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RLE Technologies LD1500 User Manual

Leak detection
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LD1500
User Guide
Version 3.5

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Summary of Contents for RLE Technologies LD1500

  • Page 1 LD1500 User Guide Version 3.5...
  • Page 2 Revision History Rev. No. Date Rev. No. Date June 2010 March 2018 October 2010 April 2019 February 2011 April 2013 August 2014 September 2015 December 2016 LD1500 User Guide 800.518.1519...
  • Page 3 Product Serial Number Product Manufacture Date The LD1500 is not a field-serviceable item and must be sent back to RLE Technologies for mechanical repair. Power must be disconnected (unplugged) from the LD1500 any time the unit is mechanically serviced. Physically unplug power from the unit any time you are making wiring connections to or from the LD1500.
  • Page 4 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. LD1500 User Guide 800.518.1519...

  • Page 5: Table Of Contents

    Set the LD1500's IP Address Using a Web Browser....... 19...
  • Page 6 Packet Communications for the LD1500 ........
  • Page 7 Figure 2.1 LD1500 Connections and Indicators ....... . . 13 Installation .
  • Page 8 970.484.6510 rletech.com...
  • Page 9 Table C.1 Troubleshooting Problems with the LD1500 ......49 Technical Specifications ..........51 Table D.1...
  • Page 10 970.484.6510 rletech.com...

  • Page 11: Product Overview

    When a conductive liquid comes in contact with the sensing cable, an Alarm LED is illuminated red on the front panel, the distance to the leak is shown on the LD1500’s web page, and alarm notifications are distributed via user-configurable Modbus (EIA-485 RTU or TCP/IP), BACnet (EIA-485 MS/TP or IP), or SNMP.

  • Page 12: Mechanical Description

    Product Overview 1.3. Mechanical Description The LD1500 is built with one circuit board. The main board is mounted inside of the enclosure. 1.4. Installation The LD1500 is a wall mounted device. Before applying power to the unit, ensure that all connections are correct and all screw terminals are secure.

  • Page 13: Connections And Indicators

    NDICATORS HAPTER The LD1500 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 the following photograph, are labeled TB1 through TB3 and P1 through P4.

  • Page 14: Connections And Default Settings

    TB2-4 Red wire 2.1.4 P2: RJ45 Network A 10/100 Ethernet connection is available to connect the LD1500 on a local area network. Use a crossover cable for initial connection and configuration. The default settings are as follows: IP Address: 10.0.0.188 Subnet Mask: 255.255.255.0...

  • Page 15: Sw1.1: Ethernet Port Configuration

    2.1.6 SW1.2:EIA-485 Termination Switch SW1.2, when switched ON (DOWN), places a termination resistor across the + and - terminals of the EIA-485 port. This is used when the LD1500 is the last unit on an EIA-485 network. 2.1.7 TB3: EIA-485 Modbus Port TB4 connects to an EIA-485 network.

  • Page 16: Connections And Indicators

    Connections and Indicators LD1500 User Guide 800.518.1519...

  • Page 17: Installation

    HAPTER 3.1. Installing the LD1500 The LD1500 is a wall mounted device. There are four mounting holes on the sides of the unit spaced 6.6 inches (.167m) apart. Use drywall anchors if securing the unit to drywall. 3.2. Connecting the Leak Detection Cable The LD1500 is shipped with a 15-foot (4.57m) leader cable.

  • Page 18: Securing Cable To The Floor

    If the cable must be installed in front of an air conditioning ARNING unit, place the J-clips 12 to 18 inches (.305 to .457m) apart. Figure 3.2 Cable Installation Methods LD1500 User Guide 800.518.1519...

  • Page 19: Applying Power To The Ld1500

    3.4. Communication The LD1500 will not communicate over a user's network the first time it is connected to the network. The manufacturer programs the LD1500 with a default IP address: 10.0.0.188, subnet: 255.255.255.0 and gateway (Def Route): 10.0.0.1. These settings must be changed to IP addresses that correspond with the user's network before the LD1500 can communicate over the network.

  • Page 20: Set The Ld1500'S Ip Address Using An Eia-232 Connection

    Both should be accessible via the network. Connect the PC and the LD1500 to the network. From the PC Web browser, type in the IP address of the LD1500. Enter the user name and password as stated above to verify network access to the LD1500.

  • Page 21: Calibrate Cable Resistance

    A system configured using base resistance values will still be very accurate. If you wish to fine tune the resistance value of your LD1500 system to make it more precise, you may do so. This will increase the accuracy of the system, and bring the LD1500’s reported installed cable length value in line with the actual length of cable installed.

  • Page 22: Web Interface

    380 feet 0 feet + 50 feet + 330 feet The actual resistance of the cable installed with this LD1500 is 2.881 ohms per foot. Replace the resistance per foot setting in the LD1500 with this newly calculated value. This can be edited on the Leak Configuration page of the web interface (Configuration >...

  • Page 23: Web Interface

    The LD1500’s network connection allows users to configure and view current information from the LD1500. When logging on to the LD1500, navigate to the unit's IP address in a Web browser. A prompt will ask for a username and password. Enter in the appropriate information.

  • Page 24: Figure 4.2 Ld1500 Home Page

    Page loaded at: The date and time the information on this page first loaded Refresh: The number of times the data within the fields has been refreshed. This number increases as the LD1500 is pinged for new data. Timeout: The opposite of Refresh. If the LD1500 goes down while this page is viewed, the timeout field will track how long communications are interrupted.

  • Page 25: Alarm Log

    DESCRIPTION provides details about the current alarm/event (e.g. Leak, Cable Fault, etc.). Figure 4.3 Alarm Log Page 4.3. Configuration The Configuration page provides access to a menu of available settings. Options for these setting are detailed below. Figure 4.4 Configuration Menu rletech.com LD1500 User Guide...

  • Page 26: Leak Settings

    A higher number produces a less sensitive system, so more contamination is required to trigger an alarm. Enter a value between 20 and 295 microamps. Default setting: 40uA. Table 4.1 Leak Configuration Options LD1500 User Guide 800.518.1519...
  • Page 27 2.000 and 4.250, with one number in the tens place and three numbers past the decimal point (x.xxx). Default setting: 2.800 ohms per foot. Measurement Select either feet or meters to calibrate the LD1500 to the preferred Display unit of measure. All distance calculations will adjust accordingly. Default setting: Feet Table 4.1 Leak Configuration Options...

  • Page 28: Web Settings

    LD1500. A Read-Only level password allows users to only view the information and settings of the LD1500. No settings or changes may be submitted to the unit. The Read/Write level password allows users to change settings and configurations on the LD1500 as well as view all information in the unit.

  • Page 29: Network/Ip Settings

    Web Interface 4.3.3 Network/IP Settings The Network settings allow users to change the network configuration of the LD1500. IP address, Subnet Mask, and Default Route (Gateway) may be changed from this menu. Figure 4.7 Network/IP Settings Option Description MAC Address The MAC address is a unique identifier set by the manufacturer, and is non-editable.

  • Page 30: Snmp

    Figure 4.8 SNMP Configuration Option Description System Name Designate a unique name for the LD1500. This name appears on the LD1500 Main Menu and is included as part of email notifications. System Contact Designate the individual responsible for the LD1500.

  • Page 31: Snmp/Syslog Communities 1 & 2

    LD1500 through a MIB browser. Select “Write” if the device will have Read/Write network access. This allows the LD1500 to be configured over the network. Select “Traps” if the device will receive Traps from the LD1500. Select “Syslog” if the device will receive Syslog messages from the LD1500.

  • Page 32: Eia-485/Modbus/N2

    Web Interface 4.3.7 EIA-485/Modbus/N2 If the LD1500 will communicate via the EIA-485 port, configure the necessary options here. Figure 4.11 Modbus/EIA-485 Configuration Page Option Description Modbus/TCP/UDP Specify the slave address used on the LD1500's IP port. This Slave Unit Identifier designator is used for Modbus RTU over an Ethernet connection.

  • Page 33: Bacnet

    The LD1500 can communicate via BACnet. BACnet allows building automation and control devices to communicate, regardless of the services they perform. Before the LD1500 can communicate via BACnet MS/TP, you need to change the EIA/485 port function. This is done on the EIA-485/Modbus/N2 screen. Refer to “EIA-485/Modbus/ N2”...

  • Page 34: Bacnet Register Fd/Bdt

    Option Description Register as Foreign Register the LD1500 as a foreign device if it has an IP subnet Device at IP address that is different from the BACnet/IP network that the LD1500 seeks to join. The register foreign device message from the client to the BBMD is always from one IP device to another.

  • Page 35: Bacnet Alarm

    The amount of time in seconds between retransmissions of an APDU requiring acknowledgement for which no acknowledgement has been received. Number of APDU The maximum number of times an APDU is retransmitted. retries Table 4.7 BACnet Alarm Configuration Options rletech.com LD1500 User Guide...

  • Page 36: System Management

    Exit to Bootloader Forces the unit to stop running flash application to allow for firmware updates. Restore Factory Resets the configuration and settings on the unit to all factory Defaults defaults. Table 4.8 System Management Options LD1500 User Guide 800.518.1519...

  • Page 37: Modbus Communication

    The LD1500 is capable of communicating via the half-duplex EIA-485 serial communication standard. The LD1500 is configured to act as a slave device on a common network. The EIA- 485 medium allows for multiple devices on a multi-drop network. The LD1500 is a slave only device and will never initiate a communications sequence.

  • Page 38: Function Field

    5.1.1.2 Function Field The function field is one byte in length and tells the LD1500 which function to perform. The supported functions are 03 (Read 4xxxx output registers), 04 (Read 3xxxx input registers), 06 (Preset single register) and 16 (Preset multiple registers).

  • Page 39: Packet Communications For The Ld1500

    Packet Communications for the LD1500 5.2.1 Function 03: Read Output Registers To read the LD1500 parameter values, the master must send a Read Output Registers request packet.The Read Output Registers request packet specifies a start register and the number of registers to read.

  • Page 40: Function 04: Read Input Registers

    Modbus Communication 5.2.2 Function 04: Read Input Registers To read the LD1500 input values, the master must send a Read Input Registers request packet. The Read Input Registers request packet specifies a start register and the number of registers to read. The start register is numbered from zero (30001 = zero, 30002 = one, etc).

  • Page 41: Function 06: Preset Single Register

    Modbus Communication 5.2.3 Function 06: Preset Single Register To set a LD1500 parameter value, the master must send a Preset Single Register request packet. The Preset Single Register request packet specifies a register and the data to write to that register. The register is numbered from zero (40001 = zero, 40002 = one, etc).

  • Page 42: Rtu Framing

    Modbus Communication 5.3. RTU Framing The example below shows a typical Query/Response from a LD1500 module. Table 5.9 Response Sample Count Register Register Register Slave Function Bytes of Data Data Data CRC16 CRC16 Address Code Data MSB LSB MSB LSB...

  • Page 43: Firmware Updates

    Navigate to the LD1500’s System Management menu. From the System Management menu, click on the “Exit to Bootloader” button. You must have write access to the unit in order to do this. The LD1500 will exit the application and display a Bootloader web page.

  • Page 44: Update The Firmware Via X-Modem

    Firmware Updates From the TFTP client, Send or PUT the firmware file to the LD1500. It may take up to 30 seconds to complete the firmware upload. After one minute, refresh the LD1500 web page. Notice that the Flash field now contains the name of latest firmware.

  • Page 45: Update The Flash Firmware Via Bootloader

    Navigate to the LD1500’s System Management menu. From the System Management menu, click on the “Exit to Bootloader” button. You must have write access to the unit in order to do this. The LD1500 will exit the application and display a Bootloader web page.
  • Page 46 Firmware Updates LD1500 User Guide 800.518.1519...
  • Page 47 Place water on the cable. Verify the Leak Detected alarm through the Web interface or BMS. Compare the distance reading on the LD1500 to a reference map (if available) to verify that the LD1500 displays the correct leak location. Dry the cable and verify that the LD1500 returns to normal.

  • Page 48: B Preventive Maintenance

    Preventive Maintenance LD1500 User Guide 800.518.1519...

  • Page 49: Table C.1 Troubleshooting Problems With The Ld1500

    Control Panel will not Power Up the lower left hand terminal block on the LD1500. If no voltage is present at terminal block, check the circuit (breaker) or power supply the LD1500 control panel is powered by. If voltage is present, go to step 2.

  • Page 50: C Troubleshooting

    Power down (shut off) the control panel and remove the End-of- Line terminator (EOL) from the end of the sensing cable. Locate the first section of sensing cable from the LD1500 control panel. Where it joins to the second section of cable, disconnect and install the EOL terminator at the end of the first section of sensing cable.

  • Page 51: D Technical Specifications

    10/100BASE-T, RJ45 connector; 500VAC RMS isolation EIA-232 DB9 female connector; 9600 baud; 8 data bits, no parity, 1 stop bit EIA-485 1200, 2400, 9600, 19200 or 38400 baud (selectable); Parity: none, even or odd, 8 data bits, 1 stop bit rletech.com LD1500 User Guide...
  • Page 52 Dimensions 7.075"W x 3.625"H x 1.25"D (179.7mmW x 92.07mmH x31.75mmD) Weight 1.5 lbs. (680g) Mounting Vertical wall mount Certifications CE; ETL listed: conforms to UL 61010-1, EN 61010-1; certified to CSA C22.2 NO. 61010-1; RoHS compliant LD1500 User Guide 800.518.1519...

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