Scale
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CAIS / CAW / CAAP
Revision
03
Released by
Reviewed by
Written by
1/8/2021
1/8/2021
1/6/2021
Date
T. Hiller
T. Hiller
Name
Material
Title
Alteration
543604
Drawing number
Safety instructions
65954-750-16 (EN)
Sheet
4
R. Koch
of
4
Th
e
co
py
in
g,
d
ist
rib
ut
io
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th
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el
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m
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of
it
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co
nt
en
ts
to
o
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s
w
ith
ou
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ed
a
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riz
at
io
n
is
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oh
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ite
d.
O
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nd
er
s
w
ill
be
h
el
d
lia
bl
e
fo
r t
he
p
ay
m
en
t o
f d
am
ag
es
. A
ll
rig
ht
s
re
se
rv
ed
in
th
e
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t o
f t
he
gr
an
t o
f a
p
at
en
t,
ut
ilit
y
m
od
el
o
r o
rn
am
en
ta
l
de
sig
n
re
gi
st
ra
tio
n.
A
ny
in
fo
rm
at
io
n
in
th
is
do
cu
m
en
t i
s
su
bj
ec
t t
o
ch
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ge
w
ith
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t n
ot
ice
a
nd
d
oe
s
no
t r
ep
re
se
nt
a
c
om
m
itm
en
t o
n
th
e
pa
rt
of
M
in
eb
ea
In
te
c
un
le
ss
le
ga
lly
p
re
sc
ib
ed
.
14.
During installation, take suitable steps to prevent stray electrical interference (e.g. due to magnetic fields).
Keep any voltage transients away from the equipment.
15.
The indicator (display unit of the complete equipment) should be installed so that there is only a low risk of
mechanical danger to the IP protection. The equipment’s IP protection is IP6x as per EN 60529 / IEC 60529.
The equipment is intended to be used in clean environments and must be handled carefully in accordance
with the IP protection.
16.
The power connection must be in accordance with the regulations applicable in the country of operation. A
correct power connection must be ensured. The power cord must be protected against damage and must be
properly connected to the supply voltage (100 – 240 VAC, ± 10%, 50-60 Hz) or to the 24 VDC (± 10%)
for option L8. The indicator / the complete equipment can be used in electrical circuits of up to 1500 A. Only
use the power cord in the potentially explosive atmosphere with a suitable and approved explosion-
protected plug.
17.
Avoid generating static electricity. Only use damp cloths to clean the equipment. This applies in particular
when using a dust cover. The operator assumes responsibility for preventing any risks caused by electrostatic
charging.
18.
If cables are connected subsequently, make sure that the connections are not corroded. The grounding
conductor of a power cord must be the same gauge as the current-carrying wires (N and L).
19.
All external cables (even cables between load cells and junction box) are only suitable for fixed installation
and must be laid fixed. Otherwise, use cable glands designed according to EN 60079-0 and rounded at an
angle of 75° minimum and a radius at least equal to one-quarter of the diameter of the cables, but without
exceeding 3 mm.
20.
Cables from third-party manufacturers (subject to the operator’s responsibility; test for suitability as per
Annex A of EN 60079-0). Follow the pin assignment. Pay attention to the wiring diagram. Remove
connections that are not required.
21.
Unused openings must be sealed using suitable cover caps (dummy plugs) in order to maintain the IP
protection. Do not remove while live.
22.
When using external equipment in zone 2 explosion-risk areas, observe the gas group and temperature
class. The outputs must include the Ex nA electrical circuits. For zone 22, observe the maximum surface
temperature and group.
23.
Chemicals that can attack housing gaskets and cable sheathings must be kept away from the equipment.
These include oil, grease, benzine, acetone, and ozone. If you are uncertain, contact the manufacturer.
24.
The installation must be checked for correct function and safety by a trained and qualified person at
appropriate intervals.
25.
If the installation does not operate properly, disconnect it from the supply voltage immediately and secure it
against further use.
26.
In the event of repair, only use original spare parts supplied by the manufacturer.
27.
Any modifications to the equipment (except by persons authorized by Minebea) cause loss of conformity for
use in zone 2 and zone 22 explosion-risk areas and invalidate all guarantee claims. Similarly, the equipment
may only be opened by qualified and authorized personnel.
28.
Modifications (including by Minebea personnel) are subject to written approval.
29.
These instructions are given in addition to those in the instruction manuals and do not release the operator
from their responsibilities for the installation, operation, and inspection of the equipment assembly in
compliance with the provisions valid in the country of use.
