Ensuring The Degree Of Protection; Degree Of Protection; Post-Connection Check - Endress+Hauser Liquiphant FTL51B Operating Instructions Manual

Electrical connection
24
M12 plug
 19 M12 plug, pin assignment
1 Signal +
2 Not assigned
3 Signal –
4 Ground
For more details, see the "Accessories" section.
A
6.4

Ensuring the degree of protection

6.4.1

Degree of protection

In accordance with DIN EN 60529, NEMA 250
IP66/IP68 NEMA 4X/6P (1.83 m H
Types of housing:
• Single compartment; aluminum, coated; Ex d/XP
• Dual-compartment, L-shape; aluminum, 316L; Ex d/XP
Degree of protection for M12 plug
• When housing is closed and connecting cable is plugged in: IP66/67 NEMA Type 4X
• When housing is open or connecting cable is not plugged in: IP20, NEMA Type 1
NOTICE
M12 plug: Loss of IP protection class due to incorrect installation!
‣
The degree of protection only applies if the connecting cable used is plugged in and
screwed tight.
‣
The degree of protection only applies if the connecting cable used is specified according
to IP67 NEMA Type 4X.
Ordering information: Select the required option in the order code for "Electrical
connection". Exclusion criteria are taken into account automatically.
6.5

Post-connection check

 Are the device and cables free from damage (visual check)?
 Do the cables used meet the requirements?
 Do the mounted cables have adequate strain relief?
 Are the cable glands mounted and firmly tightened?
 Does the supply voltage match the information on the nameplate?
 No reverse polarity, is terminal assignment correct?
 Are all housing covers installed and firmly tightened?
 Optional: Are covers tightened with a securing screw?
4 3
1 2
O for 24 h)
2
Liquiphant FTL51B HART
A0011175
Endress+Hauser