Endress+Hauser promag 30 Ex-Dokumentation Zu Den Betriebsanleitungen Seite 20

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8
Cable entries and cable specifications
Cable entries for the sensor cable connection:
Optional M20x1.5 or ½" NPT or G ½" threads for cable entries or PG 13.5 cable
glands.
Unused cable entries must be closed tightly.
FS version
Coil circuit cable:
2
2 x 0.75 mm PVC cable with common shield*
Conductor resistance ≤37 Ω/km
Capacitance core to core, grounded shield, ≤120 pF/m
Electrode circuit cable:
2
3 x 0.38 mm PVC cable with common shield* and individually shielded conductors
With empty pipe detection 4 x 0.38 mm
Conductor resistance ≤50 Ω/km
Capacitance core to core, grounded shield ≤420 pF/m
FL version
Coil circuit cable:
2
2 x 0.75 mm PVC cable with common shield*
Conductor resistance ≤37 Ω/km
Capacitance core to core, grounded shield, ≤120 pF/m
Electrode circuit cable:
2
5 x 0.5 mm PVC cable with common shield*
Conductor resistance ≤37 Ω/km
Capacitance core to core, grounded shield ≤120 pF/m
* braided copper shields
(coil circuit cable ∅ ~ 7 mm; signal circuit cable ∅ ~ 9 mm)
Maximum cable lengths:
FS version 10 m
FL version 200 m
• For cable, cable glands and the installation, the requirements of the applicable
standards of category 3G are to be fulfilled.
• The signal and coil cable between sensor and transmitter must be installed with
shielding (acc. to cable specs.) Grounding of the shield is via the ground terminals
in the sensor and transmitter housings.
• The signal and coil cables are to be run protected from mechanical damage,
corrosion or chemicals (e.g. solvents), and heat.
• Unused cable entries must be closed tightly.
2
PVC cable
Promag 30
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