TECHNICAL DESCRIPTION
ULTRAFLOW® 54 DN150-300
Kamstrup A/S
·
Technical description
·
5512-876_M1_GB_12.2020
27
Cable length
ULTRAFLOW
®
54
DN150-300 output module
2-wire connection
3-wire connection
Y=1
N/A
< 10 m
Y=2
< 100 m *)
< 10 m
Y=3
N/A
< 10 m
*) MULTICAL
®
602 must have sensor connection type D and external 24 VDC supply.
MULTICAL
®
603 must have sensor connection type G and external 24 VDC supply.
MULTICAL
®
801 features 12 VDC auxiliary supply.
MULTICAL
®
803 features auxiliary supply via PCB 66-99-045.
MULTICAL
®
602/603/801/803
Table 11. Maximum allowable cable length depends on the output module in ULTRAFLOW® 54
DN150-300 and how the MULTICAL® calculator is connected.
If long signal cables are used, installation requires careful consideration. Due to EMC there must be a distance of min. 25
cm between signal cables and all other cables. Recommended cable cross section for the signal cable is 2 x 0.5 mm².
Electrical connection of Cable Extender Box
The Cable Extender Box includes transient transorb diodes, making it possible to extend the cable between ULTRAFLOW®
and MULTICAL® with up to 30 m in total, while the cable length without the Cable Extender Box can be maximum up to
10 m.
Mount Cable Extender Box to the wall or the like close to ULTRAFLOW®. Connect the 3 wires in the cable from
ULTRAFLOW® to one of the two terminals in Cable Extender Box. You can select any of the terminals. Use a 3-wire
extension cable with a length of up to 27.5 m with the same wire diameter and of the same quality as the cable from
ULTRAFLOW®, and connect the 3 wires to the other terminal in Cable Extender Box. Connect the opposite end of the
extension cable to the terminal (V1 or V2) in MULTICAL®. Connect the cables according to the following combination: 10:
Yellow, 9: Red and 11: Blue. This colour combination applies to both Cable Extender Box and MULTICAL®. Perform a
function check, and complete by sealing Cable Extender Box with the included void labels or the seal labels of the utility.
Figure 21. Electrical connection of ULTRAFLOW® 54 DN150-300 with output module Y=1
galvanically coupled to MULTICAL® via Cable Extender Box.
The example illustrates a default 2.5 m cable from ULTRAFLOW® to Cable Extender Box.
In this case, the cable length between Cable Extender Box and MULTICAL® can be up to max 27.5 m
