RADWAG PUE HX5.EX, User Manual

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14. INSTALLER INSTRUCTION
PUE HX5.EX-* weighing indicator can be used as a base for designing load
cell scales. The load cell scales are modular devices and they comprise:
•
PUE HX5.EX-* weighing indicator.
•
Certified, for conformity with Directive 2014/34/EU and IECEx certification
requirements, PM01.EX-1 power supply, placed in hazardous area,
or PM01.EX-2 power supply, placed outside hazardous area.
•
IM01.EX communication module II (2)G [Ex ib] IIC Gb and
II (2)D [Ex ib] IIIC Db, placed outside hazardous area.
•
Load cell(s) certified for conformity with Directive 2014/34/EU and IECEx
certification requirements, intended for operation in hazardous area, and
characterized with parameters that meet requirements regarding intrinsic
safety.
•
Mechanical design compliant with requirements for non-electrical parts
intended for use in hazardous areas (potentially explosive atmospheres).
Manufacturer of such device/set is obliged to carry out
analysis of the complete device/set in order to confirm
compliance with valid standards.
Indicator's components selection is conditioned by level
of protection against explosion of the whole set.
14.1. Connecting Load Cells - PLATFORM Analog Interface
For designing scales based on PUE HX5.EX-* indicator, exclusively load cells
intended for operation in hazardous area, issued with respective explosion
safety certification, and meeting intrinsic safety requirements specified in this
user manual, are used.
Procedure:
1. Remove security seals and evenly undo bolts (two turns) fixing the cover
(10).
2. Remove the cover and undo gland's cup nut (8).
3. Lead the load cell's cable (of the weighing platform) (1) through the cable
gland (2) signed as PLATFORM.
4. Take manufacturer-delivered ferrite core (3) and put it onto the cable.
5. Strip the cable (about 20cm).
6. Wind cable wires onto the manufacturer-delivered ferrite toroid bead (5).
DO NOT WIND THE CABLE SHIELD
.
7. Fit heat-shrink tubing (9) onto both beads, make it shrink.