Endress+Hauser Levelflex M FMP40 Operating Instructions Manual page 75

Levelflex M FMP40 with HART/4...20 mA
Influence of ambient
temperature
Ambient temperature range
Ambient temperature limits
Storage temperature
Climate class
Degree of protection
Vibration resistance
Endress+Hauser
The measurements are carried out in accordance with EN 61298-3:
• Digital output:
– Average T : 0.6 mm/10 K, max. ±3.5 mm over the entire temperature range -40 °C to +80 °C
K
2-wire:
• Current output (additional error, in relation 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 to +80 °C
K
– Span (20 mA)
Average T : 0.05 %/10 K, max. 0.5 % over the entire temperature range -40 °C to +80 °C
K
10.1.4 Operating conditions: environment
Ambient temperature at the electronics: -40 °C to +80 °C
The function of the LCD display is restricted at T
A weather protection cover should be used for outdoor operation if the device 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):
max. ambient temperature
T [°C]
80
60
40
0
-40
-40 0
-40 °C to +80 °C
DIN EN 60068-2-38 (test Z/AD)
• With closed housing tested according to:
– Housing F12/T12: IP68, NEMA6P (24 h at 1.83 m under water)
– Housing F23: IP69K in conjunction with the cable entries M20 G ½ and NPT ½
– IP66, NEMA4X
• With open housing: IP20, NEMA1 (also ingress protection of the display)
DIN EN 60068-2-64 / IEC 68-2-64: 20 to 2000 Hz, 1 (m/s
<-20 °C and T >+60 °C.
A A
100
50 80
max. process connection temperature
2 2
) /Hz
Technical data
80 °C with separate
housing
75 °C with distance
sleeve
65 °C standard compact
F12/T12 housing
60 °C standard compact
F23 housing
150 T [°C]
L00-FMP41xxx-05-00-00-en-001
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