Connection Using A Cable Conduit; Connection With Ip 68 Rating - Abb Processmaster Water Few620 Manual

4.5.3 Connection using a cable conduit

Figure 26 Installation set for cable conduit
NOTICE
Condensate formation in terminal box
If the flowmeter sensor is connected to cable conduits,
there is a possibility that humidity may get into the
terminal box because of condensate formation in the cable
conduit. Ensure that the cable entry points on the terminal
box are sealed.
An installation set for sealing the cable conduit is available via
order number 3KXF081300L0001.
IP rating
IP66/67 in accordance with EN 60529
IP 68 in accordance with EN 60529 (for remote mount design only)
Test conditions for IP68 to EN60529:
Continous submergence for 14 days (2 weeks) at 7 m (23 ft)
depth
Temperature data
Storage temperature range
-40 to 70°C (-40 to 158 °F)
The temperature range offered by the device is dependent on
a number of different factors.
These factors include the measuring medium temperature
T , the ambient temperature T
medium
P , the liner material and the approvals for the explosion
medium
protection.
Signal cable length and preamplifier
A preamplifier is required for cables ＞ 50 m (164 ft).
Maximum signal cable length between flowmeter sensor and transmitter
Preamplifier Signal cable length
Without Max. 50 m (164 ft)
With Max. 200 m (656 ft)
P RO CE S S M ASTER FEX62 0 E LE CTR O MAGNET IC F LOW MET ER | O I/ F EX620 - EN R EV. C
, the operating pressure
amb

4.5.4 Connection with IP 68 rating

①
Maximum flooding height 7m 2wks
Figure 27
For sensors with IP 68 rating, the maximum flooding
height is 7m 2wks. The supplied cable fulfills all submersion
requirements.
Test conditions for IP68 to EN60529:
Continous submergence for 14 days (2 weeks) at 7 m (23 ft)
depth
Connection
NOTICE
Potential adverse effect on IP 68 rating!
The IP 68 rating of the sensor may be adversely affected
as a result of damage to the signal cable.
The sheathing of the signal cable must not be damaged.
1
Use the supplied signal cable to connect the sensor and
the transmitter.
2
Connect the signal cable in the terminal box of the sensor.
3
Route the cable from the terminal box to above the
maximum flooding height of 7m.
4 Tighten the cable gland.
5
Carefully seal the terminal box. Make sure the gasket for
the cover is seated properly.
Note
As an option, the sensor can be ordered with the signal cable
already connected to the sensor and the terminal box already
potted.
15