Sontay WD-AMX User manual

Tel: [phone] - E-mail: [email protected]m - Web: www.sontay.com
© 2017 Sontay Limited. All rights reserved
Page 1 of 3
WD-AMX
Water Detection Controllers
Issue Number: 7.1
Date of Issue: 29/10/2019
Four Elms Road Edenbridge
Kent TN8 6AB UK
Features & Benefits
LED Status of leak status
VFC output
Audible alarm
Auto or manual reset alarm output
Uses an isolated AC signal which prevents
oxidation or erosion of sensing modules
Technical Overview
The WD-AMX water leak detection modules are designed for use with the WD-CS, WD-PS and WD-RS water leak detection sensors.
The modules have LED Indication of the water leak status and a sounder that can be enabled or disabled. The relay output can be used in manual or
auto reset, and can be used as an alarm signal for connection to a BMS controller or remote alarm annunciation panel, such as the UI-AA-1-F.
The cable excitation used is an isolated AC signal which ensures the detector cable will not be subject to oxidation or erosion over time, avoiding the
degradation problems associated with DC systems
Specification
Supply Voltage:
WD-AMX-1 24Vac/dc ±10%
WD-AMX-2 230Vac @ 50Hz
Supply current 50mA max.
Output 12A @ 250Vac
LED Status indication for:
Error condition
Input sensitivity
Relay output mode
Learning Mode
Response time <1 sec. after exposure
Max. sensor cable length 200m with leader cable
Alarm hysteresis Dependent on sensitivity
Clockwise Minimum
Anticlockwise Maximum
Audible alarm output [email protected] @ 10cm
Electrical Terminals for 0.5-2.5² cable
Connections Rising cage
Ambient:
Temperature 0°C to 40°C
RH 0-80% non-condensing
Dimensions 74 x 76 x 50mm
Weights:
WD-AMX-1 100g
WD-AMX-2 240g
Country of origin UK
The products referred to in this data sheet meet the requirements of
EU 2014/30/EU and 2014/35/EU
Product Codes
WD-AMX-1
24Vac/dc water detection alarm module with audible
alarm and LED status indication
WD-AMX-2
230Vac water detection alarm module with audible alarm
and LED status indication
Warning!
When installed, the output relay contacts may carry 240Vac. Special
care must be taken to isolate the switched voltages prior to any work
being undertaken.
WEEE Directive:
At the end of the products useful life please
dispose as per the local regulations.
Do not dispose of with normalhousehold waste.
Do not burn.

Tel: [phone] - E-mail: [email protected]m - Web: www.sontay.com
© 2017 Sontay Limited. All rights reserved
Page 2 of 3
WD-AMX
Water Detection Controllers
Issue Number: 7.1
Date of Issue: 29/10/2019
Four Elms Road Edenbridge
Kent TN8 6AB UK
Installation
Antistatic precautions must be observed when handling these sensors. The PCB contains circuitry that can be damaged by static
discharge.
1. The WD-AMX should only be installed by a competent, suitably trained technician, experienced in installation with hazardous voltages.
(>50Vac & <1000Vac or >75Vdc & 1500Vdc)
2. Ensure that all power is disconnected before carrying out any work on the WD-AMX.
3. Maximum cable is 2.5mm², care must be taken not to over tighten terminals.
4. When mounting the WD-AMX care should be taken not to stress the PCB when fitting to the DIN rail. If it is necessary to remove the
module from the DIN rail, be sure to use a flat bladed screwdriver to release the DIN clips.
5. The WD-AMX-1 is designed to operate from a 24Vac or 24Vdc supply (so that power can be drawn from a 24Vac transformer used for
other purposes if a 24Vdc supply is not available). The WD-AMX-2 is designed to operate from a 230Vac mains supply.
6. The relay output is an SPDT type, allowing either a Normally Open (NO) or Normally Closed (NC) connection.
Operation
On power- ode jumper can be set to the required operating mode. In
eport an alarm. The unit
-up or reset. After this time, the
adjustment of the trimmer or change to the relay mode jumper has no effect. Note that if the reset button is pressed, the alarm will sound (if
enabled) for at least two seconds as part of the initialisation function. In this event, the mode jumper and trimmer setting should be checked before
the unit is left to monitor the sensor autonomously.
When the unit is first powered up, the sounder will be left de-energised for a
minimum of two seconds. This is so that there will be an alert reported over the relay if the reset button is pressed.
Once the relay has been energised, it will be held in this state for a minimum of two seconds, even if a flood is detected immediately.
Learning Mode
by pressing the
reset switch.
LED Status
Green LED:
The green LED should be on contin
Yellow LED:
This will be on if the sensor reading is more than 33% of the threshold setting.
Orange LED:
This will be on if the sensor reading is more than 66% of the threshold setting.
Red LED:
This will be on solidly if the sensor reading exceeds the threshold setting. If the red LED is flashing, it is either becau
or, if the green LED is off, because the unit has disco
Error Indication
If the unit thinks that there is an error (for example, the sensor reads such an extreme level that a short circuit is suspected) then the red LED will
flash continuously, the relay will be de-energised, and the sounder will be activated (if enabled). The sounder pattern will be three tones followed
by a gap, to differentiate it from the flood warning. The green LED will be off to differentiate between an error report and
error report will be held until the reset button is pressed, although this function could reset automatically if the unit is
Sensitivity Adjustment
To adjust the sensitivity press the reset switch, the green LED will rapid flash
Potentiometer fully anticlockwise Most sensitive
Potentiometer fully clockwise Least sensitive

Tel: [phone] - E-mail: [email protected]m - Web: www.sontay.com
© 2017 Sontay Limited. All rights reserved
Page 3 of 3
WD-AMX
Water Detection Controllers
Issue Number: 7.1
Date of Issue: 29/10/2019
Four Elms Road Edenbridge
Kent TN8 6AB UK
Whilst every effort has been made to ensure the accuracy of this specification, Sontay cannot accept responsibility for damage, injury, loss or
expense from errors or omissions. In the interest of technical improvement, this specification may be altered without notice.
Relay Output Modes
Off:
The relay will be de-energised and the sounder silent, no matter what the sensor condition. The green and yellow LEDs will flash alternately while in
s will indicate as
normal.
Reset:
The WD-AMX will report all flood alerts by releasing the relay and activating the sounder (if enabled). Any transition will be reported for a minimum
of two seconds. When the sensor stops indicating a flood, the unit resets automatically.
Latch:
In latching (manual reset) mode the WD-AMX reports the initial flood alert by releasing the relay and activating the sounder (if enabled). The relay
and sounder will continue to indicate the alarm until the reset switch on the unit has been pressed.
NB the true status of the sensor.
On:
This is a mode used to test the installation without needing to wet the sensor. The sounder and relay will be energised and the green and red LEDs
will flash alternately for approximately 2 minutes to show that this mode is selected. After this time, the green LED will be ON while the red LED will
continue to flash.
Jumper Settings & Connections
Relay Mode Link: Sounder link:
Sensor input Sensor input 24Vac/dc 0V
Manual
reset
Relay output
Sensitivity
adjustment
Jumpers
Manual
reset
Sensor
input
Relay output
Jumpers
240Vac
supply
Sensitivity
adjustment
Off
Reset
Latch
On
Silent
Active