User Manual - Applied TPG
Contents
1. TTDM 128 User Manual Identifying TTDM 128 Features Voltage selector 110 220 volts Spare fuse Ground earth stud Gland plate Fault relay terminals removable Leak relay terminals removable eoo 000 Service relay terminals removable 4 20 mA port terminals removable RS 232 485 external communications serial port terminals removable Sensing cable terminals removable External View LCD display gives up to date information regarding the condition of the system Icons and LEDs Monitoring LED green Service Required LED Yellow Leak LED Red Fault LED Red Self Test key Silence key Reset key Menu keys e e e RS 485 TT SIM network terminals removable Ribbon cable RS485 232 toggle switch Test Port DB 9 connector for temporary connection Reset pins Volume adjustment LCD contrast adjustment H56853 8 10 13 The TTDM 128 Keypad TraceTek TTDM 128 9 1 8 2 7 6 3 4 5 A 1 Test Activates limited series of self tests additional self tests are accessed through the menu see Self Test section 2 Left Right arrow In Current Events Status display manually select the channel displayed E DB When inputting numbers or text select digit to change In menus act as express ke2. Password entry is required to change the value from current value Use the UP or Down to move between the settings and press ENTER to select the setting Each SIM channel can have a different Leak Alarm setting if desired Press Esc to return to the SIM status screen R G RES Y B RES These values are the measured resistances of the Red Green and Yellow Black loops in the TraceTek leak sensing circuit If the R G Res and Y B Res value are significantly different from each other the TTDM 128 will create a Loop Imbalance alarm If either the R G Res or Y B Res value becomes very high the TTDM 128 creates a Loop Break or Cable Break alarm Loop imbalance and Loop Break alarms are typically associated with damage to sensing cable or connectors SI VERSION This parameter indicates the software version operating in the SIM microprocessor SI COMM This parameter indicates the success rate in percent for communications between the TTDM 128 and the SIM channel selected SI Comm values below 98 may indicate a faulty cable connection or damaged RS 485 cable Press Esc to return to the SIM status screen 24 H56853 8 10 128 User Manual ADD REGIONS RELAYS This menu item accesses a submenu that lets the user divide a length of sensing cable associated with an individual SIM channel into as many as 10 smaller logical sections Regions and assign Labels or Relays to those Regions Dividing a length of sensi
3. 30 SIM t 31 TI DININ G WOEK e otc crac ne ele ie animi cae 32 Self leS E teens wad ES 34 Event Response 35 Leak Detection and Location Events 35 ATRE EVENS E E rex ai tret 36 Pau EVENTS a cei d cube coti eA Mai ten dete bh cutie ATS 37 Multiple 38 40 Appendix 1 Events Glossary 42 Appendix 2 Connection to Other Devices 43 H56853 8 10 TTDM 128 User Manual OVERVIEW READ BEFORE USE Please read these instructions carefully and keep them in a safe place preferably close to the TTDM 128 for future reference The instructions provided in this booklet must be followed carefully to ensure proper operation If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired PREPARATION Before operation follow the installation instructions to ensure that each module is properly mounted and wired If these steps have not been taken refer to the installation documents provided for each module To obtain this literature or for technical assistance contact your local TraceTek distributor or visit our web site http www tycothermal com IMPORTANT
4. Notice that the red LED remains on This indicates that the leak relay is still in the alarm state TO RESET THE LEAK RELAY In order to reset the leak relay and return the module to the SIM Normal state press the Reset button Before doing so check that any external equipment controlled by the leak relay is ready to be reset Once the RESET button is pressed the relay returns to normal the red Leak LED turns off and the LCD returns to the normal display Hint If manual reset is not required the TTDM 128 can be set to auto reset see Leak Setup section H56853 8 10 35 Service Events INTRODUCTION A TraceTek sensing circuit consists of two electrical loops The SIM module constantly monitors for current passing between loops When the system is normal there is no current passing between the loops When there is a leak on the system the maximum current flows If a SIM detects a lower but significant level of current flow between the loops the TTDM 128 will signal a Service Alarm A low level current could indicate one or more of the following Avery small leak which may soon develop into a full leak alarm Heavy condensation or small spills coffee tea etc on a water or aqueous solutions sensing cable TT1000 and TT3000 for example Conductive material on a water or aqueous solutions sensing cable The material might be metal filings concrete dust flux mastic or other construction
5. Baud Modem 485 Address TTDM Terminal Print Events These parameters affect only the serial port for external communications features 22 26 amp 27 on the Internal View of TTDM 128 Features diagram The first four submenus listed above require password entry 32 H56853 8 10 TTDM 128 User Manual BAUD Use this option to select the baud rate of the external communications host serial port Selectable values include 600 1200 2400 4800 9600 19200 and 38400 Baud Default is 9600 MODEM This menu item provides access to three submenus Auto Answer causes a text string to be sent to the external serial port which will set a Hayes compatible modem to auto answer mode Dialallows the user to program an 11 digit numerical string into the menu Hang up allows the user to send a hang up command to an external modem attached to the serial port 485 ADDRESS When more than one TTDM 128 is connected to a host computer on an RS 485 network each TTDM 128 unit must be assigned a unique address This menu allows the user to assign the TTDM 128 an RS 485 address the default address is 1 An address of 1 through 20 hex can be selected however 20 should be reserved for testing only Using addresses 1 through 1F hex allows as many as 31 TTDM s on one network TTDM Auto This is the factory default and used for a TTDM installed by itself or installed as a master device for a group of TTSIM TTDM TT N
6. only obligations are those in the Tyco Thermal Controls Standard Terms and Conditions of Sale for this product and in no case will Tyco Thermal Controls or its distributors be liable for any incidental indirect or consequential damages arising from the sale resale use or misuse of the product Specifications are subject to change without notice In addition Tyco Thermal Controls reserves the right to make changes without notification to Buyer to processing or materials that do not affect compliance with any applicable specification Tyco TraceTek and the TraceTek logo are trademarks of Tyco Thermal Controls LLC or its affiliates Modbus is a trademark of Gould Inc OptoMux is a trademark of Opto 22 Metasys is a trademark of Johnson Controls
7. SIM Address address ID user defined ID SIM Status TestLength xxxx m Sense Cur xxx PA Serv Alert gt xx HA Sense Res xxxxx kO Leak Alarm lt xx R G Res xxxxx Y B Res xxxxx SI Version XXXX SI Comm xxx Add Regions Relays Note Only four lines are displayed at one time Arrows in the scroll bar indicate if other entries can be accessed with the up or down arrow keys Modifying Settings for Individual SIM Channel A description of each line on the SIM Status Menu appears below SIM ADDRESS The SIM channel address number is displayed on the right side If you want to go to a different SIM number press the ENTER key to bring up a screen that allows you to enter the number of the different SIM see below SIM Address 001 000 127 Use the Lert and Richt UP and Down arrow keys to change the number Press ENTER to move to the selected SIM If you enter a SIM number that is not connected to the TTDM 128 the following message is displayed SIM xx Not Found Press ESC to Exit 20 H56853 8 10 128 User Manual ID This screen allows you to change the label assigned to the individual SIM channel The alphanumeric label can be a maximum of 16 characters The default ID is SIM ID XXXXXXXXXXXXXXXX Use the Lert and R 6HT arrow keys to select a character position to change Use the Up and Down arrows to cycle through all the available characters un
8. The relays are de energized to indicate an alarm condition The diagram below shows the relay status when each is in an alarm de energized state Wiring Options to Gang Alarm Relays on a Single Pair of Wires The following illustrations show how the relays can be jumpered together to allow remote monitoring of the TTDM 128 system status with only a single pair of wires The TTDM 128 de energizes its relays to signal an alarm condition Therefore loss of power as well as any other type of alarm would trip the remote alarm Open on Alarm SERVICE RELAY LEAK RELAY FAULT RELAY 5A 250V 5A 250V 5A 250V 1 J6 1 J25 1 J9 Relays wired pev le in series c Nc NO COM No COM p M NC COM 15 18 19 20 21 24 25 26 27 30 31 32 Monitoring circuit open on alarm Close on Alarm SERVICE RELAY LEAK RELAY FAULT RELAY 5A 250V 5A 250V 5A 250V 1 J 1 J25 1 J9 i NNN Relays wired 86 mmm in parallel NC NO COM 30 31 32 NC NO COM 18 19 20 NC NO COM 24 25 26 Monitoring circuit close on alarm H56853 8 10 43 OPTIONAL 4 20 MA INTERFACE The TTDM 128 can be equipped with an analog 4 20 mA interface which can communicate the status of a selected SIM channel The TTDM 128 adjusts its current output based on whether an alarm condition exists in the selected channel and when a leak is detected on the loc
9. water TT1100 OHP series water T3000 acids and aqueous chemicals 175000 series liquid hydrocarbon fuels and oils TT FFS series liquid hydrocarbon fuels and oils T5001 series organic solvents T7000 HUV strong mineral acids A variety of TraceTek Point sensors including the TT FLAT PROBE and TT MINI PROBE as well as contact closure devices such as float switches can also be used with the TTDM 128 Description of TraceTek Leak Detection System TRACETEK SENSING CABLES The TraceTek leak detection system is based on sensing cables that detect liquid at any point along their length A variety of TraceTek sensing cables are available to detect different types of liquids While multiple types of sensing cables may be used in a single sensing circuit if different types of fluid are being monitored in the same area it may be more effective to create multiple circuits each with dedicated sensor cable of a specific type COMPONENTS OF TRACETEK LOCATING SYSTEM TraceTek leak detection is a versatile modular system with interchangeable components that can be configured in many different ways For more information on the products and systems available consult the appropriate TraceTek product selection guide or your local TraceTek representative T TUI Modular End Sensing Cable inati daisy chained together required at end to provide as much of HA branch coverage a
10. Error Communications problem between TTDM 128 unit and any installed SIM channel SI Comm Recovered Displayed when communication with SIM unit is re established SI H W Error A self test of the SIM unit has failed The unit needs to be repaired or replaced SI H W Recovered Displayed after a SIM hardware problem has been corrected Service Service Required A small amount of current is flowing between the two sensing wires in the sensing cable This is usually caused by a very small leak or buildup of contaminants The TTDM 128 may indicate a location in brackets if it can obtain consistent measurements Service Clear Displayed when the condition requiring service has been cleared for example the sensing cable is clean and dry User Settings Changed Whenever any user setup parameter is changed the event is logged Action in the Event History Alarm Silenced User pressed the silence button Reset User pressed the reset button or the system performed an automatic reset if configured for Auto Reset 42 H56853 8 10 TTDM 128 User Manual Appenpix 2 Connection To Devices Note All connections to external devices are made at the TTDM 128 RELAYS TTDM 128 has three relays Service Leak and Fault SERVICE RELAY LEAK RELAY FAULT RELAY 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 UU UU UU Relay Logic Each relay provides two Form C relay contacts with normally open and normally closed contacts both provided
11. SIM Status SIM Address select different SIM ID SIM change SIM ID current status last alarm value TestLength feet metres Zones Sense Cur Location Loc Res Serv Alert gt Set Service Alert Normal 50 uA High 20 uA Low 80 uA TT500x 40 uA Never Sense Res Leak Alarm lt Set Leak Alarm Normal 18 kQ High 30 kQ Low 14 kQ TT500x 10 kQ R G Res Y B Res SI Version SI Comm TTDM 128 User Manual Add Regions Relays Region Start End 1 Region Relay Trouble Relay useable only if NRM installed Service Relay SIM Relay only appears for TTSIM 1A TTSIM 2 Alarm Mode Leak Leak Brk Alarm State OFF ON Relay Reset Auto Manual Safe Legend normal text menu item italic text variable data bold text password required H56853 8 10 SIM Status MENU The TTDM 128 offers access to detailed real time status information for each SIM channel The status display for an individual SIM channel is accessed from the Current Event Status display gt Use the Lert or arrow keys to select the SIM channel of interest gt Press the Down arrow to access the detailed status information as shown below for the selected channel SIM Status
12. There should be a System Map for each sensor circuit The system map should show the sensing cable layout with reference to readily identifiable landmarks and with actual distance measurements every 5 m 16 ft throughout the system The map is normally completed at the time the leak detection system is commissioned Ensure that a copy of the system map is kept near the TTDM 128 module If the TTDM 128 is connected to a building management system ensure that a copy of the system map accompanies the building management system Notes Throughout this manual the examples shown use distances in meters Later versions of software may provide new features and change certain other details This manual documents UI software version 3 15 Syst Confi T The TraceTek TTDM 128 module has many possible applications and configurations The TTDM 128 can be configured as a stand alone leak detection panel or it can be used in a network of other TraceTek leak detection modules such as the TTSIM sensor interface module the TT NRM network relay module or additional TTDM 128 modules In all cases each TTDM 128 offers the following features and capabilities Directly monitor up to 1500 m 5000 ft of TraceTek sensor cable and point sensors 2048 event memory Built in status and alarm relays Optional 4 20 mA output H56853 8 10 SINGLE TTDM 128 WITH SINGLE CHANNEL SYSTEM See Quick Setup section TTDM 128 with up to 1500 m 5
13. Use the Down arrow key to access detailed SIM status information Pressing the Esc key twice will return the System Status screen NRM NETWORK The total number of relays in the network is reported If more information on the NRM relay status is desired press the ENTER key The displayed screen uses a single line to display the status of an individual relay The NRM relays are displayed in numerical order starting with the lowest number Use the Up Down arrow keys to move from one NRM relay number to another Pressing the Esc key once will return the System Status screen LEAK The number of active Leaks is reported Press the ENTER key to display all SIM channels with active leaks and the associated leak distance SERVICE REQ D The number of active Service Req d Alarms is reported Press the ENTER key to display all SIM channels with active Service Req d alarms and the associated service distance 28 H56853 8 10 TTDM 128 User Manual FAULTS The number of active Faults of all types is reported Press the ENTER key to display the number of current fault conditions related to Cable SI Comm Other NRM Comm Error Use the Up Down arrow key to select the specific fault type then press the ENTER key to display more information about each individual fault of that type UI VERSION The UI version is displayed TTDM The current operating mode of the TTDM 128 is displayed The mode can be set by user as de
14. User Manual Quick SETUP Common Setup Procedures All modules cables and sensors should be installed in accordance with their installation instructions prior to performing the setup procedures BASIC TTDM 128 SETUP FOR ALL CONFIGURATIONS gt Power up the TraceTek system Wait while the TTDM 128 completes its self test and network initialization process gt With the TTDM 128 on the Current Event Status display press the MENU key gt Using the Down arrow key scroll to General Setup and press ENTER Set the Time and Date adjust values as necessary using the arrow keys then press ENTER Select the desired language gt Press MENU to return to the Current Event Status display SETTING TTSIM ADDRESSES ON NETWORK SYSTEMS If your system includes TTSIM modules their network addresses must be set to unique values in the range from 02 to 127 address 01 is the default address of the TTDM 128 s internal Sensor Interface board If TT NRM network relay modules are installed the TTSIM addresses must be different than any TT NRM addresses gt With the TTDM 128 on Current Event Status display press Menu gt Use the Down arrow to select SIM Network then press ENTER gt For each TTSIM perform complete procedure before continuing to next TTSIM Place the TTSIM configuration jumper in the CFG position see TTSIM Installation Instructions With the TTDM 128 in the SIM Network menu use the Up and Down arrow key
15. alarms could exist on different SIM channels MONITORING The green LED indicates that the TTDM 128 is powered up SERVICE The TTDM 128 is able to give advance warning of potential problems The yellow Service LED illuminates to indicate that service is required on one of the sensing cables attached to the network Note that the green Monitoring LED remains illuminated the unit continues to monitor for leaks during a Service alarm LEAK When liquid is detected the red Leak LED illuminates Note that the green LED remains illuminated the unit continues to monitor for new leaks on all channels as well as for changes to the detected leak FAULT When the TTDM 128 module detects a fault either a cable fault break or an electronics fault the red Fault LED illuminates After a fault on an individual SIM has been detected the TTDM 128 module will in most cases continue to scan the remaining SIM units and their associated sensing circuits However some fault conditions may disable multiple channels or even the entire system The TTDM 128 is unable to detect a leak on any channel affected by a fault Always investigate the cause of a Fault condition immediately Note For more information on the various TTDM 128 alarm states see the Event Response section H56853 8 10 Current Event Status Display A representative of the Current Event Status Display screen is shown below Line 1 CH01 SERVER
16. debris or carbon based dust from air handling units printers or copiers While service alarms should be investigated they do not disable the operation of the system The TTDM 128 and TTSIM will continue to detect leaks during a service alarm However service alarms may affect the accuracy of leak location in certain cases THE SERVICE ALARM When the TTDM 128 detects a condition requiring service such as described above it signals the event by taking the following actions Sounds an intermittent beep lluminates the yellow Service LED Switches the service relay to alarm state Changes the LCD display to the following CH01 USER LABEL 0001 Service Req d 147 hh mm DD MMM YYYY The number in square brackets indicates the estimated location of the material causing the alarm The number is shown with square brackets to indicate that the value is only an estimate Hint Because the cause concrete dust for example of low level current may be distributed over a long length of sensing cable it is not always possible for the TTDM 128 to report a precise location However the indicated location is always good point from which to begin a troubleshooting procedure The following actions should be taken gt Silence the audible alarm gt Clear the cable Note When the cable is cleared the yellow Service LED the alarm relay and the LCD display will automatically return to their normal non alarm
17. entry is required to change the value from the default value Use the UP or Down to move between the settings and press ENTER to select the setting Each SIM channel can have a different Service Alert setting if desired Press Esc to return to the SIM status screen SENSE RES The Sense Resistance Sense Res is measured between the sensor cable wires For a clean leak free sensing circuit the Sense Res value is typically more than 20 000 If the Sense Res value is greater than 62 000 kO the display will show If the Sense Res value is decreasing it may indicate a leak in progress During leak detection events the Sense Res value will drop to less than 30 H56853 8 10 23 LEAK ALARM This setting controls Leak Alarms If Sense Res is less than the Leak Alarm setting the TTDM 128 signals a Leak alarm The proper setting for the Leak Alarm is based on the type of liquid leak being detected and the environment in which the sensing cable is located Allowable settings include Normal High Low or TT500x per the guidelines below Normal is the default setting and is used for most applications High is used for de ionized water applications Low is used for particularly active or exposed applications TT500x is used for hydrocarbon sensing cable applications TT5000 series TT5001 series Press ENTER to display the screen below Set Leak Alarm Normal 18 kO High 30 kQ Low 14 kQ TT500x 10 kQ
18. key to select 4 20 mA Test then press ENTER gt Use the Down arrow to select 20 mA Val then press ENTER gt Use the arrow keys to input the desired full scale length that will equate to a 20 mA output then press ENTER Normally this will be the Test Length value see Status of Individual SIM Channels section gt Press MENU to return to the Current Event Status Display 44 H56853 8 10 TTDM 128 User Manual To use the port for a different SIM channel gt From the Current Event Status Display press MENU gt Use the Down arrow key to select Self Test then press ENTER gt Use the Down arrow key to select 4 20 mA Test then press ENTER gt Use the RiGHT arrow key to select 4 20 mA SIM then press ENTER gt Use the arrow keys to input the desired channel number that will be output by the 4 20 mA circuit then press ENTER gt Press MENU to return to the Current Event Status Display Interpreting 4 20 mA output values The TTDM 128 adjusts its current loop output based on the leak detection status of the selected SIM channel as detailed in the table below Outputs in the range of 0 to 4 mA are used to indicate fault conditions 0 to 3 5 mA or normal operation 4 mA while outputs in the 5 to 20 mA range indicate the location of a leak The leak location values output by the 4 20 mA board have a resolution of 0 5 of the scale range Fault conditions coded into the 0 4 mA range Output
19. mA Description 0 Electronics fault or loss of power 1 0 Fault SIM communications 2 0 Fault cable break 3 0 Fault cable damage 3 5 Service Required alarm loop imbalance Normal condition and leaks Output mA Description 4 0 System normal 5 0 20 0 Leak value scaled to indicate location of leak H56853 8 10 45 TTDM 128 Tr a TraceTek Leak Detection WZ Master Module For more information see www tracetek com www tycothermal com Or contact us at one of these locations Worldwide Headquarters Europe Middle East Africa Asia Pacific Tyco Thermal Controls Tyco Thermal Controls Tyco Thermal Controls 307 Constitution Dr Romeinse Straat 14 20F Innovation Building Menlo Park CA 94025 1164 3001 Leuven 1009 Yi Shan Rd USA Belgium Shanghai 200233 P R China Tel 800 545 6258 Tel 32 16213 511 Tel 82 21 2412 1688 Tel 650 216 1526 Fax 32 16 213 603 Fax 82 21 5426 2937 5426 3167 Fax 800 527 5703 650 474 7215 info tracetek com www tycothermal com 2010 Tyco Thermal Controls LLC 56853 8 10 Important All information including illustrations is believed to be reliable Users however should independently evaluate the suitability of each product for their particular application Tyco Thermal Controls makes no warranty as to the accuracy or completeness of the information and disclaims any liability regarding its use Tyco Thermal Controls
20. press ENTER If asked for a password input 00010 and press ENTER The parameters that can be changed are Baud select host port baud rate Modem Define modem dialing strings if used 485 Address Set the TTDM s Modbus address TTDM Select the appropriate mode The password for this parameter is 04000 See the TTDM Network section for more selection information Note For communication with automation systems PC s and other host systems set the port to Auto Auto is the most common setting See detailed discussion of other settings in Main Menu TTDM Network section 6 H56853 8 10 Maximum of 126 TTSIMs Twisted pair network Up to 1500 m 5000 ft sensing cable per TTSIM Remote TTDM 128 RS 485 twisted pair cabling up to 4000 ft TTDM 128 User Manual Configuration Specific Set SINGLE TTDM 128 WITH SINGLE CHANNEL SYSTEM gt Perform Basic TTDM 128 Setup See Quick Setup section gt Assign the leak detection channel tag if required gt Perform the Host Port Setup if required See Quick Setup section SINGLE TTDM 128 WITH NETWORK SYSTEM MULTIPLE SIMS gt Perform Basic TTDM 128 Setup See Quick Setup section gt Perform the Host Port Setup if required See Quick Setup section gt Assign a unique address to each TTSIM gt Change the leak detection channel ID tags for each TTSIM if required MASTER TTDM 128 WITH SINGLE REMOTE TTDM 128 One of the TTDM 128s must be s
21. pressing the Test key when the display is in the Current Event Status Display mode This key is not password protected 34 H56853 8 10 TTDM 128 User Manual Event RESPONSE Leak Detection and Location Event A LEAK ALARM When liquid is detected by a sensor in any channel the following occur The audible alarm sounds If audible alarms are not required the module can be set to disable them see Leak Setup section The red Leak LED illuminates The display changes to show the channel and location of the leak CH01 USER LABEL 0001 Leak 504 m hh mm DD MMM YYYY The interfaces signal the event Leak relay 4 20 mA and serial port The following actions should then be taken gt Silence the alarm if necessary gt Locate the leak and clear the system gt Reset the leak relay This occurs automatically if Auto Reset is enabled see Leak Setup section TO LOCATE THE LEAK Using the channel number and location displayed by the TTDM 128 refer to the system map and determine where the leak was detected TO CLEAR THE SYSTEM Fix the leak and clean up the area affected Then clean and dry the sensing cable in the case of TT1000 and TT1100 OHP and TT3000 and TT FFS series or replace the affected section TT5000 series TT5001 series and TT 7000 HUV Once the sensing cable is clear the module responds and the display changes CH01 USER LABEL 0001 Leak Cleared Press reset hh mm DD MMM YYYY
22. the power was last supplied to the TTDM 128 is stored in nonvolatile memory and is entered into the Events History log when power is restored Restart The Events History log records when power is supplied to the unit or when the unit is manually restarted Leak Leak Liquid detected at the displayed channel and location Re Alarm Occurs under three different situations Location changed past Re Alarm threshold New leak location is more than 8 m 25 ft from the last stored location on the channel new average is shown in brackets Automatic Re Alarm after the Re Alarm interval a user setting if the leak condition still exists Leak Cleared Displayed when channel status returns to normal after a leak is cleared New Leak A new leak on a channel is detected after an earlier leak is cleared but before the leak relay is Reset Fault Cable Break Loss of continuity in both loops of the sensing circuit May be caused by broken or disconnected sensing cable jumper cable or connections YB Loop Break Break in the Yellow Black loop of the sensing cable RG Loop Break Break in the Red Green loop of the sensing cable Loop Imbalance Resistance of the two cable loops indicates more than 25 difference in measured resistance May be early indication of cable deterioration or damage or electrical contact of one sensing wire with a ground earth path Cable Restored Displayed when cable returns to normal after any fault condition SI Comm
23. 000 ft of TraceTek sensor cable or a combination of sensor cable and point sensors Maximum of SINGLE TTDM 128 WITH NETWORK SYSTEM MULTIPLE SIMS 126 TTSIMs See Quick Setup section Twisted Asingle TTDM 128 is used as the master module for a network of up to 126 ed additional TraceTek modules TTSIM TT NRM Up to 1500 m 5000 ft sensing cable per TTSIM MASTER TTDM 128 WITH SINGLE REMOTE TTDM 128 Remote TTDM 128 See Quick Setup section Master TTDM 128 monitors all conditions at the remote TTDM 128 Remote TTDM 128 acts like a single channel Modbus interface to a host computer is only available at the Master TTDM 128 in this configuration Master TTDM 128 RS 485 twisted pair cabling up to 4000 ft MASTER TTDM 128 WITH NETWORK SYSTEM MULTIPLE REMOTE TTDM 128S AND SIMS Remote TTDM 128 See Quick Setup section The same as the single TTDM 128 network system except with additional TTDM 128 s acting as remote modules and one TTDM 128 acting as Master Additional TTSIM and TT NRM modules can be installed on the network up to a total of 127 modules including TTDM 128 s Modbus interface to a host computer is only available at the Master TTDM 128 in this configuration 4 H56853 8 10 Time saving hint lf the space to the right is blank press the right arrow to duplicate the last letter entered Use the RESET key to jump between letters numbers and blank TTDM 128
24. 1A or TTSIM 2 continue as follows gt Select SIM Relay and press ENTER gt Select Alarm Mode and press Enter Select Leak if you want the relay to activate only on leak alarm or select Leak Brk if you want the relay to activate for any sensor alarm condition then press ENTER gt Select Alarm State and press ENTER Select OFF if you want the relay to be normally energized then de energized for alarms or select ON if you want the relay to be normally de energized then energized for alarms Press ENTER gt Select Relay Reset and press ENTER Select the appropriate reset mode then press ENTER Auto the relay will reset when the TTDM Reset key is pressed regardless of the current alarm condition or it will automatically reset when the alarm condition clears Manual the relay will remain latched and reset only when the TTDM Reset key is pressed The relay will reset regardless of the current alarm condition Safe the relay will reset only when the alarm condition has been cleared and the TTDM RESET key is pressed Note TTSIM 1A and TTSIM 2 relays will activate for any leak on the circuit regardless of region definitions 26 H56853 8 10 TTDM 128 User Manual Main MENU The following are the options presented at the Main Menu level gt Events History gt System Status gt General Setup gt Leak Setup gt SIM Network gt TTDM Network gt Self Test Each of these menu options is desc
25. EMOTE REMOTE RS 485 EXT XMTRS RS 485 EXT XMTRS J0 J0 485 485 485 485 3 4 3 4 8 56853 8 10 TTDM 128 User Manual You can now power up the Remote TTDM 128 and proceed as follows At each Remote TTDM 128 gt Perform Basic TTDM 128 Setup See Quick Setup section gt Change TTDM 128 Internal SI board address to unique value Note that each remote TTDM 128 and SIM must have a unique address between 02 and 127 gt Assign a unique address to each TTSIM gt Assign the leak detection channel tag SIM ID if required gt Set toggle switch SW2 located on underside of Ul board to RS485 position see feature 26 on Internal View of TTDM 128 Features diagram gt Goto TTDM network menu Set the parameters as follows Set baud rate to 9600 Set TTDM mode to Remote gt Initialize the SIM Network see SIM Network section You can now power up the Master TTDM 128 and proceed as follows At the Master TTDM 128 gt Perform Basic TTDM 128 Setup See Quick Setup section gt Check that the TTDM mode is set to Auto and internal SI board address is set to 01 gt Change the Communication Timeout parameter With the TTDM 128 in the Current Event Status display press MENU Use the Down arrow key to select General Setup then press ENTER Use the Down arrow key to select Password then press ENTER Input the value 04000 then
26. Note The Test Length normally is about 1 longer the mapped length for the SIM channel H56853 8 10 21 The Test Length value is displayed on the right If you want to change the units of length hit the ENTER key to bring up the following screen Use the Down arrow to select meters or zones Press ENTER to select Units feet meters zones If you press ENTER to select zones the screen below allows you to change the default zone value Set Zone Resistance Zone Res 2000 To change the value press ENTER Password entry is required to change from the default value After password entry this screen allows entry of a value between 180 and 300 ohms Enter your new value as displayed on the top line of the screen below Zone Res 200 Q 180 300 Use the Lert and Richt and UP and Down arrow keys to change the number Press ENTER Press Esc to return to the SIM status screen SENSE CUR The Sense Current Sense Cur measured value is shown on the right side of screen This current measured in pA indicates the condition of the sensing cable In a clean leak free sensing circuit the Sense Current should be less than 5 pA If the Sense Current value is greater than 10 pA press ENTER to display the calculated leakage location value for troubleshooting purposes The Location value is displayed using the selected Units either feet meters zones along with the Location Resistance Loc Res valu
27. RM units The TTDM will respond to Modbus polling from a Building Management System BMS or factory automation system The TTDM will automatically recognize the type of Modbus ASCII RTU and respond in kind to any request for data RTU Only Some BMS systems poll at such a high rate that there is insufficient time for automatic protocol recognition at the TTDM Setting RTU Only mode disables automatic protocol decoding and speeds up the TTDM response Use this setting only if the host system is polling exclusively in Modbus RTU mode iServer Select this mode if an external host system needs to access the network of TTSIMs directly BMS systems usually poll data from the TTDM s internal data base But some remote access devices e g TT iServer need to access the TTSIM devices directly iServer mode allows the host to request data from a TTSIM In essence the external device can poll through the TTDM but with at the cost of slightly longer response times Remote TTDM Use this setting for a TTDM that is to be monitored by a Master TTDM This configuration is used when there are multiple TTDMs installed around a facility A single TTDM can be installed as a Master display for the entire system All other TTDMs should be set to Remote mode TERMINAL Use this option to view a one line display of characters being sent to or received from the TTDM external communications serial port This function is used to verify communications du
28. ROOM Line 2 LEAK 125 M Line 3 Line 4 12 30 21 01 2003 A guideline for the Current Event Status Display is shown below Line 1 identifies the channel currently displayed showing the SIM channel number and user defined ID tag up to 14 characters For a new system the default label is SIM until edited by the User Line 2 indicates the current status of the SIM channel identified on Line 1 or In the case of Leak re alarm displays the initial leak location of the SIM channel identified on Line 1 Line 3 may advise action or provide special instructions or in the case of leak re alarm indicates the current status of the SIM channel identified on Line 1 Line 4 displays the current time in 24 hour format and date the colon blinks once a second or in the case of Leak re alarm may advise action or provide special instructions The LCD display is a backlit 4 line by 20 character display If there is no activity for several minutes the back lighting turns off until any key is pressed Hint The LCD contrast may be adjusted feature 30 in the TTDM 128 Internal View diagram If no new alarm conditions exist the LCD display scrolls through each connected SIM channel in sequence The LCD presents the current event status display for each channel for about 4 seconds then continues to the next connected SIM channel Once the last SIM channel is displayed the process starts again at
29. TIDM 128 Tr a TraceTek Leak Detection Master Module User Manual Table of Contents A u Ass dake We E Kena 3 System Configurations 3 Quick SUID lt r a 5 Common Setup Procedures u reke eyek eke eker 5 Configuration Specific 4 7 TTDM 128 Capabilities 10 The TraceTek TTDM 128 Network sene 10 Description of TraceTek Leak Detection System 11 TIDM T28 Features L eene 13 Identifying TTDM 128 FealUr S sse 13 The TTDM 128 Keypad sse nnns 14 The TTDM 128 System Display sese 15 Current Event Status Display 16 Navigating the Menu StrUCtUF6 eker 17 Main Menu Structures siii nn cette etcetera eana 18 SIM Status Menu StrUC UF6 u kk eke eke keke ekes 19 SIM Status Menu A LALE 20 Modifying Settings for Individual SIM 20 Setting up Regions and Relays 25 Main s cce crie nts Ra desee ra eene Tote ehe YER XU 27 Events History E00 n epp Ran 27 Syst m ki estate doses ar K neee o ati eed oad 28 General Se UDS Y eet epe oes ena 29 GE a cete
30. and press ENTER This value represents the ending distance for the region Using the arrows enter an end distance and press ENTER gt Select ID from the menu and press ENTER Using the arrows assign the region an alphanumeric label and press ENTER If a TT NRM is connected and will be utilized with this region continue as follows gt Note Each TT NRM leak alarm relay can only be assigned to a single region gt Select Region Relay and press ENTER gt Using the arrows assign the relay to be activated for a Leak Alarm Press ENTER H56853 8 10 25 If a TT NRM is connected continue as follows to assign the trouble relay and service relay Note Trouble and service relays are not region specific They will alarm for any point in the SIM circuit Assign any unused relay to serve as the trouble relay Assign a different unused relay to serve as the service relay gt Select Trouble Relay and press ENTER gt Using the arrows assign the relay to be used as the Trouble Relay gt Select Service Relay and press Enter gt Using the arrows assign the relay to be used for the Service Relay Region setup example Region No 1 2 3 4 Start 0m 251m 501m 751m End 250 m 500 m 750m 1 000 m ID Room A Hall Room C Room D Region relay 50 01 50 02 50 03 50 04 Trouble relay 50 06 50 06 50 06 50 06 Service relay 50 07 50 07 50 07 50 07 SIM Relay Setup 10 1 If the SIM is a TTSIM
31. ation of the leak The 4 20 mA current output is isolated from the sensing circuit and therefore requires an external DC power supply 26 4 V maximum The maximum loop resistance Rmax is determined according to the power supply voltage Vdc Rmax 24 900 ohms 18 600 ohms 12 300 ohms 4 20 mA Wiring Before wiring the external equipment to the TTDM 128 check that jumpers J11 and J12 OPTION INT PWR JMPRS on the TTDM 128 Mother Board are not installed The 4 20 mA output port is connector J2 on the TTDM 128 motherboard The external power supply and monitoring device can be connected as per either of the following diagrams 4 20 mA OUT PORT 4 20 mA OUT PORT e e e e e e e e IRTN IOUT V VRTN IRTN IOUT V VRTN 11 12 13 14 11 12 13 14 a 5 V not used V V not used 24 Vdc supply Monitor Monitor 24 Vdc supply Configuration The 4 20 mA interface communicates the status of a single SIM channel The default SIM channel is the TTDM 128 internal Sensor Interface board channel 1 The module s output can be scaled to provide maximum resolution of the 4 20 mA range for the length of sensing cable connected to the selected SIM channel To change the leak location scaling gt From the Current Event Status Display press MENU gt Use the Down arrow key to select Self Test then press ENTER gt Use the Down arrow
32. bvious by visual inspection it is often useful to subdivide the system and test individual sections with a TraceTek Portable Test Box or DMM digital multimeter As soon as the fault is cleared the relay LED and LCD display return to their normal state H56853 8 10 37 Multiple Events SIMULTANEOUS EVENTS ON DIFFERENT SIM CHANNELS The TTDM 128 is capable of monitoring many sensing circuits Each SIM operates independently of other SIMs in the leak detection network The TTDM 128 tracks information for all SIM channels and is capable of handling multiple events that occur in the same time frame Any new event takes precedence on the LCD display The LCD display will pause temporarily on the most recent event giving the local operator time to read the LCD message and take action After pausing several minutes on the most recent event the TTDM 128 display resumes automatic scrolling through each connected SIM channel At any time the operator may manually select a channel by using the left or right arrow keys When a channel has been selected manually the display pauses on the selected channel for several seconds before scrolling resumes MULTIPLE EVENTS ON A SINGLE SIM CHANNEL In some circumstances multiple events may occur a single SIM channel The system continues to monitor during Service and Leak alarms ensuring that the installation provides full time protection The TTDM 128 stores all events in memory and in ad
33. cation to a host computer control system or building management system using RS 232 or RS 485 hardware and Modbus protocol Event history log non volatile Optional 4 20 mA output When liquid is detected on any sensor the TTDM 128 sounds an alarm illuminates an LED closes relay contacts and displays the channel number and location of the leak on an LCD display Each alarm event leak service fault etc and user action is logged into the event history file The event history file shows the type of event and the time and date that the event occurred This information is available to any host PLC or building automation system via an RS232 or RS485 serial connection and the Modbus protocol A simple system map typically an as built drawing of the sensor installation with reference measurements showing where the sensors have been installed is the only field calibration requirement Each individual sensor circuit detects locates and tracks leaks independently from the other circuits in the leak detection system There is no loss of sensitivity and no re mapping required after an initial leak is detected 10 H56853 8 10 TTDM 128 User Manual Alarm and Locating Module Modular Leader Cable Modular Jumper Cable between module and area monitored Modular Branching Connector Sensing Cable The TTDM 128 s internal SIM has been designed for use with the following TraceTek sensing cables TT1000
34. ctivity for 30 minutes it automatically returns to the Current Event Status display H56853 8 10 17 Main Menu Structure Current Event Status Display Main Menu Events History System Status SIM Network current status 2 current status d NRM Network current status 2 current status d Leak Service Reqd Faults Cable SI Comm Other NRM Comm Error UI Version TTDM General Setup Time Date Language English Francais Deutsch Espanol Italiano Japanese Password Special Leak Setup ReAlarm Int Auto Reset Audible Alarm Alarm Reflash Alarm Reset SIM Network Set SIM Address Init Network Update Network TTDM Network Baud 38400 19200 9600 default 4800 2400 1200 600 Modem Auto Answer Dial Hang up 485 Address default 1 Hex TTDM Auto RTU only iServer Remote TTDM Terminal Print Events Self Test Ul Version Memory Tests SI Test 4 20 mA Test Display Test Ul Relay Test Keypad Test Ext Comm Loop Test NRM Relay Test Ground Fault Test TTSIM 1 only H56853 8 10 SIM Status Menu Structure Current Event Status Display
35. dition updates the display based on the sequence of events in a SIM channel MOVING LEAK The TTDM 128 will re alarm when the leak moves more than the re alarm distance for which the default is 2 m 5 ft The audible alarm will sound the third line of the LCD will change and a new event will be added to the Events History Example suppose an initial leak is detected at 110 m The TTDM 128 would display CH01 USER LABEL 0001 Leak 110 m hh mm DD MMM YYYY Suppose also that before repairs can be made the leak spreads Once the module has detected significant movement of the leak the TTDM 128 module goes into alarm once again CH01 USER LABEL 0001 Leak 110 m Re Alarm 115 m hh mm DD MMM YYYY The LCD now displays the first leak on the second line of the display and the most recent alarm on the third line The first leak recorded on the SIM channel is likely to be close to the source of the leak The most recent leak shows the current electrical center of the liquid essentially a weighted average If the Re Alarm location is relatively close to the first as in the example above it is likely that the leak has spread Should the leak continue to spread the TTDM 128 would re alarm again and the re alarm location is updated accordingly 38 H56853 8 10 TTDM 128 User Manual CH01 USER LABEL 0001 Leak 110 m Re Alarm 120 m hh mm DD MMM YYYY Hint Use the Events History to track the even
36. e in ohms Example values associated with a simulated event are displayed below Location Location 100 ft Loc Res 390 Q If the Sense Cur rises to 20 pA or above service is recommended as it may indicate the presence of contamination on the sensing cable If a leak is detected the current will rise to greater than 270 pA depending on the type of TTSIM used Press Esc to return to the SIM status screen 22 H56853 8 10 128 User Manual SERVICE ALERT This setting controls Service Alerts If Sense Cur is greater than the Service Alert setting the TTDM 128 signals a Service Alert The proper setting for the Service Alert is based on the type of liquid leak being detected and the environment in which the sensing cable is located Available settings include Normal High Low TT500x or Never per the guidelines below Normal is the default setting and is used for most applications High is used for de ionized water applications Low is used for particularly active or exposed applications TT500x is used for hydrocarbon sensing cable applications TT5000 series TT5001 series Never is used to turn this feature OFF It is not recommended to use the Never setting because this disables the Service Alert Service Alert is designed to maintain system performance Press ENTER to display the screen below Set Service Alert Normal 50uA High 20uA Low 80uA TT500x 40uA Never Password
37. ed and require replacement Therefore you should follow some basic rules for storing and handling all TraceTek sensing cables Store spare cable in its original container in a clean dry place until ready for installation Schedule cable installation after all mechanical plumbing and electrical work has been completed Clean the area where the cable is to be installed and remove any obvious debris or other sources of contamination Do not solder or weld near the cable without providing protection from heat solder flux or weld splatter Do not drop tools or floor tile on the cable sharp or heavy objects may damage the cable Avoid walking or stepping on the cable Provide shielding for example a half shell of plastic pipe where additional protection is necessary Do not use tape to secure sensing cable Some tapes and adhesives absorb moisture or use solvents that could eventually cause an alarm Do not drag sensing cable through contaminants such as pipe dope PVC cement solvents oil or dirt 40 H56853 8 10 Alarm and locating module End termination End termination 128 User Manual INVESTIGATING LEAKS AND FAULTS If the location of a leak is not apparent it is often useful to subdivide the leak detection circuit To accomplish this it is best to have a TraceTek Portable Test Box PTB or extra TTSIM and an extra Modular End Termination Contact your local TraceTek rep
38. elected as the Master TTDM 128 and operate in AUTO mode The other TTDM 128 will operate in REMOTE mode Before powering up the system gt Connect the RS 485 host port J13 of the Remote TTDM 128 to the TraceTek Network port J10 of the Master TTDM 128 Observe correct polarity You can now power up the Remote TTDM 128 and proceed with setup as follows MASTER REMOTE RS 485 EXT XMTRS RS 232 485 EXT COM PORT J10 J13 RX A 485 485 3 4 5 6 IIT At the Remote 128 gt Perform Basic TTDM 128 Setup See Quick Setup section gt Change TTDM 128 Internal SI board address to unique value Note that each remote TTDM 128 and SIM must have a unique address between 02 and 127 gt Assign a unique address to each TTSIM gt Assign the leak detection channel tag SIM ID if required gt Set toggle switch SW2 located on underside of Ul board to RS485 position see feature 26 on Internal View of TTDM 128 Features diagram gt Goto TTDM network menu Set the parameters as follows Set baud rate to 9600 Set TTDM mode to Remote H56853 8 10 At the Master TTDM 128 You can now power up the Master TTDM 128 and proceed with setup as follows gt Perform Basic TTDM 128 Setup See Quick Setup section gt Check that the TTDM mode is set to Auto and internal SI board address is set to 01 gt Change the Communication Timeout parameter With the TTDM 128 in the Curre
39. en a multi channel system is connected to a host computer via a simple relay only interface Reflash will typically cause the host computer to log each new leak event as it occurs whether or not preceding events have been cleared choices Off On default Off ALARM RESET This parameter determines whether all SIM channels will be reset simultaneously when the Reset key is pressed All setting or only the currently displayed SIM channel will be reset Single setting Choices Single All default Single SIM Network The SIM Network menu has the following submenus Set SIM Address nit Network Update Network SET SIM ADDRESS This command allows the user to assign a new address to either the TTDM 128 s internal SIM or an external TTSIM This function is vital to starting up a new leak detection network To assign an address to an external TTSIM it must be connected to the TTDM 128 and able to communicate with it Be sure to assign a unique SIM address or communications problems will result To set the TTDM 128 internal SIM or external TTSIM addresses the SIM unit to be addressed must be set to the configure CFG mode This is accomplished by placing a jumper on the CFG pins J1 on the TTDM 128 s internal SIM see TTDM 128 Installation Instructions for details refer to the appropriate TTSIM installation instructions for details regarding external TTSIM s Note that only 1 TTDM 128 in
40. m Alarm Reflash Alarm Reset These parameters determine the alarm setting for all SIMs Password entry is required to change them RE ALARM INTERVAL The TTDM 128 can be set to re alarm automatically if the alarmed event has not been cleared after a certain length of time allowed range 0 24 hours default 0 does not re alarm Hint You can use the Re alarm interval capability to automatically alert the next shift when the system has an uncleared alarm leak cable break fault or service required AUTO RESET The TTDM 128 is factory set to require a manual reset following a leak alarm This allows the user to verify that any equipment connected to the Leak relay is ready to be switched back to its normal state Note that this setting is independent from the TTSIM 1A TTSIM 2 relay reset mode If Auto Reset is set to On the leak relay will automatically reset as soon as the leak has been cleared Choices Off On default Off AUDIBLE ALARM The audible alarm may be disabled if not required Use feature 29 on Internal View of TTDM 128 features diagram to adjust the volume choices Off On default On 30 H56853 8 10 TTDM 128 User Manual ALARM REFLASH The alarm reflash option causes the leak alarm relay contacts to revert to their no alarm state for approximately 5 seconds then return to the alarm state whenever an additional leak occurs before an existing leak is cleared This is useful wh
41. ndividual SIM Channels section UPDATE NETWORK Use this command to update the TraceTek network when TTDM 128 TTSIM or TT NRM units have been added and assigned unique addresses this is not necessary when TTSIM s are added and addressed using the TTDM Set SIM Address menu When activated this command immediately searches all unused addresses to determine what new equipment has been connected The current event status of all devices will be maintained by this command Note Use the INIT NETWORK command to reset all current event status information gt Select SIM Network and press ENTER gt Select Update Network and press ENTER INIT NETWORK Use this command to initialize the TraceTek network once all TTDM 128 TTSIM and TT NRM units have been connected and assigned unique addresses When activated the Init Network command immediately searches all possible addresses to determine what equipment has been connected The current event status of all devices will be reset by this command Note Use the Update Network command to add to an existing network without resetting the status of existing SIM s gt Select SIM Network and press ENTER gt Select Init Network and press ENTER IMPORTANT For TTDM 128 networks the TTDM 128 configured as the Remote device must be initialized or updated before the Master unit TIDM Network Access the TTDM Network menu through the Main Menu The TTDM Network menu has the following submenus
42. ng cable into labeled regions can help identify the location of an alarm condition By assigning relays to regions it is also possible to create a wide range of alarm actions depending on the region and sensor cable condition Press ENTER to display the screen A simulated screen is shown below Regions Relays Region 1 Start 1ft End 1ft ID Region Relay Trouble Relay Service Relay For some systems it may be helpful to divide a circuit of sensing cable into regions In addition regions are sometimes useful in setting up TT NRM relay actions When a length of sensing cable is divided into regions the TTDM 128 will identify the region in which a Service or Leak event occurs Each region represents a section of the entire length of sensing cable Regions are defined by a Start starting distance and an End ending distance Regions can contain the entire sensing circuit or only a part of the circuit To create regions for a circuit repeat for each desired region gt Select the appropriate SIM channel gt Use the Down arrow key to select Add Regions Relays then press ENTER gt Select Region No from the menu and press ENTER gt Use the arrow keys to select a region 1 10 and press ENTER Select Start from the menu and press ENTER This value represents the starting distance for the region Using the arrows enter a starting distance and press ENTER gt Select End from the menu
43. nological order with the most recent event displayed first Hint To quickly move to a view of the most recent event press the RiGHT arrow key To move to the oldest event press the LEFT arrow key TYPICAL TTDM 128 EVENT DISPLAY Event xxxx Alarm Silenced HH MM DD MON YYYY H56853 8 10 27 TYPICAL SIM EVENT DISPLAY Event xxxx CH01 USER LABEL 0001 Leak 237 ft HH MM DD MON YYYY An arrow at the bottom left hand corner pointing down indicates that there are further events below occurring before the one being displayed System Status o 1 1 1 The TTDM 128 offers access to detailed real time status information and provides an overview of System Status conditions Access the System Status menu from the Main Menu The System Status menu has the following sub menus SIM Network NRM Network Leak Service Req d Faults UI Version TTDM operating mode SIM NETWORK The total number of SIM s in the network is reported If more information on the SIM status is desired press the ENTER key The displayed screen uses a single line to display the status for each SIM channel The SIM channels are displayed in numerical order starting with the lowest number Use the Up Down arrow keys to move from one SIM channel to the next If more information is desired about a specific SIM channel press the ENTER key The SIM Status screen discussed in SIM Status section is then displayed
44. nt Event Status display press MENU Use the Down arrow key to select General Setup then press ENTER Use the Down arrow key to select Password then press ENTER Input the value 04000 then press ENTER followed by Esc Use the Down arrow key to select Special then press ENTER Use the Down arrow key to select Comm Timeout then press ENTER Use the arrow keys to input the value 300 ms then press ENTER Press MENU to return to the Current Event Status display Initialize the SIM network see SIM network section gt Change the leak detection channel ID tags to match what was set at the Remote TTDM 128 Remote TTDM 128 MASTER TTDM 128 WITH NETWORK SYSTEM MULTIPLE REMOTE TTDM 128 S AND SIMS One of the TTDM 128s must be selected as the master TTDM 128 and operate in Auto mode the remaining TTDM 128 s in the network will operate in remote mode Before powering up the system Connect the RS485 host port J13 of the first Remote TTDM 128 to the Add TTDM 128s into the SIM network TraceTek network port J10 of the Master TTDM 128 All other Remote TTDM where it makes sense to have a local 128s are interconnected using their respective RS485 host port J13 Observe relays ate correct polarity MASTER REMOTE REMOTE RS 485 EXT XMTRS RS 232 485 EXT COM PORT RS 232 485 EXT COM PORT J10 RX A TX B RX A TX B 485 485 3 4 5 6 bibi R
45. nty about the leak location due to the pre existing Service Required alarm condition by showing the location in brackets H56853 8 10 39 MAINTENANCE CLEANING THE TTDM 128 MODULE To clean the outside surface use a damp cloth or sponge Do not use solvents or abrasive cleaners and do not open the enclosure while it is wet it is an electrical device FUSE REPLACEMENT The fuse on the power supply board of the TTDM 128 and TTSIM 1A and TTSIM 2 units is 500 mA 250 V slow acting microfuse It has an T1 rating characteristic code T slow acting Use no other type of fuse or the TTDM 128 could be damaged or could fail to perform properly One spare fuse is provided in the TTDM 128 see feature 15 on Internal View of TTDM 128 Features diagram ROUTINE MAINTENANCE It is recommended that the TraceTek Leak Detection system including alarm modules and sensing cables components be thoroughly checked twice a year Such a check will identify conditions that adversely affect the leak locating capability of the system More frequent checks may be required if the sensing cable is repeatedly exposed to leaks or may be exposed to abuse due to construction or repair work Contact your local TraceTek representative for further information on service support STORAGE AND HANDLING OF SENSING CABLE Despite their rugged construction TraceTek sensing cables must be handled in a manner appropriate for a sensing device or they may be damag
46. press ENTER followed by Esc Use the Down arrow key to select Special then press ENTER Use the Down arrow key to select Comm Timeout then press ENTER Use the arrow keys to input the value 300 ms then press ENTER Press MENU to return to the Current Event Status display gt Initialize the SIM network see SIM Network section gt Change the leak detection channel ID tags to match what was set at the Remote TTDM 128 H56853 8 10 TTDM 128 CAPABILITIES The TraceTek TIDM 128 Network The TTDM 128 can directly monitor up to 1500 m 5000 ft of TraceTek sensor cables up to 150 TraceTek point sensors and networks of up to 126 external TraceTek modules which can include any combination of TTSIM sensor interface modules TT NRM network relay modules or up to 32 additional TTDM 128 s operating in Remote mode With a fully implemented network it is possible to monitor as much as 190 km 119 miles of TraceTek sensor cable and provide as many as 320 discrete relays to handle a wide variety of alarm and telemetry functions Note the maximum number of TTSIMs on a network must be reduced by 4 for each TT NRM added Each TTDM 128 provides An internal Sensor Interface Module SIM capable of directly monitoring up to 1500 m 5000 ft of sensor cable 150 point sensors or a combination of both cable and sensors 3 alarm relays providing status for Leak alarm Service required alarm System fault alarm Serial communi
47. resentative to obtain these products To subdivide the system and isolate the problems find a connection at a convenient point somewhere near the center of the detection circuit You can then use a PTB or add an additional TTSIM to test the back half of the sensing circuit to verify circuit integrity and to detect the presence of liquid and determine its location If you install an end termination on the front half of the circuit going back to the existing module you can use that module to check the front half of the sensing circuit If you add a new TTSIM to the leak detection network by connecting it to the RS 485 wiring connected to the TTDM 128 follow the Set SIM Address instructions then perform an Update Network command see SIM Network section Examine the SIM Status of the new front half and old back half channels and compare with the SIM Status of the former combined sensing circuit You can further subdivide the circuit and even test individual lengths of cables Even the most perplexing problems can usually be isolated and resolved using this methodical approach If you wish to remove SIMs remember to use the Init Network capability see SIM Network section End termination End termination H56853 8 10 41 Appenpix 1 Events GLOSSARY Type of Message Description Event Power Power Down The time
48. ribed in detail on the following pages ENTERING A PASSWORD When a user attempts to change a restricted setting the TTDM 128 displays a password prompt The factory default password is 00010 to change the password see General Set up section To enter the password proceed as follows Use the Lert and arrow keys to move to each digit Use the UP and Down arrows to increase decrease the selected number Press ENTER when complete Note Once the password is entered it remains in effect allowing access until the user exits the Main Menu and returns to the Current Event Status display or until there has been no keypad activity for approximately 30 minutes Events History Log 1 1 1 1 One extremely useful function provided by the TTDM 128 is the ability to record a series of events The TTDM 128 module keeps track of a list of up to 2048 events the first 2048 events are numbered if 2048 events are already stored the oldest event is discarded as a new event is recorded Events in the events history log may be specific to one SIM channel or may refer to the TTDM itself such as user interactions For a full list of event types please refer to Appendix 1 Events Glossary ACCESSING THE EVENTS HISTORY LOG gt From the Current Events Status display press MENU gt Then press ENTER to select Events History gt Use the UP and Down arrow keys to scroll through the events history log The events will be displayed in chro
49. ring system start up H56853 8 10 33 PRINT EVENTS Use this menu selection to send an ASCII text message through the serial port to an attached serial device either a directly connected PC running a terminal emulation program a serial printer or a modem This function allows the user to download all events in the Events History Log for later analysis Do not use this when connected to a Modbus network as it may disrupt communications The Self Test menu provides access to specific user selected test routines UI Version Memory Tests Sl Test 4 20 mA Test see Appendix 2 Connection to Other Devices for details Electronics Fault 51 Comm Error Cable Break Loop Imbalance Service Req d System Normal Leak user selects location 20 mA Val user selects location 4 20 mA SIM Display Test UI Relay Test tests the TTDM s internal relays Keypad Test Ext Comm Loop Test see Appendix 2 Connection to Other Devices for details Relay Test tests the relays on any connected TT NRMs Ground Fault Test only for External TTSIM 1s The Self Test menu is password protected to prevent inadvertent emergency response activity because in many installations the leak relay or 4 20 mA output may be connected to external systems Always notify the appropriate response personnel before using the Relay Test or 4 20 mA Test to alter their outputs The first three tests are also accessed by
50. s needed y S Erm x Tags Hold Down Clips H56853 8 10 A TraceTek locating system provides distributed leak detection and location over long distances and wide areas A TraceTek locating circuit consists of a TraceTek locating module TTDM 128 TTSIM sensing cable and or point sensors and circuit components leader cable jumper cables end terminations weighted lengths and branching connectors with connectors that allow components of the system to plug together The weighted length resistor simulates a 4 5 m 15 ft length of sensing cable Installed at the boundary between two areas of sensing cable the weighted length allows the user to clearly identify the area where a leak has occurred The branching connector enables the sensing cable to be branched An end termination completes each branch At the branching connector the system first counts the sensing cable along the branch middle connector to its end termination before it continues with the main run Two built in 4 5 m 15 ft weighted length resistors allow the user to clearly identify the leg on which a leak has occurred H56853 8 10 TTDM 128 Features External View Internal View TraceTek TTDM 128 o0000 Internal View e e e e User interface Ul board 4 20 mA board optional Sensor Interface SI board Motherboard MB Power supply board Fuse 500 mA 250 V Power cable terminal block removable
51. s to select Set SIM Address then press ENTER Press ENTER again use the arrow keys to input the new TTSIM address then press ENTER Return the TTSIM configuration jumper to the normal operating position see TTSIM Installation Instructions Press Esc TTDM should display SIMxxx added Then press Esc again gt Press MENU to return the TTDM 128 to Current Event Status Display mode CHANGING SIM CHANNEL ID TAG Each leak detection channel TTDM 128 or TTSIM can be given a unique alpha numeric identification tag To change the ID tag of a channel gt With the TTDM 128 in normal operating mode and displaying the status of the desired leak detection channel press the Down arrow key Use the Down arrow key to scroll to select ID then press ENTER Using the Lert and RicHT arrow keys to select the character position and the UP and Down arrow keys to change the letters and numbers enter the desired ID tag Press ENTER when finished Press MENU to return to the Current Event Status Display H56853 8 10 CHANGING SIM CHANNEL UNITS The unit of measure for circuit length can be changed individually by channel or for all channels To change units for an individual channel gt With the TTDM 128 in the Current Event Status Display and displaying the status of the desired leak detection channel press the Down arrow key gt Use the Down ARROW to select TestLength then press ENTER gt Use the Up Down arro
52. scribed in TTDM Network section as either AUTO RTU only jServer Remote TTDM General Set up 1 1 1 1 1 Access the General Set up menu from the Main Menu The General Set up menu has the following sub menus Time Date Language Password Special High level password required to see this menu TIME DATE Use the Lert and arrow keys to select each digit Use the Up Down arrow keys to increase or decrease the number Press ENTER to save changes LANGUAGE Select from available options English Francais Deutsch Espa ol Italian and Japanese Press ENTER to select PASSWORD Entering a Password When the user attempts to change a restricted setting a password prompt appears gt Use the Lert and RIGHT arrow keys to move to each digit gt Use the Up Down arrow keys to increase or decrease the number gt Press ENTER when complete The TTDM is supplied from the factory with the password 00010 H56853 8 10 29 Changing the Password gt Enter the old password if requested gt Enter the new password using the arrow keys and press ENTER Hint If password protection is not required set the password to 00000 After that you will not be prompted for a password SPECIAL This mode is primarily intended for factory use only Leak Setup __ W W 1 1 1 T MB The Leak Setup menu has the following submenus ReAlarm Int Re Alarm Interval Auto Reset AudibleAlar
53. state No reset is required 36 H56853 8 10 TTDM 128 User Manual TO CLEAR THE CABLE Investigate the cause of the alarm and conduct cleanup or maintenance accordingly Hint If material causing a service alarm is spread throughout the system it is often useful to subdivide the system see INVESTIGATING LEAKS AND FAULTS in the Maintenance section for further information Fault Events INTRODUCTION Several conditions could lead to a fault alarm A cable is disconnected Acable is damaged Aconnection is damaged Aspecific SIM module is damaged Communication is lost between the TTDM 128 and one or more SIM modules WHAT THE TTDM 128 MODULE DOES The following shows how the alarm display would appear if the fault were caused by a broken or disconnected cable CH01 USER LABEL 0001 Cable Break hh mm DD MMM YYYY The TTDM 128 would display a different message for a different type of fault such as a loop imbalance or loss of communication to a specific SIM module When a fault condition is detected the following occur An audible alarm sounds The red Fault LED illuminates The LCD displays a message appropriate to the fault condition The interfaces signal the event Fault relay 4 20 mA and serial port TO REMEDY THE PROBLEM Find the problem and rectify it This may mean reconnecting the cable or finding the damaged section and replacing it If the cause of the fault is not o
54. ternal SIM or external TTSIM can be set to CFG at a time After setting the address you must remove the CFG jumper when prompted before proceeding to the next SIM unit To add a new TTSIM to the leak detection network and assign it an address gt Install and connect the TTSIM in accordance with the TTSIM Installation Instructions that accompanied it gt Install the CFG jumper on the TTSIM gt Press the MENU key to access the main menu gt Select SIM Network and press ENTER gt Select Set SIM Address and press ENTER gt Use the arrow keys to set the new address to an unused address between 02 and 127 note that address 01 is the factory default for the TTDM s internal SIM and press ENTER gt Remove the CFG jumper clip from the TTSIM then press Esc twice on the TTDM gt Repeat as necessary for each TTSIM added to the network H56853 8 10 31 To add a new TT NRM to the leak detection network and assign it an address gt Install and connect the TT NRM in accordance with the Installation Instructions that accompanied it gt Using the switches on the TT NRM base unit select a unique address see TT NRM Installation Instructions The address must not be used by any other device on the network gt Power up the system and perform a network Update or Initialization see INIT NETWORK and UPDATE NETWORK in this section gt Configure relay assignments see SETTING UP REGIONS AND RELAYS in Modifying Settings for I
55. the first channel If the TTDM 128 detects a new Service Fault or Leak event it immediately changes the display to the SIM channel affected turns on the LCD back light and pauses at that channel After several minutes or after any key is pressed the scrolling process starts again Note Use the left and right arrow keys to manually change to another SIM channel 16 H56853 8 10 TTDM 128 User Manual Please refer to the Main Menu Structure and SIM Status Menu Structure diagrams for an overview of the TTDM 128 menu structure The TTDM 128 keypad is used for navigation as described below From the Current Event Status display screen gt Press the Lert and RicHT arrow keys to manually select the SIM channel of interest gt Press the Down arrow key to access detailed status information for the SIM channel currently displayed See the SIM Status Menu section for more information gt Press the MENU key to access the many display and setup features in the TTDM 128 per the main menu See the Main Menu section for more information gt Use Up and Down arrow keys to scroll through menu options and status displays gt Use the Lert and Richt arrow keys to select individual characters when entering data gt Press ENTER to make a selection or go one level deeper into the menu structure gt Press Est to go back up one level in the menu structure Note If the TTDM 128 is left in a menu display with no keypad a
56. til the desired character is displayed There are numerous special Katakana and non English alphabetical characters available Going Up or Down cycles through all available characters Tip Use the REsET key to skip between Letters Numbers and blank When the label is complete press ENTER to save the changes otherwise they will be lost SIM STATUS The current status is displayed Status can be either Normal with location field blank Leak with location displayed in ft m zones Re alarm with location displayed in ft m zones Service Required with location displayed in ft m zones Leak cleared Cable break Loop Break Loop Imbalance An additional feature Last Alarm Values file is available from the SIM Status line The Last Alarm Values file is particularly useful in evaluating transient problems The specific cable parameters associated with the most recent alarm that has cleared are maintained in memory The values are displayed by pressing the ENTER key Example values associated with a simulated leak event are displayed below Last Alarm Values Leak 538 ft Loc Res 2097 Q Sense Res 2k0 R G Res 4192 Q Y B Res 4190 Q Press Esc to return to the SIM status screen TEST LENGTH Test Length represents the total length of the sensing circuit attached to the SIM Test Length does not change over time it will stay the same unless the system is modified sensing cable was removed or added
57. ts between the first leak and the most recent event See The Events History Log section ADDITIONAL LEAK If liquid contacts sensing cable at a significant distance from the initial leak the module will re alarm however it will indicate that this re alarm leak distance could be caused by a new leak rather than a growing leak In this case the TTDM 128 shows the re alarm location in square brackets CH01 USER LABEL 0001 Leak 370 m Re Alarm 205 hh mm DD MMM YYYY Brackets indicate that the value shown requires interpretation when an additional leak occurs the value represents the electrical center of the leaks SERVICE TO LEAK ALARM Although the TTDM 128 and TTSIM system can continue to monitor a channel when a Service Required alarm is in effect the accuracy of location may be impaired Example CH01 USER LABEL 0001 Service 257 hh mm DD MMM YYYY If sensing cable on that SIM channel detects a full fledged leak before service is performed the TTDM 128 displays a new leak alarm If the location measured is nearly the same as the earlier Service Required alarm the display would appear as below CH01 USER LABEL 0001 Leak 257 m hh mm DD MMM YYYY If the leak location is different from the earlier Service Required alarm the TTDM 128 shows a slightly different display CH01 USER LABEL 0001 Leak 190 hh mm DD MMM YYYY The TTDM 128 indicates the uncertai
58. w keys to select the desired units feet meters or zones then press ENTER gt Press MENU to return to the Current Event Status Display To change units for all channels at once gt A password is required to access the Special menu and change all units To input the password With the TTDM 128 in the Current Event Status Display press the MENU key Use the Down arrow key to select General Setup then press ENTER Use the Down arrow key to select Password then press ENTER Use the arrow keys to input the password 04000 then press ENTER Press Esc gt With the display showing the General Setup menu use the Down arrow key to select Special then press ENTER gt Use the Down arrow key to select Set All Units then press ENTER gt Use the Up Down arrow keys to select the desired units feet meters or zones then press ENTER gt Press MENU to return to the Current Event Status Display SET HOST PORT PARAMETERS For TTDM 128 s that are connected to a host computer DCS or building management system the host port parameters must be set in the TTDM network menu gt Set toggle switch SW2 located on underside of Ul board to RS485 position see feature 26 on Internal View of TTDM 128 Features diagram gt With the TTDM 128 in the Current Event Status display press MENU gt Use the Down arrow key to select TTDM Network then press ENTER gt Use the Down arrow key to select the desired parameter then
59. ys for going to the top or bottom of long scrolled lists 3 Menu Accesses menu of display and set up options see Navigating the Menu g Structure 4 Esc Goes back up one level in menu structure HINT Pressing Esc multiple times returns to the Current Events Status display From most menus pressing MENU also returns to the Current Events Status display 5 Enter Selects a menu option or enter a user supplied value E 6 Down arrow In Current Events Status display accesses detailed System Status information for the channel currently displayed In menu selections scrolls down through displays and menu options Change decrease digits or alpha characters when entering user supplied values 7 Up arrow Scrolls up in status displays and menu options Change increase digits n or alpha characters when entering user supplied values 8 Reset Resets the Leak alarm relay including TTSIM 1A and TTSIM 2 relays and TT NRM relays 9 Silence Silences the audible alarm 14 H56853 8 10 u AE Ls TTDM 128 User Manual The 12 tem Displ The icons represent the four conditions of the leak detection network The LEDs indicate which conditions are currently active Monitoring Service Leak Fault Note The Service Leak and Fault LEDs will illuminate if an alarm condition exists on any SIM Multiple LEDs may be illuminated simultaneously to indicate multiple types of alarms although the
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