PROline Promag 10
3 Installation
Hauser
21
3.2.8
Length of connecting cable
In order to ensure measuring accuracy, comply with the following instructions when
installing the remote version:
•
Secure the cable run or route the cable in a conduit. Movement of the cable can falsify
the measuring signal, particularly if the fluid conductivity is low.
•
Route the cable well clear of electrical machines and switching elements.
•
Ensure potential equalisation between sensor and transmitter, if necessary.
•
The permissible cable length Lmax depends on the fluid conductivity (Fig. 15). For all
fluids a minimum conductivity of 50
µ
S/cm is required.
•
When the Empty Pipe Detection function is switched on, the maximum connecting
cable length is 10 m.
Fig. 15:
Permissible cable length for the remote version
Grey shaded area = Permissible range
Lmax = Length of connecting cable in [m]
Fluid conductivity in [
µ
S/cm]
Esc
E
-
+
200
100
50
100
200
[m]
[ S/cm]
m
L
max
L
max
50
F
0
6
-1
0
x
x
x
x
xx-
05
-xx-
xx-
xx
-0
01
