Installation
Promag 50
20
Hauser
3.2.8
Length of connecting cable
In order to ensure measuring accuracy, comply with the following instructions when installing the
remote version:
• Fix cable run or lay in armored conduit. Cable movements can falsify the measuring signal
especially in the case of low fluid conductivities.
• Route the cable well clear of electrical machines and switching elements.
• Ensure potential equalization between sensor and transmitter, if necessary.
• The permitted connecting cable length L
max
is determined by the fluid conductivity (
A minimum conductivity of 20
μ
S/cm is required for measuring demineralized water. Most
liquids can be measured as of a minimum conductivity of 5
μ
S/cm.
• The maximum connecting cable length is 10 m (32.8 ft) when empty pipe detection
(EPD
73) is switched on.
A0010734
Fig. 16:
Permissible cable length for the remote version
Area shaded gray = permitted range
Lmax = connecting cable length in [m]
Fluid conductivity in [
μ
S/cm]
200
100
5
10
100
200
L
max
[m]
[m]
[µS/cm]
L
max
[ft]
200
600
0
400
Содержание Proline Promag 50
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