Safety Concern for Class I, Division 1, Group AB and Zone 0 Group IIC Installations of VEGA PLICSCOM

FM Approvals has been made aware that the VEGA PLICSCOM display module may, in rare cases, result in an energy level exceeding the allowable limits for intrinsic safety gas groups AB / IIC.

Company Identity: VEGA Grieshaber KG

Product Identity:
VEGAFLEX 80 Series, Level Measurement Equipment
VEGABAR 80 Series, Pressure Sensor Transmitters
VEGAPULS 6X, Level Transmitters
VEGAPULS 64/69, Level Transmitters

Nameplate Data:

FM Approvals Certificate Numbers as follows:

VEGAFLEX 80 Series: FM16US0403X
VEGABAR 80 Series: FM16US0044X
VEGAPULS 6X: FM22US0038X & FM22CA0026X
VEGAPULS 64/69: FM20US0103X

Number of Units Impacted: 2700 units containing a PLICSCOM display module manufactured between March 2021 to May 2024.

FM Approval Status: FM Approved

Hazard Involved: Units containing the PLICSCOM display module are capable of producing an internal voltage which exceeds the allowable limits for intrinsic safety for gas groups AB / IIC; thereby becoming a potential ignition source. This is only a concern for units used in gas groups AB or IIC. VEGA is addressing the safety concern by supplying modified PLICSCOM display modules. Customers in North America who may be in possession of these units where they are used in gas groups AB / IIC have been notified and will be provided replacement PLICSCOM display modules.