RLE LD2000 User Manual

Leak Detection

LD2000

User Guide

Copyright and Trademark Notices

© Raymond & Lae Engineering, Inc. 2011. All rights reserved. RLE® is a registered trademark and
Seahawk™, Falcon™, and Raptor™ are trademarks of Raymond & Lae Engineering, Inc. The
products sold by Raymond & Lae Engineering, Inc. are subject to the limited warranty, limited liability,
and other terms and conditions of sale set forth at http://rletech.com/RLE-Terms-and-Conditions.html.

Revision History

Rev. No. Date

2.0 June 2010

2.1 October 2010

3.0 December 2010

3.1 February 2011

Note: As necessary, blank pages are added to make the page count even.

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Product Registration

Product registration helps RLE Technologies inform owners of:

• Product upgrades

• Firmware enhancements

• New products and technologies

• Special offers available only to registered users

Submit registration information on the Support/Product Registration webpage at www.rletech.com.

Any information provided to RLE Technologies through the registration form will be regarded as
confidential. RLE will not sell or distribute any of the information to third parties. To read our Privacy
Policy, please visit our website: www.rletech.com.

Technical Support

Personal assistance is available Monday through Friday, from 8:00 a.m. to 5:00 p.m. MST.

A request for assistance may be sent to [e-mail].

Otherwise, please call us directly at: [phone], and press “2” for technical support.

The following information is located on the bottom of each LD2000 unit. Please have this information
available whenever a technical support call is placed:

Product Model Number

Product Serial Number

Product Manufacture Date

970.484.6510 3 rletech.com

RLE Product Warranty

Seller warrants to the Ultimate Purchaser (the purchaser who buys for use and not for resale) that all
products furnished under this order and which are manufactured by Seller will conform to final
specifications, drawings, samples and other written descriptions approved in writing by Seller, and will be
free from defects in materials and workmanship. These warranties shall remain in effect for a period of
twelve (12) months after shipment. If the Seller installs the equipment or supplies technical direction of
installation by contract, said one year shall run from the completion of installation, provided installation is not
unreasonably delayed by Ultimate Purchaser. Parts replaced or repaired in the warranty period shall carry
the unexpired portion of the original warranty. A unit placed with the purchaser on consignment and then
later purchased will be warranted for twelve (12) months from the time the Seller receives notification of the
Purchaser's intent to purchase said consigned item. The foregoing is in its entirety is subject to the provision
that in no case will the total warranty period extend beyond 18 months from date Seller ships equipment
from point of manufacture.

Products are NOT life and safety certified. In no event shall the Seller be liable for loss, damage, or expense
directly or indirectly arising from the use of the units, or from any other cause, except as expressly stated in
this warranty. Seller makes no warranties, express or implied, including any warranty as to merchantability
or fitness for a particular purpose or use. Seller is not liable for and Purchaser waives any right of action it
has or may have against Seller for any consequential or special damages arising out of any breach of
warranty, and for any damages Purchaser may claim for damage to any property or injury or death to any
person arising out of its purchase or the use, operation, or maintenance of the product. Seller will not be
liable for any labor subcontracted or performed by Purchaser for preparation of warranted item for return to
Seller's factory or for preparation work for field repair or replacement. Invoicing of Seller for labor either
performed or subcontracted by Purchaser will not be considered as a liability by the Seller.

The liability of Seller hereunder is limited to replacing or repairing at Seller's factory or on the job site at
Seller's option, any part or parts which have been returned to the Seller and which are defective or do not
conform to such specifications, drawings or other written descriptions; provided that such part or parts are
returned by the Ultimate Purchaser within ninety (90) days after such defect is discovered. The Seller shall
have the sole right to determine if the parts are to be repaired at the job site or whether they are to be
returned to the factory for repair or replacement. All items returned to Seller for repair or replacement must
be sent freight, prepaid to its factory. Purchaser must obtain Seller's Return Goods Authorization prior to
returning items. The above conditions must be met if warranty is to be valid. Seller will not be liable for any
damage done by unauthorized repair work, unauthorized replacement parts, from any misapplication of the
item, or for damage due to accident, abuse, or act of God.

This warranty shall be exclusive of any and all other warranties express or implied and may be modified only
by writing signed by any officer of the Seller. This warranty shall extend to the Ultimate Purchaser but to no
one else. Accessories supplied by Seller but manufactured by others carry any warranty the manufacturers
have made to Seller and which can be passed on to the Ultimate Purchaser.

Seller makes no warranty with respect to whether the products sold hereunder infringe any patent, U.S. or
foreign, and Purchaser represents that any specially ordered products do not infringe any patent. Purchaser
agrees to indemnify and hold Seller harmless from any liability by virtue of any patent claims where
Purchaser has ordered a product conforming to Purchaser's specifications, or conforming to Purchaser's
specific design.

Purchaser has not relied and shall not rely on any oral representation regarding the Product sold hereunder
and any oral representation shall not bind Seller and shall not be part of any warranty.

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Contents

1 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Mechanical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Reference Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2 Connections and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

TB1: Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

P1: Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

TB2: Cable Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

TB3: Summary Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

P4: EIA-232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SW3: EIA-485 Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

TB4: EIA-485 Modbus Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

P3: RJ45 Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Installing the LD2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Connecting the SeaHawk Leak Detection Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Securing Cable to the Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Applying Power to the LD2000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Accessing the Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Configuring Network Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4 Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Home. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Historical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Trend Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Leak Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Zone Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Zone 1-8 Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Network Settings/ IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Web Settings/ Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Email/DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

NTP (Network Time Protocol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

SNMP/Syslog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Modbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

BACnet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Alarm Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

System Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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5 Modbus Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Implementation Basics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Modes of Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Slave Address Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Function Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Data Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Error Check (Checksum) Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5-1.2 Exception Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Packet Communications for the LD2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Function 03: Read Output Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Function 04: Read Input Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Function 06: Preset Single Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Function 16: Preset Multiple Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

RTU Framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A Firmware Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Preliminary Steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Loading Flash Firmware Using MIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Loading Flash Firmware Using TFTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

B Leak Detection Modbus Master. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Connecting Distance Read Panels to the LD2000 (EIA-485 Port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Connecting Distance Read Panels to the LD2000 (Ethernet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Configuring the LD2000 Modbus Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

C Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

D Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

E Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

970.484.6510 6 rletech.com

Figures

1 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2 Connections and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 2.1 LD2000 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 3.1 SeaHawk Water Leak Detection Cable (Sensing Cable) . . . . . . . . . . . . . . . 21

Figure 3.2 Cable Installation Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4 Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 4.1 LD2000 Log In Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 4.2 LD2000 Home Page0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 4.3 Historical Data Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 4.4 Trend Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 4.5 Configuration Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 4.6 Latching Alarms/Leak Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 4.7 Zone Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 4.8 Link Configuration Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 4.9 IP Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 4.10 Web Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 4.11 E-mail Configuration Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 4.12 Network Time Protocol (NTP) Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 4.13 SNMP/Syslog Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 4.14 LCD-240 Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 4.15 Modbus/EIA-485 Configuration (Johnson N2 Shown). . . . . . . . . . . . . . . . . . 45

Figure 4.16 BACnet Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 4.17 Clock Configuration Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 4.18 Alarm Management Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 4.19 System Management Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 4.20 Exit to Bootloader Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

5 Modbus Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

A Firmware Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure A.1 System Management Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure A.2 Choosing a Firmware File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure A.3 Firmware Load Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figure A.4 Current Firmware Version As Shown in LD2000 Interface . . . . . . . . . . . . . . 62

B Leak Detection Modbus Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Figure B.1 LD2000 EIA-485 Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Figure B.2 Address Assignment for Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Figure B.3 Modbus/EIA-485 Configuration (Johnson N2 Shown) . . . . . . . . . . . . . . . . . 67

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Figure B.4 Zone Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Figure B.5 Modbus/Physical Zone Configuration Page . . . . . . . . . . . . . . . . . . . . . . . . . 68

Figure B.6 LD2000 Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure B.7 Individual Slave Unit Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

C Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

D Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

E Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

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970.484.6510 9 rletech.com

Notes:

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Tables

1 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2 Connections and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4 Web Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 4.1 Link Settings Menu Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 4.2 Zone Configuration Menu Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 4.3 Email Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 4.4 NTP Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Table 4.5 SNMP/Syslog Menu Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 4.6 Modbus Configuration Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 4.7 BACnet Configuration Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 4.8 Alarm Management Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Table 4.9 System Management Menu Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5 Modbus Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Table 5.1 Exception Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Table 5.2 Read Output Register Packet Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Table 5.3 Output Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Table 5.4 Read Input Registers Packet Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Table 5.5 Input Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Table 5.6 Status Flags (Register 30001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table 5.7 Status Flags (Register 30010) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table 5.8 Status Flags (Register 30011) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table 5.9 Status Flags (Even Registers 30012-30040) . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Table 5.10 Preset Single Register Packet Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Table 5.11 Preset Multiple Registers Packet Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Table 5.12 Response Sample. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A Firmware Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

B Leak Detection Modbus Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

C Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

D Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Table D.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

E Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Table E.1 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

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1.1. Description

The LD2000 is a complete monitoring system that detects and reports the presence of water
and other conductive liquids. The LD2000 couples the SeaHawk Leak Detection Cable
(sensing cable) with an advanced control panel. Each LD2000 monitors up to 2000 feet
(609m) of sensing cable. When a conductive liquid comes in contact with the sensing cable,
the distance to the leak is shown on the LD2000's front panel display. Alarm notifications are
distributed via user-configurable Modbus (EIA-485 or TCP/IP), BACnet (IP), SNMP, SMTP
(email), or Relay output.

C HAPTER

CHAPTER 0PRODUCT OVERVIEW

1.2. Operation

When the LD2000's analog circuitry measures a current in excess of the user-defined leak
threshold, the unit's microprocessor computes the distance to the leak. The unit then
annunciates the leak and logs the alarm in its event log. The summary relay has one output.
The LD2000 provides a webpage interface to allow users to check updates on the unit's
conditions via the Internet or local area network. The LD2000 also provides Modbus outputs
via EIA-485, twisted-pair wire, or TCP/IP.

The LD2000 is a supervised system—it continually monitors the cable for continuity. A cable
break or excess contamination of the cable causes a cable break indication and activates a
relay. The LD2000 sends alarm notifications to predetermined recipients when an alarm
sounds. The LD2000 produces an alarm during the following conditions:

Leak detection

Cable break

Cable contamination

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1 Product Overview

1.3. Mechanical Description

The LD2000 is built with one circuit board. The main board is mounted inside of the
enclosure. A reset switch is provided inside of the enclosure on the board to reset the
microprocessor without cycling power to the unit.

1.4. Installation

The LD2000 is a wall-mounted device. Before applying power to the unit, ensure that all
connections are correct and all screw terminals are secure. The LD2000 is powered by 24
VAC or 24 VDC power. DO NOT connect 120/230 VAC to the unit, or damage will occur to
the circuitry.

1.5. Reference Map

Users are advised to purchase a framed reference map (part #FM1114) for use with the
LD2000 to help locate any detected leaks along the sensing cable; to view a sample map, go to
the SeaHawk Accessories webpage at www.rletech.com. Once all the sensing cable is
installed, compare this reference map with the actual cable installation. Note any discrepancies
and return the map to the original author for correction. Keep a copy for use until the map is
revised.

1.6. Web Interface

The LD2000's webpage interface provides remote information updates via network
communications. The interface's menu structure is as follows:

Home

– Alarm Status

– Cable Length

– Cable Current

– Leg 1 Resistance

– Leg 2 Resistance

– Alarm Delay Counts

– Last Alarm Time

– Model

– Flash Application

– Flash Appl. Size

– Bootloader Version

– MAC Address

– IP Address

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1 Product Overview

– Net Mask

– Def Route

– Current Time

– §septum

Further webbed interface information can be found in Chapter 4, “Web Interface” on page 29.

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1 Product Overview

Notes:

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C HAPTER

CHAPTER 0CONNECTIONS AND SETTINGS

The LD2000 contains one circuit board. All connections are accessible when the unit is inside
of its enclosure. The connectors on the main board, found at the bottom of Figure 2.1, are
labeled TB1 through TB4 and P1 through P4.

Figure 2.1

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LD2000 Connections

2 Connections and Settings

2.1. Reset

When held this button will reset the unit and clear any alarms. The LD2000 will then recheck
for any alarm conditions.

2.2. Connections

2.2.1 TB1: Input Power

This is an optional two position connector—you may also use P1 for input power—with the
following connections:

TB1-1 24VDC positive (+)
TB1-2 24VDC negative (-)

2.2.2 P1: Input Power

This is an optional barrel connection for input power-you may also use TB1 for input power­with the following connection:

Inside positive (+)
Outside negative (-)

Power is recommended to be supplied by a 24VDC wall adapter power supply (part
#WA-DC-24-ST), which is not included with the LD2000 and can be purchased separately.
For more information on RLE power supplies, visit the SeaHawk Accessories webpage at

www.rletech.com, or contact RLE.

2.2.3 TB2: Cable Interface

The SeaHawk Water Leak Detection Cable (sensing cable) connects to TB2. A 15 foot
(4.57m) non-sensing leader cable is required to connect the LD2000 to the sensing cable. The
non-sensing cable is included in a leader cable kit (part #LC-KIT; purchased separately).
Connect the cable wires to TB2 as follows:

TB2-1 White wire
TB2-2 Black wire
TB2-3 Green wire
TB2-4 Red wire

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2 Connections and Settings

2.2.4 TB3: Summary Relay

Terminal TB3 is a Form C Relay Output. This relay provides alarm notification when a leak is
detected, a cable fault is detected, or a cable contamination is detected.

The three contacts on TB3 are labeled NO, C, and NC. Connect the alarm relay wires to TB3
as follows:

TB3-1 Leak alarm normally open (NO)
TB3-2 Leak alarm common (C)
TB3-3 Leak alarm normally closed (NC)

Both relays (all alarms) can be configured to be latched or unlatched. A latched alarm requires
a manual reset of the system once a leak or cable problem is no longer present; see 4.3.1,
“Leak Settings” on page 33 for configuration instructions.

2.2.5 P4: EIA-232 Connector

The EIA-232 uses a baud rate of 9600. The EIA-232 port is set to 8 databits, no parity, and 1
stop bit (8, N, 1). A straight through cable should be used to connect a terminal or PC to the
LD2000. This connection should only be used for setting the IP address, advanced diagnostics,
uploading firmware, and troubleshooting.

2.2.6 SW3: EIA-485 Termination

Switch SW3, when switched on (down position), places a termination resistor across the + and

- terminals of the EIA-485 port. This is used when the LD2000 is the last unit on a EIA-485
network.

2.2.7 TB4: EIA-485 Modbus Port

TB4 connects to a EIA-485 network. A grounded shield contact is provided for connection to
shielded cable. If the shield contact is used, verify the power connector is properly grounded
and there is no voltage potential between units on the network.The EIA-485 port is set to 8
databits, no parity, and 1 stop bit (8, N, 1). Connect the EIA-485 wires to TB4 as follows:

TB3-1 A (+)
TB3-2 B (-)
TB3-3 Shield

2.2.8 P3: RJ45 Network

A 10/100 BaseT Ethernet connection is available to connect the LD2000 on a local area
network. Use a crossover cable (shipped with the LD2000; blue cable with yellow ends) for
initial connection and configuration. The default settings are as follows:

IP Address: 10.0.0.188
Subnet Mask: 255.255.255.0

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2 Connections and Settings

Notes:

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3.1. Installing the LD2000

The LD2000 is a wall mounted device. The four mounting holes on the sides of the unit are
spaced 7.5 inches (.19m) apart. Use drywall anchors if securing the unit to drywall.

C HAPTER

CHAPTER 0INSTALLATION

3.2. Connecting the SeaHawk Leak Detection Cable

The LD2000 is shipped with a 15-foot (4.57m) leader cable. One end of this leader cable
connects to the LD2000 controller, and the other end connects to the SeaHawk leak detection
cable (sensing cable). Connect each end of the leader cable as follows:

1 With the screws of the terminal block connector on the LD2000 facing up, connect the four

stripped, bare wires of the leader cable to the terminals in this order, from left to right:
white, black, green, red.

Note If the terminal connector is removed from the end of the cable, make sure the wires are in

this same order when the connector is reapplied.

2

Unscrew the end-of-line (EOL) terminator from the other end of the leader cable.

3 Attach the first length of leak detection cable (sensing cable) to the leader cable.

Figure 3.1

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SeaHawk Water Leak Detection Cable (Sensing Cable)

3 Installation

WARNING

4 Route the sensing cable according to a cable layout diagram, if provided.

5 Secure the EOL terminator on the unoccupied end of the sensing cable.

3.2.1 Securing Cable to the Floor

Secure the sensing cable to the floor with either J-clips (part #JC), or one of the other approved
methods shown in Figure 3.2. Available from RLE and designed specifically for use with
sensing cable, J-clips (part #JC) are the manufacturer's recommended installation method and
can be installed as follows:

Place one J-clip every 5 to 6 feet (1.52 to 1.83m) along the length of the sensing cable and

one at each turn of the cable. Use more J-clips if a “tighter” configuration is required.

If the cable is installed over an obstruction, clip the cable on both sides, as close to the

obstruction as possible.

Do not install the cable directly in front of an air conditioner. Allow a minimum of 4
to 6 feet (1.22 to 1.83m) between the unit and the cable. If the cable is too close to
the air conditioning unit’s air stream, the moisture from the humidifier may cause
false leak readings. If the cable must be installed in front of an air conditioning
unit, place the J-clips 12 to 18 inches (.305 to .457m) apart.

Finish the end of the SeaHawk leak detection cable (sensing cable) with the end terminator

(EOL) that is shipped with the LD2000. If the EOL terminator is not present, a cable fault
will register. Note any variances between the cable layout diagram and the actual cable
installation.

Figure 3.2

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Cable Installation Methods

3.2.2 Applying Power to the LD2000

Once the SeaHawk leak detection cable (sensing cable) is connected to the unit, power can be
applied. The LD2000 operates on 24VDC or 24VAC power. A power supply is not included
with the LD2000. RLE recommends its 24VDC power supply (part #PSWA-DC-24), which
can be purchased separately. For more information on RLE power supplies, visit

www.rletech.com, or contact RLE.

Note RLE recommends that an isolated power supply be used.

Before applying power to the unit, ensure all cable and communication connections are
complete. The LD2000 begins booting once power is applied. Wait approximately one minute.
No alarm should be present.

On the webpage interface, the cable length is displayed. If this reading varies by more than
±5% of the actual length of cable installed, verify the installation. The LD2000 should not
require any calibration. If any calibration is required, verify that the cable current is zero
before calibrating or false, inaccurate readings will occur.

Through the webpage submenus, you may set the clock, system name, alarm configuration,
feet/meters, etc.

3 Installation

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3 Installation

3.2.3 Communication

IMPORTANT Consult your IT administrator before performing these steps.

3.2.3.1 Accessing the Configuration Menu

You will use the Configuration Menu to configure communications for the LD2000.

1 Plug the crossover cable (included with the LD2000) into the computer that will be used to

configure the LD2000.

Note This cable is not intended to be connected to a network hub.

Connect the other end of the crossover cable to the Ethernet port on the back of the

2

LD2000.

Note Alternatively, you could use the LD2000’s EIA-232 interface to access the LD2000. Refer to

the LD2000 User Guide (available at
http://www.rletech.com) for instructions.

3

Write down the computer’s current IP address, subnet mask, and default gateway. Change
these items temporarily so that the computer can communicate with the LD2000.

LD2000 default IP address: 10.0.0.188
LD2000 default subnet mask: 255.255.255.0

4 Access the LD2000 through a Web browser by typing the LD2000’s default IP address

(10.0.0.188) into the location bar and pressing Enter.

5 Enter the following:

Default User Name: ld2000 (case sensitive)
Default Password: (No default password. Leave this field blank.)

Once you enter this information, the home page for the LD2000’s web interface displays.

6 Continue to the following section to configure network communication for the LD2000.

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