Dini Argeo TPWX2GDI, TPW20IEX2GD, TPWX2GD Safety Instruction
TPWX_
05_17.12
_EN_U
ATEX SAFETY INSTRUCTION
TPWX2GD,TPWX2GDI,TPW20IEX2GD
INDEX
1. INTRODUCTION ................................................................................................................................................................. 3
2. SYMBOLS ........................................................................................................................................................................... 3
3. !! WARNINGS !! .................................................................................................................................................................. 4
4. DESCRIPTION OF THE SYSTEM ...................................................................................................................................... 6
5. SAFETY DATA / PLATE PARAMETERS ........................................................................................................................... 6
6. MARKINGS ......................................................................................................................................................................... 7
7. INSTRUCTIONS FOR INSTALLATION AND MAINTENANCE IN HAZARDOUS ZONE ................................................... 7
7.1 INSTALLATION EXAMPLE............................................................................................................................................ 8
8. DIMENSIONS (MM) ............................................................................................................................................................ 9
9. OPERATING INSTRUCTIONS ......................................................................................................................................... 10
10. REFERENCE DRAWINGS.............................................................................................................................................. 11
11. INSTRUMENT POWER SUPPLY ................................................................................................................................... 13
11.1 BATTERY CHARGING ............................................................................................................................................. 13
11.2 BATTERY CONNECTION TO RECHARGER AND WEIGHT INDICATOR .............................................................. 13
11.3 BATTERY INSTALLATION ....................................................................................................................................... 16
EU DECLARATION OF CONFORMITY ............................................................................................................................... 17
WARRANTY ......................................................................................................................................................................... 18
TPWX2GD/TPWX2GDI/TPW20IEX2GD 2
"TECH.MAN.REF."
Means that
an advanced function is being described (therefore for the technical personnel) which will
1. INTRODUCTION
In thanking you for purchasing this pallet truck scale, we would like you to take into consideration some aspects of this
manual:
this manual gives all the information for the correct functioning and maintenance of the
TPWX2GD/TPWX2GDI/TPW20IEX2GD pallet truck which is an integral part of the machine.
all the information given here is what is available at the time of printing; the manufacturer reserves the right to make
changes to the product at any time without prior notice. It is advisable to verify if there are any updates.
the person responsible for the use of the TPWX2GD/TPWX2GDI/TPW20IEX2GD pallet truck must make sure that all
the existing safety norms in the country of use are respected and guarantee that the instrument is used in conformity
with the use for which it has been manufactured for.
Some functions written in the sections regarding the weight indicator might not be available, because these depend on
the type of weighing system that has been purchased.
This pallet truck is designed for lifting and transporting loads put on a pallet or containers placed on flat, level surfaces with
adequate resistance.
It is also fitted with an electronic weighing system made up of a DFWATEX multifunction digital indicator put on the column
and of 4 load cells rigidly fixed inside the forks.
The metallic structure parts are electrically connected together and grounded through a sliding metallic chain. With the
TPWRAS option (antistatic driving wheels), the metallic structure is grounded through the sliding metallic chain and through
the antistatic wheels
2. SYMBOLS
Below are shown the symbols used:
- in the manual to recall the attention of the reader.
- on the instrument to recall the attention of the user
!!WARNING!! This operation must be made by specialized personnel
The standards to which this manual refers are essential for its application. For dated standards, only the editions cited
apply. For undated standards, the latest editions apply (including any amendment).
CE CONFORMITY
NOTES WHICH PARTICULARLY CONCERN THE USE OF THE INSTRUMENT IN A HAZARDOUS
AREA
be further explained in the corresponding technical manual.
TPWX2GD/TPWX2GDI/TPW20IEX2GD 3
3. !! WARNINGS !!
For weighing objects made up of light metals (aluminium, magnesium and titanium or their alloys, excluding the alloys
with less than 10% of aluminium, the varnishes and coatings with less than 25% of aluminium in weight), the use of
stainless steel forks is necessary.
The use of the instrument in hazardous areas require a special attention and special precautions during the use and
maintenance
The instrument conforms for use in zones having precise features: do not install and use the instrument in environments
different than those provided for.
The installation, maintenance and repair of the instrument, must be made by qualified and authorized personnel and
with the approval of expert technicians.
The safety of the explosion-proof system is guaranteed only if the system is installed, used and taken care of following
the instructions given in this manual and in the technical manual (TECH.MAN.REF.).
Check that the pallet truck scale is in good operating conditions.
Only spare parts approved by Dini Argeo should be used.
Be very careful when using the instrument; any sparks could cause an explosion.
Avoid accumulations of dust. To avoid dust layers, the user must regularly clean the surface of the enclosure,
considering that the maximum thickness allowed is < 5mm.
WARNING! ELECTROSTATIC HAZARD, CLEAN ONLY WITH WET CLOTHS OR ANTISTATIC PRODUCT
Avoid accumulations of electrostatic charges; therefore, when using the instrument in a hazardous zone, the appropriate
work clothing must be used by the operator or the maintenance person.
Do not cover the instrument with coverings made by materials which could have electrostatic charge
Do not paint the system
It is forbidden to modify or repair the instrument with components not conforming to the certification; this action
compromises the intrinsic safety of the instrument (with a subsequent loss of the Ex approval) and the nullification of
the product warranty.
It is forbidden to connect the instrument to modules not provided for by the certification; this action compromises the
intrinsic safety of the instrument (with a subsequent loss of the Ex approval). Contact Dini Argeo srl for further
information.
Avoid direct sunlight.
NEVER load the scale beyond the maximum capacity shown on the weight indicator’s plate.
Avoid the use of oxidising substances (hydrogen peroxide).
TPWX2GD/TPWX2GDI/TPW20IEX2GD 4
Use just the provided for battery; Contact Dini Argeo srl for further information.
Do not open, repair or modify a defective battery; this operation causes the loss of its intrinsic safety. Dispose of the
defective batteries.
The TPWX2GD atex pallet truck is an atex assembly composed of the TPW atex mechanical part, the DFWATEX2GD
atex weighing indicator and the atex load cell.
The TPWX2GDI/TPW20IEX2GD atex pallet truck is an atex assembly composed of the TPWX2GDI atex mechanical
part, the DFWATEX2GD atex weighing indicator and the atex load cell.
Read and follow also the atex manuals of the other parts: DFWATEX2GD atex weight indicator manual and the atex
load cell manual.
This scale has been designed to only weigh on pallets
Load only when forks are in the lowest position.
To get the best weighing results, lift up the forks (after loaded) about 5-10 cm.
It is not allowed to use the brake for slowing down, but only, and exclusively, for parking the already stopped pallet truck.
Check daily the status of the bearings and the bushings of the cart wheels and if there are problems such as frictions,
strange noises, overheating, offsetting of the wheels, etc., do not use the cart and contact the reseller for its repair.
The cart is grounded with a chain, check daily the presence of the grounding chain of the cart. Check daily that the chain
is clean, so that it can make the contact for the grounding of the Pallet truck. Do not remove the chain. The grounding of
the pallet truck is also possible by using Anti-Static wheels.
In case of approved scale, the weighing has to be done on a EUR-EPAL 800x1200mm pallet (ref. Norms UIC 435-2 and
UIC 435-4).
Contact Dini Argeo srl for further information.
For information on the operating mode of the weigh indicator DFWATEX, see the operating mode manual’s of the
indicator DFW downloadable from the website www.diniargeo.com.
This manual has been prepared with the maximum care, but any advice for improvements is most welcome.
TPWX2GD/TPWX2GDI/TPW20IEX2GD 5
FIX THE LOAD ON THE PALLET, AS SHOWN IN THE DRAWING
4. DESCRIPTION of the SYSTEM
The Atex assemblies TPWX2GD/TPWX2GDI/TPW20IEX2GD are devices for hazardous areas having presence of gas
and/or inflammable dust, designed and made according to the ATEX 2014/34/EU directive, group II category 2GD
according to the
IEC/EN 60079-0, IEC/EN 60079-11, IEC/EN 60079-31, EN 1127-1, EN 13463-1 and EN 13463-5. The protection mode of
the electronic weighing terminal (DFWATEX2GD) is Ex ib [ib Gb] IIC T4 and Ex tb [ib Db] IIIC T197°C IP65.
The weighing terminal is made up of a metallic case, which contains the various intrinsically safe electronic circuits:
DFWATEX2GD terminal, stand alone application with IP68 protection (TPWX2GD);
The weighing terminal is fitted with a CPU, LCD display, membrane keyboard and separate power supply unit, made up of
a Ni-MH battery or a power adapter, which has a separate ATEX certification.
The terminal provides for a connection to load cells (strain gauges – simple apparatus or intrinsically safe load cells, which
have a separate ATEX certification) / digital signals / electronic level - simple apparatus. A fibre optic connection for the
interfacing of devices in a safe zone is also provided for.
The metallic structure parts are electrically connected and a sliding chain is provided for its grounding.
5. SAFETY DATA / PLATE PARAMETERS
The power supply of the Atex assemblies TPWX2GD/TPWX2GDI/TPW20IEX2GD is provided with battery (See the
“DFWATEX2GD” atex weight indicator manual):
DFWBP76ATEX battery pack, Ni-MH, Vn = 9,6 V, 7600 mAh
Intrinsically safe circuits
See the “DFWATEX2GD” Atex weight indicator manual.
TPWX2GD/TPWX2GDI/TPW20IEX2GD 6
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