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70
11 Supplement
VEGAPULS 64 • 4 … 20 mA/HART - two-wire
51141-EN-160815
2
1
3
Fig. 53: Data of the input variable
1 Reference plane
2 Measured variable, max. measuring range
3 Utilisable measuring range (depending on the antenna system)
Max. measuring range
30 m (98.43 ft)
Recommended measuring range (depending on the antenna system)
Ʋ Thread with integrated horn antenna
¾"
up to 10 m (32.81 ft)
Ʋ Thread with integrated horn antenna
1½"
up to 20 m (65.62 ft)
Ʋ Plastic horn antenna
up to 30 m (98.43 ft)
Ʋ Flange with encapsulated antenna
system DN 50, 2"
up to 25 m (82.02 ft)
Ʋ Flange with encapsulated antenna
system from DN 80, 3"
up to 30 m (98.43 ft)
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)
Failure 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