Sensing and Internet of Things
7
Installation Instructions for the
Wireless Hazardous Area Limit Switches, WBX Series
ISSUE 3
50096377
5 DIAGRAMS
5.1
Connection Diagrams for Remote
Antenna Configuration
Figure 1 – WBX Connected to Remote Antenna
2
Directly
WBX
Limit
Switch
Remote
Antenna
RF Cable A or B
Zones 0, 20/1, 21, IIC, IIIC, Ga, Da
Uo = 5.0 V
Io = 757 mA
Po = 0.946 W
Co = 23.48
µ
F
Lo = 4.487
µ
H
Class I, II, Div. 1,
Groups A, B, C, D, E, F, G
Voc = 5.0 V
Isc = 757 mA
Po = 0.946 W
Ca = 23.48
µ
F
La = 4.487
µ
H
Figure 2 – WBX Connected to Remote Antenna
2
Via
Lightning Arrestor
WBX
Limit
Switch
Remote
Antenna
RF Cable
A or B
Lighting
Arrestor
RF Cable B
Zones 0, 20/1, 21, IIC, IIIC, Ga, Da
Uo = 5.0 V
Io = 757 mA
Po = 0.946 W
Co = 23.48
µ
F
Lo = 4.487
µ
H
Class I, II, Div. 1,
Groups A, B, C, D, E, F, G
Voc = 5.0 V
Isc = 757 mA
Po = 0.946 W
Ca = 23.48
µ
F
La = 4.487
µ
H
NOTES:
(1) Only lightning surge arrestors determined to be
simple apparatus may be installed.
(2) Refer to Tables 10 and 11 in following page that cap-
tures the approved antenna to be used with the WBX
product as remote connection.
6
REMOTE ANTENNAS
6.1
Intrinsically Safe Device Entity
Parameters for Remote Antenna Cables
Table 9 – I Intrinsically Safe Device Entity Parameters
for Remote Antenna Cables
Length
Loss (dB)
Total
Capacitance
Total
Inductance
RF Cable A
WCA200RN-
PRSP-002
0,61 m
[2 ft]
0.34
49 pF
0.12
m
H
WCA200RN-
PRSP-010
3,05 m
[10 ft]
1.69
245 pF
0.61
m
H
RF Cable B
WCA200RNJR-
SP-002
0,61 m
[2 ft]
0.34
49 pF
0.12
m
H
WCA200RNJR-
SP-005
1,52 m
[5 ft]
0.85
122 pF
0.3
m
H
WCA200RNJR-
SP-010
3,05 m
[10 ft]
1.69
245 pF
0.61
m
H
WCA200RNJR-
SP-015
4,57 m
[15 ft]
2.54
367 pF
0.92
m
H
WCA200RNJR-
SP-020
6,1 m
[20 ft]
3.38
490 pF
1.2
m
H
