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GE Masoneilan 469 Series Instruction Manual page 9

Position transmitter and limit switch
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4.
ATEX Intrinsic Safety Marking and Electrical
Safety Parameters (Contd)
• They are supplied by a certified power source
* for explosible atmospheres with the maximal
characteristics:
Ui = 16V ; Ii = 0.052A ; Pi = 0.169W.
* The power source (Control circuit) must be one
manufactured by Pepperl & Fuchs below:
WE 77/EX 1 or WE 77/EX 2
• The wiring connection is done on one or two terminal
connector type:
2
MK 3 ; 2.5mm
; 380 volts ; manufacturer:
WEIDMULLER or equivalent product.
4.2.1.3 Maximum Input Characteristics
Variation
DC Source
With
Micro-
AC Source
switch
Peak Value
With Proximity Switch
4.2.2 Types 496-858 and 496-858/. :
4.2.2.1 Type 496-8:
The position transmitter is connected to a linear tension
source of a certified type for use in group IIC hazardous
locations and its output circuit must be intrinsically safe
approved per EN 60079-11.
Maximum input characteristics at terminal block:
Ui (V)
Ii (A)
28
0.11
© 2018 Baker Hughes, a GE company. All rights reserved.
Li
Ui
Ii
Ci
(μH)
(V)
(A)
(nF)
30
0.5
0
0
90
1.4
0
0
16
0.052 120
200 0.169
Ci (nF)
Li (μH)
Pi (W)
36
0
0.77
4.2.2.2 Type 496-858/. :
The additional functions of position transmitters are
identical to type 496-•58
Maximum input characteristics at terminal block of
additional function:
Variation
DC Source
With
Micro-
AC Source
switch
Peak Value
With Proximity Switch
Pi
(W)
-
496 Series Masoneilan Position Transmitter ATEX Instruction Manual | 9
Ui
Ii
Ci
Li
(V)
(A)
(nF)
(μH)
30
0.5
0
0
90
1.4
0
0
16
0.052 120
200 0.169
Pi
(W)
-
-

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