Micropilot M FMR 231 with HART/4...20 mA
Wiring
E Hauser
23
4.2
Connecting the measuring unit
Terminal compartment
Three housings are available:
•
Aluminium housing F12 with additionally sealed terminal compartment for:
– standard,
– EEx ia.
•
Aluminium housing T12 with separate terminal compartment for:
– standard,
– EEx e,
– EEx d,
– EEx ia (with overvoltage protection).
•
316L housing F23 for:
– standard,
– EEx ia.
The electronics and current output are galvanically isolated from the antenna circuit.
L00-FMR2xxxx-04-00-00-en-019
The instrument data are given on the nameplate together with important information
regarding the analog output and voltage supply. Housing orientation regarding the
wiring, (
→
Page 20).
Load HART
Minimum load for Hart communication: 250
Ω
Cable entry
Cable gland: M20x1.5
Cable entry: G ½ or ½ NPT
1
1
2
2
3
3
4
4
1 2
3 4
sealed terminal
compartment
F12 housing
F23 housing
T12 housing