KROHNE OPTISONIC 7300 Ex EN - Manual (Page 10)

1
INTRODUCTION
10
OPTISONIC 7300 / 8300
www.krohne.com 05/2012 - 7312262200 - AD EX OPTISONIC 7300/8300 R02
1.9 Technical data
1.10 Marking codes
Due to the various configuration options, the OPTISONIC 7300 gas flowmeter series can have
several (different) explosion safety measures implemented.
Process medium Flammable and non-flammable gases
Protection category acc. to IEC 529 /
EN 60529
IP 65 or better
Ambient temperature range Ambient temperature range Ambient temperature range Ambient temperature range
Titanium transducers
OPTISONIC 7300 C/...-Ex: -40...+65°C 1
GFC 300 F/...-Ex: -40...+65°C 1
OPTISONIC 7000...-Ex (incl. XT-version) : -40...+70°C
Stainless steel HT / steam transducer OPTISONIC 8000-Ex: -40...+60°C
Synthetic transducers 2
(only available in OPTISONIC 7000-Ex)
Type G5.nn: -50...+70°C
Type G6.nn, Temp class T6: -50...+70°C
Type G6.nn, Temp class T5: -50...+85°C
Type G6.nn, Temp class T4: -50...+100°C
Process medium temperature range Process medium temperature range Process medium temperature range Process medium temperature range
Titanium transducers OPTISONIC 7300 C/...-Ex: -50...+180°C
OPTISONIC 7000-Ex: -50...+180°C
OPTISONIC 7000 XT-Ex: -50...+220°C
Stainless steel HT / steam transducer OPTISONIC 8000-Ex: -200...+440°C
Synthetic transducers 2
(only available in OPTISONIC 7000-Ex)
Type G5.nn, Temp. class T6: -50...+70°C
Type G6.nn, Temp class T6: -50...+70°C
Type G6.nn, Temp class T5: -50...+85°C
Type G6.nn, Temp class T4: -50...+100°C
INFORMATION!
1 Maximum ambient temperature applies to aluminum converter housing. Stainless steel
version is limited to +55 ° C.
2 The ATEX-certificate KEMA 07 ATEX 0181 X (Issue no. 3) describes the maximum ambient
temperatures of transducers type G5.nn and G6.nn, which should be read as process
temperature (this is the temperature of the medium that surrounds the transducers). The
ambient temperature is the (air) temperature at the location where the meter is installed.