MTL MTL5000 Series, Инструкция по эксплуатации

Страница: 6 / 46

1 INM5000-6 Jul 2010
WARNING
This manual describes the use and installation of safety
equipment. This equipment must be installed, operated
and maintained only by trained competent personnel and
in accordance with all appropriate international, national
and local standard codes of practice and site regulations
for intrinsically safe apparatus and in accordance with
the instructions contained here.
ATEX
If the country of installation is governed by the Essential Health and
Safety Requirements (Annex II) of the EU Directive 94/9/EC [the ATEX
Directive - safety of apparatus] then
MTL document INA5000 must
be consulted before installation.
CERTIFICATION DATA
The MTL web site http://www.mtl-inst.com contains documentation
regarding intrinsic safety certification for many locations around the
world. Consult this data for information relevant to your local certifying
authority.
REPAIR
These products MUST NOT be repaired . Faulty or damaged
products must be replaced with an equivalent certified product.
1 INTRODUCTION
This instruction manual explains how to install, connect, test and
maintain MTL5000 Series isolating interface units (isolators).
2 DESCRIPTION
MTL5000 Series isolators provide intrinsically safe (IS) communication
and signal conditioning for a wide range of hazardous-area devices.
Total ac and dc isolation exists between input, output and power supply
on separately powered units, and between input and output on loop-
powered units. No IS earth is required. DIN-rail mounting and plug-in
signal and power connectors simplify installation and maintenance.
Units are powered from a 20 to 35V dc supply, or, in some cases, from
the signal itself.
3 INSTALLATION
Mount all MTL5000 Series isolators on low-profile (7mm) or high-profile
(15mm) type T35 (top-hat) DIN-rail to EN50022, BS5584, DIN46277.
This is available from MTL, in 1 metre lengths (THR2 DIN rail). Install
isolators within the safe area unless they are enclosed in approved
flameproof, pressurised or purged enclosures and ensure that the local
environment is clean and free of dirt and dust. Note the ambient
temperature considerations of section 3.1.7.
It is recommended that, in normal practice, the DIN rail is earthed to
ensure personnel safety in the event of mains being put accidentally on
the rail.
3.1 Installing unenclosed isolators
On new installations, if isolators are mounted in several rows orcolumns,
mount alternate rows or columns so that units face in opposite directions.
This allows safe- and hazardous-area wiring looms to be shared.
See figure 3.1 for isolator dimensions.
INM5000-6
July 2010
Note : All MTL products are tested for electrical safety to EN 61010 to
comply with the EC Low Voltage Directive
MTL5000 Series Interface units
Figure 1.1: MTL5000 Series isolators
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com