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Installation and/or maintenance workers are responsible for installing, using and maintaining
instruments according to safety regulations for the specific application.
Installation and/or maintenance workers must read this manual and scrupulously follow all of
the instructions in it and in its attachments.
GEFRAN will not be liable for damage to persons and/or property, or to the product itself, if the following terms
and conditions are disregarded.
In case of contact or inhalation of the fluid contained in the Melt sensor, follow the instructions on the
toxicology sheet for the related substance (please refer to Annex 1 - Hg Toxicological sheet).
Further, HW series melt sensors, are totally compatible with the European Directive RoHs on the
restriction of the use of certain hazardous substances in electrical and electronic equipment.
Melt sensors are made with "Filled" technology and contain a pressure transmission fluid. Low-compression
fluids such as diathermic oil (FDA and USDA approved), or mercury are used.
Fluid volumes depend on the mechanical structure of the sensor, and leaks can occur only if the contact
diaphragm is broken. Any other type of break will not cause emission to the environment.
Never transport store the sensors without the protective cap and without the original packaging. In particular,
as mercury is a hazardous material it must be disposed of in compliance with applicable law.
Gefran accepts its Melt sensors (defective or damaged by use) for disposal.
80636B_MAN_HMF - HWF_05-2022_ENG
9� Maintenance
9�1� Transport, storage and disposal
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