4 Undertaking modernization
4.1 Step 1: Detector modernization
The following steps must be taken during each modernization:
1. For information about installing new detector bases FDB20x or FDB22x, see
chapter 'Base replacement [➙ 16]'
2. For information about configuring the detectors, see chapter 'Configuration of
detector type [➙ 17]'
3. For information about carrying out function tests for detectors, see chapter
'Test the detectors [➙ 18]'
Risk of explosion
● Work in potentially explosive areas may only be carried out by qualified
specialists or by specially instructed persons, in accordance with the national
Point detectors that can only be operated in collective mode are replaced with
multiple protocol detectors. The detector lines are still operated in collective mode.