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.
•
Run the warm side temperature sensor cable from the
outside through the 4th grommet from the left and the cold
side temperature sensor of the through the 5th grommet
from the left.
•
Strip both cables as shown in the illustration.
© Gyr
Subject to change without prior notice
07.02.2020
6
