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SeaHawk 10K User Manual

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SeaHawk 10K
User Guide
Version 2.0

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  • Page 1 SeaHawk 10K User Guide Version 2.0...
  • Page 2 © 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.
  • Page 3 A request for assistance may be sent to support@rletech.com. Otherwise, please call us directly at: (970) 484-6510, and press “2” for technical support. The following information is located on the bottom of each SeaHawk 10K unit. Please have this information available whenever a technical support call is placed:...
  • Page 4 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.

  • Page 5: Table Of Contents

    Configure the SeaHawk 10K Modbus Address ........
  • Page 6 970.484.6510 rletech.com...
  • Page 7 Figure 2.1 SeaHawk 10K Physical Inputs........
  • Page 8 rletech.com 970.484.6510...
  • Page 9 Tables Product Overview ..........11 Installation and Configuration .
  • Page 10 970.484.6510 rletech.com...

  • Page 11: Product Overview

    Capable of accommodating up to 10,000 feet (3048m) of sensing cable, the SeaHawk 10K has an audible alarm and can communicate via Modbus. As a stand-alone solution, the SeaHawk 10K provides alarm notification and numeric distances on its front panel.
  • Page 12 Product Overview User Configuration and Communication The SeaHawk 10K’s front panel display – which includes a four-digit LED panel and six LED indicators – provides information about its status, including the following: Leak detected Cable fault detected Power status Configured unit of measure Leak detection cable’s amperage value...

  • Page 13: Installation And Configuration

    Electrostatic discharge (ESD) protection 2.2. Physical Connection Overview The SeaHawk 10K contains two circuit boards: The top circuit board houses operational controls and displays. SeaHawk 10K operational information is found in Chapter 3. The lower circuit board houses the connectors for: –...

  • Page 14: Mount The Seahawk 10K

    2.3. Mount the SeaHawk 10K The SeaHawk 10K can be mounted inside a panel or on a DIN rail. The device has two adjustable orange clips on the bottom. Push the clips out to expose two screw holes that allow the device to be mounted in a panel;...

  • Page 15: Establish Physical Connections

    Installation and Configuration 2.4. Establish Physical Connections Sensing Cable Relay Output Connection Figure 2.3 Relay Output (TB1) and Sensing Cable Connection (TB2) AC/DC Power Connections (2) Modbus EIA-485 Ports (2) Figure 2.4 Power and Modbus Connections (TB3 and TB4) 2.4.1 TB1: Summary Relay (optional) Terminal Block 1 is a Form C relay output.

  • Page 16: Tb2: Leader Cable

    DIP Switch 5, SW1 - Latched or Unlatched Alarms 2.4.2 TB2: Leader Cable A 15-foot (4.57m) section of non-sensing leader cable is supplied with each SeaHawk 10K. The leader cable connects sensing cable to the SeaHawk 10K, since sensing cable cannot connect directly to the unit.

  • Page 17: Tb3 And Tb4: Input Power And Eia-485 Modbus Port

    Do not connect 120/230 VAC to the unit, or damage will occur to the circuitry. Run a power supply to the location of the SeaHawk 10K, or use a DIN rail mountable power supply and mount it next to the SeaHawk 10K.

  • Page 18: Figure 2.10 Tb3 And Tb4 Power Supply And Modbus Connections

    Installation and Configuration 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 Modbus network. Figure 2.10 TB3 and TB4 Power Supply and Modbus Connections Set the baud rate for the EIA-485 port using DIP switches 1 and 2 on SW1: Figure 2.11...

  • Page 19: Select Alarm Options

    2.5.2 Set the Re-Alarm Interval The SeaHawk 10K can be set to re-alarm – after a leak or cable fault has been detected, the alarm will be re-sent at a designated interval until the alarm condition has been resolved. This re-alarm triggers both the audible alarm and the Modbus register 30001 readout.

  • Page 20: Secure Sensing Cable To The Floor

    Attach the first length of sensing cable to the leader cable. Insert the male pins into the female connector, and twist the collar on the female side of the connector to secure. Figure 2.15 SeaHawk Sensing Cable Route the sensing cable according to your cable layout diagram. Attach additional lengths of sensing cable as necessary.

  • Page 21: Apply Power To The Seahawk 10K

    ARNING Do not connect 120/230 VAC to the unit, or damage will occur to the circuitry. An isolated power supply was run and power was connected to the SeaHawk 10K in Section 2.4.3 on page Ensure all connections are correct and all screw terminals are secure.

  • Page 22: Test The System

    Installation and Configuration 2.8. Test the System If the SeaHawk 10K is already connected to a BMS or NMS, notify monitoring personnel Note before you begin testing the system. To verify the SeaHawk 10K’s accuracy, test three points within the length of sensing cable - one at the beginning, one in the middle of the length, and another near the end of the length of cable.

  • Page 23: Operation

    3.1. Front Panel Controls and Display The front panel of the SeaHawk 10K contains a 4-character LED and series of colored LEDs that are used together to convey device status and information regarding detected leaks and cable faults. A blue button is used to cycle the 4-character LED, silence the audible alarm, and reset the alarm.

  • Page 24: Table 3.1 Front Panel Controls And Displays

    Operation Table 3.1 Front Panel Controls and Displays Front Panel Indicator Symbol Description • 4-character LED System is running in its normal operating state. SH10 • A leak, fault, or contamination has been detected. The numerical (e.g.) distance to the leak displays on the LED. A green LED lights next to the appropriate distance measurement, and either the LED next to the water drop glows red to indicate a leak, or the LED next to the wrench glows yellow to indicate cable contamination.

  • Page 25: Manage Alarms

    Operation 3.2. Manage Alarms General Guidelines If the audible alarm sounds, briefly press the Test/Reset button to silence it. Look at the display, or read the appropriate Modbus register, to determine the type of alarm and the distance to the leak, contamination, or cable break. If you have a leak detection reference map, cross-reference the distance with the map.
  • Page 26 Operation www.rletech.com 970.484.6510...

  • Page 27: Modbus Communication

    4.1.1.2 Function Field The function field is one byte in length and tells the SeaHawk 10K which function to perform. Functions are 03 (Read 4xxxx output registers) and 04 (Read 3xxxx input registers) are supported by the SeaHawk 10K.

  • Page 28: Data Field

    4.1.1.5 5-1.2 Exception Responses If a Modbus master sends an invalid command to the SeaHawk 10K or attempts to read an invalid register, an exception response is generated. The response packet will have the high order bit of the function code set to one. The data field of the exception response contains the exception error code.

  • Page 29: Packet Communications For The Seahawk 10K

    Packet Communications for the SeaHawk 10K 4.2.1 Function 03: Read Output Registers To read the SeaHawk 10K 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 30 Description Units Range 40006 Reset Alarm Resets the 1 = Enabled (reset 0-65535 SeaHawk 10K after an alarm) alarm state. 0 = Disabled (do not Alternatively, press and reset alarm) hold the front panel’s Default: 0 (Disabled) Test/Reset button for 3 seconds.

  • Page 31: Function 04: Read Input Registers

    Modbus Communication 4.2.2 Function 04: Read Input Registers To read the SeaHawk 10K 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.

  • Page 32: Rtu Framing

    Modbus Communication 4.3. RTU Framing The example below shows a typical Query/Response from an SeaHawk 10K module. Table 4.7 Response Sample Register Register Register Slave Function Count Bytes Data Data Data Address Code of Data “Lsb” “Msb” Slave address 2 responds to Function Code 4 with six bytes of hexadecimal data and ends with CRC16 checksum.

  • Page 33: Calibrate Cable Length Via Modbus

    4.4. Calibrate Cable Length via Modbus The length of sensing cable connected to the SeaHawk 10K can be calibrated through a Modbus-enabled system. This helps fine-tune a distance-read leak detection system. If no alarms are present, follow these steps to calibrate and test the system: Set the SW1 DIP switches for the correct cable resistance per foot, as follows: Figure 4.1 DIP Switch Settings for Ohms/Foot...
  • Page 34 Modbus Communication 1 X-Connector - which simulates 150 feet of sensing cable, 4 SD-Zs which simulate 50 feet of cable each, for a total of 200 feet of sensing cable System-wide, there are 750 feet of actual and simulated cable. ...
  • Page 35 AINTENANCE HAPTER Follow these steps monthly to test the SeaHawk 10K and ensure that the device is functioning properly. If your SeaHawk 10K is hooked into a BMS or NMS, notify monitoring personnel before you begin to test the system.

  • Page 36: Preventive Maintenance

    Preventive Maintenance www.rletech.com 970.484.6510...

  • Page 37: Troubleshooting

    SeaHawk 10K. If no voltage is present at the terminal block, check the power supply and circuit breaker that power the SeaHawk 10K. If voltage is present but no LEDs are illuminated, go to step 2. Contact RLE Technologies for further troubleshooting and evaluation.
  • Page 38 (<105°F). Agitate the cable in the solution, rinse with clear lukewarm water and wipe dry with a clean towel. Connect the cable to the SeaHawk 10K and test it to make sure the contaminates have been removed before reinstalling the cable under the floor.

  • Page 39: Configuration Reference

    DIP switches in blocks SW1 and SW2. The configuration of a stand-alone SeaHawk 10K can be performed using the DIP switches on the front panel. If the SeaHawk 10K will be connected to a Modbus-equipped monitoring system, some of the configuration can be performed using Modbus registers.

  • Page 40: Dip Switch Settings

    Configuration Reference A.1. DIP Switch Settings The SeaHawk 10K contains two blocks of DIP switches. A.1.1 SW1 - Configure the SeaHawk 10K. Figure A.1 SW1 Dip Switch Configuration Settings www.rletech.com 970.484.6510...

  • Page 41: Configure The Seahawk 10K Modbus Address

    Configuration Reference A.1.2 Configure the SeaHawk 10K Modbus Address DIP Sw2 is used to set the address of the Modbus device, which should be a number between 1 and 254. Adjust the individual switches until their sum equals the Modbus address. Figure A.2 shows the values of the DIP switches on the SW2 block as well as two examples of how...
  • Page 42 Configuration Reference www.rletech.com 970.484.6510...

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