RECKMANN R14 Series, Руководство по эксплуатации

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26
5.2.2
Electrical and thermal parameters Ga/Gb
WARNING
Risk of accident due to misuse of the explosion-proof temperature sensors!
Do not use the sensors outside the approved temperature ranges. Do not use the sensors in corrosive
and/or abrasive media.
The following parameters must be observed for operation in the range with "Ga" and "Gb" device
protection level:
Electrical parameters:
maximum input voltage: U
i
30 V DC
maximum input current: I
i
100 mA
maximum input power: P
i
see table
maximum internal capacity: C
i
negligible
maximum internal inductance: L
i
negligible
Thermal parameters:
T6…T5 (ambient temperature range)
-40°C to +80°C
T4…T1 (ambient temperature range) -40°C to +100°C
NOTE
For operation in Zone 0 with type of protection II 1 G Ex ia IIC T1…T6 Ga the process temperature is equal
to the ambient temperature.
The ambient temperatures for temperature sensors with connection cable are also determined
and restricted by the operating temperatures of the connection cables and/or plug connectors.
The installation of the temperature sensors with connection cable must conform to the
requirements of IEC / EN 60079-14 and IEC / EN 60079-25.
Temperature ranges and Ex-relevant electrical parameters:
Lemo plug connector
-40°C to +200°C
Mini-compensation plug connector -40°C to +200°C
In the standard installation the sensor does not have a conductive connection to the external
sheath. The insulation thicknesses are defined to meet the requirements for dielectric strength.