Endress+Hauser Proline t-mass A 150, Operating Instructions Manual, Page: 26 / 134

Electrical connection Proline t-mass A 150 HART
26 Hauser
To guarantee IP 66 and IP 67 degree of protection (Type 4X enclosure), carry out the
following steps after the electrical connection:
1. Check whether the housing seals of the connection and electronics compartment are
clean and inserted correctly. Dry, clean or replace the seals if necessary.
2. Tighten all housing screws and screw covers.
3. Firmly tighten the cable glands.
4. To ensure that moisture does not enter the cable entry, route the cable so that it
loops down before the cable entry ("water trap").
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5. Insert dummy plugs into unused cable entries.
7.4 Post-connection check
Are cables or the device undamaged (visual inspection)? 
Are the power supply and signal cables correctly connected? 
Does the supply voltage correspond to the specifications in the connection diagram? 
Do the cables comply with the requirements →  23? 
Do the cables have adequate strain relief? Are they routed securely? 
Is the cable route completely isolated? Without loops and cross-overs? 
Are all the screw terminals firmly tightened? 
Are all the cable glands installed, firmly tightened and leak-tight? Cable run with "water trap"
→  23 ?

Does the supply voltage match the specifications on the transmitter nameplate →  23? 
Is the terminal assignment correct →  23? 
If supply voltage is present, is the device ready for operation and do values appear on the display
module?
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Are all housing covers installed and firmly tightened? 