AQUALEAK 10K User manual

AQUALEAK DETECTION LTD
11 Forest Gate, Pewsham, Chippenham. Wilts. SN15 3RS
Tel: [phone]. www.aqualeak.com Email: [e-mail]
AQUALEAK 10K
Water Leak Detection system
Installation and Operation Manual
Issue 1.0, July 2019

10K manual
Issue 1.0, 31st July 2019 Page 2
PREFACE
Published by Aqualeak.
All possible care has been taken in the preparation of this manual, but Aqualeak, its agents
and distributors accept no liability for any inaccuracies that may be found. This manual
reflects the state of the product at the issue date below, but further enhancements while in
service may mean that the manual does not precisely reflect your system.
Aqualeak reserves the right to make changes without notice both to this manual and the
products which it describes.
Issue 1.0, 31st July 2019
Firmware version: 3.2
Aqualeak shall not be liable for errors contained herein or for incidental or consequential
damages in connection with the furnishing, performance or use of this manual.
Copyright: © Aqualeak 2019
All rights reserved.
No part of this publication may be reproduced, stored in a retrieval system or transmitted in
any form or by any means electronic, mechanical, photocopying, recording or otherwise
without the express prior written permission of the copyright holder.
Contact Details:
Aqualeak Detection Ltd,
11 Forest Gate, Pewsham,
Chippenham.
Wiltshire.
SN15 3RS
United Kingdom
If you require technical assistance with this product that is not covered within this manual,
then help can be requested from Aqualeak or our distribution partners.
General enquiries about this or other Aqualeak products should be sent to
[email protected]
All trademarks used within this document are the property of their respective owners.

10K manual
Issue 1.0, 31st July 2019 Page 3
Only for EC countries:
Do not dispose of measuring tools into household waste!
According the European Guideline 2002/96/EC for Waste Electrical and
Electronic Equipment and its implementation into national right, measuring
tools that are no longer usable must be collected separately and disposed of in
an environmentally correct manner.
SAFETY WARNINGS
WARNING –ELECTRIC SHOCK
The Aqualeak 10K operates using mains voltage that is dangerous to life. Before
work commences, make sure that the mains power is isolated by a competent
person and a Lock Out and Tag-Out procedure has been followed. Prove the mains
supply is de-energised with a suitable multi-meter which has been checked with a proving
unit.
Death, personal injury and/or damage to persons and/or property may result if this is not
observed.
LIST OF ABBREVIATIONS
Below is a list of standard abbreviations used in this manual.
A Amp
AC Alternating current
BIT Built In Test
BMS Building Management System
C Celsius
Comms Communications
dB decibel
DC Direct current
Deg Degree
EC European Commission
EOL End of Line
g gram(s)
Hz Hertz
IEC International Electrotechnical Commission
IP Ingress protection
kg kilogram

10K manual
Issue 1.0, 31st July 2019 Page 4
LED Light Emitting Diode
Lsb Least significant bit
M Metre
min minutes
mm millimetre
Msb Most significant bit
msec milli-second
Nm Newton metre
No. Number
PSU Power Supply Unit
RTU Remote Terminal Unit
sec seconds
VAC Volts (Alternating Current)
VDC Volts (Direct Current)
W Watts

10K manual
Issue 1.0, 31st July 2019 Page 5
CONTENTS
Page
PREFACE .......................................................................................... 2
Safety Warnings .................................................................................... 3
List of Abbreviations .............................................................................. 3
CONTENTS (this list) .............................................................................. 5
FIGURES .......................................................................................... 6
TABLES .......................................................................................... 6
INTRODUCTION AND PRODUCT OVERVIEW ..................................................... 5
DESCRIPTION ....................................................................................... 8
Supervised system ............................................................................ 8
Sensors available ............................................................................. 8
Distance Read Leak Detection .............................................................. 8
Front panel .................................................................................... 8
Internal description .......................................................................... 9
Supplied items ..................................................................................... 9
Additional Items ................................................................................... 10
Specification ....................................................................................... 11
INSTALLATION AND CONFIGURATION ........................................................... 12
Preparation for installation ...................................................................... 12
Installing the Aqualeak 10K ...................................................................... 12
Establish Physical Connections .................................................................. 12
TB1 Summary Relay (optional) .............................................................. 14
TB2 Leader Cable ............................................................................. 14
TB3 and TB4: Input Power and EIA-485 communications ports ........................ 15
JMP - Termination Jumper ................................................................... 17
Select Alarm Options .............................................................................. 17
Enable and Disable the Audible Alarm ..................................................... 17
Set the Re-Alarm interval ................................................................... 17
Connect the Leak Detection Cable .............................................................. 18
Connect lengths of sensor cable ............................................................ 18
Secure sensor cable to the floor ............................................................ 19
Applying power to the Aqualeak 10K ........................................................... 20
Test the System .................................................................................... 21
OPERATION ......................................................................................... 22
Front Panel Controls and Display ................................................................ 22
Manage Alarms ..................................................................................... 24
General Guidance ............................................................................ 24
Contamination Alarm Guidelines ........................................................... 24
MODBUS COMMUNICATIONS ...................................................................... 25
Modbus Implementation Basics .................................................................. 25
Modes of Transmission ....................................................................... 25
Slave Address Field ........................................................................... 25
Function Field ................................................................................. 25
Data Field ...................................................................................... 25
Error Check (Checksum) Field .............................................................. 25
Exception Responses ......................................................................... 25
Packet Communications for the Aqualeak 10K ................................................ 26
Function 03: Read Output Registers ....................................................... 26
Function 04: Read Input Registers ......................................................... 28
RTU Framing ....................................................................................... 29
Calibrate sensor cable length via Modbus ...................................................... 30

10K manual
Issue 1.0, 31st July 2019 Page 6
PREVENTIVE MAINTENANCE ...................................................................... 32
Monthly maintenance ........................................................................ 32
TROUBLESHOOTING ............................................................................... 33
Repair .......................................................................................... 34
APPENDIX A –CONFIGURATION REFERENCE .................................................... 35
A1. DIP Switches ................................................................................... 35
A2. SW1 DIP Switch settings ..................................................................... 36
A3. SW2 DIP Switch settings ..................................................................... 37
A3.1 Configure the Aqualeak 10K for Modbus Communications ........................ 37
FIGURES
Page
Figure 1 Aqualeak 10K ......................................................................... 7
Figure 2 Aqualeak 10K controls and indicators ............................................ 9
Figure 3 Aqualeak 10K interior ............................................................... 10
Figure 4 Electrical connections to Aqualeak 10K .......................................... 13
Figure 5 Relay Output Connection TB1 ...................................................... 14
Figure 6 General DIP Switch settings ........................................................ 14
Figure 7 SW1, DIP Switch 5 –Latched or Unlatched Alarms .............................. 14
Figure 8 Cable connection TB2 ............................................................... 15
Figure 9 SW1, DIP Switch 6 –Display cable length in feet or meters ................... 15
Figure 10 SW1, DIP Switch 7 –Ohms per foot resistance .................................. 15
Figure 11 TB3 and TB4 Power Supply and Communications connections ................ 16
Figure 12 DIP Switch settings for Communications Baud Rate ............................ 16
Figure 13 DIP Switch settings for Communications Address ............................... 17
Figure 14 DIP Switch 8, SW 1 - Audible Alarm Settings ..................................... 17
Figure 15 DIP Switch 4, SW1 - Re-Alarm Interval............................................. 18
Figure 16 Sensor cable .......................................................................... 18
Figure 17 Example of sensor cable routing in large data centre ......................... 19
Figure 18 Securing the sensor cable ........................................................... 20
Figure 19 Aqualeak 10K controls and indicators ............................................ 22
Figure 20 SW1 DIP Switch settings for Ohms/Foot .......................................... 30
Figure A-1 General DIP Switch settings ........................................................ 35
Figure A-2 SW1 DIP Switch configuration settings ........................................... 36
Figure A-3 SW2 DIP Switch settings for Modbus Unit Address .............................. 37
TABLES
Page
Table 1 10K specification .................................................................... 11
Table 2 Front panel controls and displays ................................................. 23
Table 3 Exception Codes ..................................................................... 26
Table 4 Read Output Registers Packet Structure ......................................... 26
Table 5 Output Registers ..................................................................... 26
Table 6 Read Input Registers Packet Structure ........................................... 28
Table 7 Input Registers ....................................................................... 28
Table 8 Status Flags (Register 30001) ...................................................... 29
Table 9 Response sample ..................................................................... 29
Table 10 Troubleshooting ...................................................................... 33

10K manual
Issue 1.0, 31st July 2019 Page 7
INTRODUCTION AND PRODUCT OVERVIEW
The Aqualeak 10K is a cost effective, distance-read, leak detection solution. The Aqualeak
10K uses sensing equipment (sold separately) to detect the presence of water and other
liquids. If a leak is detected, an alarm is activated, the distance to the leak is displayed, and
the Aqualeak 10K can report the presence of the leak to a Building Management System
(BMS).
Aqualeak 10K is a single zone system, designed for continuous operation with minimal human
intervention.
In operation, the Aqualeak 10K continuously monitors the sensor cables connected to it.
Figure 1 Aqualeak 10K

10K manual
Issue 1.0, 31st July 2019 Page 8
DESCRIPTION
Capable of accommodating up to 2500 m (8200 ft) of sensor cable, the Aqualeak 10K has an
audible alarm and can communicate via Modbus. As a stand-alone solution, the Aqualeak 10K
provides alarm notification, and numeric distances to leaks or problems, on its front panel.
Integration into a Modbus network allows the activity and status of one or multiple Aqualeak
10K’s to be managed from one central location.
Supervised System
The Aqualeak 10K is a supervised system –it continually monitors the sensor cable and spot
detectors for continuity and produces alarms for the following conditions:
1. Leak detection.
2. Cable break.
3. Cable contamination.
Sensors available
Water is detected using a sensor cable up to a maximum length of 2500 m (8200 ft). Only use
the recommended type of sensor cable supplied by Aqualeak in conjunction with the 10K.
Although not normally installed, spot detectors may be used with the 10K. Contact Aqualeak
for more details.
Distance-Read Leak Detection
When the Aqualeak 10K's circuitry measures a current in excess of the user-defined leak
threshold, the unit's microprocessor computes the distance to the leak. The Aqualeak 10K then
sounds an alarm and communicates via Modbus to a master controller or a Modbus- equipped
monitoring system. The summary relay sends notification to an alarm panel or monitoring
system.
Front panel
The 10K’s front panel display (Figure 2) includes a four-digit LED panel and six LED indicators
that provide information about its status, including the following:
•Leak detected;
•Distance to leak or contamination;
•Cable fault detected;
•Power status;
•Configured unit of measure;
•Leak detection cable’s amperage value;
•Length of installed leak detection cable;
•Self-test results.

10K manual
Issue 1.0, 31st July 2019 Page 9
The two blocks of DIP switches on the 10K’s front panel are used for configuration. DIP SW1
configures parameters such as leak and contamination thresholds, latching alarms, and re-
alarm time interval. DIP SW2 is used to set the Modbus address information for the 10K.
The 10K also provides configuration capability and status information to a Modbus equipped
system via its EIA-485 port.
1 Four-character LED display 4 DIP switch SW2 –Modbus Configuration
2 LED’s 5 Test/Reset/Alarm/Silence push-button
3 DIP Switch SW1 –Configuration Settings
Figure 2 Aqualeak 10K controls and indicators
Internal description
Please refer to Figure 3. The active components of the Aqualeak 10K are the 10K Controller
and the associated Power Supply Unit (PSU). They are mounted on a standard DIN rail inside
the back box of the 10K casing. To the left of the PSU are DIN rail mounted terminal blocks
for the mains supply live, neutral and Earth connections.
The 10K Controller contains two circuit boards. The top circuit board houses the operational
controls and displays. The lower circuit board houses connectors for the leak detection sensor
cable, relay outputs, communications and AC/DC power, and Earth.
If the 10K requires repair and service, it must be either returned to Aqualeak, or an Aqualeak
Installation Engineer called-out.
SUPPLIED ITEMS
The Aqualeak 10K, as supplied, comprises the following items. Before installing the 10K,
check that all items are present and undamaged:
1. The 10K unit, shown on the front cover of this manual.
2. A 4.57 m leader cable, that is used to connect the sensor cable to the Aqualeak 10K.
3. An End Of Line (EOL) terminator.

10K manual
Issue 1.0, 31st July 2019 Page 10
1 Power Supply Unit 7 Relay Output (TB1)
2 Earth bus bar 8 Sensing Cable connector (TB2)
3 AC/DC power and EIA-485 Comms Port 9 Live terminal block
4 Neutral bus bar 10 Neutral terminal block
5 AC/DC power and EIA-485 Comms Port 11 Earth terminal block
6 10K Controller
Figure 3 Aqualeak 10K interior
ADDITIONAL ITEMS
A complete Aqualeak 10K system requires the following additional items, which are sold
separately:
1. A sensor cable. Aqualeak recommends that only the orange coloured sensor cable (Part
No. SCTDM) designed to be used with the Aqualeak 10K is used. If the recommended
sensor cable is used any length of sensor cable up to a maximum length of 2500 m
(8200 ft) may be linked to the 10K.
2. J-clips, used to secure the sensor cable to floors, etc. The number of J-clips required
will depend upon the length and route of the sensor cable.
NOTE
If this product is used in any manner other than that specified by the
manufacturer, the protection provided by the equipment may be impaired.