63
10 Supplement
LBR • Two-wire 4 … 20 mA/HART
62273-EN-200520
Range of the output signal
3.8 … 20.5 mA (default setting)
Signal resolution
0.3 µA
Fault signal, current output (adjustable) mA-value unchanged 20.5 mA, 22 mA, < 3.6 mA
Max. output current
22 mA
Starting current
≤ 3.6 mA; ≤ 10 mA for 5 ms after switching on
Load
see load diagram under Power supply
Damping (63 % of the input variable),
adjustable
0 … 999 s
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
Min. distance to internal installations > 200 mm (7.874 in)
Ʋ Reflector
Flat plate reflector, surface 1 x 1 m (3.281 x 3.281 ft)
Ʋ False reflections
Biggest false signal, 20 dB smaller than the useful signal
Deviation with liquids
≤ 5 mm (meas. distance > 1.0 m/3.280 ft)
Non-repeatability
3)
≤ 1 mm
Deviation with bulk solids
The values depend to a great extent on the application.
Binding specifications are thus not possible.
1,0 m (3.281 ft)
30 mm (1.181 in)
- 30 mm (- 1.181 in)
0
5 mm (0.197 in)
- 5 mm (- 0.197 in)
1
3
2
Fig. 36: Deviation under reference conditions
1 Reference plane
2 Recommended min. distance, specifications see below
3 Measuring range end
3)
Already included in the meas. deviation