D-FL 200 / Rev. 6
38
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Industrie Elektronik GmbH & Co KG
15. Technical Data
Measuring principle:
Continuous in-situ measurement according to the principle of acoustic transit time differential
Measuring range:
0-40 m/sec.
(0-131 ft/sec.)
Corresponds to:
0-5*10
6
m
3
/h (approx.
0-17,7*10
7
ft
3
/h)
Temperature: 0-250°C
(0-482°F)
Evaluation Unit:
Power supply:
115/230V (
±
10%), 50/60Hz
Permissible ambient temperature:
-20 to +50°C (-4 to +122
°
F)
Relay contacts:
“Error”, ”Maintenance”, ”
Limit value’’
All relay contacts are potential-free
Max. contact load given cos
ϕ
=1 :
230V/0.5A
Integration time of the measured value:
1 – 180 sec.
Output signal:
2 current outputs, 4-20mA
Maximum ohmic resistance:
500
Ω
Auxiliary power:
24V/1A for maximum of four sensors
Enclosure rating:
IP 65 / NEMA 4X
Transducers
Auxiliary power:
24V/DC
Permissible ambient temperature:
-20 to +60°C (-4
°
F to +140
°
F)
Flange:
special flange / tube 110x5
Material of the process parts:
1.4571 (standard)
Housing material of the evaluation unit :
Aluminium
Flue gas temperature:
up to 250°C (482
°
F), measurements
below the dew point are possible
Angle of installation:
30° - 60°
Min. length of the measuring path:
1.4m (4,6ft)
Max. length of the measuring path:
see following table
Maximum measuring path length, standard flue gas
Temperature
Sensor MK1 (50kHz)
Sensor MK2 (41kHz)
Sensor MK3 (30kHz)
up to 80°C / 176°F
5m / 197 in
8 m / 315 in
11 m / 433 in
up to 120°C / 248°F
4m / 157 in
6,5m / 256 in
8,0m / 315 in
up to 160°C / 320°F
3m / 118 in
5 m / 197 in
6 m / 236 in
more than
160°C /320°F
2m / 79 in
3,5m / 138 in
4,5m / 177 in
