Installation; Operation; Electrostatic Charging (Esd) - Vega VEGAPULS 6X Series Safety Instruction

with an intrinsically safe supply and signal circuit can be operated that fulfills type of protection
intrinsic safety with protection level "ib".
The classification mark then changes to:
•
II 1/2G Ex ib IIC T6...T1 Ga/Gb
•
or
•
II 2G Ex ib IIC T6...T1 Gb
•
or to:
•
II 1/2D Ex ib IIIC T* °C Da/Db
•
or
•
II 1D Ex ib IIIC T111 °C Db
•
T* see chapter "9 Thermal data"
After the use with Ex ib supply, the instruments must no more be used in circuits with protection
level Ex ia.
Ambient temperature
You can find the details in chapter "Thermal data" of these safety instructions.
5

Installation

•
The installation of the device must only be carried out by qualified personel.
•
The staff must be trained in explosion protection and familiar with the relevant valid regulations.
•
Install the instrument in accordance with the manufacturer specification and the applicable
national regulations, e.g. planning and installation in accordance with IEC/EN 60079-14.
•
The devices must be integrated into the local potential equalization.
•
If grounding of the cable screening is necessary, this must be carried out acc. to the valid stand-
ards and regulations, e.g. acc. to IEC/EN 60079-14.
•
For devices with integrated overvoltage protection the lower voltage resistance against ground
of 340 V must be observed.
• eff
Close the housing lid (s) up to the stop before starting operating, to ensure the IP protection rat-
ing specified on the type label.
6

Operation

•
Do not operate the device outside the electrical and thermal specifications given in this safety
instruction
•
Note the relation between process temperature on the sensor/antenna and the permissible
ambient temperature on the electronics housing. For permissible temperatures, see the respec-
tive temperature tables. See chapter "Thermal data".
•
The information on mechanical wear in the operating instructions must be observed
•
The continuous operating temperature of the connection cable must be suitable for the tempera-
ture range of the application
•
Only original spare parts or spare parts approved for the purpose may be used for repairs
•
When connecting a VEGAPULS 6X to an non-intrinsically safe circuit, it must be no longer be
used in intrinsically safe circuits.
•
If overvoltage protection is required, e.g. against atmospheric overvoltages, all circuits leaving
the housing of the VEGAPULS 6X must be protected against overvoltages
•
Modifications on the instrument can influence the explosion protection and hence the safety
•
Modifications must only be carried out by employees authorized by VEGA
7 Electrostatic charging (ESD)
In case of instrument versions with electrostatically chargeable plastic parts, the danger of electro-
static charging and discharging must be taken into account!
VEGAPULS 6X
UKEX
9