User Manual - Tecnolimit
Contents
1. eere eere 23 General Set Up See icine RR 23 Leak SetU 24 SIM NOVO us uci tini dodo ventas 25 ING OU RET 27 M 28 Event Response 29 Leak Detection and Location Events 29 Service EVenN S fH adu TI 30 mM IIT mM 31 Multiple Events 32 nennen nnn nnn nnns 34 Appendix 1 Events Glossary 36 Appendix 2 Connection to Other Devices 37 H56853 12 03 Overview H56853 12 03 TTDM 128 User Manual READ BEFORE USE Please read these instructions carefully and keep them in a safe place preferably close to the TTDM 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 T2. When a length of sensing cable is divided into regions the TTDM 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 low limit starting distance and a high limit ending distance Regions can contain the entire circuit or only a part of the circuit and they may overlap each other To create regions for a circuit repeat for each desired region Select the appropriate SIM channel gt Use the Down arrow key to select Add Regions Relays then press ENTER Select Region No from the menu and press ENTER Use the arrow keys to select a region 1 10 and press ENTER gt Select Start from the menu and press Enter This value represents the starting distance for the region Using the arrows enter low limit and press ENTER gt Select End from the menu and press Enter This value represents the ending distance for the region Using the arrows enter a high limit and press ENTER gt Select ID from the menu and press Enter Using the arrows assign the region an alphanumeric tag and press ENTER If a TT NRM is connected and will be utilized with this region continue as follows Note Each TT NRM relay can only be assigned to a single region and a single function Select Region Relay and press ENTER gt Using the arrows assign the relay to be activated for a Leak Alarm Press ENTER Repeat this process fo
3. been no keypad activity for approximately 30 minutes Current Event Status Display Main Menu Events History System Status SIM network J current status 2 current status Network J current status 2 current status Leak Service Reqd Faults Cable S Comm Other NRM Comm Error UI Version TTDM General Setup Time Date Language English Francais Deutsch Espanol Italian Japanese Password Special Leak Setup ReAlarmlnt Auto Reset AudibleAlarm Alarm Reflash Alarm Reset SIM Network Set SIM Address nit Network Update Network H56853 12 03 TTDM Network Baud Modem Auto Answer Dial Hang up 485 Address TTDM in Master Slave Terminal Print Events Self Test UI Version Memory Tests SI Test 4 20 mA Test Display Test UI Relay Test Keypad Test Ext Comm Loop Test NRM Relay Test Ground Fault Test Current Event Status Display SIM Status SIM Address select different SIM 0 change SIM ID current Status last alarm value TestLength feet metres Zones Sense Cur E Location Loc Res Serv Alert gt Set Service
4. Alert Normal 50 uA High 20 uA Low 80 uA TT500x 40 uA Never Sense Res Leak Alarm lt Set Leak Alarm Normal 18 High 30 Low 14 TT500x 10 R G Res Y B Res SI Version SI Comm H56853 12 03 TTDM 128 User Manual Add Regions Relays Region Start End ld Region Relay Trouble Relay Service Relay SIM Relay only appears for TTSIM 1A Alarm Mode jae 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 17 Status of Individual SIM 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 Ifin amenu press Esc one or more times or press Menu to return 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 SIM Address ID SIM Status TestLength Sense Cur Serv Alert gt Sense Res Leak Alarm lt R G Res Y B Res SI Version 51 Comm Add Regions Relays address user
5. 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 See feature 29 on page 11 to adjust the volume choices Off On default On 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 when 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 H56853 12 03 24 TTDM 128 H56853 12 03 User Manual SIM Network gt 1 1 1 1 The SIM Network menu has the following submenus Set SIM Address Init Network Update Network SET SIM AD
6. 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 12 03 10 TTDM 128 Features TTDM 128 enlarged 000 ooo 56853 12 03 TTDM 128 User Manual Identifying TTDM 128 Features External View A 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 Q Reset key Q Menu keys Internal View B User interface UI 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 Voltage selector 110 220 volts Spare fuse Ground earth stu
7. defined ID 38e T xxx uA xx uA 202001 O oor 0 28998 Only four lines are displayed at one time Arrows the scroll bar indicate if other entries can be accessed with the up or down arrow keys A description of each line on the SIM Status Menu appears below SIM Address Channel number for information in current display SIM status Test Length H56853 12 03 An alphanumeric label specified by the user maximum 14 characters SIM Status can contain any of the following text depending on the state of that SIM channel SIM Normal Leak location Re alarm new location Service Required location Leak cleared Cable break Total length of sensing cable attached to the selected SIM The test length should be the same as that recorded when the channel was mapped If the length is not the same it may mean that the system was modified sensing cable was removed or added The Test Length is typically about 196 longer than the physical or mapped length for the channel this is normal TTDM 128 User Manual Location The current location or electrical center of the leak or cause of a Service alarm If the SIM status is Normal the Location entry is blank Sense Cur This current measured in indicates the condition of the sensing cable If a leak is detected in the channel this rises to 270 uA or more depending on the type of TTSIM In a c
8. 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 uncertainty about the leak location due to the prior Service Required alarm condition by showing the location in brackets H56853 12 03 33 Maintenance CLEANING THE 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 units is a 200 mA 250 V quick acting microfuse It has an F1 rating characteristic code F quick acting Use no other type of fuse or the TTDM could be damaged or could fail to perform properly One spare fuse is provided in the TTDM see feature 15 on page 11 ROUTINE MAINTENANCE It is recommended that the TraceTek system 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 C
9. 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 page 18 gt Press Menu to return to the Current Event Status Display H56853 12 03 38 56853 12 03 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 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 mA IDEE Electronics fault or loss of power Fault SIM communications Fault cable break Fault cable damage
10. 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 IMPORTANT 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 of the manual on page 29 Normal Operation Line 1 CH01 SERVER ROOM Line 2 LEAK AT 125 M Line 3 Line 4 12 30 21 01 2003 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 a key is pressed identifies the channel currently displayed showing the SIM channel number and user defined ID tag up to 14 characters For a new system the user defined label is blank until edited by the user see page 5 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 may advise action or provide special instructions or in the c
11. one sensing wire with a ground earth path Cable Restored Displayed when cable returns to normal after any fault condition 51 Comm Error Communications problem between TTDM 128 unit and any installed SIM channel 51 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 H56853 12 03 36 Appendix 2 TTDM 128 User Manual Connection to Other Devices H56853 12 03 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 1
12. page 5 network Change the leak detection channel ID tags for each TTSIM if required page 5 Up to 1500 m 5000 ft MULTIPLE TTDM 128 WITH NETWORK SYSTEM sensing cable per TTSIM One of the TTDMs must be selected as the master TTDM all remaining TTDM s in the network will operate in slave mode At each slave gt Perform Basic TTDM 128 Setup page 5 Assign the leak detection channel tag SIM ID if required page 5 WW Make sure that the Host Port Mode Selector Switch the User Interface board is set to RS485 gt Set the host port parameters as follows page 6 Add TTDMs into the SIM network where it makes sense to have a local Set baud rate to 9600 display relays etc Set TTDM mode to Slave gt Initialize the SIM Network page 26 At the master TTDM Perform Basic TTDM 128 Setup page 5 Be sure the settings match those of the Primary TTDM Perform the Host Port Setup as required page 6 Check that the TTDM mode is set to Master Change the Communication Timeout parameter With the TTDM 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 ENrER 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 Us
13. the number LANGUAGE Select from available options English Frangais Deutsch Espanol Italian and Japanese PASSWORD Entering a Password When the user attempts to change a restricted setting a password prompt appears gt Use the Lert and Richt arrow keys to move to each digit Use the Up and 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 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 H56853 12 03 23 Leak Setup S SS The Leak Setup menu has the following submenus ReAlarm Int Re Alarm Interval Auto Reset AudibleAlarm 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 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 Use this to automatically alert the next shift when the system has an uncleared event leak cable break fault or service required AUTO RESET The TTDM is factory set to require a manual reset following a leak event This allows the user to verify that
14. 024 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 From the Current Events Status display press MENU Use the arrow keys to select Events History then press ENTER gt Use the UP and Down arrow keys to scroll through the events history log The events will be displayed in chronological order with the most recent event displayed first Hint To quickly move to a view of the most recent event press the Lert arrow key To move to the oldest event press the Ricut arrow key TYPICAL TTDM EVENT DISPLAY Events History Alarm Silenced HH MM DD MON YYYY TYPICAL SIM EVENT DISPLAY Events History CH01 USER LABEL 0001 Leak 237 ft HH MM DD MON YY YY An arrow at the bottom right hand corner indicates that there are further events below occuring before the one being displayed H56853 12 03 22 TTDM 128 User Manual Detailed Setup 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
15. 7 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Relay Logic Each relay provides two Form C relay contacts with normally open and normally closed contacts both provided 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 4 J9 Relays wired in series NC NO COM Ay 30 31 32 NC NO COM 18 19 20 NC 21 32 NC NO COM 24 25 26 NC 27 c Monitoring circui open on alarm Close on Alarm SERVICE RELAY LEAK RELAY FAULT RELAY 250V 5A 250V 5A 250V J25 J9 Relays wired in parallel NC NO COM B 24 25 26 NC NO COM 0 30 31 32 Monitoring circuit close on alarm 37 OPTIONAL 4 20 INTERFACE The TTDM 128 can be equipped with an analog 4 20 mA interface which communicate the status of a selected SIM channel The TTDM 128 adjusts its current output based on whether an alarm cond
16. DRESS This command allows the user to assign a new address to either the TTDM s internal SIM or an external TTSIM This function is vital to starting up a new leak detection network To assign an address to a TTSIM it must be connected to the TTDM and able to communicate with it IMPORTANT Be sure to assign a unique SIM address or communications problems will result To set SIM or TTSIM addresses the SIM TTSIM to be addressed must be set to the configure mode This is accomplished by placing a jumper on the CFG pins J1 on the TTDMSs 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 SIM or TTSIM can be set to CFG at a time After setting the address you must remove the CFG jumper before proceeding to the next SIM TTSIM To add a new TTSIM to the leak detection network and assign it an address 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 Select SIM Network and press ENTER Select Set SIM Address and press ENTER Select New Address and press ENTER Use the arrow keys to set the new address to an unused address between 001 and 127 note that address 001 is the factory default for the TTDM s internal SIM and press Remove t
17. EAKS 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 locate TraceTek representative 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 on page 5 then perform an Update Network command page 26 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 menu End term
18. G position see TTSIM Installation Instructions With the TTDM in the S M Network menu use the UP and Down arrow keys 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 twice gt Press Menu to return the TTDM to Current Event Status Display mode CHANGING LEAK CHANNEL ID TAGS Each leak detection channel TTDM or TTSIM can be given a unique alpha numeric identification tag To change the ID tag of a channel gt With the TTDM 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 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 CHANGING LEAK 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 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 key to select TestLength then p
19. SINGLE CHANNEL STAND ALONE SYSTEM See Quick Setup on page 7 TTDM 128 with up to 1500 m 5000 ft of TraceTek sensor cable or a combination of sensor cable and point sensors SINGLE CHANNEL WITH REMOTE REPEATER See Quick Setup on page 7 Stand alone system with additional TTDM 128 acting as a remote display Remote panel mimics all conditions at the primary panel Primary panel acts the same as a stand alone TTDM 128 system Modbus interface to a host computer is only available at the remote TTDM SINGLE TTDM 128 WITH NETWORK SYSTEM See Quick Setup on page 8 Asingle TTDM 128 is used as the master module for a network of up to 126 additional TraceTek modules TTSIM TT NRM MULTIPLE TTDM 128 WITH NETWORK SYSTEM See Quick Setup on page 8 The same as the single TTDM network system except with additional TTDM 128 s acting as slave modules One TTDM 128 acts as the network master the other TTDM 128 s act the same as stand alone systems Additional TTSIM and TT NRM modules can be installed on the network up to a total of 127 modules including TTDM s H56853 12 03 Remote Repeater TTDM Master Primary TTDM Slave RS 485 twisted pair cabling Maximum of 126 TTSIMs Up to 1500 m 5000 ft sensing cable per TTSIM Add TTDMs into the SIM network where it makes sense to have a local display relays etc Quick Setup Time saving hint fthe space to the right is bla
20. Service Required alarm loop imbalance Normal condition and leaks Output mA System normal 5 0 20 0 Leak value scaled to indicate location of leak 39 TTDM 128 TraceTek Leak Detection Master Module For more information see www tracetek com www tycothermal com Or contact us at one of these locations Worldwide Headquarters Europe Asia Tyco Thermal Controls Tyco Thermal Controls Tyco Thermal Controls 300 Constitution Dr Staatsbaan 4A 9th Floor Yeul Chon Building Menlo Park CA 94025 1164 3210 Lubbeek 24 1 Yeoido Dong USA Belgium YeungDeungpo ku Tel 800 545 6258 Tel 32 16 213 511 150 010 Seoul South Korea Fax 800 596 5004 Fax 32 16 213 600 Tel 82 2 2129 7731 Fax 82 2 785 4700 info tycothermal com www tycothermal com 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 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 Specificatio
21. TTDM 128 Tr a TraceTek Leak Detection Master Module User Manual H T f L L F i H E A po 4761 Table of Contents Overview 4 3 System Configurations 3 CS SU 5 Common Setup J Configuration 7 4 1 11 9 TTDM 128 Network _ 9 Description of TraceTek Leak Detection System 10 11 Identifying TTDM 128 11 The TTDM 128 12 The TTDM 128 System Display 13 Normal Operation eere nennen 14 Current Event Status Display 2 2 14 Navigating the Menu 4 2222 14 Status of Individual SIM channels 18 Modifying Settings for Individual SIM Channels 20 Events History LO 22 Detailed Setup
22. 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 update an existing network without resetting the status of existing SIM s Select SIM Network and press ENTER Select Init Network and press ENTER IMPORTANT For Master Slave networks the TTDM 128 configured as the Slave device must be initialized or updated before the Master unit H56853 12 03 26 56853 12 03 TTDM 128 User Manual Network gt 1 1 1 1 1 Access the TTDM Network menu through the Main Menu The TTDM Network menu has the following submenus Baud Modem 485 Address TTDM Terminal Print Events These parameters affect only the serial port for external communications features 22 26 amp 27 in the diagram on page 11 The first four submenus require password entry BAUD Use this option to select the baud rate of the external communications host serial port Standard values are from 600 to 19200 baud are available 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 Dial allows the user to program an 11 digit numerical string into the menu Hang up allows the user to se
23. ase of leak re alarm indicates the current status of the SIM channel identified on Line 1 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 contrast may be adjusted feature 30 in the diagram on page 11 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 available SIM channel Once the last SIM channel is displayed the process starts again at the first channel If the TTDM detects a new Service Fault or Leak event it immediately jumps the display to the SIM channel affected turns on the LCD back light and pauses at that channel number for several minutes Use the left and right arrow keys to manually select the channel displayed Navigating the Menu Str r Please refer to the Menu Structure diagram on page 16 for an overview of the TTDM 128 menu structure Refer to the diagram on page 12 to locate the menu keys described below H56853 12 03 14 56853 12 03 TTDM 128 User Manual From the Current Event Status display gt Press the Lert and RIGHT arrow keys to manually select the channel you require displayed gt Press the Down arrow key to access detailed status information for the chann
24. d Gland plate Fault relay terminals removable Leak relay terminals removable Service relay terminals removable 4 20 mA port terminals removable RS 232 485 external communications serial port terminals removable Sensing cable terminals removable RS 485 TT SIM network terminals removable Ribbon cable 5485 232 toggle switch Test Port DB 9 connector for temporary connection Reset pins Volume adjustment 600600000 OO00000000000000909 LCD contrast adjustment TraceTek TTDM 128 1 Test 2 Left Right arrow 3 Menu 4 Esc 5 Enter 6 Down arrow 7 Up arrow 8 Reset 9 Silence H56853 12 03 i Activates limited series of self tests additional self tests are accessed through the menu see page 28 In Current Events Status display manually select the channel displayed When EI gt inputing numbers or text select digit to change In menus act as express keys for going to the top or bottom of long scrolled lists Accesses menu of display and set up options see Navigating the Menu c Structure on page 14 Goes back up one level in menu structure B 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 Selects a menu option or enter a user supplied value In Current Events Status display accesses detailed System Status i information for the channel cu
25. 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 obvious by visual inspection it is often useful to subdivide the system and test individual sections with a TraceTek Portable Test Box As soon as the fault is rectified the relay LED and LCD display return to their normal state H56853 12 03 31 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
26. e Modem Define modem dialing strings 485 Address Set the TTDM s MODBUS address TTDM Select the host port mode Master or Slave The password for this parameter is 04000 Note For communication with automation systems PC s and other host systems set the port to Master Slave mode is used only for communication to a TTDM operating as a Remote Display H56853 12 03 Remote Repeater TTDM Master H56853 12 03 Primary TTDM Slave RS 485 twisted pair cabling TTDM 128 User Manual nfiguration ifi STAND ALONE SINGLE CHANNEL SYSTEM Perform Basic TTDM 128 Setup page 5 Assign the leak detection channel tag if required page 5 Perform the Host Port Setup if required page 6 SINGLE CHANNEL WITH REMOTE REPEATER Before powering up the system Remove the internal Sensor Interface Board from the Remote Repeater TTDM gt Connect the RS 485 host port J13 of the Primary TTDM to the TraceTek Network port J10 of the Remote Display TTDM Remote Display Master TTDM Primary Slave TTDM J10 J13 5 485 XMTRS RS 232 485 EXT COM PORT 485 485 RX A TX B 3 6 Remote repeater RS 485 connection diagram You can now power up the system and proceed with setup as follows At the Primary Slave TTDM gt Perform Basic TTDM 128 Setup page 5 Assign the leak detection channel tag if required page 5 Make sure that the Host Port Mode Selector Switch on the User Interfac
27. e board is set to RS485 gt Set the host port parameters as follows page 6 Set baud rate to 9600 Set TTDM mode to Slave At the Remote Repeater Master TTDM gt Perform Basic TTDM 128 Setup page 5 Be sure the settings match those of the Primary TTDM gt Perform the Host Port Setup as required page 6 Check that the TTDM mode is set to Master Change the Communication Timeout parameter With the TTDM 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 ENrER 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 gt Initialize the SIM network With the TTDM in the Current Event Status display press Menu Use the Down arrow key to select SIM Network then press ENTER Use the Down arrow key to select Init Network then press ENTER Change the leak detection channel ID tags page 5 to match what was set at the Primary TTDM SINGLE TTDM 128 WITH NETWORK SYSTEM gt Perform Basic TTDM 128 Setup page 5 Maximum of 126 TTSIMs Perform the Host Port Setup if required page 6 n Assign a unique address to each TTSIM
28. e 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 page 26 Change the leak detection channel ID tags page 5 to match what was set at the Primary TTDM H56853 12 03 Introduction H56853 12 03 TTDM 128 User Manual The TraceTek TIDM 128 Network 1 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 s operating in slave 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 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 communication to a host computer control system or building management system using RS 232 RS 485 hardware the MODBUS
29. ek 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 X Alarm and Locating Module Modular Branching Connector Sensing Cable 22 daisy chained together required at end to provide as much of every branch coverage as needed 2 P 2 2 P 2 2 2 2 2 2 o Hold Down Clips Modular Jumper Cable between module and area monitored 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
30. el currently displayed described in detail on page 18 gt Press the Menu key to access the many display and setup features in the TTDM gt Use Up and Down arrow keys to scroll through menu options and status displays gt Use the Lert and Ricut 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 Press Esc to go back up one level in the menu structure Note If the TTDM 128 is left in a menu display with no keypad activity for 30 minutes it automatically returns to the Current Event Status display MENU OPTIONS The following are the options presented at the Main Menu level Event History System Status General Setup Leak Setup SIM Network Network Self Test Each of these menu items is described 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 page 23 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 when complete 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
31. he CFG jumper clip from the TTSIM then press Esc twice on the TTDM Repeat as necessary for each TTSIM added to the network To add a new TT NRM to the leak detection network and assign it an address Install and connect the TT NRM in accordance with the Installation Instructions that accompanied it 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 page 26 Configure relay assignments see SETTING UP REGIONS AND RELAYS page 21 25 UPDATE NETWORK Use this command to update the TraceTek network when TTDM 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 see page 5 When activated this command immediately searches all possible addresses to determine what 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 Select SIM Network and press ENTER Select Update Network and press ENTER INIT NETWORK Use this command to initialize the TraceTek network once all TTDM TTSIM and TT NRM units have been connected and assigned unique addresses
32. ination 9 End termination 35 Appendix 1 Events Glossary Type of Message Description Event Power Power Down The time 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 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 Loop Break Break in the Red Green loop of the sensing cable Loop Imbalance Resistance of the two cable loops indicates more than 259 difference in measured resistance May be early indication of cable deterioration or damage or electrical contact of
33. ition exists in the selected channel and when a leak is detected on the location 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 Vde Rmax 24 900 ohms 18 600 ohms 12 300 ohms 4 20 mA Wiring Before wiring the external equipment to the TTDM check that jumpers J11 and J12 OPTION INT PWR JMPRS on the TTDM 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 J2 IRTN IOUT V VRTN IRTN IOUT V VRTN 11 12 13 14 11 12 13 14 24 Vdc supply 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 make full use 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 Use the Down arrow key to select 4 20 mA Test then press Enter Use the Down arrow key to select 20
34. lean leak free sensing circuit the current should be 5 pA or less If the current rises above 20 service is recommended as it may indicate the presence of contamination Serv Alert gt This setting controls Service Required Alarms If Sense Cur is greater than this value the TTDM signals a Service Alarm Sense Res This is the resistance measured between the sensing wires For a clean leak free sensing circuit this resistance is more than 20000 If liquid is detected it will drop to less than 30 KO If the resistance is changing it may indicate an event in progress Leak Alarm lt This setting controls Leak Alarms If Sense Res drops below the threshold level the TTDM signals a Leak Alarm R G Res These are the resistances of the Red Green and Yellow Black Y B Res loops in the TraceTek sensing circuit If these values are significantly different from each other the TTDM will signal a Loop Imbalance alarm indicating damage to a sensing cable or connector SI Version This indicates the software version operating in the SIM microprocessor 51 Comm This indicates the success rate in percent for communications between the TTDM 128 and the SIM channel selected A value below 90 may indicate a faulty connection or damaged RS 485 cable Add Regions Relays This menu item accesses a submenu that lets the user divide a length of sensing cable into as many as 10 smaller logical sections regions and assign relays to
35. 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 on 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 addition updates the display based on the sequence of events in a SIM channel MOVING LEAK The TTDM 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 would display CH01 USER LABEL 0001 Leak 110 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 01 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
36. nd a hang up command to an external modem attached to the serial port 485 ADDRESS When more than one TTDM is connected to a host computer on an RS 485 network each TTDM unit must be assigned a unique address This menu allows the user to assign the TTDM an 5 485 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 Use this menu to select this module to be a Master or Slave 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 during system start up 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 Event History Log for later analysis Do not use this when connected to a Modbus network as it may disrupt communications 27 Se Test The Self Test menu provides access to specific user selected test routines Ul Version Memory Tests SI Test 4 20 mA Test see Appendix 2 Connection to Other Devices for details Electronics Fault 51 Comm Error Cable Break Loop Imbalance Ser
37. nk press the right arrow to duplicate the last letter entered Use the Reset key to jump between letters numbers and blank H56853 12 03 TTDM 128 User Manual 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 Power up the TraceTek system Wait while the TTDM completes its self test and network initialization process gt With the TTDM 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 2 to 127 address 1 is the default address of the TTDM 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 on Current Event Status display press Menu gt Use the Down arrow key 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 CF
38. nly an estimate 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 an accurate location However the indicated location is always a good point from which to begin a troubleshooting procedure The following actions should be taken Silence the audible alarm 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 state No reset is required H56853 12 03 30 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 on page 35 for further information Fault Events INTRODUCTION Several conditions could lead to a fault alarm Acable is disconnected A cable is damaged Aconnection is damaged A specific 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 YY YY The TTDM 128 would display a different message for a
39. ns 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 Trace Tek 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 2003 Tyco Thermal Controls LLC H56853 12 03
40. 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 would re alarm again and the re alarm location is updated accordingly CH01 USER LABEL 0001 Leak 110 m Re Alarm 120 m hh mm DD MMM YYYY H56853 12 03 32 TTDM 128 User Manual Hint Use the Events History to track the events between the first leak and the most recent event See The Events History Log section on page 22 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 realarm leak distance could be caused by a new leak rather than a growing leak In this case the TTDM 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
41. ontact 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 damaged 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 H56853 12 03 34 Alarm and locating module H56853 12 03 End termination TTDM 128 User Manual INVESTIGATING L
42. protocol Event history log 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 as well as 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 The TTDM 128 s internal SIM has been designed for use with the following TraceTek sensing cables T1000 water 13000 Acids and Aqueous chemicals T5000 liquid hydrocarbon fuels and oils T5001 organic solvents A variety of TraceTek Point sensors 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 TraceT
43. r the Trouble Relay and Service Relay If the SIM is a TTSIM 1A or TTSIM 2 continue as follows 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 and de energized for alarms or select ON if you want the relay to be normally de energized and 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 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 TTSIM 1A and TTSIM 2 relays will activate for any leak on the circuit regardless of region definitions H56853 12 03 21 Region setup example D Ha Remo RemD Events History Log One extremely useful function provided by the TTDM is the ability to record a series of events The TTDM module keeps track of a list of up to 1 024 events if 1
44. r the system gt Reset the leak relay This occurs automatically if Auto Reset is enabled see page 24 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 TT3000 or replace the affected section TT5000 TT5001 series 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 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 button is pressed the relay returns to normal the red Leak LED extinguishes 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 page 24 H56853 12 03 29 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
45. raceTek distributor or visit our web site http www tycothermal com IMPORTANT There should be a System 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 ater versions of software may provide new features and change certain other details This manual documents UI software version 3 10i System Configurations 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 modules In all cases each TTDM 128 offers the following features and capabilities Directly monitor the equivalent of up to 1500 m 5000 ft of TraceTek sensor cable and point sensors 1024 event memory Built in status and alarm relays Optional 4 20 mA output TTDM 128
46. ress ENrER Use the Up Down arrow keys to select the desired units feet meters or zones then press ENTER Press to return to the Current Event Status Display To change units for all channels at once Apassword is required to access the Special menu and change all units To input the password With the TTDM 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 Press to return to the Current Event Status Display SET HOST PORT PARAMETERS For TTDM s that are connected to a host computer DCS or building management system the host port parameters must be set gt With the TTDM 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 press Enter If asked for a password input 00010 and press Enter The parameters that can be changed Baud select host port baud rat
47. rrently displayed see page 14 for details In menu selections scrolls down through displays and menu options Change decrease digits or alpha characters when entering user supplied values Scrolls up in status displays and menu options Change increase digits or V alpha characters when entering user supplied values Resets the Leak alarm relay including TTSIM 1A relays and TT NRM relays Silences the audible alarm 56853 12 03 TTDM 128 User Manual The TTDM 12 m Displ The icons represent the four conditions of the leak detection network The LEDs indicate which conditions are currently active Monitoring Leak Fault 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 alarms could exist on different SIM channels MONITORING This 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
48. the system the maximum current flows If a SIM detects a lower but significant level of current flow between the loops the TTDM 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 debris or carbon based dust from air handling units printers or copiers While service alarms should be investigated they do not threaten the operation of the system The TTDM 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 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 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 o
49. those regions Dividing a length of cable into regions can help the user 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 condition See Setting Up Regions page 21 H56853 12 03 19 Modifvina Settinas for Individual SIM Channel To change the alphanumeric tag for the selected SIM channel Select the appropriate SIM channel as described previously in this section gt Use the Down arrow key to select ID then press ENTER gt Use the Lert and arrows to select a character position to modify Tip Use the Reset key to tab between Letters Numbers and blank gt Use the Up and Down arrows to cycle through all available characters until the desired character is displayed There are numerous punctuation currency Katakana and non English alphabetical characters available Going up or down cycles through all available characters gt Press Enter once the label has been set up as desired To change the length units for the selected SIM channel Select the appropriate SIM channel as described previously in this section gt Use the Down arrow key to select Test Length then press ENTER gt Use the Down arrow key to select the desired units then press ENTER CHOOSING APPROPRIATE LEAK ALARM AND SERVICE REQUIRED LEVELS Leak sensitivity and Service Required levels should be based on the t
50. vice 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 NRM Relay Test tests the relays on any connected TT NRMs Ground Fault Test 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 pressing the Test key when the display is in the Current Event Status Display mode This key is not password protected H56853 12 03 28 TTDM 128 User Manual Event Response Leak Detect wi Location Event 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 page 24 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 Silence the alarm if necessary Locate the leak and clea
51. ype of liquid being detected and the environment in which the sensing cable is installed Normal default for most applications High for de ionized water Low for particular active or exposed applications 500 for systems using hydrocarbon sensing cable TT5000 5001 to monitor doublewall pipes and tanks Never only available for Service Required setting to disable the Service Alarm Password is required to change leak and service sensitivity settings To change the leak alarm sensitivity Select the appropriate SIM channel as described previously gt Use the Down arrow key to select Leak Alarm lt then press Enter If a password is requested input the value 00010 then press ENTER gt Use the Up Down arrow keys to choose a sensitivity level Normal High Low or 500 then press ENTER To change the Service Required setting Select the appropriate SIM channel as described previously gt Use the Up Down arrow keys to select Serv Alert gt then press Enter password is requested input the value 00010 then press ENTER gt Use the Down arrow key to choose a Service Alert level Normal High Low TT500X or Never Press ENTER H56853 12 03 20 TTDM 128 User Manual SETTING UP REGIONS AND RELAYS 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
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