11
2. Electrical connection
2.1 Connection to calculator
Signal cable length:
ULTRAFLOW® 54
DN150-250 output module
MULTICAL® 601/602/801
2-wire connection
3-wire connection
Y=1
N/A
<
10 m
Y=2
< 100 m *)
<
25 m
Y=3
N/A
<
25 m
*) MULTICAL® 601/602 must have sensor connection type D and external 24 VDC supply.
2.1.1 ULTRAFLOW® 54 and MULTICAL®, galvanically coupled
If ULTRAFLOW® 54 and MULTICAL® are connected via output module (Y=1),
ULTRAFLOW® 54 is galvanically coupled with the MULTICAL® calculator and is
powered by the calculator via the three-wire signal cable (cable length up to 10 m).
Note:
It is not permitted to mount a supply module or battery in ULTRAFLOW® 54.
ULTRAFLOW® 54
®
MULTICAL®
11
®
11
GND
(Blue)
9
®
9
+3.6 V
(Red)
10
®
10
(Yellow)
Table 1
2.1.2 ULTRAFLOW® 54 and MULTICAL®, galvanically separated
If ULTRAFLOW® 54 and MULTICAL® are connected via output module (Y=2 or 3)
ULTRAFLOW® 54 is galvanically separated from MULTICAL®.
Note:
Flow info cannot be read.
