AQUALEAK EMS-01 User manual

Read these instructions carefully before using this product.
Keep these instructions in a safe place for future reference.
EMS-01 Water Leak Detection System
Instruction Manual

Environmental Monitoring System (EMS-01) Instruction Manual
2
Document Information
Copyright
© Aqualeak Detection Ltd. All Rights Reserved.
This document is the sole property Aqualeak Detection Ltd. and shall not be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated in any form, by any means, without prior written
permission from Aqualeak Detection Ltd.
Publication
Publisher: Aqualeak Ltd. Publication date: 15 February 2021. Version number: 1.1
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 publication 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.
Purpose
This document provides installation and operating instructions for the Environmental Monitoring System (EMS-
01) Water Leak Detection System.
Symbols and Notices Used
Important information has been highlighted throughout this document using the following symbols:
Warning
See relevant section
Take note of this information
Important Safety Information has been highlighted throughout the Safety Information section using the
following warning notices:
Death / serious injury
(irreversible)
Death / serious injury
(irreversible)
Minor injury
(reversible)
Damage to property
Immediate risk
Potential risk
Potential risk
Potential risk
Contact Details
Address
Telephone
Email
Website
Aqualeak Detection Ltd.
[phone]
[e-mail]
www.aqualeak.com
11 Forest Gate
Pewsham
Chippenham
Wiltshire, SN15 3RS
United Kingdom

Environmental Monitoring System (EMS-01) Instruction Manual
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EMS-01 Contents
1Safety Information ..................................................................................................... 5
1.1 Intended Use ...................................................................................................... 5
1.2 Statutory Obligations............................................................................................. 5
1.3 Electrical Safety .................................................................................................. 5
1.4 Installation Safety ................................................................................................ 6
1.5 Post-Installation Safety .......................................................................................... 6
2Product Overview ...................................................................................................... 7
2.1 Technical Specifications ......................................................................................... 8
2.2 Input-Output Connections ....................................................................................... 9
2.3 Single Zone Application Examples............................................................................. 10
2.3.1 Commercial Tea Point ....................................................................................... 10
2.3.2 Communications Room....................................................................................... 10
3Installation .............................................................................................................11
3.1 Unit Installation.................................................................................................. 11
3.1.1 Mounting ....................................................................................................... 11
3.1.2 Power Connections ........................................................................................... 11
3.2 Sensors and Relays .............................................................................................. 12
3.2.1 Sensor / Relay Connections ................................................................................. 12
3.3 Ancillary Devices................................................................................................. 16
3.3.1 Signalling to an Ancillary Device ........................................................................... 16
3.3.2 12/24V Output to Power an Ancillary Device ............................................................. 16
3.3.3 230V Output to an Ancillary Device ........................................................................ 17
4Configuration ..........................................................................................................18
4.1 DIP Switch Settings .............................................................................................. 18
4.2 Sensitivity Adjustment .......................................................................................... 19
5Operation ...............................................................................................................20
5.1 Monitor Mode..................................................................................................... 21
5.2 Fault Mode........................................................................................................ 21
5.3 Alarm Mode....................................................................................................... 21
5.4 Engineering Override Mode..................................................................................... 22
5.5 Test Mode......................................................................................................... 22
5.6 System Testing ................................................................................................... 23
5.6.1 Test System Modes ........................................................................................... 23
5.6.2 Test a Cable Fault (leader and sensor cables)............................................................ 24
6Maintenance ...........................................................................................................25
6.1 Cleaning........................................................................................................... 25
6.2 Troubleshooting.................................................................................................. 25
7Warranty................................................................................................................26

Environmental Monitoring System (EMS-01) Instruction Manual
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EMS-01 Tables
Table 1: EMS-01 Technical Specifications ......................................................................... 8
Table 2: EMS-01 Input-Output Connections ....................................................................... 9
Table 3: DIP Switch Assignments and Default Settings ......................................................... 18
Table 4: EMS-01 Sensitivity Levels................................................................................. 19
Table 5: Modes and Capacitive Touch Button Combinations................................................... 20
Table 6: Monitor Mode Touch Button Inputs and Effects ....................................................... 21
Table 7: Cable Fault Mode Touch Button Inputs and Effects .................................................. 21
Table 8: Leak Mode Touch Button Inputs and Effects .......................................................... 21
Table 9: Engineering Mode Touch Button Inputs and Effects .................................................. 22
Table 10: Test Mode Touch Button Inputs and Effects ........................................................... 22
Table 11: EMS-01 Troubleshooting .................................................................................. 25
EMS-01 Figures
Figure 1: Aqualeak EMS-01 Water Leak Detection System ....................................................... 7
Figure 2: EMS-01 Input-Output Connections ....................................................................... 9
Figure 3: EMS-01 Commercial Tea Point Application Example ................................................. 10
Figure 4: EMS-01 Commercial Communications Room Example ................................................ 10
Figure 5: EMS-01 Rear Panel Showing Electrical Power Connections .......................................... 11
Figure 6: EMS-01 Rear Panel Showing Sensor / Relay Connections ............................................ 12
Figure 7: Sensor Cable Connection using Leader Cable (LC10C) ............................................... 12
Figure 8: Sensor Cable Connection using LC10/LCB100 and Start of Line (No EOL Switch) ................ 13
Figure 9: Sensor Cable Connection using Single ESD Sensor Probe ............................................ 14
Figure 10: Connecting Multiple ESD Sensor Probes as a Single Zone ............................................ 15
Figure 11: Connection for Signalling to an Ancillary Device ..................................................... 16
Figure 12: Using the 12/24 Volt Output to Power an Ancillary Device ......................................... 16
Figure 13: Using the EMS to Power a 230V Ancillary Device (Alarm Relay 1: Normally Open) .............. 17
Figure 14: Using the EMS to Power a 230V Ancillary Device (Alarm Relay 1: Normally Closed)............. 17
Figure 15: Rear of EMS-01 Showing Sensitivity and DIP Switch Settings ........................................ 18
Figure 16: DIP Switch Assignments and Default Settings (bottom of unit) ..................................... 18
Figure 17: Front Panel of the Aqualeak EMS-01 Water Leak Detection System ............................... 20

Environmental Monitoring System (EMS-01) Instruction Manual
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1Safety Information
For your safety and the safety of others, please ensure that you read the Safety
Information below before you install or operate this product.
1.1 Intended Use
Only use this product for the intended purpose described in this manual.
1.2 Statutory Obligations
✓Installation and maintenance must comply
with all relevant local laws and regulations
(‘statutory obligations’), particularly
concerning electrics, water supplies, and
building regulations.
✓Statutory obligations always override
manufacturer documentation.
✓It is the responsibility of the customer to
conduct a Health & Safety risk assessment
prior to installing and operating this
product.
This product should not be operated by
children or persons with reduced physical,
sensory or mental capabilities. Where
necessary, such Persons should be given
supervision by a qualified person
responsible for their safety.
DO NOT position the unit (including its
power cable) where it may violate Fire or
Health and Safety regulations (e.g. block
fire exits or stairwells, etc.).
1.3 Electrical Safety
RISK OF 230 VOLT ELECTRIC SHOCK
RISK OF DEATH OR SERIOUS INJURY
✓ONLY qualified, competent and approved
persons (e.g. ‘electrical engineers’) may
undertake installations, repairs, or
relocations of this product.
✓The product must be earthed correctly.
✓For indoor use only.
✓Ensure that the building electrical system is
compliant with Safety Regulations.
DO NOT allow children or any other
unqualified or unapproved persons to
install, repair, clean, relocate, or
otherwise interfere or tamper with the
product.
DO NOT immerse the unit or its peripherals
in liquid.
DO NOT install outdoors, near hot works, or
where there is a danger of freezing.

Environmental Monitoring System (EMS-01) Instruction Manual
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1.4 Installation Safety
RISK OF DAMAGE
RISK OF INJURY
✓Install the product on a hard, solid, and
level surface.
✓Follow the instructions provided in this
manual. Where necessary, refer to the
Aqualeak website (www.aqualeak.com) for
contact and support information.
✓Be aware of any existing electrical (e.g.
wiring), water (e.g. pipes), or other
installations in the vicinity (including within
or behind the surface used for mounting.
✓Where applicable, this manual should be
read in conjunction with manufacturer
documentation for any components
specified in the installation requirements of
this manual.
1.5 Post-Installation Safety
Once installed:
1. Perform a test run to ensure normal
operation.
2. Explain all safety precautions to the end
user.
3. Provide a copy of this manual to the end
user.
✓It is the responsibility of the end user to
supply this manual to any other subsequent
users.
✓All goods are sold subject to our
‘Conditions of Sale’.
✓As Aqualeak Detection Ltd. continuously
improves products, they may be modified
without notice. In such circumstances, this
manual and other relevant documentation
should be disregarded. Updated
documentation will be produced, supplied
with new product ranges, and made
available on request.
SAVE THESE INSTRUCTIONS

Environmental Monitoring System (EMS-01) Instruction Manual
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2Product Overview
Ensure you have read the Safety Information in section 1 before attempting installation or
operation of this unit.
The Aqualeak Environmental Monitoring System
(EMS) Water Leak Detection System series are
standalone leak detection systems designed to be
integrated into larger Building Management Systems
(BMS) and networks.
Designed for continuous operation with minimal
human intervention, the EMS series is also
compatible with a wide variety of sensing
technologies (sold separately) to detect the
presence of water and other liquids.
The Aqualeak EMS-01 is designed to monitor for
water leaks in single-zone critical areas such as Tea
Points,Satellite Equipment Rooms (SERs), and
Main Equipment Rooms (MERs).
The unit may also be configured. Sensitivity to moisture and delays to alarms may be adjusted to better tailor
the system to intelligently respond to a wide range of environments, situations and user requirements.
Features
Capacitive touch interface
User configurable (sensitivity adjustment,
alarm delays, output control, overrides, and
self-maintenance features)
Multiple outputs
Pattress or flush mountable; mains powered
Audible and visual alarms
Compatible with a large number of sensor
types and ancillary devices
CE Compliant
Operation
In operation, the EMS-01 continuously monitors the sensing equipment connected to it for both circuit integrity
and the presence of water. If a leak is detected, an audible alarm is activated, an LED illuminated, and, if
connected, the EMS will report its alarm status to any connected device (BMS/SMS/beacon, valve) via its volt
free contacts. Benefits of the EMS-01 include:
Continuous leak and cable break monitoring
Minimal human intervention required
Reduced risks from flooding
Built-in fault detection
EMS Series Models
In addition to the EMS-01, the Aqualeak EMS series also includes the following models:
EMS-05
5 input channels
EMS-10
10 input channels
EMS-OS
Multiple input channels (scalable and
modular for large scale applications, up to
620 zones)
Figure 1: Aqualeak EMS-01
Water Leak Detection System

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2.1 Technical Specifications
EMS-01
Specification
Notes
Dimensions
146 x 86 x 69 mm
Millimetres. Width x Height x Depth
Weight
300 g
Grams (0.3 Kilograms)
Supply Voltage
100-240 VAC
Volts / Alternating Current
50-60 Hertz
Motherboard Output Relay Voltage
250 VAC
Motherboard Output Relay Current
8 A
Amps. Maximum into resistive load
Relay Minimum Load
10 mA
Milliamps. At 5 VDC (Volts / Direct Current)
Leader Cable
Belden 9534
Belden 9534 EIA RS-232 Multicore Cable (4
Core, 24 AWG, 0.2 mm²). Variable length.
Detection Response Time
1 second
Alarm (Audible)
85 dB
Decibels. Within 0.6 m range
Alarm (Visible)
LED Indicator
Front panel
Operating Temperature
0 to +50°C
Degrees Centigrade. Ambient temperature
Operating Humidity
10 to 95%
Relative humidity (non-condensing) at 45°C
Operating Altitude
0 to 3,000 m
Metres
Storage Temperature
-20 to +70°C
Input channels
1
Maximum Sensor Cable Length
100 m (with
maximum 20 probes)
Use recommended yellow Sensor Cable
(SCY). Also requires End of Line (EOL)
terminator.
Table 1: EMS-01 Technical Specifications

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2.2 Input-Output Connections
Figure 2: EMS-01 Input-Output Connections
Item
Name
Notes
Relay Abbreviations
1
Power Fault Relay
NC | NO | COM
NO = Normally Open
NC = Normally Closed
COM = Common
2
Sensitivity Measure
Used with Sensitivity Adjustment
3
DC Out
12V / 24V Selectable Output
Maximum 250mA
4
Fault Relay
COM | NO | NC
Mains Abbreviations
5
DIP Switch Array
8 Switches. Switches 5 and 7 are disabled
LS = Live Supply
LL = Live Loop
NS = Neutral Supply
NL = Neutral Loop
ES = Earth Supply
EL = Earth Loop
6
Sensitivity Adjustment
Used with Sensitivity Measure
7
Alarm Relay 2
NO | COM | NC
8
Alarm Relay 1
NC | COM | NO
9
Mains Supply / Loop
LS | LL | NS | NL | ES | EL
10
Sensor Input
Red | Black
Table 2: EMS-01 Input-Output Connections
4
3
2
1
5
6
7
8
9
10

Environmental Monitoring System (EMS-01) Instruction Manual
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2.3 Single Zone Application Examples
Aqualeak water leak detection and prevention systems are based on a modular design. Parts
supplied depend upon intended application and particular requirements. Once the individual
components have been selected, the system can be built and installed.
2.3.1 Commercial Tea Point
Figure 3: EMS-01 Commercial Tea Point Application Example
2.3.2 Communications Room
Figure 4: EMS-01 Commercial Communications Room Example
End of Line (EOL)
Terminator
EMS-01
LCB10C
Leader Cable
SCY
Sensor Cable
Start of Line (SOL)
EMS-01
LCB10C
Leader Cable
SCY
Sensor Cable
Start of Line (SOL)
End of Line (EOL)
Terminator

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3Installation
Risk of electric shock and equipment damage! Ensure you have read the Safety Information in
section 1 before attempting installation. The EMS-01 can be either surface mounted with the
supplied pattress, or flush mounted (back-box not supplied).
3.1 Unit Installation
3.1.1 Mounting
Mount the unit as follows:
1. Ensure the unit has been properly removed
from its packaging.
2. Securely mount the supplied pattress box
or an appropriate flush mount alternative
in a suitable location, and make the cable
entries as required.
3. Bring the cables through the pattress box or
flush mount alternative to the unit before
starting to make final connections.
4. Securely house the unit in the pattress box
or flush mount alternative.
3.1.2 Power Connections
A competent person must power the EMS-01 via an appropriate mains supply at a nominal 230V
50-60Hz, from a spur with a minimum capacity of 8 Amps. This supports switching power to
external loads through the 8 Amp Double Pole Double Throw (DPDT) relay.
Figure 5: EMS-01 Rear Panel Showing Electrical Power Connections
Connect power to the EMS as follows:
1. Route the power cable from the
unswitched fused spur into the unit
mount, using suitable containment/cable
protection.
2. Connect the power cable (i.e. Live, Neutral
and Earth) to the unit.
220/240V AC
CONNECTION
LS|LL|NS|NL|ES|EL

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3.2 Sensors and Relays
Regardless of sensor type or combinations of sensor types, there must always be an end of line
(EOL) terminating resistor at the end of the sensing circuit to allow for cable break monitoring
and alarm reference set point. The unit relies upon a terminating resistor of value 47k ohms.
The unit should be powered OFF when making connections. Sensors should be installed so that
they remain accessible for maintenance.
Multiple sensors and sensor types may be connected to the unit. Sensor cables (SCY), for example, monitor
for water along their full length and can be run in lengths between 1 and 100 metres; Sensor probes (ESD)
monitor for water in their exact location only and can be connected in circuits of between 1 and 20 probes.
3.2.1 Sensor / Relay Connections
Figure 6: EMS-01 Rear Panel Showing Sensor / Relay Connections
A. Connect Sensor Cable (SCY) using LC10C and End of Line
Figure 7: Sensor Cable Connection using Leader Cable (LC10C)
Connect the Sensor Cable using LC10C and End of Line (EOL) as follows:
1. Ensure that the unit is powered OFF.
Connect the leader cable into the sensor
input terminal on the unit. Do not connect
the green or white cores
(Figure 6).
2. Plug the opposite end of the leader cable
into the sensor cable (Figure 7).
3. Once all sensor cables are connected (to a
maximum total length of 100 metres), plug
the End of Line (EOL) terminator into the
end of the last run of the sensor cable.
SENSOR INPUT
Red Core: Left
Black Core: Right
FAULT RELAY
COM|NO|NC
ALARM RELAY 1
NC|COM|NO
POWER FAULT RELAY
NC|NO|COM
ALARM RELAY 2
NO|COM|NC
Cable Connection
Leader Cable
Sensor Cable
EOL Terminator

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B. Connect Sensor Cable (SCY) using LC10/LCB100 and Start of Line
Figure 8: Sensor Cable Connection using LC10/LCB100 and Start of Line (No EOL Switch)
Connect the Sensor Cable using LC10/LCB100 and Start of Line (SOL) as follows:
1. Ensure that the unit is powered OFF.
Connect the leader cable into the sensor
input terminal on the unit. Do not connect
the green or white cores
(Figure 6).
2. Cable the opposite end of the leader cable
in to the Start of Line (SOL;
Figure 8).
3. Plug the sensor cable into the connection
on the SOL.
4. Once all sensor cables are connected, plug
the End of Line (EOL) terminator into the
end of the last run of the sensor cable.
LOOP TERMINAL
block not used
Green and white
cores not used
Belden 9534 Cable to
EMS Zone Input
Secure cable under clamp
strap
SENSE TERMINAL
Red Core: +/1
Black Core: -/2

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C. Connect a Single Environmental Sensing Device Sensor Probe
Figure 9: Sensor Cable Connection using Single ESD Sensor Probe
Connect a single ESD Sensor Probe as follows:
1. Ensure that the unit is powered OFF.
Connect the leader cable into the sensor
input terminal on the unit. Do not connect
the green or white cores
(Figure 6).
2. Connect the opposite end of the leader
cable to the ESD probe, and ensure that the
EOL Switch is set to the ‘IN’ position
(Figure 9).
LOOP TERMINAL
block not used
Green and white
cores not used
Belden 9534
Cable to
EMS Zone Input
Secure cable under clamp
strap
SENSE TERMINAL
Red Core: +/1
Black Core: -/2
RED EOL SWITCH
‘IN’ position

Environmental Monitoring System (EMS-01) Instruction Manual
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D. Connect Multiple Environmental Sensing Device Sensor Probes as a Single Zone
Figure 10:Connecting Multiple ESD Sensor Probes as a Single Zone
Connect multiple ESD sensor probes to a single zone as follows:
1. Ensure that the unit is powered OFF.
Connect the leader cable into the sensor
input terminal on the unit. Do not connect
the green or white cores
(Figure 6).
2. Connect the series of ESD probes. Ensure
that all EOL switches except the last are set
to the ‘OUT’ position; the last EOL switch
should be set to the ‘IN’ position
(Figure 10).
ESD #3: RED EOL SWITCH
‘IN’position
ESD #1: RED EOL SWITCH
‘OUT’ position
ESD #2: RED EOL SWITCH
‘OUT’position

Environmental Monitoring System (EMS-01) Instruction Manual
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3.3 Ancillary Devices
3.3.1 Signalling to an Ancillary Device
The EMS-01 can be connected to provide a signal to a range of ancillary devices such as a Building
Management System (BMS) or Short Message Service (SMS) alarm unit.
Figure 11:Connection for Signalling to an Ancillary Device
Connect the EMS to an ancillary device as follows:
1. Ensure that the unit is powered OFF. Refer
to Figure 6 to select the correct relay for
the application.
2. Connect the relevant relay (Figure 11; core
colours are for illustrative purposes only
and may differ during application).
3.3.2 12/24V Output to Power an Ancillary Device
Figure 12:Using the 12/24 Volt Output to Power an Ancillary Device
Use the EMS 12/24 Volt auxiliary output to power an ancillary device as follows:
1. Ensure that the unit is powered OFF. Use
DIP Switch 8 to set the output to the
correct voltage for your device (default is
OFF/12V; see section 4.1, Table 3 for DIP
Switch assignments and default settings).
2. Connect your device to the 12/24V output,
250mA maximum (Figures 6 and 12).
DC OUT
0V|12/24V
CABLE TO DEVICE
Red Core: COM
Black Core: NO
CABLE TO DEVICE
Red Core: COM
Black Core: NC
ALARM RELAY 1
This device requires a
‘normally open’
condition for heathy status
ALARM RELAY 2
This device requires a
‘normally closed’
condition for heathy status

Environmental Monitoring System (EMS-01) Instruction Manual
17
3.3.3 230V Output to an Ancillary Device
The EMS can be used to control powered ancillary devices such as a beacon or solenoid valve.
Figure 13:Using the EMS to Power a 230V Ancillary Device (Alarm Relay 1: Normally Open)
Figure 14:Using the EMS to Power a 230V Ancillary Device (Alarm Relay 1: Normally Closed)
Use the EMS to power a 230V ancillary device as follows:
1. Refer to section 2.2 and/or 3.2.1 (Figure 6)
to select the correct relay.
2. Wire the device. Wiring is dependent on the
labelling of terminals and whether the
device is normally open or normally closed
(Figures 13 and 14 show wiring for
normally open and normally closed devices
connected to Alarm Relay 1).

Environmental Monitoring System (EMS-01) Instruction Manual
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4Configuration
Figure 15: Rear of EMS-01 Showing Sensitivity and DIP Switch Settings
4.1 DIP Switch Settings
DIP Switch setting changes take effect immediately unless the system is in a state of reporting a
fault or leak (i.e. Cable Fault or Leak Mode), or is in Test or Engineering Mode (see Section 5).
The unit should be powered down before settings are adjusted and then re-booted.
The unit should be powered OFF before setting the DIP Switch array according to the desired configuration:
Figure 16:DIP Switch Assignments and Default Settings (bottom of unit)
DIP
Function
Description
Default
1
Unit sounder
Enabled / disabled
ON
2
Disable Relay Latch
When enabled, alarm relays are latched in accordance with the
real-time alarm condition of the unit; i.e. no user
acknowledgement of an alarm is required to unlatch the relay
once the unit has returned to a healthy condition.
OFF
3
1 Minute Alarm Delay
The unit will delay entering alarm mode for 60 seconds (DIP 3) or
300 seconds (DIP 4) after an alarm condition occurs. If the alarm
condition is cleared within the delay period (i.e. 1 or 5 minutes),
the unit will resume normal operation with no alarm.
4
5 Minute Alarm Delay
5
DISABLED
6
Timed Latch
The unit will latch all outputs for a period of 10s every 28.5 days
after last power up. This feature is designed to mitigate against
solenoid valve seizure, and also offers a communication health
check between the unit and any other connected system.
OFF
7
DISABLED
8
12/24V DC Out
Selector
This output provides a constant DC output to power a connected
device if required. The output is limited to 250mA maximum.
OFF
(12V)
Table 3: DIP Switch Assignments and Default Settings
Sensitivity
Measure
Sensitivity
Trimmer
DIP Switches
1 2 3 4 5 6 7 8
ON
OFF
DIP Switch numbers

Environmental Monitoring System (EMS-01) Instruction Manual
19
4.2 Sensitivity Adjustment
A small flat-head screwdriver should be used to set potentiometer sensitivity. A digital multi-
meter (DMM) is also required to measure sensitivity settings during adjustment.
The unit sensitivity trimmer provides a means to control the set point at which alarms occur. This can be
adjusted to prevent false triggering and manage temporary rises in humidity.
There are 5 levels of sensitivity:
Level
Volts
ADC
Setting
Notes
5
0.7
213
Maximum
Sensor resistance up to approximately 30K.
4
1.4
437
The full-scale dial angle is approximately 220 Degrees (maximum to minimum);
levels are approximately 55 degrees apart. Adjust clockwise (CW) to increase
sensitivity, and counter-clockwise (CCW) to decrease sensitivity.
3
2.1
658
2
2.8
869
1
3.29
1023
Minimum
Sensor resistance at approximately 10K.
Table 4: EMS-01 Sensitivity Levels
Adjust the sensitivity of EMS sensors as follows:
1. Ensure the unit is powered on.
2. Attach a digital multi-meter (DMM) to the
Sensitivity Measure terminals ( ).
This is to measure sensitivity as it is being
adjusted.
3. Insert a small flat-head screwdriver into
the Sensitivity Trimmer until it contacts
the bottom. Some resistance should be felt
as the tool is turned to adjust sensitivity.
4. Table 4 (above) provides sensitivity
measurements. Turn the small flat-head
screwdriver:
a. Clockwise (CW) to increase
sensitivity, or
b. Counter-clockwise (CCW) to
decrease sensitivity.
5. Once the procedure is complete, remove
the digital multi-meter and small flat-head
screwdriver from the unit.

Environmental Monitoring System (EMS-01) Instruction Manual
20
5Operation
Ensure you have read the Safety Information in section 1 before operating this product.
Configuration of DIP Switch settings will determine sounder, alarm delay, and relay latch
activation during operating modes (see section 4.1).
Once powered on, the EMS-01 Leak Detector maintains a background timing scheme while continuously
monitoring sensor and sensitivity levels. The unit continuously monitors connected Aqualeak sensors to
gather batches of data samples which are averaged over time to determine if a cable fault or leak has
occurred.
System status is displayed via indicator LEDs and operation is undertaken via capacitive touch buttons
located at the front of the unit:
Figure 17:Front Panel of the Aqualeak EMS-01 Water Leak Detection System
EMS-01 Mode
Description
Monitor
Standard operating status.
Fault
Cable break detected.
Alarm
Leak detected.
Test
Test relays and Alarm for 15 seconds.
Engineering
Available only in Fault or Alarm modes. Disables relays.
Table 5: Modes and Capacitive Touch Button Combinations
Mute Button
Test Button
Power Indicator
Alarm Indicator
Fault Indicator
Reset Button