User's Manual

DRAFT
Micropilot FMR50
46 V. 1, Rev. 6, 4-10-2012 Endress+Hauser
Environment
Ambient temperature range
Measuring device
–40 to +80 °C (–40 to +176 °F); –50 °C (–58 °F) with manufacturer declaration on
request
Local display
–20 to +70 °C (–4 to +158 °F), the readability of the display may be impaired at
temperatures outside the temperature range.
When operating the device in the open with strong sunlight:
• Mount the device in a shady position.
• Avoid direct sunlight, especially in warmer regions.
• Use a weather protection cover (see accessories).
Ambient temperature limits
The following diagrams take into account only function requirements. There may be further restrictions
for certified device versions. Please refere to the separate Safety Instructions (® ä 74).
With a temperature (T
p
) at the process connection the admissible ambient temperature (T
a
) is reduced
according to the following diagram (temperature derating):
Information concerning the derating tables
Option Meaning
A 2-wire; 4-20 mA HART
B 2-wire; 4-20 mA HART, switch output
C 2-wire; 4-20 mA HART, 4-20 mA
E 2-wire; FF, switch output
G 2-wire; PA, switch output
K 4-wire 90-253VAC; 4-20 mA HART
L 4-wire 10, 4-48VDC; 4-20 mA HART
FMR50
Housing: GT19 (Plastics PBT)
Temperature unit: °C (°F)
T
p
P5
P4
P3
P2
P1
T
a
A0019351
Power Supply; Output (Pos. 2 of
the product structure)
P1 P2 P3 P4 P5 P6
T
p
T
a
T
p
T
a
T
p
T
a
T
p
T
a
T
p
T
a
T
p
T
a
A -40
(-40)
80
(176)
80
(176)
80
(176)
80
(176)
80
(176)
80
(176)
-40
(-40)
-40
(-40)
-40
(-40)
- -
B
Switch output not used
-40
(-40)
76
(169)
76
(169)
76
(169)
80
(176)
75
(167)
80
(176)
-40
(-40)
-40
(-40)
-40
(-40)
- -
B
Switch output used
-40
(-40)
60
(140)
60
(140)
60
(140)
80
(176)
58
(136)
80
(176)
-40
(-40)
-40
(-40)
-40
(-40)
- -
C
Channel 2 not used
-40
(-40)
80
(176)
80
(176)
80
(176)
80
(176)
80
(176)
80
(176)
-40
(-40)
-40
(-40)
-40
(-40)
- -
C
Channel 2 used
-40
(-40)
74
(165)
74
(165)
74
(165)
80
(176)
73
(163)
80
(176)
-40
(-40)
-40
(-40)
-40
(-40)
- -
E, G
Switch output not used
-40
(-40)
79
(174)
79
(174)
79
(174)
80
(176)
79
(174)
80
(176)
-40
(-40)
-40
(-40)
-40
(-40)
- -
E, G
Switch output used
-40
(-40)
63
(145)
63
(145)
63
(145)
80
(176)
60
(140)
80
(176)
-40
(-40)
-40
(-40)
-40
(-40)
- -