ABB's Safety Transmitters
Model 268 pressure transmitters meet TÜV SIL2 specifications for safety loop applications. Variations are available for measuring differential, gauge and absolute pressures with or without remote (isolating) seals. The transmitters have a TÜV-certified (Hardware Fault Tolerant) equal to 1, which means they can function in dangerous situations without a serious hardware error. Span limits range from 0.8 in. H2O to 2320 psi and 4 mm Hg to 2320 psia.