9
4. SECURITY REQUIREMENTS
Prior to the first use, carefully read this User Manual. Use the device only as
intended.
Depending on the frame model, the HX5.EX-* scales can be used in:
•
zones 1 and 2 where there is a risk of explosion due to mixture of air with
vapour, mist or gas, classified as explosion group IIC, IIB and IIA and as
temperature class T1, T2, T3, T4.
•
zones 21 and 22 where there is a risk of explosion due to mixture of air
with dust, flammable fibres and volatile fuels, classified as explosion group
IIIC, IIIB and IIIA.
Not all frame models are intended for operation in dust
atmospheres. Diagram with areas of operation is presented
in the first section of this service manual
Explosion safety of ramps is ensured by:
•
Making frame mechanical design in accordance with the requirements
of PN-EN 80079-36:2016 Standard
Explosive atmospheres -- Part 36:
Non-electrical equipment for explosive atmospheres – Basic method and
requirements
.
•
Not exposing the frame to static electricity. Functional grounding cables
which level the potentials must always be connected to the marked
terminals. Disconnecting the functional grounding cables is forbidden.
Disconnecting potentials equalizing cable (e.g. when there is a need to
place the device elsewhere) is allowed only if there is no risk of explosive
atmosphere.
•
Adhering to this user manual guidelines.
