User Guide

BA494G GRP panel mounting kit secures eld
mounting instrument into a panel aperture
and provides IP66 seal between front and
rear of the panel.   Not certied for eld
mountinginstrumentswithan‘NG’sufx.
EP
TAG NUMBER SCALE
Joint between instrument
and panel has IP66 seal
BA494G
Fig 3 BA494G Sealed panel mounting kit
Inadditiontothe‘G’sufxIntrinsicallysafeeldmounting
models, ‘E’ sufx intrinsically safe Rate Totalisers are
also available.  The ‘E’ sufx models have a separate
eldterminalenclosureandthreetappedM20x1.5cable
entries. These models have display backlights, dual
alarms and isolated pulse and 4/20mA outputs.
2.1.2 Panel mounting
Panel mounting Rate Totalisers are available in 96 x 48mm
and144x72mmglassloadedNoryl(modiedPPE)DIN
enclosures with toughened scratch resistant glass display
windows.Theenclosure sizedepends uponthedisplay
sizeandthenumberofpulseinputs.Bothenclosureshave
IP66 front of panel ingress protection, and when correctly
installed provide an IP66 seal between the instrument and
the instrument panel.
The ingress protection of the enclosures have been
independently assessed at temperatures between -40°C
and +70°C by a third party UKAS accredited test house.
TheresultingtestcerticateisshownontheBEKAwebsite.
The instrument’s units of measurement can be marked onto
a slide-in scale card clearly visible at the right hand side of
thedisplay.Thescalecardcanbettedwithoutopening
the instrument enclosure or removing the Rate Totaliser
fromtheinstrumentpanel.Although easytocongure
on-site, Rate Totalisers can be supplied congured with
the scale card printed with customer specied units of
measurement for no additional charge.
For panel mounting applications in marine environments,
or where the front of the instrument is likely to be impacted,
single input rugged models are available in a 316 stainless
steelenclosure.Thesemodels,whichareidentiedbyan
‘-SS’modelnumbersufx,haveidenticalfeaturesasthe
other models including a slide-in scale card.
The enclosure has IP66 front of panel ingress protection,
and when correctly installed provide an IP66 seal between
the instrument and the instrument panel. The ingress
protection of the enclosure has been independently
assessed at temperatures between -40°C and +70°C by a
third party UKAS accredited test house. The resulting test
certicateisshownontheBEKAwebsite.
IntrinsicallysafeRateTotaliserswithan‘-SS’sufxhavebeen
certiedforinstallationinExeandExpenclosureswithout
invalidatingthecertication ofthe panelenclosure in which
they are mounted at temperatures between -40°C and +60°C.
For applications in Zone 2 or 22 without the need for Zener
barriers or galvanic isolators, the BA337NE Rate Totaliser
has Ex nA non-sparking and Ex tc dust ignition protection
by enclosure. Please see BEKA Application Guide AG310
for more information on how to install this Rate Totaliser.
The rear of panel ingress protection of all 96 x 48mm and
105 x 60mm rugged stainless steel Rate Totalisers can
be increased to IP66 with a BA495 rear cover sealing
kit. Manufactured from 316 stainless steel the cover
incorporates two M20 entries for cable glands, allowing
these Rate Totalisers to be installed in open panels.
Scale
card
P E
Rear cover
2 x M20
cable entries
Fig 4 BA495 rear cover
2.2 Location
Having decided how the Rate Totaliser is to be mounted,
the location of the installation will help to determine the
required model.
2.2.1 General purpose application
If the Rate Totaliser is to be installed in an area which does not
haveaammablegasorcombustibledusthazard,oneofthe
following general purpose Rate Totalisers should be selected.
Field mounting see Table 1
BA534G 1 input
BA584G 2 input
Panel mounting models are available in two alternative DIN
enclosuresizesplusaruggedimpactresistantinstrument
in a 316 stainless steel enclosure.
Panel mounting see Table 2
BA537E 1 input 96 x 48mm
BA538E 1 input 144 x 72mm
BA537E-SS 1 input Rugged 105 x 60mm
BA588E 2 input 144 x 72mm
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