User Manual

Figure 11: Communication module slot
7.1 Installing the communication module
The communication modules are connected via a non-
reactive plug to enable installation or conversion at any time.
Note
Only ever touch the module on its plastic holder.
Note
To connect an external cable, open the cable sleeves
so that they tightly enclose the cable.
Proceed as follows to install a communication module:
• If necessary, open the housing cover by loosening the
screw.
For M-Bus and pulse output modules, also note the following
points:
• • Run the cable from the outside through the
grommet.
• Strip and connect the cable.
• Secure the cable with the strain relief clamp.
• Connect the cables to the module’s terminals.
• Pull the cables out through the housing while
inserting the module.
• First attach the contact surfaces of the module to the
module slot.
• Gently push the module in.
Depending on the design of the housing, please also
observe the following points:
• For IP 68 versions of the housing, tighten the cable
gland.
• For the IP 54 version of the housing, make sure that
the grommet is seated correctly.
• Close the housing cover by tightening the screw (see
chapter Torque) and press the housing cover tightly
into place.
Note
You can find the technical details and data about the
communication modules in their documentation.
Note
No later than 60 seconds after installation, the meter
automatically detects the inserted modules and
is ready for communication or pulse output.
7.2 Terminal blocks
2-pin or 4-pin terminals are used to connect the external
lines to the modules.
• Stripping length 6 mm
• Connection capability
• rigid or flexible, 0.14 ... 1.5 mm²
• flexible with wire end ferrule with plastic sleeve,
0.25 ... 1.5 mm²
• flexible with wire end ferrule without plastic
sleeve, 0.25 ... 1.0 mm²
• Conductor sizes 26 ... 14 AWG
• Recommended screwdriver:
• 0.6 × 3.5 mm
• Tightening torque: 0.35 … 0.4 Nm
8 Non-detachable temperature sensors
Note
The cables must not be detached, shortened or
extended for factory-fitted, non-detachable
temperature sensors.
• Insert the temperature sensors into the immersion
sleeves, ball valves or T-pieces. The temperature
sensor must sit on the bottom of the thermowell.
• Seal the temperature sensors to prevent manipulation.
9 Detachable temperature sensor
Note
If detachable temperature sensors are used, they
must have their own calibration or certificate of
conformity.
Note
The maximum cable length of the temperature
sensors is 10 m. An extension is not permitted.
• If necessary, open the housing cover by loosening the
screw.
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A6V11905994 14.01.2020 14