58
14 Supplement
VEGAPULS 31 • Two-wire 4 … 20 mA/HART
57820-EN-191014
Indication
Measured value and menu display
Ʋ Graphic-capable LC display, with
lighting
digital and quasianalogue indication
Ʋ Max. indicating range
-99999 … 99999
Adjustment
Adjustment elements
3 x keys for menu adjustment
PC/Notebook
PACTware/DTM
Smartphone/Tablet
VEGA Tools-App
Voltage supply
Operating voltage U
B
Ʋ at 4 mA
12 … 35 V DC
Ʋ at 20 mA
9 … 35 V DC
Operating voltage U
B
- illuminated display
and adjustment unit
15 … 35 V DC
Reverse voltage protection
Integrated
Permissible residual ripple
Ʋ for U
N
12 V DC (9 V < U
B
< 14 V)
≤ 0.7 V
eff
(16 … 400 Hz)
Ʋ for U
N
24 V DC (18 V < U
B
< 35 V)
≤ 1.0 V
eff
(16 … 400 Hz)
Load resistor
Ʋ Calculation
(U
B
- U
min
)/0.022 A
Ʋ Example - for U
B
= 24 V DC
(24 V - 12 V)/0.022 A = 545 Ω
Electrical protective measures
Potential separation
Electronics potential free up to 500 V AC
Protection rating
IP66/IP67 acc. to IEC 60529, Type 4X acc. to UL 50
Altitude above sea level
5000 m (16404 ft)
Protection class
III
Pollution degree
4