Technical data Levelflex M FMP40 and FMP45
66
Influence of ambiente
temperature
The measurements are carried out in accordance with EN 61298-3:
• digital output (HART):
– average T
K
: 0.6 mm/10 K, max. ±3.5 mm over the entire temperature range -40 °C...+80 °C
2-wire
• Current output (additional error, in reference to the span of 16 mA):
– Zero point (4 mA)
average T
K
: 0.032 %/10 K, max. 0.35 % over the entire temperature range -40 °C...+80 °C
– Span (20 mA)
average T
K
: 0.05 %/10 K, max. 0.5 % over the entire temperature range -40 °C...+80 °C
4-wire
• Current output (additional error, in reference to the span of 16 mA):
– Zero point (4 mA)
average T
K
: 0.02 %/10 K, max. 0.29 % over the entire temperature range -40 °C...+80 °C
– Span (20 mA)
average T
K
: 0.06 %/10 K, max. 0.89 % over the entire temperature range -40 °C...+80 °C
11.1.4 Operating conditions: Environment
Ambient temperature range 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.
Ambient temperature limits FMP40
If temperatures above 80 °C are present at the process connection, the permitted ambient
temperature is reduced according to the following diagram (temperature derating):
L00-FMP40xxx-05-00-00-en-001
T [°C]
T [°C]
-40 0 50
-40
0
40
60
80
100
150
80
max. process connection temperature
max. ambient temperature
80 °C with separate
housing
75 °C with distance
sleeve
65 °C standard compact
F12/T12 housing
60 °C standard compact
F23 housing
To Next Page
Loading...
