PRODUCTS & SERVICES
Stannah’s new passenger lift in
Predictive maintenance even
sync with timber framed buildings
in ATEX zones
Due to shrinkage and settlement
inherent in this timber framed
The innovative efector octavis
buildings, current lift structures were
bearing condition monitor from ifm
found to be too rigid which can mean
electronic is now available with ATEX
movement around the lift entrances of
equipment category 3D / 3G, and is
as much as 30mm on a five floor lift.
therefore suitable for zone 22 or
A solution was needed, and
zone 2 explosion-hazard areas.
Stannah Lifts Ltd eagerly took up the
These new versions are also rated at
challenge. They took their existing FX
IP69K, making them ideal for the
structure-supported lift and adapted it
wettest of applications.
to suit timber framed buildings,
Affordable sensors for condition
creating a new option in the FX range.
monitoring mean monitoring is no longer restricted to the
On old lift structure designs the
most critical bearings, and you won’t need extensive
landing doors were fixed directly to the
training in vibration frequency analysis.
steel structure, now on the new design
ifm electronic’s vibration monitor, efector octavis,
the landing entrance frames are fixed
detects rolling element bearing failures and shaft
directly to the inside face of the timber
imbalance conditions on critical plant equipment such as
shaft. This method allows the building
pumps, motors, mixers, compressors, fans and spindles.
to move independently of the lift structure preventing the
octavis is permanently mounted on plant equipment to
distortion between the building and the lift architrave frame
continuously monitor a machine’s operating condition
previously experienced. The new structure is supported by
through vibration analysis. octavis has the processing
contact with the internal walls of the lift shaft and slipper
capability to analyse a vibration signature and to
plates are used to allow the vertical movement of the
predict failures in advance by sending an alarm output
building to slide pass the fixed lift structure. This maintains
signal to a PLC or relay. This can optimise machine
the lift structure location within the lift shaft, allowing more
availability & plant up-time.
space at the top of the installed structure frame and
The efector octavis monitor incorporates an
prevents the building from settling on to the lift structure
accelerometer, analog-to-digital (A/D) converter, digital
frame. www.stannahpassengerlifts.co.uk
signal processor (DSP) and diagnostic electronics in a
compact 40x40 mm package. These electronic components
Predictive maintenance spread out
enable the monitor to gather, process and interpret
vibration data. www.ifm-electronic.co.uk
The innovative efector
octavis bearing condition
Keeping track of expensive
monitor from ifm electronic is
now available as a master unit,
technical gases
which can monitor up to four Due to popular demand the efector metris is now
separate locations. These new available in a version for technical gases. In all efector
versions make predictive metris is calibrated for three commonly-used gases, CO
2
,
maintenance efector octavis nitrogen, and argon.
even more cost effective. For ease of fitting the efector metris version for technical
The octavis central unit can gases comes pre-installed in a DN15 stainless steel tube.
also now be programmed via As with the earlier unit, the efector metris for technical
ethernet. The vibration pickups, gases still offers an analogue output or a pulsed output,
which can be up to 30m from with selectable switchpoints, and a display in the units if
the central diagnostic, are made in stainless steel with a your choice.
IP69K rating for arduous environments. ifm supplies one of the widest ranges of sensors for
Rolling element bearings are probably the common position and process
most element to be found on the shop floor. As both a control, complemented
load-bearing and moving component, their condition by a huge selection of
determines the efficiency of the machines, yet until now it connection possibilities,
was very costly to monitor their condition continuously. The from connecting cable to
efector octavis ifm electronic recognises, displays & signals AS-interface systems.
bearing condition. ifm is committed to
ifm electronic’s vibration monitor, efector octavis, working closely with its
detects rolling element bearing failures and shaft customers to develop
imbalance conditions on critical plant equipment such as products which precisely
pumps, motors, mixers, compressors, fans and spindles. match their needs, and
octavis is permanently mounted on plant equipment to the company provides
continuously monitor a machine’s operating condition expert, readily accessible
through vibration analysis. octavis has the processing technical support to help
capability to analyze a vibration signature and to predict users maximise the
failures in advance by sending an alarm output signal to a benefits they gain from
PLC or relay. This can optimise machine availability & plant ifm products.
up-time. www.ifm-electronic.co.uk www.ifm-electronic.co.uk
50| SUSTAINABLE FM | OCTOBER 2007
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