VEGA VEGABAR 81 4 … 20 mA_HART - Quick setup guide - Manual (Page 17)

17
6 Supplement
VEGABAR 81 • 4 … 20 mA/HART
46299-EN-131125
6 Supplement
6.1 Technical data
Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar
Options of the cable entry
Ʋ Cable gland M20 x 1.5
Ʋ Cable diameter (options) 5 … 9 mm (0.20 … 0.35 in)
6 … 12 mm (0.24 … 0.47 in)
10 … 14 mm (0.39 … 0.55 in)
Ʋ Cable entry ½ NPT
Ʋ Blind plug M20 x 1.5; ½ NPT
Ʋ Closing cap M20 x 1.5; ½ NPT
Plug options
Ʋ Signal circuit Plug M12 x 1, according to ISO 4400, Harting HAN,
7/8" FF
Ʋ Indication circuit M12 x 1 plug
Wire cross-section (spring-loaded terminals)
Ʋ Massive wire, cord 0.2 … 2.5 mm² (AWG 24 … 14)
Ʋ Stranded wire with end sleeve 0.2 … 1.5 mm² (AWG 24 … 16)
Voltage supply
Operating voltage U
B
Ʋ Non-Ex instrument 9.6 … 35 V DC
Ʋ Ex-d instrument 9.6 … 35 V DC
Ʋ Ex-ia instrument 9.6 … 30 V DC
Ʋ Ex-d-ia instrument 15 … 35 V DC
Ʋ Ex-d-ia instrument with ship approval 15 … 35 V DC
Interpolation protection Integrated
Permissible residual ripple - Non-Ex, Ex-ia instrument
Ʋ for U
N
12 V DC (9.6 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)
Permissible residual ripple - Ex-d-ia instrument
Ʋ for U
N
24 V DC (18 V< U
B
< 35 V) ≤ 1 V
eff
(16 … 400 Hz)
Load resistor
Ʋ Calculation (U
B
- U
min
)/0.022 A
Ʋ Example - Non-Ex instrument with
U
B
= 24 V DC
(24 V - 9.6 V)/0.022 A = 655 Ω