KROHNE OPTIFLUX 2000-4000 IECEx EN - Manual (Page 7)

INTRODUCTION
1
7
OPTIFLUX
www.krohne.com 06/2010 - 7312092100 - AD OPTIFLUX IECEx R01 en
1.3 Approvals
The OPTIFLUX 2100 C / 4100 C flowmeter consists of a flow sensor and a signal converter. The
approval number is:
IECEx KEM 09.0073 X IECEx KEM 09.0073 X IECEx KEM 09.0073 X IECEx KEM 09.0073 X
The flowmeters are approved to following IEC standards:
• IEC 60079-0 : 2004
• IEC 60079-1 : 2007-04
• IEC 60079-7 : 2006-07
• IEC 60079-11 : 2006
• IEC 60079-18 : 2004
• IEC 61241-0 : 2004
• IEC 61241-1 : 2004
1.4 OPTIFLUX 2000 / 4000
1.4.1 Compact versions
OPTIFLUX 2100 C / 4100 C is suitable for installation in gas hazardous areas zone 1 or zone 2,
gas group IIC, temperature class T4 and dust hazardous areas zone 21 or 22, surface
temperature 120 °C.
The connection compartment contains terminals for Power, Status / Pulse / Current, Sensor
coils (all in type of protection Ex e) and Sensor signal (in type of protection Ex ia). For electrical
data of these terminals, refer to section 3.2.
EX Marking OPTIFLUX 2100 C / 4100 C
INFORMATION!
All type examination certificates can be downloaded from the website.
Nominal diameter Ex marking
10...20 ("mb") Ex e ia mb IIC T4
25...150 ("d") Ex d e ia mb IIC T4
350...3000 ("e") Ex e ia mb IIC T4
Optional: Optional: Optional: Optional:
200...300 ("e") Ex e ia mb IIC T4
Additionally: Additionally: Additionally: Additionally:
All diameters Ex tD A21 IP64 T120°C