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These safety instructions apply to the installation, operation, maintenance and repair of the equipment
1)
Install the equipment in compliance with applicable laws, rules and regulations, ordinances and standards.
2)
Be sure to follow the installation, operating, maintenance and servicing instructions given in the manuals
supplied.
The cover screws must be tighten to a torque of 2.5 ... 3.0Nm (PR6xxx/68S) and 2.0 ... 2.5Nm (PR6130/
3)
64Sx and PR6130/65), respectively.
4)
The external connecting cables must be installed in a protective tube and secured to prevent damage and
stress caused by strain. The cable glands must be secured to prevent them from working loose. The applied
cable glands shall be suitable for the application of the junction box.
5)
The gasket shall not be lost or damaged.
6)
Prior to opening the equipment, disconnect the power supply or make sure that there is no potentially
explosive atmosphere or any other explosion hazard in the surrounding area! Never connect or disconnect
cables while the power is on in a hazardous area! If the equipment does not operate properly, unplug it
immediately from line power (mains supply)!
7)
For corner load compensation wire wound resistors with a maximum resistance of 5.6ohms (P70 = 0.6W,
1%, size 0207; type MBB0207 or equivalent) shall be used. Remove the wire bridge in the corresponding line
to the load cell and solder in the compensating resistor. These corner load compensation resistors shall only
be changed by a suitably trained technician in a non-hazardous location.
8)
A transient protection device shall be set at a level not exceeding 140 % of the peak rated voltage value of
85V.
9)
All metal parts (housing, load cells) must be electrically connected to the terminal for the equipotential
bonding conductor (PA). The equipment operator is obligated to connect an earth cable with a gauge of at
least 4 mm² (cross section) and with a cable lug to the PA terminal located on the side of the housing. This
earth cable must be installed in such a way that it is protected against working loose and that it prevent
twisting of the earth connection. The low resistance of this connection to the PA busbar must be checked
when the system is installed at the intended place of use. For intrinsically safe circuits: The shielding of the
connecting cables may only be used for grounding when no impermissible difference in voltage is generated
and, if necessary, the shielding is able to conduct the equipotential current.
10) For use in Division 1, in zone 0 or in zone 20 the load cells and the output circuit of the evaluation unit to the
load cells must be intrinsically safe type of protection Ex ia. For use in zone 1 or in zone 21 the load cells and
the output circuit of the evaluation unit to the load cells must be intrinsically safe type of protection Ex ia or
Ex ib. Load cells type of protection Ex tb are suitable to be used in zone 21 and 22. For gas and dust group,
temperature code and maximum ratings see certificate of compliance.
11) For use in zone 2, 21 and 22 the load cells and the output circuit of the evaluation unit to the load cells do not
need to be intrinsically safe but must be suitable (certified) for use in these zones. For gas and dust group,
temperature code and maximum ratings see certificate of compliance.
12) Keep chemicals and other agents, which can corrode the housing seals and cable sheaths, away from the
equipment. These agents include oil, grease, benzene, acetone and ozone. If you are not sure about the
safety of a certain substance, please contact the manufacturer.
13) Use equipment only in the temperature ranges indicated. Avoid exposing the equipment to heat.
14) The terminal blocks are suitable for wire gauges 0.2sqmm .. 1.5sqmm (AWG 24 .. AWG 16). Secure the
wires by tighten to a torque of 0.5Nm.
15) The equipment operator is responsible for any non-Minebea Intec cables used.
16) Check the EX approval marking (particularly the group for gases and temperature class) on all equipment in
the hazardous area before operation to ensure that this equipment is permitted to be operated in this area.
17) At reasonable intervals, have your equipment installation checked for proper functioning and safety by a
trained and certified technician.
18) If your equipment needs to be repaired, use only genuine replacement parts supplied by the manufacturer!
19) Any tampering with the equipment by anyone, other than repair work done by authorized Minebea Intec
service technicians, will result in the loss of EX conformity and in the forfeiture of all claims under the
manufacturer's warranty. Only authorized specialists may open the equipment.
20) Modifications, including those to be carried out by Minebea Intec employees, may be permitted only after the
express written authorization has been obtained from Minebea Intec.
21) For application in environments with combustible dust, electrostatic charging of the plastic label shall be
avoided.
Datum
Name
Date
Erstellt
21.08.18
Schallhorn
Written by
Geprüft
21.08.18
Hiller
Reviewed by
Freigabe
21.08.18
Schallhorn
Released by
Material
.
Ausgabe / Revision
Änderung / Alteration
01
PA50180542
Benennung / Title
Safety Instructions (PR6130/6... nad PR6021/6...)
Zeichnungs-Nr. / Drawing number
36931-751-08
Maßstab /
Scale
1:1
Blatt
Sheet
Teildok. Nr./
von
Part doc. no.
592
of
1
1
Publicité
