3L-DF/SP Quick User Guide
Supervising & Locating Panel (Digi-Flex System)
For Liquid Leak Detection System (LLDS)
CHAPTER 1 QUICK GUIDE TO INSTALLATION
1.1 INTRODUCTION
3L-DF/SP is an advance supervising panel of Early Warning Leak Locating System. 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
Monitoring units – up to 40 units of 3L-DF/SM50 modules.
Sensing Cable Length – up to 2,000m (50 m x 40pcs 3L-DF/SM50 Modules)
Standard 9-level leak sensitivity setting to detect liquid.
Cable break location identification.
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 PANEL WIRING & PIN NUMBER DETAILS
A
B
J C
D
E
G H I
1 5 8 11 14 17 20 23
2 6 9 12 15 18 21 24
3
4 7 10 13 16 19 22 25
Figure 1: 3L-DF/SP PANEL
Pin number Details Pin number Details
Trouble Relay – NO
1 Leader cable - PURPLE 14 (Normally Open)
2 Leader cable - BLACK 15 Trouble Relay - COM
Trouble Relay – NC
3 Leader cable - RED 16 (Normally Close)
Leak Relay – NO
4 N.A 17 (Normally Open)
5 N.A 18 Leak Relay - COM
Leak Relay – NC
6 N.A 19 (Normally Close)
Leak Relay – NO
7 N.A 20 (Normally Open)
8 MODBUS - COM 21 Leak Relay - COM
Leak Relay – NC
9 MODBUS - (+) ve 22 (Normally Close)
10 MODBUS - (-) ve 23 AC Supply 100-240V - LIVE
Trouble Relay – NO
11 (Normally Open)
24 AC Supply 100-240V - NEUTRAL
12 Trouble Relay - COM 25 AC Supply 100-240V - EARTH
Trouble Relay – NC
13 (Normally Close)
Point AA- - Representing move “UP” action or as digit # “1”.
Point BB- - Representing “OK” action or as digit # “2”.
Point DC- - Representing move “Down” action or as digit # “3”.
Point CD- - 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(ie: each
DF/SM50)
System Parameters:
Event Log Display – To display leak and/or trouble faults up to 896 events under FIFO (First-
In-First-Out) sequence.
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 (Default Slave #: 1):
o For Interfacing with high level Building Management System (BMS).
Can assign from 1 to 247 numbers of code.
- Threshold/Freezing
o Alarm Threshold
When leak is detected at sensor module, leak level is being transmitted to
panel as a digital value between 1 and 9. It allows easy filtering of
unwanted alarms at panel by setting the amount of liquid to trigger alarm.
o Monitoring ON/OFF
Freezing all zones under maintenance (ie: No alarm will be sent to BMS.)
- Time/Date Setup
o To set or adjust Time and Date
Point CE- - Representing Alarm “Sound OFF” action or as digit # “5”.
Point CF- - Representing “System LCD display, displays the operation process of 3L-DF/SP panel.
Point BG- - Representing “Power LED”.
Point DH- - Representing “Leak LED”.
Point C I- - Representing “Trouble LED”.
Point BJ- - Representing DIP switch (default number set at #1).
1.2.1 CABLE CONNECTION DETAILS
Figure 7: Schematic diagram for 3L-DF/SP with 3L-DF/SM50 modules
Cable connection:
Follow the color code such as R PURPLE, W BLACK, G RED wire by using leader
cable.
Output (To Panels):
Not Applicable.
MODBUS (To BMS/EMS):
Connect RS485 communication cable to Building Management System (BMS) or
Environment Management System (EMS).
This terminal is also use to program Zone Name (up to 35 Characters) for each Control Panel’s zone
location and PASSWORD (default password is “12341234” and it can be changed by using ONLY ELSA PC
software).
Trouble Relay:
Sensing cable break per zone, power failure or loss of RS485 communication between 3L-
DF/SP and DF/SM50 will activate this Trouble Relay.
Number of “Trouble” Relays: 2 units, Double Pole Double Throw (DPDT).
Leak Relay:
Liquid leaked detected at any of the DF/SM50 module’s sensing cable will activate this
“Leak” Relay.
Number of “Leak” Relays: 2 units, Double Pole Double Throw (DPDT).
100V~240 VAC:
100~240 VAC input power supply. (Optional: 12 VAC/12 VDC or 24VAC/24VDC is available
upon request. Battery Backup option is also available upon request.)
1.3 MANUFACTURING PRODUCT INFORMATION AND CONTACT
ELSA ADVANCED SYSTEMS PTE LTD
Address : 1004 Toa Payoh North #04-01
Singapore 318995
Tel : +65 6258 1598
Web site : www.elsaadv.com
Email : enquiry@elsaadv.com
Copyright
The documentation and the software included with this product are copyrighted 2017 by ELSA Advanced
Systems Pte. Ltd. All rights are reserved. ELSA Advanced Systems Pte. Ltd reserves the Right to make
improvements in the products described in this manual at any time without notice. No part of this manual
may be reproduced, copied, translated or transmitted in any form or by any means without the prior
written permission of ELSA Advanced Systems Pte. Ltd. Information provided in this manual is intended to
be accurate and reliable. However, ELSA Advanced Systems Pte. Ltd. assumes no responsibility for its use,
nor for any infringements of the rights of third parties, which may result from its use.
