Endress+Hauser Proline Promass I 100 - Hardware Settings; Ensuring the Degree of Protection

Electrical connection Proline Promass I 100 Modbus RS485
32 Endress+Hauser
7.3 Hardware settings
7.3.1 Enabling the terminating resistor
To avoid incorrect communication transmission caused by impedance mismatch, connect
the Modbus RS485 cable correctly to the start and end of the bus segment.
If the transmitter is used in the non-hazardous area or Zone 2/Div. 2
2 - Not used
1 - Write protection
4 - Bus termination
3 - Not used
OFFON
26
27
A
B
220 W
A0017610
 13 Terminating resistor can be enabled via DIP switch on the main electronics module
If the transmitter is used in the intrinsically safe area
26
27
A
B
220 W
ON
1 2
A
A
A0017791
 14 Terminating resistor can be enabled via DIP switch in the Safety Barrier Promass 100
7.4 Ensuring the degree of protection
The measuring device fulfills all the requirements for the IP66/67 degree of protection,
Type 4X enclosure.