Electrical
connections
CI/TTF300-X1
TTF300
EN - 17
4.3
Connection for power supply cable/ sensor connecting cable
Notice - Potential damage to parts!
Connecting the power supply cable with the power switched on may result in a short circuit
and damage to the transmitter.
Always ensure the power is switched off before connecting the power supply cable.
Important (Note)
The type of sensor connecting cable must be appropriate for the sensor type and transmitter
configuration.
In the case of thermocouple sensors, make sure that the material of the sensor connecting
cable is appropriate for the type of thermocouple.
A00255
10
11
1
2
3
9
8
7
6
5
4
+
-
Fig. 6: Transmitter terminals with LCD indicator removed
1 … 6 Sensor connection
7 Ground
connection
8 DIP switch 1: on, hardware write
protection is enabled
DIP switch 2: no function
9 Plug for LCD indicator
10 … 11 Signal / supply voltage connection
Warning - General dangers!
The transmitter atmosphere may be explosive. Risk of explosion!
Make sure there is sufficient fresh-air ventilation.
1.
Tighten the lock screw under the housing cover.
2.
Release the housing cover by turning it counterclockwise.
3.
If present, carefully pull the LCD indicator to release it from its holder.
4.
Strip the cable jacket of the power supply cable / sensor connecting cable to a length of
140 mm (5.51 inches) (see also Chapter 4.1.1 Line length page 13).
5.
Guide the power supply cable / sensor connecting cable through the cable glands and into
the housing. Then tighten the cable glands.
6.
Strip the wires and attach wire end sleeves.
7.
Connect the wires as per the connection diagram.
8.
If there is one, carefully insert the LCD indicator in the previous / required position.
9.
Screw the housing cover back on.
10.
Loosen the lock screw until the housing cover is firmly in place.
