PROline Promag 10 3 Installation
Endress+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 µS/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 [µS/cm]
Esc
E
-
+
200
100
50 100 200
[m]
[ S/cm]m
L
max
L
max
50
F06-10xxxxxx-05-xx-xx-xx-001
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