Electrical Data - KROHNE OPTISWIRL 2100 Supplementary Instructions Manual

DEVICE DESCRIPTION
2

2.9 Electrical data

Signal circuits Signal circuits Signal circuits Signal circuits
The vortex flowmeter signal circuits may only be connected to circuits with the following
maximum values. A safety value of U
Device version
OPTISWIRL 2100 C Ex
VFC 100 F 020 Ex
Table 2-17: Maximum values for signal circuits.
Flow sensor circuits Flow sensor circuits Flow sensor circuits Flow sensor circuits
For the compact versions, the intrinsically safe flow sensor circuits are designed as internal
circuits.
For the remote versions, the intrinsically safe flow sensor circuits are led through.
The maximum permissible safety values of the flow sensor circuits are listed below:
Remote signal converter, flow sensor circuit (terminal 1 to 7, colour-coded) Remote signal converter, flow sensor circuit (terminal 1 to 7, colour-coded)
Remote signal converter, flow sensor circuit (terminal 1 to 7, colour-coded) Remote signal converter, flow sensor circuit (terminal 1 to 7, colour-coded)
U = 6.65 V; I
o
Remote flow sensor (terminal 1 to 7, colour-coded) Remote flow sensor (terminal 1 to 7, colour-coded) Remote flow sensor (terminal 1 to 7, colour-coded) Remote flow sensor (terminal 1 to 7, colour-coded)
U = 7 V; I
i i
INFORMATION!
The verification of intrinsic safety for the interconnection between the flow sensor an the signal
converter is not necessary, if the cable length does not exceed 50 m / 164 ft and the supplied
cable is used.
18
Circuit
Terminals
Current output 4...20 mA
C1, C2
Pulse output
M1, M2, M3, M4
= 1107 mA; P = 650 mW; C
o o
= 1107 mA; P = 650 mW; C
i
= 253 V is considered for the power supply units.
m
Nominal voltage
12...32 VDC
8...32 VDC
= 1.5 µF; L = 73 µH
o o
= 0; L = 0
i i
www.krohne.com 10/2020 - 4008164801 - AD OPTISWIRL2100 Exd R01 en
OPTISWIRL 2100
Nominal current
4...20 mA
≤100 mA