KROHNE OPTIWAVE 7300 IECEx - Manual (Page 6)

1
GENERAL SAFETY INFORMATION
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OPTIWAVE 7300 C
www.krohne.com 10/2010 - 4000176502 - AD IECEX OPTIWAVE7300 R02 en
1.5 IECEx nameplate
Figure 1-1: Ex ia / Ex iaD nameplate (4...20 mA output)
Figure 1-2: Ex d[ia] / Ex tD[iaD] nameplate (4...20 mA output)
1 IECEx certification agency code
2 Types of device protection for explosive atmospheres with gas, including approved Gas Groups (IIA, IIB or IIC) and tem-
perature classes (T6...T4 or T3 - depends on the antenna type) and equipment protection level
3 Types of device protection for explosive atmospheres with dust, zones, degree of ingress protection (if fitted with the
appropriate cable glands) and maximum surface temperature
4 Intrinsically-safe circuit data
5 Maximum voltage in accordance with IEC 60079-0
6 Minimum waiting time after power-off before it is safe to open the terminal compartment
7 Cable entry type and size (Aluminium housing: M26×1.5, M20×1.5, ½ NPT or G ½; Stainless steel housing: M25×1.5,
M20×1.5, ½ NPT or G ½)