Yokogawa RAGN - Manual (Page 29)

<6. EXPLOSION PROTECTED INSTRUMENTS>
6-3
IM 01R01B10-00E-E 2nd edition: November 01, 2011-00 All Rights Reserved. Copyright © 2011, Rota Yokogawa
Marking:
6.2 Magnetic contact (Option /GM1 to /GM5)
• Only trained persons may use the instrument in the industrial area.
• It is forbidden to users to carry out specification changes and other changes at the device. Repairs at
the device aren’t permitted.
• To ensure explosion protection of the GM, a suitable explosion-proof transformer isolated barrier must
be used.
• The maximum ambient temperature and the maximum temperature of the medium, which flows through
the tube, may not exceed 70°C.
• The connection cable may not be exposed to mechanical loads. The maximum axial strength is 30 N.
• Static charge of the GM case has to be avoided. A corresponding warning note has to be attached at
the device.
The limit switch GM is classified according EN 60079-11 chapter 5.7, IEC 60079-11 chapter 5.7 and ANSI/
ISA 60079-11 chapter 5.7 as "Simple Apparatus".
For use in hazardous area the limit switch must be connected to a suitable explosion-proof transformer isolated
barrier, which does not exceed the following maximum values :
Maximum voltage Uo
: 15 V
Maximum current Io : 50 mA
Maximum power Po : 187 mW
Classification :
- Type
: GM1 or GM2
- Protection : intrinsic safe
- ATEX / IECEx : IIC 2G
- FM : I, 1, A, B, C, D
- Temperature class : T6
- Entity parameters : Ui = 15 V ; Ii = 50 mA ; Pi = 187 mW ; Li ≈ 0 mH ; Ci ≈ 0 nF
WARNING
Rota Yokogaw
Rheinstr. 8
D-79664 Wehr
Type : RI20-10-K
U = 4.5 ... 15V
SN : ..............
Rota Yokogawa
Rheinstr. 8
D-79664 Wehr
Type : RI20-10-K
U = 4.5 ... 15V
SN : .............. Ex ia IIC T6
PTB 03 ATEX 2111
II 2 G
see certificate
for data