Safety Precautions
2
Blatt
Sheet
2
von
of
Maßstab /
Scale
1:1
Ausgabe / Revision
02
Freigabe
Released by
Geprüft
Reviewed by
Erstellt
Written by
03.12.18
03.12.18
29.11.18
Datum
Date
Schallhorn
Hiller
Schallhorn
Name
Material
65835-790-16
Benennung / Title
Änderung / Alteration
PA50181110
Zeichnungs-Nr. / Drawing number
.
Th
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co
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d
is
trib
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nt
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to
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er
s
w
it
h
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pre
ss
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au
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oriz
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ion
is
p
ro
h
ibit
ed.
O
ffen
de
rs
w
ill
be
h
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th
e
pa
ym
en
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of
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age
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Al
l rig
ht
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erv
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in
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of t
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of
a
pat
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it
y m
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orn
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egis
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Weit
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V
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tigu
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die
ses
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ok
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Verw
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M
it
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In
hal
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Zu
w
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h
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fl
ic
h
ten
zu
Sc
h
ad
en
ser
sa
tz.
Al
le
R
ec
ht
e
fü
r
de
n
Fal
l
der
Pat
en
t-
, G
ebra
u
ch
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es
ch
m
ack
sm
u
st
erei
nt
rag
un
g v
orb
eh
alt
en
.
---
Teil Dok Nr./
Part Doc No.
These safety instructions apply to the installation, use, maintenance and repair of the appliance.
The numbers shown in brackets refer to the numbered positions on page 1.
1. The power supply unit (1), cable junction box (2) and the digital load cell (3) may only be used in this constellation in
Zone 2 and Zone 22 and not as portable devices.
2. Installation should be performed by an authorized specialist, in accordance with applicable laws, rules and
regulations, ordinances and standards. Particular attention should be paid to the European Standards EN 60079-14
3. It is essential that the recommendations on the installation, use, maintenance and repair contained in the manuals
supplied are complied with for all equipment.
4. Only use equipment in the temperature ranges indicated. Avoid exposure to inadmissible sources of heat or cold,
solar radiation or vibrations. Install the devices in such a way that heat can be sufficiently dissipated on all sides and
that external heat sources are located far enough away from the power supply.
5. Protect the mains connecting cable (4) from damage and connect it correctly to the mains power supply (100
–
240
VAC). The power supply is approved for circuits up to 1,500 A. Only use the mains connecting cable in the hazardous area
with a suitable and approved explosion-protected plug. Alternatively: Protect connector from being pulled out or directly
wire in the cable; if directly wired-in, provide adequate emergency stop option.
6. If not supplied, the mains connection cable (4), supply cable (5) and data cable (6) used must be suitable with
respect to the relevant zones they are used in, the manner in which they are laid and their relevant mechanical loads.
Cables sourced from other manufacturers are the operator's responsibility.
7. The ATEX-certified cable glands (7) and (8) are only suitable for fixed installation when used in potentially explosive
atmospheres, meaning that the equipment installer has to fit the cable behind the cable gland (e.g. using a cable clip).
These cable glands can be replaced by those which are ATEX-certified and are suitable for flexibly installed cable.
8. Any connections that are not being used must be sealed in such a way as to assure ingress protection (IP)
(e.g. using ATEX-certified locking screws).
9. Any metal parts (casing) must be DC coupled to the potential equalization. To do so, the operator of the system must
connect a conductor with a cross-section of at least 4 mm
2
in a suitable place using adequate mounting material (screws).
During on-site installation, check if this connection to the equipotential bonding conductor is of low
resistance. The equipment operator shall be responsible for preventing any risks caused by static electricity.
10. Before opening the instruments, switch off the supply voltage, or make sure that the area is not potentially explosive.
Do not connect or disconnect any live cables inside an explosion-risk area.
11. If the installation does not operate properly, disconnect it from the supply voltage immediately.
12. During installation, take suitable measures to prevent stray electrical interference (e.g. due to magnetic fields).
13. Chemicals that can attack housing gaskets and cable sheathings must be kept away from the instrument.
These include oil, vegetable and animal fats, petrol, chlorinated and aromatic solvents, lye and acids, acetone
and ozone. If you are uncertain, contact the manufacturer.
14. The installation must be checked for correct function and safety by a trained and qualified person at appropriate
intervals.
15. In the event of repair, use only original spare parts supplied by the manufacturer.
16. Any modifications to the instrument (except by persons authorized by Minebea Intec) cause loss of conformity for use
in Zone 2 and Zone 22 explosion-risk areas and invalidate all guarantee claims. Similarly, the instrument may only be
opened by qualified and authorized persons.
17. Modifications (including by Minebea Intec personnel) are subject to written approval.
18. Any devices used in Zone 22 must be regularly cleared of dust. Dust layers of more than 5 mm are not permitted.
19. These instructions are given in addition to those in the instruction manuals and do not release the operator from his
responsibilities for the installation, operation and inspection of the equipment assembly in compliance with the valid
standards, directives, ordinances and laws.
Summary of Contents for PR 6024/68S
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