Rice Lake PR5230 Fieldbus Transmitter - Manual (Page 238)

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940515230000-460
Sicherheitshinweise/
Safety instructions
26.11.2010
Klausgrete
Zeichnungs-Nr.
Benennung
Revision 03
20. Option WE1 (4): Connected load cells or weighing platforms (13) must be certified for use in Ex
areas Zone 1 or Zone 21 (EC-Type-Examination-Certificate). Observe gas group and temperature
class when use in Ex area Zone 1. When use in Zone 21, observe the allowed surface temperature.
For the connection of load cells or weighing platforms in Ex zone 1, the parameters of the
transmitter with option WE1 are (intrinsic safe output Ex ib IIC):
Uo = 21,0 V between the lines
Io = 143 mA
Po = 1,55 W
IIC: Co = 188 nF between the lines
Lo = 0,12 mH
IIB: Co = 1,27µF between the lines
Lo = 5 mH
Sartorius load cells / Sartorius weighing platforms of the following series can be used in Zone 1 and
Zone 21:
CAPX..-......-....... (KEMA 02 ATEX 1010X)
PR62../.. (PTB 02 ATEX 2059)
MP52 (Sira 04 ATEX 2142 X)
MP57, MP59, MP59T (Sira 04 ATEX 2143 X)
MP55, MP58, MP58T (BVS 09 ATEX E 131 X)
also the cable junction boxes PR6130/64Sa, PR6130/65S (KEMA 06 ATEX 0016 X).
Connection to the load cells or weighing platforms can take place via the intrinsic safe connector
X100 (labeled with ’X100' and ’Ex ib’ ) on the Analogboard, or via the intrinsic safe connectors
X101 ... X104 on the ’Wiring board’ (16), if existing.
21. The connection cable (12) between the transmitter and the intrinsic safe load cells / weighing
platforms are limited in length. For standard cable (e.g. Typ LiYCY, 6-conductors, C’ = 200nF/km,
800µH/km, R’=20Ohm/km) 300m cable length are permitted in group IIC, plus L0 = 100µH and C0
=120nF for the load cells / weighing platforms. For group IIB there is no limitation in cable length for
such a type of cable.
22. The installation must be checked for correct function and safety by a trained and qualified person at
appropiate intervals.
23. If the installation does not work properly, disconnect it from the supply voltage immediately!
24. In the event of repair, use only original spare parts supplied by the manufacturer!
25. Any modifications to the instrument (except by persons authorized by Sartorius) cause loss of
conformity for use in Zone 2 and Zone 22 hazardous areas and invalidate all guarantee claims.
Similarly, the instrument may only be opened by qualified and authorized persons.
26. Modifications (also by Sartorius personnel) are subject to written approval.
27. Remove dust regularly on instruments in Zone 22. Dust layers of more than 5mm are not permitted.
28. This additional instructions don’t release the operating company from its responsibility for
installation, operation and test according to the local applicable standards, directives, regulations
and laws.