Pepperl+Fuchs NVD-111, Manual

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Warning Device NVD-111
Operation
EN
5.3 Function Testing
Fat level sensors
Checking the normal status
Checking the normal status for fat level sensor KVF-F
1. Switch DIP switch 1 to position OFF.
2. Remove the sensor from the grease interceptor.
3. Wash and dry the sensor.
4. Hold the sensor in your hand (no gloves). Only touch the upper and lower
metal section ( see Figure 2.3 on page 9) or
5. Immerse the sensor in water.
The green "SYSTEM OK" LED on the warning device flashes or lights up.
Checking the normal status for fat level sensor FAU-104
1. Switch DIP switch 1 to position OFF.
2. Remove the sensor from the grease interceptor.
3. Wash and dry the sensor.
4. Immerse the sensor in water.
The green
“
SYSTEM OK
”
LED flashes or lights on the warning device.
Checking the alarm status
Checking the alarm situation for fat level sensors
1. Switch DIP switch 1 to position OFF.
2. Suspend the KVF-F or FAU-104 fat level sensor freely in air.
The red
“
FAT LAYER ALARM
”
LED lights and, if applicable, an acoustic
signal sounds.
Overflow sensor
Checking the normal status
Suspend the sensor freely in air.
The green
“
SYSTEM OK
”
LED lights on the warning device.
Checking the alarm situation
1. Hold the sensor in your hand (no gloves). Only touch the upper and lower
metal section ( see Figure 2.3 on page 9) or
2. Immerse the sensor in water.
The red
“
OVERFLOW ALARM
”
LED lights and, if applicable, an acoustic
signal sounds.