Electrical data – VEGA VEGABAR 44 HART User Manual
Page 7
VEGABAR 44 (HART
®
)
7
Product description
Electrical data
Adjustment ranges
Zero
adjustable from -20 … +95 % of nominal range
Span
adjustable from 3.3 … 120 % of nominal range
Supply and signal circuit
Supply voltage
12 … 36 V DC
Exd version
(pressure-tight encapsulation)
18 … 36 V DC
Permissible residual ripple
U
SS
≤
1 V
- at 500 Hz … 10 kHz
U
SS
≤
10 mV
Output signal
- range
3.8 … 20.5 mA
- resolution
6 µA
Current limiting
approx. 22 mA
Fault signal
22 mA (3.6 mA)
Integration time
0 … 10 s adjustable
Rise time
85 ms (ti = 0 sec; 0 – 63 %)
Connection cable
2-wire
Max. permissible load
dependent on the supply voltage
(see load diagram)
12
250
0
18
24
30
36
500
750
1000
Load R
Ltotal
in Ohm
Voltage of the external energy U
H
in Volts
1)
Use of a suitable seal for the cable in the PG is necessary for maintaining the housing protection. If the seal
used does not fit the cable, it should be replaced by a suitable one.
Display and adjustment circuit
For connection to
VEGADIS 10 and/or indicating module
Data transmission
digital
Connection cable
4-wire (standard cable)
Max. cable length
25 m
Connection
Cable entry
M20 x 1.5 (for cable-ø 5 … 10 mm)
Screw terminals
for conductor cross sections of up to 2.5 mm
2
Protective measures
Protection
1)
IP 65
Protection class
III
Overvoltage category
III