User's Manual

Micropilot FMR67
34 V. 1, Rev. 3, 11-04-2017 Endress+Hauser
Environment
Ambient temperature range
Measuring device –40 to +80 °C (–40 to +176 °F)
Local display –20 to +70 °C (–4 to +158 °F), the readability of the display may be impaired at
temperatures outside the temperature range.
Outdoor operation in strong sunlight:
•
Mount the device in the shade.
• Avoid direct sunlight, particularly in warm climatic regions.
• Use a weather protection cover (see accessories).
Ambient temperature limits
The following diagrams only consider functional aspects. Additional restrictions may apply for
certified device versions. See the separate Safety Instructions for more information
→  79.
In the event of temperature (T
p
) at the process connection, the permitted ambient temperature (T
a
)
is reduced as indicated in the following diagram (temperature derating) in the table header.
FMR67
Antenna
1)
GA:
Drip-off, PTFE DN50
P2
P1
P5
P4
P3
T
a
T
p
A0032024
Seal
2)
A3:
FKM Viton GLT, –40 to 80 °C (–40 to 176 °F)
Temperature specifications: °C (°F)
Housing type
3)
P1 P2 P3 P4 P5
T
p
T
a
T
p
T
a
T
p
T
a
T
p
T
a
T
p
T
a
B:
GT18 two-chamber
316L
–40
(–40)
76
(168.8)
76
(168.8)
76
(168.8)
80
(176)
75
(167)
80
(176)
–40
(–40)
–40
(–40)
–40
(–40)
A:
GT19 two-chamber
Plastic PBT
–40
(–40)
60
(140)
60
(140)
60
(140)
80
(176)
54
(129.2)
80
(176)
–40
(–40)
–40
(–40)
–40
(–40)
C:
GT20 two-chamber
Aluminum, coated
–40
(–40)
76
(168.8)
76
(168.8)
76
(168.8)
80
(176)
76
(168.8)
80
(176)
–40
(–40)
–40
(–40)
–40
(–40)
1) Feature 070 in the product structure
2)
Feature 090 in the product structure
3) Feature 040 in the product structure