4/20mA Loop powered indicators, Type nA, field mounting

Loop powered indicators

Features: 

  • To be discontinued, ATEX Ex nA certification will be de-harmonised in 2022, alternatives are BA304SG & BA324SG.
  • Ex nA and Ex tc certification
  • Installation in Zone 2 or 22 without barriers or isolators
  • Large non multiplexed displays, models with:
  • 4 digits: 34mm high
    5 digits: 29mm high + bargraph
  • IP66 GRP enclosure
  • 'E' models have separate terminal compartment
  • -40°C to +70°C operation
  • Internal calibrator
  • Root extractor and lineariser
  • Tare function
  • Optional:
  • Backlight - may be loop or separately powered
    Alarms
    Escutcheon scale and tag labelling
    Etched Stainless Steel legend plate
IECEx logoEX logoETL logoCCOE PESO logo

Product details
These fourth generation Ex nA and Ex tc 4/20mA loop powered indicators have large high contrast displays with a very wide viewing angle. Operating over an extended temperature range they contain many standard features previously only available as options. Extensive thermal, impact and vibration testing provides maximum reliability supported by a three year guarantee.

No additional charge is made for factory calibration or for scale card or escutcheon marking, although the indicators can easily be recalibrated on-site.

To select the model and options for your application please refer to the following table.

To select the model for your application please refer to the following table.

Model BA304NE BA324NE BA304NG BA324NG
BA304NE  BA324NE # BA304NG BA324NG *
Mounting &
Enclosure
Field
141 x 212
Field
122 x 120
Separate
terminal
compartment
Yes No
Protection Front IP66
Display 4 digits
34mm high
5 digits
29mm high
+ bargraph
4 digits
34mm high
5 digits
29mm high
+ bargraph
Certification
International
IECEx
Gas - Ex nA ic IIC T5 Gc -40°C ≤ Ta ≤ +70°C
Dust - Ex tc IIIC T80°C Dc IP66 -40°C ≤ Ta ≤ +70°C
Europe
ATEX
Gas - Group II Category 3G Ex nA ic IIC T5 Gc -40°C ≤ Ta ≤ +70°C
Dust - Group II Category 3D Ex tc IIIC T80°C Dc IP66 -40°C ≤ Ta ≤ +70°C
USA ETL
N/A Class I, Zone 2, AEx nA ic IIC T5 Gc
Zone 22, AEx ic tc IIIC T80°C Dc
-40°C ≤ Ta ≤ 60°C
Canada ETL
N/A Ex nA ic IIC T5 Gc: Ex n IIC T5 Gc
Ex ic tc IIIC T80°C Dc
-40°C ≤ Ta ≤ 60°C
India
CCOE/PESO
Gas - Ex nA ic IIC T5 Gc -40°C ≤ Ta ≤ +70°C
Dust - Ex tc IIIC T80°C Dc IP66 -40°C ≤ Ta ≤ +70°C
Optional
Alarms Yes
Backlight,
which may
be loop or
separately
powered
Yes
External
push buttons
Yes Standard
Escutcheon
scale and tag
labelling
(no charge)
Yes Yes
Slide-in
Etched stainless
steel legend plate
Yes
Model

Mounting &
Enclosure
Separate
terminal
compartment
Protection
Display
Downloads BA304NE BA324NE BA304NG BA324NG
Datasheets PDFDownload PDFDownload
PDFDownload
PDFDownload
IECEx
certificates
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ATEX
certificates
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ETL 
certificates
N/A N/A PDFDownload PDFDownload
CCOE/PESO
certificates
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Ingress
certificates
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Instruction
manuals
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Abbreviated
manuals
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Application
guide
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Declarations
of Conformity
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CAD files PDFDownload PDFDownload PDFDownload PDFDownload

# Shown with optional external push buttons and backlight, separately powered.
* Shown with optional backlight, separately powered.