Burkert 8139 Manuel d'installation rapide - Page 17
Parcourez en ligne ou téléchargez le pdf Manuel d'installation rapide pour {nom_de_la_catégorie} Burkert 8139. Burkert 8139 20 pages. Level transmitter
Imprimer la page6
Supplement
6.1
Technical data
Note for approved instruments
The technical data in the respective safety instructions are valid for approved instruments (e.g. with
Ex approval). These data can differ from the data listed herein, for example regarding the process
conditions or the voltage supply.
Electromechanical data - version IP 66/IP 67
Cable gland, blind plug
Wire cross-section (spring-loaded terminals)
Ʋ Massive wire, stranded wire
Ʋ Stranded wire with end sleeve
Voltage supply
Operating voltage U
B
Operating voltage U
B
switched on
Reverse voltage protection
Permissible residual ripple
Ʋ for 12 V < U
< 18 V
B
Ʋ for 18 V < U
< 35 V
B
Load resistor
Ʋ Calculation
Ʋ Example - U
= 24 V DC
B
LEVEL TRANSMITTER 8139 • 4 ... 20 mA/HART - two-wire
with lighting
M20 x 1.5 (cable ø 5 ... 9 mm)
0.2 ... 2.5 mm² (AWG 24 ... 14)
0.2 ... 1.5 mm² (AWG 24 ... 16)
12 ... 35 V DC
18 ... 35 V DC
Integrated
≤ 0.7 V
(16 ... 400 Hz)
eff
≤ 1 V
(16 ... 400 Hz)
eff
(U
- U
)/0.022 A
B
min
(24 V - 12 V)/0.022 A = 545 Ω
6 Supplement
17