Product Info

DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFTDRAFT DRAFT DRAFT
Micropilot FMR51, FMR52
Endress+Hauser V. 10, Rev. 3, 1-10-2019 31
Supply voltage
An external power supply is required.
Various supply units can be ordered from Endress+Hauser: see "Accessories" section→  115
2-wire, 4-20mA HART, passive
"Power Supply,
Output"
1)
"Approval"
2)
Terminal voltage U at
the device
Maximum load R, depending on the supply voltage U
0
at the supply unit
A: 2-wire; 4-20mA
HART
• Non-Ex
• Ex nA
• Ex ic
• CSA GP
10.4 to 35 V
3) 4) 5)
A0017140
Ex ia / IS 10.4 to 30 V
3) 4) 5)
• Ex d(ia) / XP
• Ex ic(ia)
• Ex nA(ia)
• Ex ta / DIP
13 to 35 V
5) 6)
A0034771
Ex ia + Ex d(ia) / IS + XP 13 to 30 V
5) 6)
1) Feature 020 of the product structure
2) Feature 010 of the product structure
3) For ambient temperatures T
a
≤ -20 °C (-4 °F) a minimum voltage of 15 V is required for the sartup of the device at the minimum error current (3,6
mA). The startup current can be parametrized. If the device is operated with a fixed current I ≥ 5,5 mA (HART multidrop mode), a voltage of U ≥
10,4 V is sufficient throughout the entire range of ambient temperatures.
4) In the current simulation mode a voltage U ≥ 12.5 V is required.
5) If the Bluetooth modem is used, the minimum supply voltage increases by 3 V.
6) For ambient temperatures T
a
≤ -20 °C (-4 °F) a minimum voltage of 16 V is required for the startup of the device at the minimum error current
(3.6 mA).
"Power Supply,
Output"
1)
"Approval"
2)
Terminal voltage
U at the device
Maximum load R, depending on the supply voltage U
0
at the supply unit
B: 2-wire; 4-20 mA
HART, switch output
• Non-Ex
• Ex nA
• Ex nA(ia)
• Ex ic
• Ex ic(ia)
• Ex d(ia) / XP
• Ex ta / DIP
• CSA GP
13 to 35 V
3) 4)
A0034771
• Ex ia / IS
• Ex ia + Ex d(ia) / IS + XP
13 to 30 V
3) 4)
1) Feature 020 of the product structure
2) Feature 010 of the product structure
3) For ambient temperatures T
a
≤ -30 °C (-22 °F) a minimum voltage of 16 V is required for the startup of the device at the minimum error current
(3.6 mA).
4) If the Bluetooth modem is used, the minimum supply voltage increases by 3 V.