VT594 / BMS leak water sensor
keywords: BMS leak detection, Building Management System leak monitoring,
Function and purpose
Product page:
Datasheet page: https://vutlan.atlassian.net/wiki/spaces/DEN/pages/3036315649/
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The sensor must be used together with
"WLC / Water leak cable" is ordered separately! When water is in contact with the detection cable sensor indicates the emergence of moisture. The whole area can be effectively monitored by placing the cable near or along with possible flood sources.
Order options
Model number | Power supply voltage |
|---|---|
VT594-12 | 12V DC |
VT594-24 | 24V DC |
Dimensions
Usage examples
Technical specifications
VT594 / BMS water leak sensor specifications | |
|---|---|
Dimensions | 60×18×18 mm |
Weight | 60 g |
Input | 2 wire (WLC cable) |
Output | RJ11 / RJ12 (6p4c) |
Operating temperature | -10 °C to +80 °C |
Operating humidity | 5% to 95% (Non-Condensing) |
Mounting | Mounting bracket included. |
Power consumption | 60mW |
Max. distance m | 100 m |
Power supply voltage | optional order: 12V DC or 24V DC |
HS Code | 9025 80 400 |
Components | Manufactured in E.U. |
Special features | Response time: 15 sec., Recovery time: Depends on how fast the sensor dries out |
WLC / Water leak cable specifications | |
|---|---|
Description | WLC can work in high humidity, pollution, and hazardous waste |
Detectable liquids | Clean, polluted & distilled water; acids; alkalis; alcohols, and other electrically conductive liquid |
Diameter | 6.5 mm in diameter |
Lengths | Order options include 10m, 15m, 25m, 50m, or custom length. |
Weight | 36 g/m |
Operating humidity | 0% - 95 % |
Max. storage temperature | 75°C |
Max. cable length | 100 m |
Inputs | x2 wires |
Package content
Connecting WLC / Water leak cable
Model VT594-12 (Power supply voltage is 12V DC)
Model VT594-12 (Power supply voltage is 24V DC)
Do not do illustration | Description |
|---|---|
The cable can not touch itself. It needs to be straightened. | |
| Do not twist or press down the cable too much. This may lead to deformation. The cable has two sensing wires, these wires can not touch each other. |
| Do not put the cable on a conductive surface. |
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Connect the "VT594 / Water leak sensor" to any BMS unit dry contact and 12-24V input, Gnd.
Connect the "Terminal cable" to the VT594 sensor.
Connect "WLC / Water detection cable" to "Terminal cable".
Connect any additional "WLC / Water detection cables" to each other as shown in the picture above to make a chain connection.
Wire the WLC rope around or under potentially leaking objects around the perimeter or under the raised floors.
Put a protective cap on the connector of the last WLC cable in a chain.
The sensor is ready to use.
How to test the sensor & sensor cable
Connect the WLC cable to VT594 by terminal cable. Connect VT594 to dry contact, voltage and ground points of the BMS system. Make sure that the WLC cable is straight or not contacting itself, or any conducting material. The sensor should appear in the BMS system as “Normal” (if the behavior is set to “Normal”), which means that there’s no presence of liquid (the two yellow wires along the WLC cable are not cables shorted).
Take a rag and wet it a little. Touch the rag to both yellow wires on the WLC cable. This should shorten the contact. The VT594 sensor should change the state to “Alarm”.
Dry the cable carefully with a dry cloth.
Cable layouts
| Cover the whole area Comprehensive protection for critical areas |
Cover the edge area Prevent leaks from immersing in or spreading out | |
Covering air-conditioned areas Key protection against major leakage sources such as alr conditioners |
Schematics / Sensitivity adjustment
You can change the a resistor using the following schemes.
For example, if your room has very high humidity and the cable is in an alarm state without the spilled liquid being present, you can change R10 to 270k. This should lower the sensitivity level.
Model VT594-12 (power supply voltage 12VDC)
Model VT594-24 (power supply voltage 24VDC)
Troubleshooting
The following table describes potential problems and their possible causes. It also describes checks you can perform or possible solutions for each. After referring to this table, if you cannot resolve the problem, contact your local Vutlan sales representative for assistance.
Potential Problem | Possible Cause | Possible Solution |
|---|---|---|
The data being displayed is inaccurate or not what you expect. | Incorrect setup values. | Check that You use the correct f(x) formula |
Incorrect voltage inputs. | Check power meter voltage input terminals to verify that adequate voltage is present | |
The power meter is wired improperly. | Check that all wires are connected correctly and that they are energized. See “Wiring Diagrams” of the device. | |
The sensor does not appear in the Vutlan monitoring interface | Communication lines are improperly connected. | Check the 6P4C RJ11 communication cable. |
The communication cable is inserted into the wrong port. | 6P4C RJ11 communication cable must be inserted into the analog port of the Vutlan monitoring system. | |
The sensor is always in alarm state. | The cable touches itself. | The cable can not touch itself. It needs to be straightened. Please check if the cable is bent anywhere. |
The cable is twisted or pressed down too much. | Do not twist or press down the cable too much. This may lead to deformation. The cable has two sensing wires, these wires can not touch each other. | |
The cable is located on a conductive surface. | Do not put the cable on a conductive surface. | |
The cable is damaged | Check the continuity of the cables with a multimeter. Let’s call each wire A and B: If the cable is not damaged, you should get the following results
If the cable is damaged, you will get:
or
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Vutlan s.r.o. (LLC)
Remote Infrastructure Monitoring and Control
43 ul.Svornosti, 821 06 Bratislava,
Slovak Republic