N93-601-00 Issue 1
Page 20 of 25 © Protec Fire Detection PLC 2015
6.7
Cloud Chamber LED fault
The unit has detected that insufficient light is being received at the photodiode.
User Action
Contact a Protec operative or a Protec distributor.
6.8
Water fill fault
The unit has detected that the water fill value level reading out of range.
User Action
Contact a Protec operative or a Protec distributor.
6.9
Sample
The unit has detected that the cloud chamber sample route is blocked. This means that the unit is not
receiving a sample.
User Action
Contact a Protec operative or a Protec distributor.
6.10 Purge
The unit has detected that the purge path is blocked. This means that the unit is not purging correctly.
User Action
Contact a Protec operative or a Protec distributor.
6.11 High Optical Background
The optical analogue value has increased outside the operation limitation range. The Scatter Chamber
Detector (SCD) is a calibrated device therefore disassembling the unit will void the calibration.
User Action
Contact a Protec operative or a Protec distributor.
6.12 Corrupt Settings
Internal settings are outside the expected values.
User Action
Contact a Protec operative or a Protec distributor.
6.13 Incomplete Manufacture
The manufacturing data has not been fully entered and saved.
User Action
Contact a Protec operative or a Protec distributor.
6.14 Low supply
The unit has detected that the incoming DC power to the unit is too low (less than approx. 19V
DC
).
User Action
Contact a Protec operative or a Protec distributor.