Model 268HS is the “Enhanced Version” of ABB 268 Safety-Critical gauge pressure transmitter with a maximum working pressure up to 21MPa, 3045psi.
This Safety instrument has been designed, developed and manufactured according to IEC61508/ISA S84.01 which covers the complete life cycle of the product. It comprises a reliable sensing system coupled with very latest digital technologies, providing large turn down ratio up to 100:1 and a 5-years stability. The user has a comprehensive choice of sensors and therefore can optimize total performance.
With a long-term stability, 268HS works within stated performance even in extreme ambient and process conditions. ABB configuration platform represent one of the most important key factor thanks to its intrinsic flexibility: users can configure the transmitter easily via a hand held terminal or PC software tool.
With TÜV SIL2 certification and applicable SIL3 (only for redundant configuration), the 268HS represents the smartest solution in Safety loop applications.
- Base accuracy: ±0.075%
- Stability: 0.15% of URL for 10 years
- Span limits 0.54 to 16000kPa; 2.14inH2O to 2320psi
- HART® communication – provides integration with HART® platforms
- SFF = 98,7%
- λDU = 11 FIT
- Hardware/Software redundancy with MTBF of over 100 years