Safety Instructions; Conformity To Standards; Technical Data - BACHOFEN Trimod Besta Mode D'emploi

Trimod Besta level switches – types A..., B...
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Information: Application hints and important information. To be followed for optimal function.
Attention: Requirements and prohibitions to prevent damages, especially to material and the environment.
Danger: Dangerous situation that can lead to injury and death if instructions are not followed.
1.

Safety instructions

The operating manual must be read and
understood before installation. If you are
uncertain on any point, please contact
Bachofen AG.
The electrical connection may only be carried
out by qualified personnel who have been
authorised by the operator.
The supply voltage may only be applied after
the cover has been closed.
Every Trimod Besta level switch must be
selected by qualified personnel in accordance
with the specifications stipulated by the
customer. These specifications must be kept
by the operator in a safe place, together with
the operating manual, the customer-specific
designation and the type number (see type
plate).
When you are using a Trimod Besta level switch in a safety application according to
IEC 61508 and IEC 61511, the safety manual must be taken into consideration before
installing and commissioning the switch. The safety manual lists the restrictions and limitations of the
IEC 61508 certification of the Trimod Besta level switches.
The safety manual can be downloaded from http://www.trimodbesta.com/downloads/
2.

Conformity to standards

Level switches type A..., B... are in accordance with the standards:
EN 61010-1:2010, EN 61058-1:2002/A2:2008, IEC 61508:2010 (Safety Integrity Level)
3.

Technical data

Safety Integrity Level (SIL)
Types A... and B...
Types AA... and BB...
Switching power in AC
Type A...
5 A 250 VAC
www.trimodbesta.com
SIL 1 (SIL 3 capable)
SIL 2 (SIL 3 capable)
1)
Type B...
1)
gold plated and intended for use in intrinsically safe
5 A 250 VAC
circuits. Though the max. rating can be as per table,
please be aware, that the gold plating will be
permanently damaged when used for values greater
than applicable for intrinsically safe circuits.
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Operating Instruction – English
In the event of any deviation of the physical
quantities (pressure, temperature, density, etc.)
from the original specification, the suitability of
the level controller must be checked again by
qualified personnel or by the manufacturer with
regard to the new specifications.
Process vessels / float chambers must be
brought to atmospheric pressure before work is
carried out and must be appropriately vented.
The float and flange module must be included
in the regular plant pressure tests.
The devices may, under no circumstances, be
used as a support aid or as a security fixture
for equipment structures or for persons.
Microswitches of the switch module type B... are
LTB002X │ 2020.06