Endress+Hauser Proline Promag W 800 - Page 29

Proline Promag W 800 Electrical connection
Endress+Hauser 29
Coil current cable
• 2 × 0.75 mm² PVC cable with common, braided copper shield (Ø  7 mm)
• Conductor resistance:  37 km
• Capacitance: core/core, shield grounded:  120 pF/m
• Operating temperature: –20 to +80 °C (–4 to 176 °F)
• Cable cross-section: max. 2.5 mm²
• Test voltage for cable insulation: 1433 V AC r.m.s 50/60 Hz or 2026 V DC
A0003194
Fig. 17: Cable cross-section
a Electrode cable
b Coil current cable
1Core
2 Core insulation
3 Core shield
4Core jacket
5 Core reinforcement
6 Cable shield
7 Outer jacket
7.1.4 Preparing the electrode and coil current cable
Terminate the electrode and coil current cables as shown in the figure below (Detail A).
Fit the fine-wire cores with wire end ferrules (Detail B).
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Caution!
Please note the following when terminating the cables:
• For electrode cable:
Make sure that the ferrules do not touch the wire shield on the sensor side.
Minimum distance = 1 mm (exception “GND” = green cable).
• For coil current cable:
Insulate one core of the three-core wire at the level of the core reinforcement. You only
require two cores for the connection.
1
2
3
4
5
6
7
ab