ULTRAFLOW® 54 DN15-125
60
Kamstrup A/S · Technical description · 5512-2464_D1_GB_09.2021
Figure 44. ULTRAFLOW® 54 (Type 65-5-XXHX-XXX) connected to Pulse Transmitter with 230 VAC supply.
MULTICAL® 803 is connected to the Pulse Transmitter's output module (Y=2).
See paragraph
6.12.3
Calculator with two flow sensors
MULTICAL® 603 and 803 can be used in various installations with two ULTRAFLOW® flow sensors, e.g. for leak monitoring
or in open systems. When two ULTRAFLOW® sensors are direct connected to one MULTICAL®, an equipotential
connection (electric low impedance connection) between the two pipes should be carried out as a main rule to protect
the meter electronics against transients and potential differences. If the two pipes are installed in a heat exchanger, close
to the flow sensors, however, the heat exchanger will provide the necessary electric connection.
Figure 45. Direct electric connection of two ULTRAFLOW® flow sensors to MULTICAL® in an installation
with equipotential connection (electric low impedance connection) between the pipes*.
In installations where an equipotential connection cannot be carried out, the cable from one ULTRAFLOW® flow sensor
(typically V2) shall pass through a Pulse Transmitter with galvanic separation before the cable enters MULTICAL®.