NivoRadar
®
Continuous level measurement
Series NR 7200
Technical information / Instruction manual
Technical data
page 11
Power consumption
Sensor current
Operating voltage
12 V DC
18 V DC
24 V DC
≤ 3.6 mA
< 45 mW
< 65 mW
< 90 mW
4 mA
< 50 mW
< 75 mW
< 100 mW
20 mA
< 245 mW
< 370 mW
< 485 mW
Output variable
Output signal
4 … 20 mA/HART
Range of the output signal
3.8 … 20.5 mA/HART (default setting)
Signal resolution
0.3 µA
Resolution, digital
1 mm (0.039 in)
Fault signal, current output (adjustable) ≤ 3.6 mA, ≥ 21 mA, last valid measured value
Max. output current
22 mA
Starting current
≤ 3.6 mA; ≤ 10 mA for 5 ms after switching on
Load
See load resistance under Power supply
Damping (63 % of the input variable),
adjustable
0 … 999 s
HART output values
1)
Ʋ
PV (Primary Value)
Lin. percent
Ʋ
SV (Secondary Value)
Distance
Ʋ
TV (Third Value)
Measurement reliability
Ʋ
QV (Fourth Value)
Electronics temperature
Fulfilled HART specification
7.0
Further information on Manufacturer ID,
Device ID, Device Revision
See website of FieldComm Group
Deviation (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ
Temperature
+18 … +30 °C (+64 … +86 °F)
Ʋ
Relative humidity
45 … 75 %
Ʋ
Air pressure
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Installation reference conditions
Ʋ
Distance to installations
> 200 mm (7.874 in)
Ʋ
Reflector
Flat plate reflector
Ʋ
False reflections
Biggest false signal, 20 dB smaller than the useful
signal
Deviation with liquids
≤ 2 mm (meas. distance > 0.25 m/0.8202 ft)
2 The values for SV, TV and QV can be assigned as required.
Содержание NivoRadar NR 7200 Series
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