User Manual

Output variable
Output signal 4 ... 20 mA/HART
Resolution 1.6 µA
Fault signal current output unchanged, 20.5 mA,
22 mA, < 3.6 mA (adjustable)
Current limitation 22 mA
Load see load diagram in Power supply
Integration time (63% of the input
variable)
0 ... 999 s, adjustable
Rise time 150 ms (ti: 0 s, 0 ... 100 %)
Fulfilled Namur recommendation NE 43
Input variable
Parameter distance between process fitting and
product surface
Min. distance from antenna end 400 mm (15
.7 in)
max. measuring range 60 m (197 ft), optionally 70 m (230 ft)
Accuracy (similar to DIN EN 60770-1)
Reference conditions acc. to DIN EN 61298-1
- temperature 18 ... 30°C (64 ... 86°F)
- relative humidity 45 ... 75 %
- pressure 860 ... 1060 mbar (86 ... 106 kPaor12.5 ...
15.4 psi)
Characteristics curve deviation and measurement characteristics
2)
Average temperature coefficient of
the zero signal (temperature error)
0.06 %/10 K
Resolution, general max. 1 mm
Frequency K-band
Interval > typ. 4 s
Adjustment time
3)
2)
Relating to the nominal range, incl. hysteresis and repeatability,
determined acc. to the limit point method.
3)
Time to output the correct level (with max. 10 % deviation) after a
sudden level change.
VEGAPULS 68 - 4 ... 20 mA/HART 53
Supplement
29261-EN-050202