Endress+Hauser Levelflex M FMP41C Operating Instructions Manual page 78

Technical data
Influence of ambiente
temperature
Ambient temperature range
Ambient temperature limits
Storage temperature
Climate class
Vibration resistance
78
The measurements are carried out in accordance with EN 61298-3:
• digital output:
– FMP41C
average T : 0.6 mm/10 K, max. ±3.5 mm over the entire temperature range -40 °C...+80 °C
K
2-wire:
• Current output (additional error, in reference to the span of 16 mA):
• Zero point (4 mA)
average T : 0.032 %/10 K, max. 0.35 % over the entire temperature range -40 °C...+80 °C
K
• Span (20 mA)
average T : 0.05 %/10 K, max. 0.5 % over the entire temperature range -40 °C...+80 °C
K
4-wire:
• Current output (additional error, in reference to the span of 16 mA):
• Zero point (4 mA)
average T : 0.02 %/10 K, max. 0.29 % over the entire temperature range -40 °C...+80 °C
K
• Span (20 mA)
average T : 0.06 %/10 K, max. 0.89% over the entire temperature range -40 °C...+80 °C
K
10.1.4 Operating conditions: Environment
Ambient temperature for the transmitter: -40 °C ... +80 °C (-40 °F ... +176 °F)
The functionality of the LCD display may be limited for temperatures
Ta<-20 °C and Ta>+60 °C.
A weather protection cover should be used for outdoor operation if the instrument is exposed to
direct sunlight.
If temperatures above 80 °C are present at the process connection, the permitted ambient
temperature is reduced according to the following diagram (temperature derating):
T
1
T
2
-40 °C ... +80 °C (-40 °F ... +176°F)
DIN EN 60068-2-38 (test Z/AD)
DIN EN 60068-2-64 / IEC 68-2-64: 20...2000 Hz, 1 (m/s
Levelflex M FMP41C with HART/4...20 mA
max. ambient temperature
T [°C]
1
80
60
40
0
-40
-40 0
80 °C with separate
55 °C
40 °C compact:
80 100 150 200
max. process connection temperature
L00-FMP41xxx-05-00-00-en-001
2 2
) /Hz
Endress + Hauser
housing
compact:
F12 housing
T12 housing
F23 housing
[°C]
T
2