Rugged 4/20mA Loop powered indicators, Ex ec and Ex tc

Features:

Ex ec & Ex tc certification eliminates the need for Zener barriers and galvanic isolators.
Large non multiplexed displays, models with:
4 digits: 15mm high
5 digits: 12.7mm high + bargraph
Rugged Stainless Steel cases for use in Ex e, Ex p and Ex t panel enclosures in Zones 2 & 22.
Internal calibrator
Root extractor and lineariser
Tare function
Optional:
Backlight - may be loop or separately powered
Alarms

Product downloads

Display options

Product dimensions

Ex ec Application guide AG321

Product details
These loop powered indicators have third party Ex ec and Ex tc certification allowing them to be installed in a Ex e, Ex p or Ex t panel enclosure located in Zone 2 or 22, without the need for a barrier or galvanic isolator, and without invalidating the panel enclosures certification. Both models have rugged Stainless Steel cases and large high contrast displays with a wide viewing angle and operating 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.

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

Model	BA307SE	BA327SE
	#
Mounting & Enclosure	Panel
Protection	Front IP66, rear IP20
Display	4 digits 15mm high	5 digits 12.7mm high + bargraph
Certification
International IECEx	*Gas -* Ex ec ic IIC T5 Gc Increased safety Ex ec *Dust -* Ex ic tc IIIC T80°C Dc Protection by enclosure Ex tc -40°C ≤ Ta ≤ +70°C Cert. No. IECEx ITS 22.0023X
Europe ATEX	*Gas -* Group II Category 3G Ex ec ic IIC T5 Gc Increased safety Ex ec *Dust -* Group II Category 3D Ex ic tc IIIC T80°C Dc Protection by enclosure Ex tc -40°C ≤ Ta ≤ +70°C Cert No. ITS-1 22 ATEX 34494X R.O
UK UKEX	*Gas -* Group II Category 3G Ex ec ic IIC T5 Gc Increased safety Ex ec *Dust -* Group II Category 3D Ex ic tc IIIC T80°C Dc Protection by enclosure Ex tc -40°C ≤ Ta ≤ +70°C Cert No. ITS 22 UKEX 0609X
USA ETL	*Gas -* Class I Zone 2 AEx ec ic IIC T5 Gc Increased safety Ex ec *Dust -* Zone 22 AEx ic tc IIIC T85ºC Dc Protection by enclosure Ex tc Class I Div 2 Groups A, B, C, D Class II Div 2 Groups F, G Class III Div 2 -40ºC ≤ Ta ≤ +70ºC Authorisation to Mark 104724586LHD-001
Canada cETL	*Gas -* Ex ec ic IIC T5 Gc Increased safety Ex ec *Dust -* Ex ic tc IIIC T85ºC Dc Protection by enclosure Ex tc Class I Div 2 Groups A, B, C, D Class II Div 2 Groups F, G Class III Div 2 -40ºC ≤ Ta ≤ +70ºC Authorisation to Mark 104724586LHD-001
Optional
Alarms	Yes
Backlight, which may be loop or separately powered	Yes
Scalecard and tag/application marking (no charge)	Yes