KROHNE OPTISONIC 6300 EEx EN - Manual (Page 12)

2
TEMPERATURE LIMITS
12
OPTISONIC 6300
www.krohne.com 03/2010 - 7309972300 - EX OPTISONIC 6300 R03 en
2.2 UFC 300 F(/i)-Ex
The UFC 300 F(/i)-Ex ultrasonic signal converter in separate version is not influenced by the
temperature of the process medium, because it is installed on a distance of the pipe-line and
thus not physically connected to the pipe-line. The UFC 300 F(/i)-Ex signal converter has a
temperature classification of T6 (85°C). The permissible ambient temperature is dependent on
the material that the electronics housing is made of, namely:
• die-casted aluminum: -40...+60ºC
• die-casted stainless steel: -40...+55ºC
2.3 OPTISONIC 6000 xxxxxx-Ex
The OPTISONIC 6000 xxxxxx-Ex clamp-on ultrasonic flow sensor has the following maximum
process temperatures at the maximum ambient temperature T
a
of 70°C.
Temperature class Temperature class Temperature class Temperature class Maximum process temperature [ Maximum process temperature [ Maximum process temperature [ Maximum process temperature [ºC] at T C] at T C] at T C] at T
a aa a
= 70ºC
T6 80
T5 95
T4 120 1
T3 195 2
T2 200 2
1 XT version: 130°C
2 XT versions only