Proline Promass I 100 Modbus RS485 Electrical connection
Endress+Hauser 33
To guarantee IP66/67 degree of protection, Type 4X enclosure, carry out the following
steps after the electrical connection:
1. Check that the housing seals are clean and fitted 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").
A0013960
5. Insert dummy plugs into unused cable entries.
7.5 Post-connection check
Are cables or the device undamaged (visual inspection)?
Do the cables comply with the requirements ( 24)?
Do the cables have adequate strain relief?
Are all the cable glands installed, firmly tightened and leak-tight? Cable run with "water trap"
( 32) ?
Depending on the device version: are all the device plugs firmly tightened ( 30)?
• Does the supply voltage match the specifications on the transmitter nameplate ( 80)?
• For device version with Modbus RS485 intrinsically safe: does the supply voltage match the
specifications on the nameplate of the Safety Barrier Promass 100 ( 80)?
Is the terminal assignment or the pin assignment of the device plug ( 28) correct?
• If supply voltage is present, is the power LED on the electronics module of the transmitter lit
green ( 10)?
• For device version with Modbus RS485 intrinsically safe, if supply voltage is present, is the
power LED on the Safety Barrier Promass 100 lit ( 10)?
Depending on the device version, is the securing clamp or fixing screw firmly tightened?
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