Pepperl+Fuchs NVD-111 Manual page 31

Warning Device NVD-111
Commissioning
Switch setting ON – operating mode
The reaction time for detection of a fat layer is 24 hours (warning device in
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normal mode, green "SYSTEM OK" LED lights up). The device becomes
active only after the fat level sensor has remained in a fat layer undisturbed
for a period of 24 hours.
The reaction time for detection of water is 1 hour (warning device in alarm
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mode, red "FAT LAYER ALARM" LED lights up). The device becomes
active only after the fat level sensor has remained in water undisturbed for
a period of 1 hour.
Note!
Note that the "SYSTEM OK" LED light ups under the following conditions:
After switching on the warning device
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After switching the DIP switch from OFF to ON
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After pressing and holding the "ALARM RESET" button
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(approximately 3 to 4 seconds)
The device becomes active only after the fat level sensor has remained in a fat
layer undisturbed for a period of 24 hours.
The device uses the "FAT LAYER ALARM" LED to display the alarm
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status.
The device triggers an audible alarm where necessary.
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The device activates the relay.
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• The device uses the "FAT LAYER ALARM" LED to display the
alarm status.
• The device triggers an audible alarm where necessary.
• The device activates the relay.
• The "FAT LAYER ALARM" LED goes out.
• The "SYSTEM OK" LED flashes.
EN
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