Operating Conditions: Environment; Ambient Temperature Range; Ambient Temperature Limits - Endress+Hauser Levelflex M FMP41C Technical Information

Levelflex M FMP41C, FMP45

Ambient temperature range

Ambient temperature limits

T
1
T
2
Permitted ambient temperature
T
1
T
2
Tank insulation
Endress+Hauser

Operating conditions: Environment

Ambient temperature for the electronic: -40 to +176°F (-40 to +80°C)
The functionality of the LCD display may be limited for temperatures T
A weather protection cover should be used for outdoor operation if the instrument is exposed to direct sunlight.
FMP41C
If the temperature (T ) at the process connection is above 176°F (80°C), the permitted ambient temperature
2
(T ) decreases as per the following diagram (temperature derating):
1
Maximum ambient temperature
T °F
1
(°C)
176 (80)
140 (60)
104 (40)
32 (0)
-40 (-40)
-40 32
(-40) (0)
FMP45 (HT 752°F / 400°C)
If the temperature (T ) at the process connection is below > -40°F (-40°C) or above > +176°F (80°C), the
2
permitted ambient temperature (T
T °F (°C)
1
176 (80)
104 (40)
32 (0)
-16 (-27)
-27 (-33)
-40 (-40)
-76 (-60)
-418 -328 -148
(-250) (-200) (-100)
176 212
(80) (100)
Maximum process connection temperature
) is limited as shown in the following diagram (temperature derating):
1
-40 32 176 392
(-40) (0) (80) (200)
Permitted process connection temperature
<-4°F (-20°C) and T >+140°F (60°C).
a a
176°F (80°C)
with remote housing
131°F (55°C)
with compact housing
F12, T12
104°F (40°C)
with compact housing
F23
T °F
2
(°C)
302 392
(150) (200)
L00-FMP41xxx-05-00-00-en-001
176°F (80°C) with
remote housing
151°F (66°C) with
compact housing
F12, T12
129°F (54°C) with
compact F23 housing
572 752
(300) (400)
L00-FMP45xxx-05-00-00-en-002
T °F
2
(°C)
25