Instructions for water leakage sensor
Didactum has developed this IP-rated water sensor specifically for early detection of leaks from moisture and water-based liquids. This effectively reduces the consequences of (undetected) water damage.
This Didactum leak sensor also detects deionized water and battery acid (from ruptured UPS batteries). The IP water sensor is compatible with all measurement and monitoring systems.
How the water sensor works
As soon as the metal cores of the water sensor come into contact with moisture, condensation, or water, you and your colleagues will be alerted by the Didactum monitoring system via email, SMS (via GSM modem), or an optional alarm siren with flashing light function.
In addition, in the event of a leak or other incident, SNMP traps can be sent to SCADA systems, DCIM software, and network management systems. MIB files and Nagios plugins are included with the Ethernet-based measurement and monitoring systems. The water ingress or leak can also be forwarded to the building automation system or alarm system via an actuator function.
Choosing the installation location for the water detection sensor
The IP-enabled water leak detector is typically installed on the floor of IT racks/server cabinets. The raised floor of server rooms/data centers is also a suitable installation location. Furthermore, a water leak detector should be installed on the floor of air conditioning units/air conditioning systems.
Important notes from the technical editors:
To detect a leak, both metal pins of the single-point water leak detector must be in contact with the leaking liquid simultaneously (!!). This closes the contact. Always use the mounting bracket included in the package to secure the sensor. If the single-point water leak detector is not mounted correctly (unsecured/loose mounting), it will not function. A functional test should always be performed after installation. For this, use a damp cloth, for example.
Connecting the water sensor to the Ethernet-based monitoring system
The RJ-11 connector of the water sensor is simply plugged into a free sensor port of the Didactum measurement and alarm system. The water sensor is automatically recognized via auto-identification and displayed in the German-language web interface of the monitoring system.
Please do not use an open flame or cigarette smoke to test the smoke detector!
There is a small opening on the top of the smoke detector for testing purposes.
Test the functionality of the smoke detector using the tip of a ballpoint pen.
If triggered, the built-in LED will flash brightly.
The test alarm can be deactivated by disconnecting the sensor cable or directly in the web interface of the LAN-based Didactum IT monitoring system.
Mounting on a wall
There is a small, round protrusion on the back of the water sensor. This protrusion is necessary if you wish to mount the water sensor to a wall using the included screw. If you want to install the water sensor in a different location, please use a utility knife to carefully remove the protrusion.
The sensor's mounting height depends on the conductivity of the substrate.
See how to attach the water sensor and its metal bracket.
Attaching the IP water sensor to the mounting bracket
Depending on the surface on which the water leak sensor is to be installed, please select mounting height A or B.
Mounting height A: The surface where the water sensor is installed is non-conductive. The two metal rods should be positioned as close to the ground as possible.
Mounting height B: If the surface to be monitored is conductive (stainless steel floor, sheet metal floor, etc.), mount the metal rods of the leak sensor slightly higher.
The height should be chosen so that a leak of water/moisture is reliably detected.
Water leakage sensor extension
The water leakage sensor comes with a 2-meter RJ-11 patch cable. You can extend the sensor up to a maximum of 100 meters using your own patch cable.
If you need to extend the water leakage sensor, please use waterproof heat-shrink tubing.
Cleaning the leak sensor after detecting water leakage
If the leak detector has come into contact with water or water-based liquids, it must be cleaned and then dried. The same applies to the mounting location or surface being monitored. Furthermore, the water detector's connecting cable must be visually inspected.
Important:
If the water detector has come into contact with corrosive or acidic chemicals (battery acid, etc.), it must be replaced immediately.
Water sensor maintenance
Depending on the installation location of the water leak sensor, an inspection should be carried out at least once a year. In environments with a high degree of contamination, the maintenance interval for the leak detector should be shorter.
Clean the leak detector and the installation location/underside of any dust and dirt. If the sensor comes into contact with cleaning agents/water during cleaning, it must be cleaned and dried immediately. As part of the visual inspection, check the detection unit and the connecting cable for any damage (cable bite/mechanical damage).
As part of the maintenance procedure, the water detector is then tested. To do this, immerse the sensor in a glass of water. The hazard detection and alarm system connected to the sensor must then immediately report the detection of water. Check the stored notification and alarm messages, such as relay switching, triggering of potential-free contacts, SNMP traps, SNMP polling, email sending, and SMS sending (notification types depend on the model and equipment).
In the syslog database of your hazard detection and alarm system, you will find the executed actions and notifications, including the date and time. After successful testing, the water leak sensor must be thoroughly dried and correctly reinstalled.
Water Sensor
