Safety – WIKA S-20 User Manual
Page 8
8
GB
WIKA Safety manual pressure transmitter, model S-20
14082128.02 06/2014 GB/D/F/E
Parameter
Output signal
4 ... 20 mA
(2-wire)
20 … 4 mA
(2-wire)
DC 1 … 5 V
DC 1 … 6 V
DC 0.5 …
4.5 V
DC 0.5 … 4.5
V ratiometric
Minimum operating voltage U
B
[V DC]
8
8
8
9
8
4.5
Maximum operating voltage UB
[V DC]
36
(35 with cULus)
36
(35 with cULus)
36
(35 with cULus)
36
(35 with cULus)
36
(35 with cULus)
5.5
Operating voltage U
B
absolute
maximum [V DC]
40
40
40
40
40
5.5
Maximum ripple in the operating
voltage [% of V DC ] Frequency
range with 50 Hz, 60 Hz, 100 Hz,
120 Hz
±0.5
±0.5
±0.5
±0.5
±0.5
N/A
Maximum current supply [mA]
25
25
12
12
12
12
Dissipation loss [mW]
828
828
432
432
432
432
Operating voltage influence
[% every 10 V]
±0.05
±0.05
±0.05
±0.05
±0.05
N/A
Load maximum [Ω]
≥ (U
B
- 7.5 V) /
0.023 A
≥ (U
B
- 7.5 V) /
0.023 A
≤ 5,000
≤ 6,000
≤ 4,500
≤ 4,500
Maximum load capacitance [nF]
N/A
N/A
100
100
100
0.47
Reverse polarity protection
between U
B+
/U
B-
yes
yes
yes
yes
yes
no
Short-circuit resistance between
S
+
/U
B+
N/A
N/A
no
no
no
no
Short-circuit resistance between
S
+
/U
B-
N/A
N/A
yes
yes
yes
yes
Settling time [ms]
3
3
3
3
3
3
Switch-on time [ms]
150
150
150
150
150
150
Table 2-1: Parameters
2. Safety