RADWAG HX5.EX Manuale utente

HX5.EX

4-Load-Cell Scales with EX Frame

FRAME ASSEMBLY MANUAL

ITKM-003-01-08-19-EN

AUGUST 2019

PRECAUTIONS

Prior installing, using or maintaining the frame it is necessary to read

ITKU-101-02-12-18-EN user manual. Use the device only as intended.

The above user manual must be at a reach of the operator's hand in the course

of device operation.

Symbol marking sections that are extremely important for protection

against explosion.

The device must be applied in accordance with the intended use only.

Prior installation of the frame and start, it is necessary to analyse

whether the device complies with the usage requirements regarding

particular hazardous area.

In case of any sign of damage, it is necessary to stop using the device

immediately. The damaged component must be replaced or repaired

by RADWAG service immediately.

While installing the device, it is necessary to follow strictly this service

manual requirements. Not adhering to the requirements results with

loss of explosion safety.

The frame may be used as a component of device/set intended

for operation in hazardous area. Manufacturer of such device/set

is obliged to carry out analysis of the complete device/set in order

to confirm compliance with standards.

The frame must be connected to the same equalizing circuit as the

scale.

Do not apply protection shields.

Technical condition of the frame must be tested and inspected by

trained personnel, in accordance with this user manual, at least once

every three months, and in accordance with this user manual.

CONTENTS

1. INTENDED USE.............................................................................................................................................5

2. FRAME ASSEMBLY......................................................................................................................................6

3. WARRANTY CONDITIONS...........................................................................................................................8

4. SECURITY REQUIREMENTS........................................................................................................................9

1. INTENDED USE

Frames for HX5.EX… scales are intended for operation either inside or outside

the building. Avoid exposing them to aggressive chemical vapours and extreme

temperatures.

Frames for HX5.EX-tt.4.xx.C… scales are made of powder coated steel and

frames for HX5.EX-tt.4.xx.Hy/Z… scales are made of stainless steel.

The difference in used material influences their intended use in a specific

hazardous area:

•frames made of powder coated steel 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 IIB and IIA and as temperature class T1, T2,

T3, T4,

•frames made of stainless steel 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. It can also be used in 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.

Platform with frame

The frame may be used as a component of device/set intended

for operation in hazardous area. Intended use of the whole set

is determined by the component with the lowest explosion

protection. The set can be used in more restricted zones than

specified for the frame.

2. FRAME ASSEMBLY

Carry out frame assembly and connect the grounding when

there is no risk of explosive atmosphere occurrence.

•The scale and the frame must be unpacked in safe area.

•Prior transfer of the scale and the frame to its workplace, prepare cable

for grounding of the Zener diode barrier housing. The grounding cable

must be terminated with a ring enabling you to couple the cable to the

Zener diode barrier by means of M5 nut. Use toothed clamping washer

in order to keep the ring pressed tightly against the housing.

•The grounding cable must be yellow-green of 4 mm² diameter minimum.

•Prepare recess for the frame. The recess must be compliant with

the requirements of zones 1 and 2 of hazardous area. If there is a risk

of an explosive atmosphere occurrence due to mixture of air with vapour,

mist or gas heavier than air it is necessary to provide a way to remove the

explosive atmosphere from the recess, e.g. with use of exhaust ventilation.

•Permissible temperature range during scale operation is -10 °C ÷ +40 °C.

•The surface where the platform is to be placed has to transfer the load

of the weighing platform together with the load of an object placed on the

scales.

•Screw the tray to the frame.

•Embed the frame in the ground horizontally.

•Screw the grounding cable to the frame and the platform. Spots marked

with „ ” symbol are intended for the functional grounding cable.

•Insert the platform into the frame, place the platform feet into the holes in

the frame.

•Screw frame lid.

Hazardous areas are divided into zones and determined

in Appendix No. 1 of the Directive 99/92/WE.

The investor, building designer and user are responsible

for accessing and classification of hazardous area (recess

for the scale).

In order to prevent electrostatic charges accumulation it is

necessary to connect the frame, the platform and the

indicator to the same equalizing circuit. Spots marked with

„” symbol are intended for the functional grounding cable.

Not all frame models are intended for operation in dust

atmospheres. The list of areas of operation is presented in

the first section of this service manual.

Connect the grounding when there is no risk of explosive

atmosphere occurrence.

Frame grounding spot

1 – frame mechanical design

1.1- frame lid

2 – lock washer

3 – grounding terminal screw

4 –„ ” grounding cable connection spot

3. WARRANTY CONDITIONS

A. RADWAG feels obliged to repair or exchange all elements that appear

to be faulty by production or by construction.

B. Defining defects of unclear origin and means of their elimination can only

be realized with assistance of manufacturer and user representatives.

C. RADWAG does not bear any responsibility for damage or losses

resulting from misuse, or unauthorized use or servicing.

D. The warranty does not cover:

•mechanical damage caused by product exploitation other than

intended, damage of thermal and chemical origin, damage caused

by lightning, overvoltage in the power network or other random event,

•inappropriate cleaning habits.

E. Loss of warranty takes place if:

•a repair is carried out outside RADWAG authorized service point,

•service claims intrusion into construction by unauthorized people,

F. Contact with the central authorized service: +48 (48) 386 63 30.

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.

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