KROHNE TIDALFLUX 2300 F Ex EN - Manual (Page 7)

INTRODUCTION
1
7
TIDALFLUX 2300 F
www.krohne.com 6/2013 - 7312442200 - AD EX TIDALFLUX 2300 - en - R02
1.4 TIDALFLUX 2000
The TIDALFLUX 2000 is certified as group II, category 2G equipment for gas hazardous areas
zone 1 and 2, group IIC, temperature class T6.
The TIDALFLUX 2000 contains following circuits:
Connection box with terminals for:
• Electrodes Electrodes Electrodes Electrodes (terminals 1, 2, 3, 4 = n.c.), in type of protection Intrinsic safety (Ex ia):
U
i
= 20 V, I
i
= 175 mA, C
i
≈ 0 nF, L
i
≈ 0 mH.
• Field coils Field coils Field coils Field coils (terminals 7, 8, 9 = n.c.), in type of protection Increased safety (Ex e):
U
n
= 40 V (switched DC voltage, alternately +40 and -40 V maximum),
I
n
= 125 mA (injected square wave current).
Terminal compartment with terminals for:
• RS 485 RS 485 RS 485 RS 485 (terminals C-, D, D-), in type of protection Intrinsic safety (Ex ia):
U
o
= 14 V, I
o
= 189 mA, P
o
= 0.662 W, C
o
= 730 nF, L
o
= 1 mH.
• Power supply Power supply Power supply Power supply (terminals L, N, PE), in type of protection Increased safety (Ex e):
U
n
= 100...230 VAC or 24 VAC/DC or 12 VDC.
The electrode circuit as intrinsically safe circuit shall, from the safety point of view, be
considered to be connected to ground.
The cable glands for the electrode and the RS 485 circuits are - as intrinsic safe circuits -
marked with blue O-rings.
Ex marking TIDALFLUX 2000 :
NOTE: The level electronics CLC-300 which is placed in the IFC 300 housing above the
TIDALFLUX sensor may not be used in another scope than it is intended for.
Nominal diameter Nominal diameter Nominal diameter Nominal diameter
DN200...300 (II 2 G) Ex d e ia q [ia] IIC T6 Gb
DN350...1800 (II 2 G) Ex d e ia [ia] IIC T6 Gb