Mag-FLEX Probe Overview
Fafnir BA-350 Protection Device (Surge Protector)
10
MAG-FLEX SPARE PARTS AND ACCESSORIES
Item
Part Number
Single-Channel Surge Protector (Wireless Install)
848100-001
Dual-Channel Surge Protector (Wired Install)
848100-002
Overvoltage Protection Device Type BA 350, 2-wire
903313
Leader Cable with M12 Connector
908704 (Spare part only, supplied with all new probes)
FAFNIR USB Adapter [Mag-Flex]
900180
Water Float for Biodiesel
908546
Connecting cable with M12 connector
908704
Fafnir BA-350 Protection Device (Surge Protector)
This section details safety information that is pertinent to the Fafnir Surge Protector only. The Veeder-Root Surge
Protector is certified by UL/DEMKO.
The overvoltage protection device is intended to protect intrinsic safety sensor apparatus from overvoltage
eventually caused by atmospheric static electricity and conveyed by the connecting cables.
INFORMATION ON SAFE USE
The equipment is for use of discharge overvoltage and is designed as a simple apparatus according to EN/IEC
60079-11, clause 5.7. Therefore, it can be used without a type examination certificate inside potentially explosive
atmospheres (zone 1 and zone 2). The overvoltage protection is for use of all gas groups (IIA, IIB, and IIC) and its
temperature class is T6.
The overvoltage protection is enclosed by a metal enclosure. The material composition of the enclosure includes
according to EN/IEC 60079-0, clause 8.1.2 for an EPL Gb less than 7,5% magnesium and titan, such as AlSi12.
This instruction manual is valid of types BA 350-X.
INFORMATION ON SAFE MOUNTING RESP. DEMOUNTING
The overvoltage protection is built-on a metal enclosure with a degree of protection IP66. For the installation the
housing cover has to be removed (four screws) and it has to be put in place and tight again by the screws after the
connection of the wirings. Cable glands have to be tight as appropriate to maintain the IP 66 grade of protection.
INFORMATION ON SAFE INSTALLATION
The wiring may only take place de-energized. Special regulations, among other things, EN/IEC 60079-14 resp.
EN/IEC 60079-25 resp. the local installation regulations should be noted. Wall mounting of the overvoltage
protection is possible.
General remark (see also EN/IEC 60079-25, clause 12 resp. EN/IEC 60079-14, clause 12.3): The overvoltage
protection device must be installed outside zone 0 but as near as technical possible to the boundary of zone 0,
preferable in a distance of maximum 1m.
Both terminal blocks can be used either as an input or output. Polarity must be observed.
For the connection to the potential equalisation (PA) a terminal on the outside of the enclosure is provided.
