ELSA 3L-SP User manual

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3L-SP/AP
Leak Control Panel with
Alarm and LCD Display
For
Liquid Leakage
Locating & Detection System
User Guide
(2017 Rev 1)

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TABLE OF CONTENTS
CHAPTER 1 QUICK GUIDE TO INSTALLATION...................................................................................... 4
1.1 INTRODUCTION.................................................................................................................................4
1.2 3L-SP/AP PANEL WIRING DETAILS.....................................................................................................4
1.2.1 3L-SP/AP PANEL PIN NUMBER DETAILS ....................................................................................4
1.2.2 CABLE CONNECTION DETAILS ...................................................................................................6
1.2.3 3L-SP/AP CONTROL PANEL –POWER ON .................................................................................7
1.3 TESTING PROCEDURE........................................................................................................................7
1.4 FALSE ALARM TROUBLESHOOTING...................................................................................................8
1.5 TAG OR LABEL FOR SENSING CABLE .................................................................................................8
1.6 HOLD DOWN CLIP FOR SENSING CABLE............................................................................................9
1.7 3L-SP/AP PANEL MOUNTING HOLE DIMENSIONS ............................................................................9
CHAPTER 2 PRODUCT SPECIFICATION.............................................................................................. 10
2.1 GENERAL FEATURES........................................................................................................................10
2.2 ENVIRONMENTAL RATINGS ............................................................................................................11
2.3 POWER REQUIREMENTS .................................................................................................................11
2.4 POWER RELAYS SWITCHING CHARACTERISTICS .............................................................................11
2.5 SUPERVISING CHANNEL ..................................................................................................................11
2.6 SERIAL COMMUNICATION INTERFACE............................................................................................11
2.7 COMPLIANCE TO INTERNATIONAL STANDARDS.............................................................................11
CHAPTER 3 PRODUCT SELECTION GUIDE.......................................................................................... 12
3.1 3L-SP/AP PANEL WITH MULTI ZONES .............................................................................................12
3.2 3L-SP/AP PANEL FAIL SAFE LOOP BACK CONNECTION DETAILS .....................................................12
3.3 3L-SP/AP PANEL WITH EXTERNAL RELAY AND SOLENOID VALVE...................................................14
3.4 3L-T-JOINT CONNECTION DETAILS..................................................................................................15
3.5 3L-DS WITH MULTI ZONE CONNECTION DETAILS...........................................................................16
3.6 3L-SP WITH 3L-SP/AP CONNECTION DETAILS .................................................................................17
3.7 RS485 MODBUS COMMUNICATION PROTOCOL ............................................................................18
CHAPTER 4 COMMUNICATION PROTOCOL: MODBUS PARAMETERS OF 3L-SP/AP ............................. 19
CHAPTER 5 MAINTENANCE SERVICE PROCEDURE ............................................................................ 20
5.1 MAINTENANCE SERVICE..................................................................................................................20
5.2 MANUFACTURING PRODUCT INFORMATION AND CONTACT........................................................20

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5.3 TESTING & COMMISSIONING CHECK LIST.......................................................................................21
CHAPTER 6 TROUBLESHOOTING GUIDE ........................................................................................... 25
6.1 TROUBLESHOOTING........................................................................................................................25
6.2 TROUBLESHOOTING FALSE ALARMS AFTER INSTALLATION ...........................................................26
6.2.1 CONTINUOUS FALSE ALARM - POSSIBLE SCENARIOS: ............................................................27
6.2.2 INTERMITTENT FALSE ALARM - POSSIBLE SCENARIOS: ..........................................................29
CHAPTER 7 APPLICATIONS .............................................................................................................. 33

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CHAPTER 1 QUICK GUIDE TO INSTALLATION
1.1 INTRODUCTION
3L-SP/AP is an advance panel of Early Warning Leak Locating System. Once leak is detected, it responses
within 18 seconds and provide liquid leakage location accurately. This panel shall be mounted directly on
the wall or within the enclosure box.
General Features:
LCD with backlight –4 lines, up to 35 characters
Sensing Cable Length –up to 200m per panel
Communication interface with BMS/EMS & High level RS485/Modbus interface protocol
4 x Relay (2-Trouble relay & 2-Leak relay)
Alarm by Buzzer (90dB max.) and LED indicator
1.2 3L-SP/AP PANEL WIRING DETAILS
1.2.1 3L-SP/AP PANEL PIN NUMBER DETAILS
Figure 1: 3L-SP/AP PANEL
A
B
F
C
D
E
G H I
1
2
3
4
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
J
K
L

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Pin number
Details
Pin number
Details
Leader cable - RED
Trouble Relay –NO
(Normally Open)
Leader cable - WHITE
Trouble Relay - COM
Leader cable - GREEN
Trouble Relay –NC
(Normally Close)
Leader cable - BLACK
Leak Relay –NO
(Normally Open)
N.A
Leak Relay - COM
N.A
Leak Relay –NC
(Normally Close)
N.A
Leak Relay –NO
(Normally Open)
MODBUS - COM
Leak Relay - COM
MODBUS - (+) ve
Leak Relay –NC
(Normally Close)
MODBUS - (-) ve
AC Supply 100-240V - LIVE
Trouble Relay –NO
(Normally Open)
AC Supply 100-240V - NEUTRAL
Trouble Relay - COM
AC Supply 100-240V - EARTH
Trouble Relay –NC
(Normally Close)
Point A - - Representing move “UP” action or as digit # “1”.
Point B - - Representing “OK” action or as digit # “2”.
Point D - - Representing move “Down” action or as digit # “3”.
Point C - - Representing System Menu for “Setup” action or as digit # “4”.
When pressing “Setup” button, the LCD display will show a list of System Menu to select.
Sensor Lengths: It shall show the length of sensing cable of each monitoring zone
System Parameters:
Sound ON/OFF Setup (Password protected: Default password is “12341234”)
-To permanently turn ON or OFF the Alarm/Buzzer.
System Setup (Password protected: Default password is “12341234”)
-Modbus Interface
oFor interfacing with high level Building Management System (BMS) or SP
panel. Can assign from 1 to 100 numbers of code.
-Time/Date Setup
oTo set or adjust Time and Date.
B
C
A
D
2
4
3
5
1
14
15
18
16
17
19
20
21
7
6
9
8
10
13
11
12
22
23
24
25
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Point - Representing Alarm “Sound OFF” action or as digit # “5”.
Point C - - Representing “System LCD display, displays the operation process of 3L-SP/AP panel.
Point B - - Representing “Power LED”.
Point D - - Representing “Leak LED”.
Point C - - Representing “Trouble LED”.
Point B - - Representing DIP switch. Always default number #1.
Point D - - Representing sensitivity adjustment.
Point C - - Representing sensing cable total length adjustment.
1.2.2 CABLE CONNECTION DETAILS
Sensing cable connection:
Follow the color code such as R-Red, W-White, G-Green & B-Black by using leader cable.
Output (To Panels):
N.A
MODBUS (To 3L/SP,3L-SP/DP,BMS OR EMS):
Connect RS485 communication cable to Building Management System (BMS) or
Environment Management System (EMS).
E
F
G
H
I
J
K
L
Figure 2: Schematic diagram for 3L-SP/AP with one zone

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Trouble Relay:
Sensing cable break or Power failure will activate this Trouble Relay.
Number of “Trouble” Relays: 2 units, Single Pole Double Throw (SPDT).
Leak Relay:
Liquid leaked detected on the sensing cable will activate this “Leak” Relay.
Number of “Leak” Relays: 2 units, Single Pole Double Throw (SPDT).
Power Supply:
100VAC~240 VAC input power supply. (Optional: 12 VAC/12 VDC or 24VAC/24VDC is
available upon request. Battery Backup option is also available upon request.)
1.2.3 3L-SP/AP CONTROL PANEL –POWER ON
Check all power supply cable, dry contacts are properly connected (see all detail wires connection
indication under section 1.2).
Switch ON AC Power to 3L-SP/AP
Check 3L-SP/AP in TEST mode or self-initialization:
An audible alarm/buzzer sound.
“POWER” LED turn on as GREEN when power supply is in normal condition.
“LEAK” LED turn off when all sensing cable do not detect any liquid leakage.
o“LEAK” LED will turn on RED when leak occur at any Control Panel.
“TROUBLE” LED turn off when all wires are properly connected
“TROUBLE” LED will turn on YELLOW when sensing cable break occur.
Check LCD displays “ELSA ADV. SYSTEMS SUPERVISION <ON>” after self-initialization has
completed and all are under normal condition.
“Time” is display on the top left of the LCD.
“Date” is display on the top right of the LCD.
1.3 TESTING PROCEDURE
Leak Test:
Pour some drop of liquid (to simulate liquid leakage) on the floor.
Check red “Leak” LED turns ON continuously.
Check display “LEAK” and leak location in meter.
Check Buzzer continuous sound.
Leak Relay/Dry Contact will be activated.
Removed all liquid with dry cloth in spiral way and dry the cable.
Check 3L-SP/AP, it will clear the fault automatically and the “Leak” LED turns OFF, Buzzer stops
sounding and display “LEAK CLEARED” then comes back normal.
LCD display will show “Date, Time and SUPERVISION (ON)”
Note: 3L-SP/AP shall detect multi leak (1st leak and 2nd leak), but 3L-SP/AP panel cannot show accurate
leak location if the previous leakage alarm not be cleared.

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Cable Break Test:
Disconnect the end termination point (Remove end cap)
Check red “Trouble” LED turns ON.
Check display “CABLE BREAK”.
Check Buzzer intermittent sound.
Trouble Relay/Dry Contact will be activated.
Reconnect end termination point.
Check 3L-SP/AP, it will clear the fault automatically and the “Trouble” LED turns OFF, Buzzer
stops sounding and display “CABLE BREAK CLEARED” then comes back to normal.
LCD display will show “Date, Time and SUPERVISION (ON)”
Note: During Cable Break, 3L-SP/AP still able to detect all preceding cables for leakage alarm.
1.4 FALSE ALARM TROUBLESHOOTING
Cable break alarm
Check the entire cable length for a cut or shearing which cause cable break.
Check all 4 wires (R, W, G, B) connections on sensing cable for continuity by a multi-meter.
oBy using the multi-meter measure the cable resistance (Red &black, white & greed).
The resistance for sensing cable is 25 Ohm/meter.
Leakage alarm
Check the sensing cable for proper installation and avoid contact with metals (or other
conductive elements) which cause leak.
Check sensing cable to identify any badly contaminated by some chemical for unknown
reason.
If the false alarm still not clear Refer CHAPTER 6troubleshooting guide.
1.5 TAG OR LABEL FOR SENSING CABLE
It is recommended to place 3m to 5m per tag or label.
To determine the tag or label location exactly, simulate a leak at that point and get the leak
location from 3L-SP/AP panel. Write the distance on the tag or label.
Figure 3: 3L-Tag for sensing cable

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1.6 HOLD DOWN CLIP FOR SENSING CABLE
It is recommended to place hold down clip with a spacing of 1m per clip.
For corner or any bending angle area, use more clips per 1m.
Use more hold down clip to isolated the sensing cable with the contact of metals.
1.7 3L-SP/AP PANEL MOUNTING HOLE DIMENSIONS
Refer the above figure to get the dimension details for the mounting purpose of 3L-SP/AP panel.
55mm
Figure 4: 3L-HDC for sensing cable
Figure 5: 3L-SP/AP panel dimensions
222mm
146mm

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CHAPTER 2 PRODUCT SPECIFICATION
2.1 GENERAL FEATURES
Maximum accumulated length of sensing cable : 200m
Precision to locate leak location : +/-1m or 0.5%
Failsafe operation : Ability to operate in loop operation
Ability to detect liquid leakage during cable break
Display : Permanent backlight with LCD of 4 lines x 20 English characters
Sound Alarm : 90dB max. buzzer with silencing button
System Menu : Configuration Modbus slave number and sound
Time to display Leak/Trouble from supervised panel : 18 seconds typical
Liquid Leak detection data : Typically, 20mm in length of liquid (e.g. tap water) in full contact
with sensing cable, leak sensitivity is adjustable
Supervised Panels Identification : By different panel number and name with up to 35 characters
Mechanical dimensions : Rugged ABS UL-VO case of 222 x 146 x 55mm
Ingress Protection : Dust-and splash-proof IP 65