User's Manual

DRAFT
Micropilot FMR53, FMR54
Endress+Hauser V. 1, Rev. 7, 26-10-2012 25
Supply voltage
An external power supply is required.
Various supply units can be ordered from Endress+Hauser: see "Accessories" section (® ä 86)
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)
R [ ]?
U
0
[V]
10
10.4 21.4
20 30 35
0
500
A0017140
Ex ia / IS 10.4 to 30 V
3)
• Ex d(ia) / XP
• Ex ic(ia)
• Ex nA(ia)
• Ex ta / DIP
12 to 35 V
4)
R [ ]W
U
0
[V]
10
12 23
20 30 35
0
500
A0019136
Ex ia + Ex d(ia) / IS + XP 12 to 30 V
4)
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 MIN error current (3,6 mA). The
startup current can be parametrized. If the device is operated with a fixed current I ³ 5,5 mA (HART multidrop mode), a voltage of U ³ 10,4 V is sufficient
throughout the entire range of ambient temperatures.
4)
For ambient temperatures T
a
£ -20 °C (-4 °F) a minimum voltage of 16 V is required for the satrtup of the device at the MIN 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
12 to 35 V
3)
R [ ]W
U
0
[V]
10
12 23
20 30 35
0
500
A0019136
• Ex ia / IS
• Ex ia + Ex d(ia) / IS + XP
12 to 30 V
3)
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 satrtup of the device at the MIN error current (3.6 mA).