In order to ensure reliable performance, it is particularly important that OMD?s are properly installed, operated and maintained in accordance with the manufacturer?s instructions and guidelines. Given that they are components within key safety systems, as precautionary advice the manufacturer recommends replacing or refurbishing OMD?s which are more than 10 years old, even if they are functioning correctly at that time.

For systems with more than 10 detectors, it is recommended that additional detector head assemblies (53836-K272) are supplied.