The liquid warning detectors WWD-series is used to
sense moisture and water.
The liquid warning detectors WWD-series senses the change in conductivity when moisture or water is in contact with the sensing pins or when moisture or water is in contact with the external alarm band WST.
The sensing pins are located under the liquid warning detectors base unit for direct mounting on the floor.
The liquid warning detectors WWD-series can be mounted on the wall and the external alarm band WST can be connected on a terminal inside the WWD housing.
The liquid warning detectors WWD-series can be powered with 12 -30 Vac/dc and have a change over relay for passing the alarm on to a supervisory system.
The liquid warning detectors WWD-series is made by placing a wet finger at the sensing pins under the WWD unit.
Testing of the liquid warning detectors WWD-series together with the alarm band WST is made by placing a wet finger at the end of the wires of the alarm band WST.
The LED in the front on the liquid warning detectors WWD-series will light and the relay output will be activated.
The WWD 103N have also a buzzer that will sound.
When moisture or water disapear, the unit will be reset by automatic.
- Mounting
- WWD senses the change in conductivity
- Power supply 12-30 Vac/dc
- Relay output
- Buzzer (only WWD 103N)
- Functions via jumpers selections:
- On wall with external alarm band WST
- Direct on floor
(WWD have 2 sensing pins under the housing)
when moisture or water is in contact with the sensing pins and when moisture or water is in contact with the external alarm band WST
- Memory function.
- Fixed or pulse signal on buzzer (only WWD 103N).
- Normally Open or Normally Closed relay function.
- Sensitivity (normal or reduced).
Download datasheet
Microprocessor Based Liquid Warning Detectors WWD-series.pdf
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