VEGA VEGAPULS 61 (≥ 2.0.0 - ≤ 3.8) 4 … 20 mA__HART two-wire - Manual (Page 62)

Voltage supply - Version with increased sensitivity
O perating voltage
-
N on-Ex instrument 15 … 36 V DC
-
EE
x-ia instrument 15 … 30 V DC
-
EE x-d-ia instrument 20 … 36 V DC
O perating voltage with lighted indicating and adjustment module
-
N on-Ex instrument 20 … 36 V DC
-
EE x-ia instrument 20 … 30 V DC
-
EE x-d-ia instrument 20 … 36 V DC
P ermissible residual ripple
-
< 100 H z U
ss
< 1 V
-
100 H z … 10 kHz U
ss
< 10 mV
L oad see diagram
1000
750
500
250
15 18 16 20 22 24 26 28 30 32 34 36
Ω
V
4
1
2
3
Fig. 42: Voltage supply for version with increased sensitivity
1 HART load
2 Voltage limit EEx-ia instrument
3 Voltage limit non-Ex/Ex-d instrument
4 Operating voltage
Electrical protective measures
P rotection, depending on housing version
-
H ousing plastic IP 66/IP 67
-
A luminium housing, stainless steel
housing - investment casting, stainless
steel housing - electro-polished
IP 66/IP 68 (0.2 bar) 10)
-
A
luminium and stainless housing, in-
vestment casting (optionally available)
IP 66/IP 68 (1 bar)
O vervoltage category III
10) A suitable cable is the prerequisite for maintaining the protection rating.
62 VEGAPULS 61 • 4 … 20 mA/HART two-wire
10 S upplement
28434
-EN
-100426