ULM–70
© Dinel, s.r.o.
25
It is forbidden to perform any modifications or interventions into the ULM–70 level
meter without manufacturer's approval. Potential repairs must be carried out by the
manufacturer or by a manufacturer authorized service organization only.
Installation, commissioning, operation and maintenance of the ULM–70 level meter has
to be carried out in accordance with this instruction manual; the provisions of regula
-
tions in force regarding the installation of electrical equipment have to be adhered to.
Installation in areas with potentially explosive atmospheres must be carried out in ac
-
cordance with standard EN 60079-14 (Electrical apparatus for explosive gas atmospheres
- Part 14: Electrical installations in hazardous areas other than mines) and respectively
in accordance with other standards that apply to a given area.
16 . SAFETY, PROTECTION, COMPATIBILITY AND EXPLOSION PROOF
The level meter ULM–70 is equipped with protection against reverse polarity and output cur
-
rent overload.
Protection against dangerous contact is secured by low safety voltage that complies with
EN 33 2000-4-41.
Electromagnetic compatibility according to EN 55022/B, EN 61326/Z1 and EN 61000-4-2 to 6.
Explosion proof of ULM–70Xi type complies with the following standards: EN 60079-0 : 2007;
EN 60079-11 : 2007 ; EN 60079-26 : 2007 and examined by FTZÚ-AO 210 Ostrava - Radvanice
certificate No.: FTZÚ 09 ATEX 0277X.
Special conditions for safe use ULM–70Xi:
The device is designed for connection to the isolating repeater IRU-420. When the other ap
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proved supply unit is used, whose output parameters satisfy above mentioned output param
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eters, it is necessary to have a galvanic separation or, if supply unit without galvanic separation
is used (Zener barriers), it is necessary provide potential equalization between sensor and point
of barrier earthing.
For application in zone 0 the present explosive atmospheres - mixture of air with flammable
gases, vapour or mists must comply: 0,8 bar < p < 1,1 bar. The device must be installed in such
a way, to prevent mechanical damage of sensor face. It is necessary carried out earthing by
screw which is placed on head of level meter.
17 .
U
se
,
MAniPULAtion
And
MAintenAnce
The level meter does not require any personnel for its operation. Follow-up displaying device is
used to inform the technological entity operating personnel on the measured substance level
height during the operation.
Maintenance of this equipment consists in verification of integrity of the level meter and of
the supply cable. Depending on the character of the substance measured, we recommend to
verify at least once per year the clarity of the ultrasound transducer emitting field and to clean
it, respectively. In case any visible defects are discovered, the manufacturer or reseller of this
equipment must be contacted immediately.
The device must be installed to prevent tensile overload rope electrode level meter.
The device must be installed in such a way, to prevent mechanical damage
of sensor face.
Summary of Contents for Dinel ULM-70
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