Installation and Commissioning
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Manual TRZ 04 · EN04 · February, 1st 2017
33
The tamper contact switches when a magnet is held outside the meter head
close to the reed contacts.
2.5 Type “G-D” meter head
Figure 4: Type “G-D” meter head
Design and features like in the case of the type “G” meter head but additional with a
mechanical drive shaft in compliance with EN 12261 on the top side of the case. This
version is only possible with aluminum cap.
The direction of rotation of the drive shaft (with view on the drive shaft) is clockwise.
For dimensions and instructions for the connection see the description “Mechanical drive
shaft coupling”. Especially note the maximum permissible torques!
2.5.1
Permissible torques (type “G-D”)
Nominal dia. Sizes
Q
max
Q
min
[m
3
/h]
M
max
[Nmm]
