Yokogawa RAGN - Manual (Page 27)

<6. EXPLOSION PROTECTED INSTRUMENTS>
6-1
IM 01R01B10-00E-E 2nd edition: November 01, 2011-00 All Rights Reserved. Copyright © 2011, Rota Yokogawa
6. Explosion protected type instruments
6.1 Bistable inductive ring sensor (Option /GR2 to /GR8)
- 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 RI20, a suitable explosion-proof transmitter relay must be used.
- The maximum ambient temperature and the maximum temperature of the medium, which flows through
the tube, may not exceed 60°C.
- The connection cable may not be exposed to mechanical loads. The maximum axial strength is 30 N.
The inductive ring sensor RI20 is an intrinsic safe device. This is certified for hazardous areas of zone 1
(category 2) and zone 2 (category 3). They are not homologated for zone 0 (category 1). The classifications
in brackets are given according to EU- Regulation 94/9/EG (ATEX).
Temperature range : -25°C to +60°C
EC- Type Examination Certificate number: PTB 03 ATEX 2111
The identification in accordance with regulation 94/9/EG (ATEX)
- Manufacturer
: Rota Yokogawa, Rheinstr. 8, D-79664 Wehr
- Type : RI20-10 or RI20-17
- Serial number and year of the production:
7yymmxxx (yy=year, mm=month, xxx= incremented number (e.g. 70309001)
- Protection : Ex ia
- Group : IIC
- Category : 2
- Explosive atmosphere : G
- Temperature class : T6
- Certificate No. : PTB 03 ATEX 2111
- Entity parameters : Ui = 12 V, Ii = 22 mA , Pi = 66 mW,
Li = 20 mH, Ci = 200 nF
or
see certificate for data
- Marking according to regulation 94/9/EG : II 2 G
- The electrical connection of the RI20 is provided with free ends of the cables with cable hulls. Please
regard the installation regulations in accordance with IEC 364.
- The shielding of the connection cable is not for grounding of the RI20. A RI20 with damaged cable
isolation may not be used.
- Static charges of the RI20 housing have to be avoided. A corresponding warning note has to be attached
at the device.
WARNING
WARNING