VEGA VEGAPULS 66 (≥ 2.0.0 - ≥ 4.0.0) enamel 4 … 20 mA_HART - two-wire - Manual (Page 66)

66
11 Supplement
VEGAPULS 66 enamel • 4 … 20 mA/HART - two-wire
36527-EN-121011
Ʋ Ex-d-ia instrument with ship approval 15 … 36 V DC
Operating voltage with illuminated indicating and adjustment module
Ʋ Non-Ex instrument 16 … 36 V DC
Ʋ Ex-ia instrument 16 … 30 V DC
Ʋ Ex-d-ia instrument 20 … 36 V DC
Interpolation protection Integrated
Permissible residual ripple - Non-Ex, Ex-ia instrument
Ʋ for 9.6 V< U
N
< 14 V ≤ 0.7 V
eff
(16 … 400 Hz)
Ʋ for 18 V< U
N
< 36 V ≤ 1.0 V
eff
(16 … 400 Hz)
Permissible residual ripple - Ex-d-ia instrument
Ʋ for 18 V< U
N
< 36 V ≤ 1 V
eff
(16 … 400 Hz)
Load see diagram
1200
927
500
750
250
12 18 16 9,6 14 20 15,1 22 24 26 28 30 32 34 36
Ω
V
1
4
2
3
Fig. 49: Voltage diagram
1 HART load
2 Voltage limit Ex-ia instrument
3 Voltage limit non-Ex/Ex-d instrument
4 Operating voltage
Electrical protective measures
Protection, depending on housing version
Ʋ Plastic housing IP 66/IP 67
Ʋ Aluminium housing, stainless steel
housing - investment casting, stain-
less steel housing - electro-polished
IP 66/IP 68 (0.2 bar) 5)
Ʋ Aluminium and stainless housing, in-
vestment casting (optionally available)
IP 66/IP 68 (1 bar)
Overvoltage category III
Protection class III
Approvals
Instruments with approvals can have different technical data depending on the version.
5) The prerequisites for maintaining the protection rating are a suitable cable as well as correct mounting.