VEGA VEGACAL 66 For connection to a signal conditioning instrument User Manual
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9 Supplement
VEGACAL 66 • For connection to a signal conditioning instrument
30321-EN-130917
1000
750
500
250
12
18
16
14
20
22
24
26
28
30
32
34
36
Ω
V
3
1
2
Fig. 15: Voltage diagram
1 Voltage limit EEx-ia instrument
2 Voltage limit non-Ex/Ex-d instrument
3 Operating voltage
Operating voltage with illuminated display and adjustment module
Ʋ Non-Ex instrument
20 … 36 V DC
Ʋ EEx-ia instrument
20 … 30 V DC
Ʋ EEx-d-ia instrument
20 … 36 V DC
Permissible residual ripple
Ʋ < 100 Hz
U
ss
< 1 V
Ʋ 100 Hz … 10 kHz
U
ss
< 10 mV
Load
see diagram
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)
2)
Ʋ Aluminium and stainless housing, in-
vestment casting (optionally available)
IP 66/IP 68 (1 bar)
Overvoltage category
III
Protection class
II
Approvals
Instruments with approvals can have different technical data depending on the version.
For that reason the associated approval documents of these instruments have to be carefully
noted. They are part of the delivery or can be do via "VEGA Tools"
and "serial number search" as well as via "Downloads" and "Approvals".
2)
A suitable cable is the prerequisite for maintaining the protection rating.