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Products Hazardous areas & safety
Operators are
Protecting process, plant, personnel, and the environment
IECEx certified
The next generation System including Quad
800xA High Integrity safety configuration to
A product range from ASCO Numatics system has been released by allow end users to
that is already ATEX compliant for use ABB. The company claims that tailor their safety
in hazardous areas now has IECEx this SIL 3 rated Safety Integrated system solutions
Certification. This includes the ASCO System (SIS) provides the high- to specific process
Numatics Ex d, Ex mb and Ex ia ranges est level of integration of safety requirements.
of explosion proof operators for sole- and control currently on the Several new
noid valves for Zone 1. market. features designed
Combining the ATEX and IECEx The system provides protec- to augment safety
approvals provides machinery manu- tion of the process, plant, per- integrity are
facturers and OEMs with an extensive sonnel and the environment incorporated in
range of explosion proof operators for while optimising overall this version. It
valves, that can be used on equipment process efficiency and cost. uses embedded
for delivery and installation worldwide. This High Integrity system hardware and
End users also benefit from access to a leverages System 800xA’s software diversity
wider selection of products and common engineering tools, in the logic solver and I/O sub- alone safety system but can also
reduced costs for designing and main- human system interface, histo- system with diverse execution be integrated with the process
taining facilities that are replicated in rian, audit trail, asset and device paths to detect any potential control system, while maintain-
several countries. management applications to random failures. It includes ing physical separation of con-
The IECEx is a global certification improve the overall integrity additional SIL 3 libraries for trol and safety functions.
scheme based on the standards of the and reliability of process control shutdown applications. ABB
International Electrotechnical and SIS operations. The system was designed to T: 01480 475321 Enter 209
Commission. It is available up to and be able to operate as a stand- www.abb.com
ASCO Numatics
T: 01695 713600 Enter 210
www.asconumatics.co.uk
Humidity measurement in ATEX areas
Putting safety
Testo has introduced a humidity Testo
in pole position
transmitter for hazardous areas. T: 01420 544433 Enter 211
The Testo 6682 meets stringent www.testo.co.uk The Series 3731 explosion-proof valve
requirements for process moni- positioners, available from Samson
toring in the pharmaceutical, Controls, are said to offer reliable accura-
chemical and process technology cy, ease of operation and can be config-
industries. The transmitter ured on-site.
achieves an accuracy of -1%RH. They are housed in a rugged enclosure
The transmitter’s self-monitor- which, even if an explosive atmosphere
ing and early-warning system forms inside the enclosure and ignites,
Instrument housing
makes preventative maintenance will withstand the explosion and will also
possible, and the 6616 humidity prevent the passage of flames out to the
is explosion-proof
probe is easily replaced by hand. explosive surroundings.
These valve positioners have low
Trimec has introduced an Exd power consumption and can be config-
explosion-proof housing option,
In-line monitoring of gas flammability
ured on-site or by using HART commu-
which can be specified for its nication. A single rotary pushbutton is
range of field mounted flow A gas detector for measuring in- between 10 and 40mm, and the all that is required for start-up, and this
instruments. The housing is line gas applications without probe assembly is manufactured simple method of operation is still pos-
made from polyurethane coated sampling systems has been intro- from stainless steel and is posi- sible even in hazardous areas because
aluminium and meets industry duced by Extronics. The iLEL100 tioned in situ. This means the the shaft design of the rotary pushbutton
standards for ingress protection Probe monitors sample path is short and the through the housing is explosion-proof.
to IP65 and NEMA 4X for enclos- flammability probe is maintained at the The separate terminal compartment
ing indoor and outdoor elec- of a gas or process temperature, elimi- allows for direct cable entry or connec-
tronic instruments. solvent by nating the need for tion without spark barriers for cable
Operator interface is achieved direct insertion heated lines or con- conduit systems. An easy-to-read LCD
by four externally mounted push- into a process of densate devices. This can be rotated by 180˚, so data is
buttons, which enable non-inva- extraction exhaust also reduces clearly visible regardless of the valve’s
sive contact with the instrument duct, or alternatively to response mounting position.
using magnets. Users can view monitor for a range of times to a Samson Controls
and operate the desired program toxic gases. minimum, T: 01737 766391 Enter 214
without having to remove the To address what is considered which is www.samsoncontrols.co.uk
cover. The compact, lightweight to be an extractive system opera- important
housing is available as either a tor’s main concern, that of system in safety
surface mount, pipe-mount or blockage, the iLEL100 probe has applications. The
To find out more about
rack mount option. The ATEX been designed for simplicity with probe has been designed in
certified flame-proof housing can no pumps, no aspirators, no fil- accordance with the ATEX
hazardous area and
be used with battery totalisers ters, no narrow bore tubing and Directive, and is certified for use
safety products
and batch controllers. long sample lines, no heated line, in a Zone 1 environment. visit:
Trimec no coolers or condensate vessels. Extronics
T: 01444 417880 Enter 212 Narrow bore pipework was T: 01260 292651 Enter 213
www.trimec-europe.com replaced with pipe diameters www.extronics.com
16 JUNE 2009 Process & Control
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