1 technical data, 1 technical data -2, Ii 2 g – Yokogawa RAMC User Manual
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<10. EXPLOSION-PROTECTED TYPE INSTRUMENTS>
10-2
IM 01R01B02-00E-E 10th edition January 01, 2013 -00
All Rights Reserved. Copyright © 2003, Rota Yokogawa
10.2 Intrinsically safe ATEX certified components (/KS1)
10.2.1 Technical data
Data of electronic transmitter type -E, -H and -J :
The electronic transmitter is an intrinsically safe device. This device is certified for hazardous areas of zone 1 (cat-
egory 2) und zone 2 (category 3). It is not homologated for zone 0 (category 1). The classifications in brackets are
given according to EU-Regulation 94/9/EG (ATEX).
EC-Type Examination Certificate Nr.: PTB 12ATEX2003
Applicable standards:
EN 60079-0: 2009
EN 60079-11: 2007
Identification in accordance with regulation 94/9/EG (ATEX) :
II 2 G
Type of protection
: Intrinsically safe Ex ia IIC T6 Gb
Ambient temperature
: -40°C ... +70°C
Safety relevant maximum values:
Maximum voltage
: U
i
= 30 V
Maximum current (IIC)
: I
i
= 101 mA
Maximum power
: P
i
= 1.4 W
Inner inductance
: L
i
= 0.15 mH
Inner capacity
: C
i
= 4.16nF
Data of electronic transmitter type -G :
See IM 01R01B02-01E-E.
Data of limit switches :
The following table shows the maximum safety parameters for intrinsic safe limit switches according the certificates
PTB 99 ATEX 2219X (Standard) and PTB 99 ATEX 2049X (Fail Safe).
Table 10.1
Standard /K1 ... /K3
Ex ia IIC T6
Fail Safe /K6 .../K10
Ex ia IIC T6
Type 2
Type 3
Type 2
Type 3
Ui [V]
16
16
16
16
Ii [mA]
25
52
25
52
Pi [mW]
64
169
64
169
Ci [nF]
150
150
30
30
Li [µH]
150
150
100
100
max. ambient temp. [°C] for T6
49
28
49
28
max. ambient temp. [°C] for T5
61
40
61
40
max. ambient temp. [°C] for T4 - T1
89
68
89
68
The limit switches are also dust approved.
EC-Type Examination Certificate No.: ZELM 02 ATEX 0128X
Identification in accordance with regulation 94/9/EG (ATEX) :
II 1 D
Type of protection
: Ex iaD 20
Maximum surface temperature
: 108°C.
The dust explosion proof for the limit switches is only available if ordered without electronic transmitter (only with
housing type "T").