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| BM 700 |
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For standard applications on storage tanks,in still wells and reference vessels,
high performance and low price.
Distance, level, volume measurement of liquids, pastes, slurries, in storage tanks,
still wells or reference vessels. |
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| Technical data |
| Operating mode/system structure |
FMCW radar in the X band (8.5-9.9 GHz) with digital signal processing;
compact device, modular design |
Input
Measured quantities
Primary quantity
Derived quantities
Measuring range
Min. tank height
Max. measuring range
Block distance
Rate of change in level
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distance
level, volume
0.5m(1.6ft)
20m(65.6ft)
min. 0.2 – 0.5 m (0.7 – 1.6 ft)
≤ 10 m/min (≤ 33 ft/min)
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Output
Ex-e current output HART
Failure signal |
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| Type |
avtive (current source); Ex-e |
| Current range |
4 – 20 mA (error: 22 mA) |
| Accuracy/linearity |
0.15 % (rel. 20 mA; 20°C/68°F) |
| Temperature drift |
≤ 100 ppm/K (typically 50 ppm/K) |
| Load |
≤ 350 Ω |
| Current output: error signal 22 mA, plain text in local display |
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Measuring accuracy
Error of measurement
Repeatability
Measured-value resolution
Ambient temperature effect |
min. ±1 cm (0.4”) or ±0.3%
≤ 0.5 x error of measurement
1 mm (0.04'')
no temperature effect on measured value (see output) |
Field service conditions
Installation conditions
Ambient conditions
Hazardous locations
Ambient temperature at signal converter |
avoid interference reflections and multiple reflections
Zone 0, 1, 2; IIC/IIB, T1 –T6
–20 … +55°C (–4 … +131°F); functional range: –40 … +70°C (–40 … +158°F) |
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