3 Types of totalizers
Manual TRZ 03· EN08 2018 September, 10th
38
3.4 Type
“D“ meter head
Type “D” meter head provides two mechanical drive shafts where additional
equipment, e.g. slip-on pulse transmitters, volume correctors, etc., can be
attached under official supervision.
1 Locking screw
Figure 6:
Type“D“ meter head
The totalizer has the following features:
•
LFpulse transmitter
- Standard:
reed-contact
- Alternatively:
inductive pulse transmitter
- Option:
one additional inductive pulse transmitter
•
HF pulse transmitters are optionally available,
pulse frequency approx. 100 Hz at Q
max
•
Additional mechanical equipment can be connected.
Notice
The drive shaft couplings of the meter head (type “D”) can be used for
connecting additional me-chanical or electronic measuring instruments. In
this case, the total driving torque must not exceed the approved value. If
no additional equipment is used, the drive shaft couplings are sealed.
The rotation rates of the drive shaft coupling depend on the meter size
(see table).