Version: TCM_0450_E80_M_EN_150209_E007
23
Installation
3.1.5.
Mechanical Installation of the Electronics
The wall mount TCE is to be mounted on the wall with 2 screws with 5 mm diameter, about 40 mm apart. For
exact dimensions refer to chapter 7.3.4.
WARNING!
For mounting the TCM in hazardous areas refer to the
“Installation Manual for Hazardous Areas”.
3.1.6.
Seals of the electronics housing and the connector
The custody transfer devices must be protected against unauthorized manipulation. In order to seal the covers
of the electronics housing, holes are provided in the housing body as well as in the safety bolts.
Fig. 10: Seals of the electronics housing and the connector
The connectors on both ends of the connection cable between the TCM sensor and the TCE electronics are
equipped with suitable clamps in order to be able to pull a sealing wire through these as well as through bores in
the area of the plug socket on the sensor or the electronics and to secure the plug connections against
unauthorized unplugging.
3.2.
Electrical Installation
Make sure that the TCM is properly mounted and the process input and output are connected before making the
electrical connections.
The TCM must be grounded.
The TCE requires a regulated DC power supply of 24 V ±20% or a mains voltage of 100 to 240 V AC,
depending on the version.
WARNING!
Never connect a 24 V version to the mains supply or vice versa!
The digital inputs and outputs are referred to GND and to the ground potential of the DC supply (= negative
pole). The AC supply terminals are electrically isolated from all inputs and outputs.
The ground potential GND is connected to protective ground via a 1
kΩ resistor.
