Special Conditions For Use - MTS Systems Level Plus Operation And Installation Manual

Model MR Operation and Installation Manual
Agency Information, ATEX, IECEx, and CCoE

SPECIAL CONDITIONS FOR USE

• Model MR sensors may only be connected to certified intrinsically safe circuits (Ex ia or Ex ib).
• The electronics housing is to be installed in zone 1 (category 2G, EPL Gb}. The sensor pipe/hose may be installed in zone 0
(category 1, EPL Ga} if not restricted below.
• Equipotential bonding shall be installed inside and outside the hazardous area along the cable for supply and data.
• Float usage:
- Metallic floats may only be used if they have a weight offset (asymmetric weight distribution).
- Metallic floats on non-metallic pipes may not be used.
- Aluminum floats may not be used.
• Plastic floats may only be installed in hazardous areas which require apparatus of category 1G (for zone 0} with explosion group IIA.
Plastic floats may not be used on non-metallic pipes.
• Sensors with flexible measuring hoses:
- The hose has to be mechanically protected from external impacts which may affect its function as separation wall.
- Avoid kinking or bending the flexible hose in less than 16 inch (406 mm) diameter.
• Consult MTS if dimensional information on flameproof joints are necessary.
• For XP keep covers tight when circuits energized. Note: seal conduits within 18".
Level Plus ® Liquid-Level Transmitters - M-Series Model MR Analog Transmitter
Operation and Installation Manual, Part No.: 550720 Revision K (EN) 02/2016
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MTS Sensors