Vega VEGAPULS 64 - Page 74

74
11 Supplement
VEGAPULS 64 • Two-wire 4 … 20 mA/HART
51141-EN-210219
HART output values
5)
Ʋ PV (Primary Value) Lin. percent
Ʋ SV (Secondary Value) Distance
Ʋ TV (Third Value) Measurement reliability
Ʋ QV (Fourth Value) Electronics temperature
FullledHARTspecication 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 Min. distance to internal installations > 200 mm (7.874 in)
Ʋ Reector Flatplatereector
Ʋ Falsereections Biggest false signal, 20 dB smaller than the useful signal
Deviation with liquids
6)
≤1mm(meas.distance>0.25m/0.8202ft)
Non-repeatability
7)
≤1mm
Deviation with bulk solids The values depend to a great extent on the application.
Bindingspecicationsarethusnotpossible.
0,25 m (0.8202 ft)
10 mm (0.3937 in)
- 10 mm (- 0.3937 in)
1 mm (0.039 in)
- 1 mm (- 0.039 in)
0
1
2
3
Fig. 48: Deviation under reference conditions (example: thread with integrated horn antenna, applies accordingly
to all versions)
8)
1 Reference plane
2 Antenna edge
3 Recommended measuring range
5)
The values for SV, TV and QV can be assigned as required.
6)
 Incaseofdeviationsfromreferenceconditions,theosetduetoinstallationcanbeupto±4mm.Thisoset
can be compensated by the adjustment.
7)
Already included in the meas. deviation
8)
 Incaseofdeviationsfromreferenceconditions,theosetduetoinstallationcanbeupto±4mm.Thisoset
can be compensated by the adjustment.