Burkert 8138 Mise En Service page 55

Load
Damping (63 % of the input variable),
adjustable
HART output values according to HART 7.0
Ʋ PV (Primary Value)
Ʋ SV (Secondary Value)
Ʋ TV (Third Value)
Ʋ QV (Fourth Value)
Fulfilled HART specification
Further information on Manufacturer ID,
Device ID, Device Revision
Accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ Temperature
Ʋ Relative humidity
Ʋ Air pressure
Installation reference conditions
Ʋ Min. distance to internal installations
Ʋ Reflector
Ʋ False reflections
Deviation with liquids
10 mm (0.394 in)
2 mm (0.079 in)
0
- 2 mm (- 0.079 in)
- 10 mm (- 0.394 in)
1 2
Fig. 36: Deviation under reference conditions
1 Reference plane
2 Antenna edge
3 Recommended measuring range
Repeatability
Variables influencing measurement accuracy
Specifications apply to the digital measured value
Temperature drift - Digital output
Default values, can be assigned individually
1)
LEVEL TRANSMITTER 8138 • 4 ... 20 mA/HART - two-wire
see load diagram under Power supply
0 ... 999 s
1)
Lin. percent
Distance
Meas. reliability
Electronics temperature
7.0
See website of HART Communication Foundation
+18 ... +30 °C (+64 ... +86 °F)
45 ... 75 %
860 ... 1060 mbar/86 ... 106 kPa (12.5 ... 15.4 psig)
> 200 mm (7.874 in)
Flat plate reflector
Biggest false signal, 20 dB smaller than the useful signal
See following diagrams
0,5 m (1.6 ft)
≤ ±1 mm
±3 mm/10 K, max. 10 mm
11 Supplement
3
55