KROHNE OPTIFLEX 1300 IECEx - Manual (Page 9)

INSTALLATION
2
9
OPTIFLEX 1300 C
www.krohne.com 09/2010 - 4000176402 - AD IECEX OPTIFLEX1300 R02 en
2.2 Operating conditions
The allowable ambient temperature and corresponding flange temperature range for the device
depends on the Ex equipment category and temperature classes marked on the nameplate.
2.2.1 Ambient and flange temperature
The equipment protection level (EPL) and temperature class give the ambient temperature and
related flange temperature ranges for the device.
EPL Ga:
Ex ia devices only - with the 4...20 mA output option
EPL Ga/Gb:
Ex ia and Ex d[ia] devices - with the 4...20 mA output option
WARNING!
The gasket temperature must be in the approved limits. For more data, refer to "Pressure and
temperature ranges" in the Installation chapter of the handbook.
INFORMATION!
The remote converter and Metaglas
®
options use the values that follow.
Temperature
class
Ambient temperature Flange temperature
[°C] [°F] [°C] [°F]
T6 -20…+57 -4…+134 -20…+60 -4…+140
Temperature
class
Ambient temperature Flange temperature
[°C] [°F] [°C] [°F]
T6 -40…+57 -40…+134 -20…+60 -4…+140
T5 -40…+72 -40…+161 -20…+60 -4…+140
T4 -40…+80 -40…+176 -20…+60 -4…+140