Hi.
I have a Rosemount 2700 Micromotion flowmeter (Non-I.S model) which is in Zone 2 hazardous area connected directly to a non I.S Siemens analogue input card.
The transmitter has a separate 24vdc power along with an 'Active' 4-20mA output
Questions -
1. Do I need a barrier as its in Zone 2 ?
2. If so, what barrier would be on an 'Active' 4-20mA signal (not loop powered from PLC)
I have a Rosemount 2700 Micromotion flowmeter (Non-I.S model) which is in Zone 2 hazardous area connected directly to a non I.S Siemens analogue input card.
The transmitter has a separate 24vdc power along with an 'Active' 4-20mA output
Questions -
1. Do I need a barrier as its in Zone 2 ?
2. If so, what barrier would be on an 'Active' 4-20mA signal (not loop powered from PLC)