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2. Check the supply voltage
- Connect the flame detector to the supply voltage
- Check the supply voltage at the 1st clamping point behind the flame detector
between the red and the blue connection wire for compliance with the voltage
limits (in particular the lower limit)
- Repeat test with simulated flame
- If the supply voltage is too low, this may be due to excessive lengths of the
supply lines which core sections are too small, apart from other faults.