Ex i Temperature sensors

Ex i, intrinsically safe, for zones 0, 1, 2, 20, 21 or 22

The Ex i type EPIC® SENSORS temperature sensors are either “Simple Electrical Devices” or Ex II 1G / 1D approved, and they are applicable for Ex zones 0, 1, 2, 20, 21 and 22. 

• The Ex i-type sensor is a Pt100 or TC sensor, which can also be used for dust areas.
• The measuring circuit must be cabled to an Ex-approved Associated Equipment in safe area.
• The product certificates give more detailed specifications, e.g. the ambient temperatures allowed for the approved sensors.
• The currently approved sensor range is defined in certificates, and types are listed below.

Simple Electrical Device

• Pt100 and TC sensors are both considered Simple Electrical Devices. When installed in an Ex i circuit the sensor itself has no need for ATEX/IECEx approval. If it has a connection head, it must comply with IP65 protection class and be equipped with a separate ground terminal. The whole circuit is intrinsically safe (I.S.) only when the sensor's outgoing measuring circuit is connected to an I.S.-approved device outside the Ex-area.

ATEX

• Lapp Automaatio Oy has been granted an ATEX Quality Assurance Notification EESF 18 ATEX Q 006, as required under EU directive 2014/34/EU. The notification, issued by Eurofins Expert Services Oy*, gives the right to manufacture temperature sensors with the protection concepts Ex d, Ex e, Ex i, Ex m and Ex t, for use in explosive atmospheres.
• When ATEX certified Ex i-types are needed, we will manufacture sensors with approval markings: Ex II 1G Ex ia IIC T6…T3 Ga, Ex II 1/2G Ex ib IIC T6…T3 Ga/Gb, Ex II 1D Ex ia IIIC T135 °C Da, Ex II 1/2D Ex ib IIIC T135 °C Da/Db. Please find the product certificate EESF 21 ATEX 043X from this link.
• We manufacture Ex i-type approved sensors with many designs. Please contact our Ex-experts.

IECEx

• Lapp Automaatio Oy's sensor manufacturing operations have been assessed in an IECEx Quality Assessment Report FI/EESF/QAR18.0004 (link to the IECEx database), as required by the EN ISO/IEC 80079-34 standard. The auditing organization was Eurofins Expert Services Oy*. The report gives the right to manufacture Ex e, Ex t, Ex d, Ex m and Ex i type temperature sensors for use in explosive atmospheres and to apply for IECEx approval for them.
• When IECEx product certified Ex i-types are needed, we will manufacture sensors with approval: Ex ia IIC T6…T3 Ga, Ex ib IIC T6…T3 Ga/Gb, Ex ia IIIC T135 °C Da, Ex ib IIIC T135 °C Da/Db.
• IECEx product certificate can be downloaded here: IECEx EESF 21.0027X .

*NOTE! Name since 1.4.2022 is: Eurofins Electric & Electronics Finland Oy 

Product range

The range of Ex i approved temperature sensors The currently approved sensor types according to certificates EESF 21 ATEX 043X and IECEx EESF 21.0027X are listed below.