Endress+Hauser HART Levelflex FMP53 Operating Instructions Manual page 18

Electrical connection
6.1.3 Supply voltage
2-wire, 4-20mA HART, passive
2-wire; 4-20mA HART
2
"Approval" Terminal voltage U at
)
device
• Non- 11.5 to 35 V
hazardou
s
• Ex nA
• Ex ic
• CSA GP
Ex ia / IS 11.5 to 30 V
• Ex d / XP 13.5 to 30 V
• Ex ic[ia]
• Ex tD /
DIP
1) Feature 020 of the product structure: option A
2) Feature 010 in the product structure
3) At ambient temperatures T
minimum failure current (3.6 mA). At ambient temperatures T
start the device with the minimum failure current (3.6 mA). The start-up current can be configured. If the device
is operated with a fixed current I ≥ 4.5 mA (HART Multidrop mode), a voltage U ≥ 11.5 V suffices in the entire
ambient temperature range.
4) If the Bluetooth module is used, the minimum supply voltage increases by 2 V.
5) At ambient temperatures T
minimum failure current (3.6 mA).
18
1)
Maximum load R, depending on the supply voltage U
supply unit
3) 4)
R [ ]
W
500
4)
0
10
4) 5)
R [ ] Ω
500
0
10
≤ -30 °C, a terminal voltage U ≥ 14 V is required to start the device with the
a
≤ -30 °C, a terminal voltage U ≥ 16 V is required to start the device with the
a
20
11.5 22.5
20
13.5 24.5
> 60 °C, a terminal voltage U ≥ 12 V is required to
a
Levelflex FMP53 HART
of the power
0
U 0 [V]
30 35
A0035511
U 0 [V]
30
A0034969
Endress+Hauser