4.4 Cable specifications
Remote version “FS”
Coil cable: 2 x 0.75 mm
2
PVC cable with common screen *
Conductor resistance ≤ 37 Ω/km
Capacitance: core/core, screen grounded ≤ 120 pF/m
Permanent operating temperature: –20...+70 °C
Signal cable: 3 x 0.38 mm
2
PVC cable with common screen *
and separately screened cores
With EPD (Empty Pipe Detection) 4 x 0.38 mm
2
PVC cable
Conductor resistance ≤ 50 Ω/km
Capacitance: core/screen ≤ 420 pF/m
Permanent operating temperature: –20...+70 °C
* braided copper screen: ∅ ~7mm
Remote version “FL”
Coil cable: 2 x 0.75 mm
2
PVC cable with common screen *
Conductor resistance ≤ 37 Ω/km
Capacitance: core/core, screen grounded ≤ 120 pF/m
Permanent operating temperature: –20...+70 °C
Signal cable: 5 x 0.5 mm
2
PVC cable with common screen *
Conductor resistance ≤ 37 Ω/km
Capacitance: core/core, screen grounded ≤ 120 pF/m
Permanent operating temperature: –20...+70 °C
* braided copper screen (coil cable ∅ ~ 7 mm; signal cable ∅ ~ 9 mm)
Operation in areas with severe electrical interference
The Promag 33 measuring system fulfils all general safety requirements according
to EN 61010 and electromagnetic compatibility (EMC) according to EN 50081 Part 1
and 2 / EN 50082 Part 1 and 2 when installed in accordance with the NAMUR
recommendations.
Note!
• Remote version:
To comply with the certificate of conformity, the signal and coil cables between the
sensor and transmitter must always be screened and grounded at both ends.
Grounding is made using the ground terminals especially for this purpose on the
inside of the connection housings. Keep stripped and twisted cable shield section
to the ground terminal as short as possible!
• The cable must be resistant to an ambient temperature of max. +80 °C if the
Promag H sensor is operated at a process temperature of +150 °C.
Note!
Promag 33 4 Electrical Connection
Endress+Hauser 27
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