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IECEx/ATEX certification

NOTE: The hazard type for which your system is certified is clearly indicated by the Safety Marking on the the label affixed to the transducer.

Compliance with the Essential Health and Safety Requirements, with the exception of those listed in the relevant certificate, is assured by compliance with the following standards:

IECEx ATEX
IEC 60079-0:2017 Ed. 7
IEC 60079-11:2011 Ed. 6		 EN IEC 60079-0:2018
EN 60079-11:2012

Gas Hazards (Group II)
Viscometer certified IECEx SIR 08.0028X and Sira 08ATEX2085X

Gas Hazards - Table.JPG

1 "Process temperature" means the temperature of the resonating sensor shaft below the process connection, whether or not it is actually immersed in the fluid.

2 Maximum process temperature can be reduced further in accordance with the specification of the  individual model.

The installer is responsible for ensuring that external sources of heating or cooling do not take the electronic drive assembly enclosure outside the permitted temperature range.

Dust Hazards (Group III)

Viscometer certified IECEx SIR 08.0028X and Sira 08ATEX2085X

Dust Hazards - Table.JPG

NOTE: For group III applications, the marked maximum surface temperature of T135°C refers to the drive assembly. The permitted ambient range for the drive assembly is -40°C to +80°C. The maximum surface temperature of the viscometer sensor element when fitted with a platinum resistance thermometer is the process temperature plus 15°C. Without a platinum resistance thermometer, the sensor element temperature will not exceed the process temperature. It is the installer’s responsibility to ensure that external sources of heating and cooling do not take the drive assembly enclosure outside the permitted ambient range.

3 Refer to “Gas Hazards (Group II)” table for permissible temperature ranges.

IMPORTANT: The following applies to all intrinsically safe transducers covered by Sira certificates IECEx SIR 08.0028X and Sira 08ATEX2085X:

  1. To comply with the requirements for intrinsic safety, the equipment must be supplied only from certified associated apparatus with a safety description as detailed in the Certificate.
  2. Subject to the applicable Code of Practice, the enclosure may be opened and the equipment worked on “live” as all sparks which are inadvertently produced are non-incendive for all flammable gases.
  3. Installation, inspection and maintenance of the equipment shall be in accordance with the relevant Codes of Practice, e.g. IEC 60079-14 and IEC 60079-17.
  4. Damage to the outer enclosure does not affect the intrinsic safety of the transducer. The potted circuitry contains certain components on which intrinsic safety depends and damage or chemical attack to the potting compound may invalidate intrinsic safety.
  5. The temperature class of the electronic drive assembly depends on the ambient temperature (“Ta”). The ambient temperature pertains to the environment within the enclosure which contains potted circuitry. The temperature of the assembly enclosure must not therefore exceed the maximum Ta for the applicable temperature class.
  6. Some versions of this equipment use an aluminium alloy enclosure and ignition sources due to impact and friction sparks could occur. This shall be considered when an aluminium alloy  enclosure is installed.
  7. The Indie, ReactaVisc, Viscolite, XL5 and goVisc transducers may use a plastic enclosure that could generate an ignition-capable level of electrostatic charge under certain extreme  circumstances. Therefore, the equipment shall not be installed in a location where the external conditions may lead to the build-up of electrostatic charge on such surfaces, particularly in Zone 0 applications. Additionally, the equipment shall only be cleaned with a damp cloth.

 

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