Rugged 4/20mA Loop powered indicators, Type nA, panel mounting

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  • Ex nA & Ex tc certification eliminates the need for Zener barriers and galvanic isolators.
  • Large non multiplexed displays, models with:
        4 digits: 15mm high
        5 digits: 11mm high + bargraph
  • Rugged stainless steel cases for use in Ex n, Ex e,
    Ex p and Ex t panel enclosures in Zones 2 & 22
  • -40°C to +70°C operation
  • Internal calibrator
  • Root extractor and lineariser
  • Tare function
  • Optional:
        Backlight - may be loop or separately powered
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BA307NE and BA327NE loop powered indicators have third party Ex nA and Ex tc certification allowing them to be installed in a Ex n, Ex e, Ex p or Ex t panel enclosure located in Zone 2 or 22 without the need for a barrier or galvanic isolator. They have rugged stainless steel cases and large high contrast displays with a wide viewing angle and can operate over a wide temperature range.

Both models can be supplied custom calibrated and labelled with scale and tag information for no additional charge.

Other loop powered indicators in this range include:


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




BA307NE 4/20mA Loop powered indicator# BA327NE 4/20mA Loop powered indicator
Mounting & Enclosure Panel
Protection Front IP66, rear IP20
Display 4 digits 15mm high 5 digits 11mm high + bargraph
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 IP20 -40°C ≤ Ta ≤ +70°C
International IECEx Gas - Ex nA ic IIC T5 Gc -40°C ≤ Ta ≤ +70°C
Dust - Ex tc IIIC T80°C Dc IP20 -40°C ≤ Ta ≤ +70°C
Alarms Yes
Backlight, which may be
loop or separately powered
Scalecard and tag/application marking (no charge) Yes




Datasheets PDF logodownload PDF logodownload
ATEX certificates PDF logodownload PDF logodownload
IECEx certificates PDF logodownload PDF logodownload
Ingress certificates PDF logodownload PDF logodownload
Instruction manuals PDF logodownload PDF logodownload
Application guides AG310 PDF logodownload PDF logodownload
Declarations of Conformity PDF logodownload PDF logodownload
CAD files ZIP logodownload ZIP logodownload

# Shown with optional backlight, separately powered.

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