product manual
Contents
1. 4 to 9 No Connection 3 4 3 17 PIN MS FEMALE CONNECTOR EXT I O This carries required important signals to control room These include current loop relay contact voltage output alarm Ack amp RESET Pin Signal Pin number Signal number A Current O P ve l out ve H N C Changeover ll B Current O P ve I out ve GND J N O Changeover ll C Voltage O P ve V out ve K COM Changeover l D Voltage O P ve V out ve L N C Changeover l E Alarm Acknowledge M N O Changeover l F Alarm reset N R P No Connection G COM Changeover ll S Data ee T Data 3 4 4 5 pin MS MALE CONNECTOR TO DETECTOR PROBE This gets connected to external detector probe Detector output TTL is converted to RS485 format amp transmitted to main unit through long connecting cable between detector probe amp Electronic unit Pin Number A m UO g Signal GND 5V RS 485 A Data l For connecting to detector side RS 485 B Data RS485 Transceiver Fraction of HV 9 pin D Female Connector RS485 IN amp RS845 OUT 5 pin MS connector Male connector To Detector Probe 9 pin D Male Connector RS485 IN amp RS845 OUT 17 pin MS Female connector EXT I O 3 pin MS Male connector Mains Fuse holder Fig Side panel connectors Detector probe with 5 pin MS connector male Detector 3 5 ACCESSORIES The following are the additional mechanical accessories provided2. are Rs 2500 Packing Freight charges You can email a work order accepting these charges 2 Email your work order and despatch send the equipment to our works if it is 5 years old or less including details of mode of transport sent with docket particulars 3 Also mention in your work order amp clearly indicate that you will agree to pay calibration charges amp also equipment repair charges additionally if the unit is faulty amp requires repairs before one can take it up for calibration 4 You are requested to ensure good packing to avoid any transportation damages Especially if there are external detector probes they are to be packed with sufficient soft foam to ensure no damage in transportation 5 Use only the specified following mode of transportation system for dispatching on door delivery basis XPS GATI cargo Courier RPP Speed Post parcel etc Send the equipment on freight paid basis Equipments sent by other methods such as Rail Road etc will not be collected Also you can cover for transit insurance both ways if you wish Nucleonix system is not responsible for any transportation damages or loss during transportation both ways 6 Immediately on receipt of the equipment we will send an acknowledgement amp also a proforma bill by email post 7 Based on the proforma bill once we receive the payment equipment will be dispatched back by similar mode of transportation as mentioned above HOW TO AVAIL CALIBRATI
3. at this facility before they are shipped dispatched u F a o ia wi CRC 2 camera has Co 60 standard obtained from Bhabha Atomic Research Centre Mumbai It is a certified source ANNUAL MAINTENANCE CONTRACT AMC Annual maintenance contract AMC services For all sophisticated instruments amp systems and also for installed monitors amp networked systems in a nuclear facilitv or a Radiological lab or in a Medical cvclotron facilitv where no of instruments are networked it is advised that customer enters into an economical Annual maintenance contract with Nucleonix svstem Detailed AMC proposal can be obtained from our customer support division CSD by giving required inputs Inputs required bv our CSD to send vou AMC proposal e Name year amp data of purchase SI Nos of equipments Model No s No of equipments for which AMG is required Additionally no of calls per annum required for preventive 8 breakdown maintenance may also be indicated Advantage of entering into AMC e Equipment services offered will be prompt amp timely e Nucleonix systems maintain required spares spare tested PCBs detectors amp other critical components which may become obsolete e Obsolescence in electrons is quite rapid If you enter into AMC guaranteed service for the period of AMC will be the responsibility of Nucleonix Systems e Nucleonix Systems will maintain Engineers at your disposal to attend to AMC calls on
4. ANI 10 9918q WO S8rSu o ILL J0 1 AU09 TLL O JIE A BLOCK DIAGRAM OF GATE MONITOR TYPE GA727 Drg A 01 13 5 1 5 2 CHAPTER V OPERATING INSTRUCTIONS INTRODUCTION This chapter illustrates details on configuring and operating the instrument for a desired installation in a plant environment Basically operating instructions are illustrated with the help of menu options responses that appear on LCD LED displays Each of the menus facilitate the user to choose function value to be set or entered as desired for its operation at the installed location An important note to follow for the user is A key can be used to increase the value at the cursor position toggle the option Y key can be used to shift the cursor position from right to left toggle the option POWER ON CONDITION When instrument is switched on initially the audio visual observations noticed till the indications shown are stable is called power on condition When the power is switched on the following audio visual indications are noticed First to start with one audio beep is heard Followed by this the following visual indications will be lit Red cluster LED window will flash for a while and goes off Followed by this normal cluster LED window will be lit additionally other LED s for dose rate unit indication will all glow for a while and default selected unit LED will lit permanently The status of LCD and large L
5. DISPLAY 16x2 LCD dot matrix display This is a 16 X 2 alpha numeric LCD dot matrix display and responds to all the commands from the keypad and displays dose rate in acquisition mode with A blinking It also displays the different parameters like Preset alarm level Reset mode Audio status Baud rate Calibration adjustment Audio frequency adjustment etc UNIT INDICATIONS There are FOUR LED indications to show up the unit selected for measurement by the user These are uR hr wSv hr amp cpm A C MAINS LAMP This is a neon lamp indication which glows when the unit is in ON condition FRONT PANEL CONTROLS KEYPAD This is a tuctile keypad with electrical connections taken to the main PCB The follow fig shown the key functions provided on this keypad Functions of these keys are explained in detail under operating instructions 3 3 3 3 1 3 3 2 3 3 3 3 4 3 4 1 EHT key On pressing this button it shows up EHT applied to detector on LED display PROG key Using this button all program functions available can be checked Of course the display of these functions is indicated on 16x2 LCD display A key can be used to increase the value at the cursor position toggle the option Y key can be used to shift the cursor position from right to left toggle the option RESET key Reset key is used to reset the alarm condition In auto reset once dose ra
6. RESET are used for acknowledging and resetting the unit during Active alarm condition The unit has user selectable options like Alarm preset level Baud rate for serial communication Reset mode auto or manual and other system settings Pressing EHT key displays the current EHT value in the detector probe For external detector arrangement the detector probe can be connected to main Electronic unit by a multicore cable with both end connector arrangement upto a maximum of 30 meters or even more Some important features of this unit are U U DO LU LU L Microcontroller based design with extensive use of peripheral devices amp serial bus interface has been emploved Dose rate range covered is 0 10000 uR hr by default with option of selection of other three units namely uSv hr amp CPM Auto ranging amp auto TC selection in the range of 30 sec to 0 5 sec depending upon detector count rate Large size 6x7 segment LED indication for dose rate is provided Designed using LND GM tube type GM132E or its equivalent Large size WINDOWS for NORMAL 8 ACTIVE alarm condition 16x2 LCD dot matrix display for visualization amp setting of various options Radiation to be detected Range Detector Accuracy EHT Display Overload Over range Recorder output Recorder output stability Time Constant Normal Slow Abrupt detection Calibration Accuracv CHAPTER II TECHNICAL SPECIFICATIONS Gam
7. along with the main unit Wall mounting detector probe clamp Seismic qualified floor Wall mounting bracket for mounting stand for Electronic Electronic Unit Unit 10 CHAPTER IV BLOCK DIAGRAM amp DESCRIPTION Gate monitor GA 27 is shown in block diagram on the next page It mainly consists of two parts a Detector probe with associated electronics amp b Main measuring unit with majority of uC based functional electronics amp embedded code 4 1 4 2 DETECTOR PROBE ELECTRONICS This consists of energy compensated detector 7807 or its equivalent with pulse processing electronics TTL to RS485 converter and 500V HV module for detector biasing Detector output signals generated from RS485 transmitter chip are fed to main PCB through 5 pin I O cable connected to the Electronic unit These signals are received by RS485 receiver chip amp counted by a 6 digit BCD counter in the main PCB The output of this counter is read by micro controller continuously The 5V power supply required for HV module and pulse processing SIL chip generated on main board is taken through a 5 pin I O cable to this detector probe unit MAIN PCB CIRCUITS Low voltage supplies 5V 18V 24V 5V iso are generated through mains transformer secondary amp three terminal regulator chips All these supplies are used internally to power up various circuits for their functionality A four channel ADC reads fraction of HV amp LVs amp
8. as OK Following this indication user can now go to the next option in menu by again pressing PROG key This prompts a menu as calibration factor CALIBRATION FACTOR This is a feature provided in the design to facilitate the user to set calibration factor such that the calibration accuracy is within specified range It may so happen that detector to detector sensitivity may slightly vary amp by setting this value suitably one can get desired calibration accuracy Range provided is 0 75 to 1 25 for calibration factor CALIB XX XX FACTOR Bv default it is set to 1 00 default If user wants to go through calibration again after changing the calibration factor he may do so Having set this upon pressing PROG key the next menu option that appears is SET UNIT SET UNIT setting of Engineering unit Here there are four options that appear in the LCD displav as shown below SET UNIT uR hr uSv hr cpm User can select any one of the four units as required by his plant facilitv However by default uR hr unit is set at factory Selection is by orY keys The next menu option that will appear on selection of PROG key after this above function set is DEVICE ADDRESS Default setting is uR hr 16 5 11 5 12 5 13 5 14 DEVICE ADDRESS This is a three character numerical value This is RS485 address of the instrument limits 0 255 Default settings is 000 DEVICE ADDRESS XXX User can se
9. for fixing the detector assembiv O o op A separate mounting bracket for detector housing is provided Provision to connect the detector with short cable also is available 4 Q Monitor Enclosure a Vapour tight rugged amp elegant b The door is provided with lock and key arrangement c The enclosure qualify minimum industrial protection Class IP 54 d Decorative with visual aesthetics prominent alarm display and good readability Mounting Detector housing is mounted using clamps on top of the monitor The monitor is wall mountable type Brackets for the monitor amp detector housing are supplied along with the equipment Remote External Console a 4 20 mA linear proportional to full scale display output Current output is able to drive load of 600 ohms Output circuitry shall be able to drive 200 mtrs of twisted pair of wires b Two sets of potential free contacts of Alarm relay Change over Contact rating 3 Amp at 250 VAC The relay is energized on normal condition and de energised under alarm condition c Remote alarm acknowledgement and reset signals for the field instruments Normally open contact d Indication of instrument fault condition detector EHT and LV supplies failure over range amp overflow conditions by up scale 4 20 mA 22 5 mA e All these signals are terminated on a 17 pin socket Allied Connectors The corresponding mating plug with 5 mtr cable is supplied with the moni
10. reports to micro controller under program control to indicate HV amp LV failures if any to the user User interface to GA727 is through keypad command buttons EHT PROG INC DEC ACK amp RESET These keys enable the user to configure amp select various programmable options such as alarm set point unit of measurement baud rate for communication calibration factor amp many more such functions etc EEPROM serves as a memory device to store all the configured parameters including instrument ID etc There are two visual displays provided a 16x2 LCD display amp b 6 digit 7 segment LED display driven by multiplexed display driver LCD display indicates all programmable functions amp their values while programming amp it also indicates dose rate in acquisition mode normal situation 1 2 LED display indicates dose rate in the selected unit such as mR hr or uSv hr or cps or cpm The other interfaces to micro controller include a Buzzer driver circuit along with buzzer for audio alarm which produces 90 db output at 1 meter distance 11 b c Visual alarms ACTIVE amp NORMAL cluster LED array GREEN amp RED with their driver circuit to indicate alarm amp normal condition There are unit indication LEDs to show up unit selected out of four options i e mR hr uSv hr or cps or cpm 14 bit precision DAC converts doserate into 0 5V signals This in turn is fed to a voltage to current conv
11. time e Without AMC prompt service calls are not guaranteed e If some critical components become obsolete then Nucleonix systems may request you to upgrade the product with new model or new electronics which may be expensive if you are not under AMC Training on maintenance servicing e To a limited extent we offer training on maintenance repairs at our works to customers on chargeable basis Details can be obtained from our customer support division by customers who may require such services 23
12. to bring back the unit into normal mode once the dose rate falls below the the menu i e given below RESET MODE alarm set point In auto mode once the dose rate falls below the alarm set point the unit automaticallv returns to normal mode and the alarm condition is turned off AUTO MANU option can be selected by or keys Default setting is Manual Once RESET MODE option is selected user can now press PROG button to go to next menu option i e Audio Status AUDIO STATUS There are FOUR options for the user and any one of the options can be selected byA or Wkeys D TONE TONE 2 TONE 1 OFF These four options include dual tone Tone2 Tone1 amp off mode Once this option is selected then press PROG key to go to next menu option BAUD RATE Default setting is D TONE 15 5 7 5 8 5 9 5 10 BAUD RATE Baud rate is to be selected for data communication in a networked environment for RS485 communication There are two options as indicated in LCD display BAUD RATE 9600 19200 One can select any of the two options for baud rate by using by A or keys Having done that user can go to next option by pressing PROG key The next option that appears in LCD display is hardware check Default setting is 9600 HARDWARE CHECK Hardware check can be performed by A or Y keys HW CHK This checks LV supplies amp EHT If these are found to be alright display prompts with an indication
13. ED display with power on condition is given in the following table When we switch ON the unit the LCD display will show up LCD display GATE for 1 sec MONITOR then NUCLEONIX for another 1 sec SYSTEMS Followed by this unit goes into acquisition mode and displays the following on 1 tc 1 2 LED display XXXX And 16x2 LCD display XXXX uR h A H r Character A blinks indicating that dose rate acquisition is ON amp uR hr unit is default unit stored 14 5 3 5 4 5 5 5 6 ENTER PASSWORD Now to program amp configure the unit for desired functions or to change preset values user has to go through PROG button key Different menus will appear as follows On pressing PROG key first time unit will display menu as follows prompting the user to enter factory set four digit PASSWORD ENTER ik PASSWORD XXXX To enter the password use A or keys If the password entered is correct then it will go to next option of the menu as given below amp facilitates the user to enter ALARM SET POINT ALARM SET POINT GA727 will show the current default alarm set value of 50 uR hr If user wants he can change to another value by A or keys ALARM SET POINT XXXXX Once alarm set point is programmed user can Press PROG kev once again to go to next option in RESET AUTO MANU MODE RESET option user can either set it as AUTO or MANU manual In manual reset user has to press the RESET button
14. INSTRUCTION MANUAL GATE MONITOR GATE MONITOR GA 727 Sree OOGENAT lt MODEL NO GA727 NUCLEONIX SYSTEMS PRIVATE LIMITED Plot No 162 A amp B Phase Il I D A Cherlapally Hyderabad 500 051 Ph 91 040 27263701 Fax 27262146 e mail info nucleonix com File Name GA727 Man Date 20 08 2013 CONTENTS CHAPTER No Title of the contents Page No Unpacking CHAPTER Introduction 01 02 CHAPTER II Technical Specifications 03 06 CHAPTER III Front panel and Side panel controls indications 07 10 CHAPTER IV Block diagram amp Description 11 13 CHAPTER V Operating Instructions 14 19 CHAPTER IV Availing services for Equipment Maintenance calibration and warranty clause 20 23 UNPACKING The Gate Monitor Type GA727 has been thoroughly tested and is dispatched in ready to install amp operate condition However on unpacking and prior to operation it is advisable to check visually and make sure that there is no visible damage caused in transit Also checkup the items instrument accessories cables etc physically by verifying with the packing list contents for correct types amp quantities Any discrepancy if found may please be communicated by email to Head Customer support division Typical packed carton may contain a Electronic unit GA727 b Wall mounting bracket or floor mounting stand c Wall mounting clamp for external detector probe d External detector probe e A C mains co
15. ON SERVICES FOR FOREIGN CUSTOMERS Foreign customers can calibrate Nucleonix make Radiation monitors equipments in their country at any of their accredited Radiation calibration labs Nucleonix systems will be happy to provide any help and guidance if needed for calibration Alternatively if you send the equipment here to India we can also provide calibration services Calibration Standards Lab amp Facility We have two calibration labs i Low Level Calibration Lab li High Dose Rate Calibration lab Low Level Calibration Lab This has a Cs 137 165 mCi standard Gamma Survey Instruments Calibrator from Amersham This calibration service has NIST Traceability standard Calibration of all portable radiation monitors survey meters contamination monitors Area monitors etc is carried out in this lab upto 1 R hr max dose rates 22 6 5 Gamma Survey instruments calibrator has Cs 137 source 161 5 mCi as on 05 Aug 2002 lt is basically a gamma survey instruments calibrator procured from AEA Technologies UK USA Has NIST traceability accuracy within _ 7 High Dose Rate Calibration Lab This lab has a 8 Ci Co 60 standard housed in a CRC 2 camera operated remotely viewed through CCTV arrangement High dose rate survey meters High level Area monitors etc are calibrated in this lab This CRC 2 camera is housed in a separate concrete building All the radiation monitors manufactured by Nucleonix Systems are authentically calibrated
16. after warranty any Freight charges amp customs clearance charges are to be borne by customers both ways If it is a manufacturing defect then Nucleonix system will bear the replacement cost of sub system unit However any Freight charges amp customs clearance charges in their country are to be borne by customer After warranty services will be similar to that of services during warranty However customer will have to pay for cost of parts replaced freight charges both ways amp customs clearance 21 6 4 6 5 charges in both the countries Nucleonix systems plans to introduce audio visuals on web or on CDs to facilitate product demonstration installation amp minor maintenance very soon HOW TO AVAIL CALIBRATION SERVICES FOR INDIAN CUSTOMERS Nucleonix Systems offers radiation calibration services to its customers Calibration services are provided for Nucleonix Systems manufactured products only in general as a company policy How to avail calibration services It is best advised that each of the Radiation monitors including Area monitors are calibrated once in a year When you want to send your Radiation monitor Area monitor Contamination monitor for calibration to our works You may send the equipment for calibration by following the steps given below 1 Our standard calibration charges per equipment All types of Radiation monitors including portable survey meters contamination monitors amp Area Gamma Monitors
17. an e mail e For all equipments costing less than 6 0 lakhs one year warrantee amp free service is offered when the equipments are sent to our works only For larger systems such as installed systems networked systems specialized systems costing more than 6 0 lakhs during one year warrantee free service is offered at site Field service Engineer will be deputed subject to warrantee terms amp conditions e This does not include personal computer related problems for which local computer service provider of the PC vendor is to be contacted Also for software related problems online support will be provided Software support doesn t include cleaning of virus problems etc e When the equipments are sent to our works for warrantee services they are to be properly packed with adequate cushion to prevent any transportation damages Nucleonix Systems is not responsible for damages or loss during transportation e Packing Freight charge is to be borne by customer when he sends the equipment to our works However when we return after servicing packing will be Nucleonix responsibility amp Freight charges will be to your account Only services are free e Please indicate in your correspondence equipment model amp serial number e All the equipments are to be sent to our works only on door delivery basis e For Door Delivery Transportation contact XPS GATI cargo in your city town or a reliable courier service to pick the consignment from your p
18. configurator PC Front panel keypad is provided with DIP switch de activation Alarm Indication a Red LED flashing large area window display b Loud alternating audio tone Dual frequency tone Alarm annunciation scheme As tabulated below Alarm annunciation scheme As tabulated below Parameter Status Visual indication Red LED Audio Normal OFF OFF Abnormal Flashing ON On Acknowledgement Steadv Red OFF Back to Normal Steadv Red OFF Reset on abnormal Steadv Red OFF Reset on normal OFF OFF Instrument Controls a Acknowledgement switch for muting audio b Reset switch for resetting the Alarm indication and alarm relav c Power ON OFF switch This is inside the cabinet with Power ON indication Instrument Fault indication EHT failure Visual alarm with flashing red LED indication amp Eht message on display Detector failure Visual alarm with flashing red LED amp d FL message on display Microprocessor microcontroller failure Visual alarm with flashing green lamp Fault indications shall be cleared automaticallv if normal status is resumed Detector Housing The detector is located external to the Monitor It is housed in a suitable air tight SS shell with built in pre amplifier to drive upto 50 mtrs long cable The instrument is provided with 10 mtr cable between detector and the monitor The detector housing qualifv minimum industrial protection Class IP 54 The monitor have clamp on the top
19. ert chip to obtain current loop output 4 to 20mA from the Gate Monitor A relay driver with relay PCB provides two sets of change over contacts for external use This relay is in energized condition in NORMAL condition of Gate monitor amp in de energized state in ACTIVE condition For data transmission from Gate monitor to SCADA an RS485 interface has been built using TXD amp RXD pins of micro controller This facilitates area gamma monitors RS485 networking for data communication These RS485 signals have been brought out on a pair of 9 pin D connectors male female for RS485 daisv chain connection of devices Additionallv these signals are made available on 17 pin also Most of the interfacing devices or circuits or peripheral chips are connected to micro controller through I2C bus or ports or I O expanders etc for interfacing 12 en ea SW uid Z4 puu j q uid 6 sjoejU09 0 9 Z ae nie all ase peog Aejay quid 6 S8rSu Ajddng J9MO4 1ojdno99 o1dO jasey oSI AS AS A8I AS A 149 doo 1 3 JOV wey yua ung JOBJJ AS JOAUG ABJOH FA Mq bl ii AOS 0 SQ31 UOMBJIPUJ rd Hun Bueti uka i sda qa IEWJON SMJ9V LSA68d swuejy JENSIA i is swiejv olpnv NOW jozzna J9jUNOD ILL EJAsIp jJu u6 s J8BAUQ KAejdsiq p x ldy ny L WDIP 9 KAejdsiq G91 2x91 ped y peog ulen JI IP 9 0 SgrStu NF WOusSs aqold 10 99 9Q yri 0S B A009 AH A00S Z08
20. lace For their nearest local address amp phone no s look into their websites Transit insurance if the customer feels is necessary it is to be covered e Nucleonix Systems will not receive the equipments sent by other modes of transportation such as Rail Road e After servicing equipments will be sent back by same mode of transport such as XPS GATI COURIER RPP 20 b 6 3 a All types of Radiation detectors glass ware PMTs etc which are fragile are not covered in warrantee if the failure is due to physical damage external or internal due to shock dropping miss handling etc If the failure is due to a natural fault then only it is covered under warrantee for a limited period of three months However complete electronics is covered for 1 year warrantee You can also send the equipment personally to our works for repairs either during or after warrantee after fixing up with our service dept Customer Support Division If possible we may repair on same day or your person can stay for a day or two amp get it repaired amp or calibrated After warrantee Services On expiry of 1vr warrantee if you like to send the equipment low cost less than 6 0 lakhs for repairs to our works you may please observe the following procedure send an e mail with details mentioning that you agree to pay service charges which includes Basic service charges per unit module in the range of Rs 2500 to Rs 10 000 depending on the sophisticatio
21. lect desired three digit address ID of the instrument Use or W keys to load this value Having completed this task press PROG button for the next menu i e AUTO ACK AUTO ACKNOWLEDGE This is a selection option for alarm Ack AUTO ACK ON OFF 5 min By A or one can select or toggle this option If it is selected as ON after 5 minutes automatically alarm is acknowledged amp audio alarm goes MUTE However visual alarm remains active Followed by this the next menu option is MAX SCALE which is prompted on pressing PROG button Default setting is OFF MAX SCALE Depending on the unit chosen i e uR hr or uSv hr or cpm the maximum permissible scales are 10000 100 00 amp 50000 respectively User can choose any value upto a max of this upper limit amp a value above the minimum value Any value chosen out of these boundaries will be ignored at the time of saving settings and default values will be loaded In the display chosen unit will appear amp appropriate max value desired can be entered by the user Similar is the case for other units such as uSv hr or com After selection of max scale user can now select PROG button to go to next menu option as follows Default setting is 10000uR hr MAX uR hr 4 20mA XXX XX MIN SCALE MIN uR hr 4 20mMA XXX XX Depending on the scale selected initially appropriate unit i e typical uR hr appears in the display User cannot enter the
22. ma Radiation 1 10000 uR hr 0 01 100 00 uSv hr 0 50000 CPM Range and Unit are configurable High sensitivity energy compensated Halogen quenched G M Tube GM132E or equivalent having a sensitivity of 160 cps mR hr 10 Full scale 400 V to 700 V DC adjustable Typical 500V Auto ranging direct reading 6 digit 7 segment LED display and 16x2 LCD display 6x7 segment display is used for display of doserate information and hardware status information amp 16x2 LCD display is used for visualization of preset alarm and other parameters Senses overload above 200 of fullscale and upto 1 R h amp indicates on displav OL Senses if the radiation field being measured has exceeded the measurement range of the instrument and upto 200 of the instrument and displays OFI 4 to 20 mA with 600 ohm load a Non linearity Max 0 025 of Span b Offset current lo 4mA Max 0 0005 of Span C c Span Error lo 20mA Max 0 005 of Span C First reading on Power ON within 5 secs 30 sec to 0 5 sec automatically varying inversely with the radiation level Update the current reading within 2 sec and return to normal mode 10 through out the range Instrument ON Indication Large Area Green LED Lamp This will indicate the Normal condition also Alarm range 11 9999 uR hr 0 01 99 99 uSv hr 1 50000 CPM The alarm level setting will be carried out through front panel keypad handheld
23. min scale value which is equal or above the max scale value selected Any value not meeting boundary conditions will be ignored while saving the settings amp default value will be loaded Similar if the engineering unit changed then the min amp max scales are tabulated as follows 17 5 15 5 16 5 17 Engineering Unit Max scale 4 20mA Min scale 4 20mA uR hr 10000 00000 uSv hr 100 00 000 00 CPM 50000 00000 Followed by this on pressing PRG button the following menu appears load default settings Note Max amp Min scales are primarily for current loop scaling for control room operation Also in the visual LED display also the same scales are set Any value exceeding this max scale will show as over range as per definition in the LED display However in the lower LCD display it continues to show dose rate as per actual value Default setting is 0000uR hr LOAD DEFAULT SETTINGS In case the user wants to retain default settings he can skip all the previous menus amp select this menu amp chose option by pressing A or Y key for default settings LOAD DEFAULT SETTINGS Followed by this selection amp upon pressing PROG key one would see the menu as given below MODIFY PASSWORD MODIFY PASSWORD YES NO lf user wants to change the pass word he can do so by Aor Wkey Select no option to retain same password Having done that finally we have completed all the PROG button fu
24. n of the unit calibration charges if applicable for your equipment cost of components packing charges Return Freight charges actual Once our customer support department responds amp requests you to despatch the equipment to our works for repairs you may do so by following the steps given below Followed by this you can send the equipment straight away if it is within 5 yrs old If the equipment is beyond 5 yrs old then also you can send it for repairs however only after you receive confirmation from Customer Support Division that it is repairable amp is not an obsolete model If the design is obsolete then customer support division CSD may give you buy back offer to replace with new model or upgrade it with electronic circuit boards amp enclosure For all installed equipments costing above Rs 6 0 lakhs which are larger in size amp for which field servicing only is recommended you can obtain a quotation with relevant details by sending an e mail amp avail the services accordingly For all field servicing jobs since we need to depute engineers it is likely to take time amp also it will cost more which includes Engineer s TA amp DA etc apart from basic service charges cost of spares etc Please note that basic service charges will be different for different products depending upon sophistication Also in some cases it may not be possible to fix up the problems in the field itself in such cases we may advise you
25. nctions amp are ready to save settings The next menu that appear as given below SAVE SETTINGS SAVE SETTINGS Use Aor Y keys to save all the above settings These are permanently stored in the EEPROM and will be recalled at next powering on of the instrument Having configured for required settings unit is now ready for operation once settings are saved unit automatically gets into operation mode and starts acquiring dose rates and indicates in the display visually 18 5 18 DETAILS OF DIP SWITCH SETTINGS Bv default all FOUR DIP switch settings are kept in ON position as indicated below in the diagram Out off these FOUR switches only Switch 1 amp 2 is have been used Switches 3 amp 4 are not wired up DIP switch 1 is used for enabling keypad command buttons EHT PROG A amp Y as indicated below and by default it is in enabled condition For disabling keypad DIP switch 1 is to be kept in OFF position Diagrammatically it is indicated below DIP switch 2 is used for disabling ACK amp RESET key command buttons By default it is in ON position For disabling it is kept in OFF position as indicated below 19 CHAPTER VI AVAILING OF MAINTENANCE CALIBRATION SERVICES AND WARRANTY CLAUSE 6 1 6 2 a with in India GENERAL As per the warranty clause of the company we provide one year warranty during which period we provide free service at our works Hence in case of any mal function in our ins
26. nd the instrument data like Instrument ID Instrument type Input range Display range alarm settings alarm status current reading diagnostic status of EHT GM tube etc to the Host PC on demand The firmware is able to receive commands from Host PC and carry out the setting of different parameters like Instrument ID Instrument type Input range Display range alarm settings Ack Reset EHT setting instrument address etc The configuration settings is password protected and the password is user defined The detailed specifications for the interface are as follows Tvpe RS 485 Multidrop Serial Communication Port Half Duplex Bi directional communication Character Format ASCII Protocol MODBUS RTU Bit Rate User configurable to 9600 or 19200 bits per sec Address User configurable from 0 to 255 Connector 9 pin D type connectors 2 connectors connected in parallel for daisy chaining a number of instruments The mating connectors with cover shall be supplied Self Diagnostics The monitor has built in self diagnostics On being powered it will perform tests to ensure that all components and sub systems are functioning properly It will check for the Power supplies High Voltage Supply Detector and Counting electronics Input Power 230VAC 10 50Hz single phase supply Power ON OFF switch is provided with a neon indicator Spike suppressor and line filter are also provided Environment The unit enclosure and detec
27. produces audio visual alarms if the dose rate exceeds preset value By default the unit is set to be in mR hr 8 the range is 0 10000 uR hr This Gate Monitor GA727 unit will be useful for monitoring Low Gamma dose rate levels in working areas of Radio Isotope Laboratories Radiology departments Medical amp Industrial Radiological installations apart from its usefulness in Atomic Power Stations radiochemical plants waste immobilization plants etc With power ON initialization of hardware peripheral devices seven segment LED display 16x2 LCD display timers counter etc takes place Followed by this dose rate calculation takes place in the selected unit such as mR hr Additionally hardware amp fault diagnostic check will be carried out Display updating will take place every 4 sec Time constant TC for doserate will be computed depending upon the detector output count rate Gate monitor GA727 indicates dose rate digitally on 6x7 segment LED display as well a 16x2 LCD display There are two visual annunciator lamp windows GREEN amp RED for NORMAL amp ACTIVE conditions respectively The ACTIVE window flashes once the dose rate alarm occurs and in normal condition the NORMAL window glows The user interface is through a front panel keypad comprising of EHT PROG INC DEC ACK amp RESET keys PROG key shows up different menu options on successive operation INC DEC are used to scroll select various PROG options ACK and
28. rd f 10 meter multi core cable to connect detector probe to main GA unit Gate monitor GA727 A C Mains cord Detector wall Electronic Unit wall mounting Connecting cable between Floor mounting stand Mounting clamp bracket Electronic Unit and ext For Electronic Unit detector probe If any damage to the instrument is observed do not switch ON the unit and report the matter immediately to Head CSD Customer Support Division Nucleonix Svstems Private Limited Plot No 162 A amp B PHASE II D A Cherlapallv Hyderabad 500 051 Ph 91 040 27263701 30918055 FAX 91 040 27262146 e mail info nucleonix net In all correspondence regarding the instrument please mention the tvpe serial number of the unit date of supplv etc of the unit CHAPTER INTRODUCTION Gate monitor Type GA727 manufactured amp supplied by NUCLEONIX SYSTEMS is designed primarily to monitor low levels of gamma radiation It uses state of art electronic devices latest including microcontroller with associated peripheral devices and other discrete ICs amp components Use of these devices makes it compact amp highly reliable Powerful embedded code adds up and enhances its performance and gives extra advantage from the angle of fault diagnostics programmable features amp measurement of dose rate amp data communication under networked environment This unit is primarily designed to indicate dose rates in the measuring unit selected amp
29. te falls below the preset alarm level audio amp visual alarms reset automatically In manual reset mode alarm active condition is reset only when the user presses Reset button ACK key This key is used to ACK the alarm by the user this function is explained in detail under operating instructions SIDE PANEL AND CHASSIS MOUNTED CONTROLS ON OFF SWITCH This is a toggle switch mounted inside the unit on the chassis which is used to power ON the unit When the switch is put ON the AC mains power is made available to the unit AUDIO BUZZER There is an audio buzzer provided on left side of the main Electronic unit Under alarm condition this unit produces loud beeps with dual frequency tone The audio alarm can be turned off muted by pressing ACK key It can be made OFF permanently through the AUDIO ALARM ON OFF option in PROG menu FUSE HOLDER This is provided on right side control panel Fuse protection provided has a 750 mA fuse SIDE PANEL CONNECTOR DETAILS 3 PIN MS MALE CONNECTOR MAINS This is a 3 pin MS connector male for connecting to the A C power cable to power up the Electronic unit Pin Number Signal 1 Live 2 Neutral 3 Chassis Earth GND 3 4 2 9 PIN D MALE amp FEMALE CONNECTOR RS485 IN 8 RS845 OUT This carries RS485 signals for data communication under RS485 network for SCADA applications Pin Number Signal 1 No Connection 2 RS 485 A 3 RS 485 B
30. to send them to our works For all jobs to be serviced in the field customer is requested to provide adequate details on the nature of problems to enable our engineer to come prepared with adequate spares For any additional information send an e mail to info nucleonix com Atten Customer support division EQUIPMENT REPAIRS SERVICING POLICY FOR EXPORTS Equipments manufactured amp exported are subjected to a well defined quality assurance QA plan amp Factory acceptance tests FAT Nucleonix systems has the following policy to provide maintenance support to overseas customers either directly or through international dealers distributors During amp after warranty For minor problems which can be handled by customers servicing tips have been provided in the user manual servicing manual Also most of the equipments have built in fault diagnostic features which will indicate to the user nature of problem in the equipment Based on the visual indication in the instrument Display user can take corrective action or contact Nucleonix systems by email for help Nucleonix systems will guide in localizing the defective part module or sub system by interacting with the customer if required Skype will be used for communication During warranty free replacement of sub system or board PCB will be done However customer has to send defective sub system back to Nucleonix system with in 15 days on arranging replacement During amp
31. tor f RJ45 connector for Ethernet port g RS 485 serial port optional This is in parallel with D type connectors Computer Interface The monitor shall have a Ethernet 10 100 Mbps port for interfacing with a remote IBM PC compatible computer The features supported by Ethernet port are given below e The PC and the monitor shall operate in a host slave configuration and the software protocol will be MODBUS TCP e The PC as the host shall give commands and send queries The monitor will carry out various functions in response to the queries e The firmware of the monitor shall be able to send the instrument data like instrument ID instrument type input range display range alarm settings alarm status current reading diagnostic status of EHT GM tube etc to the Host PC on demand e The firmware shall be able to receive commands from Host PC and carry out the setting of different parameters like instrument ID instrument type input range display range alarm settings Ack Reset instrument address etc RS485 Optional The monitor have a RS 485 Serial Communication port for interfacing with a IBM PC compatible computer The PC and the monitor operate in a host slave configuration in a multi drop network through this interface The PC as the host give commands and send queries The monitor carry out the various functions as per the required information in response to the queries 5 The firmware of the monitor is able to se
32. tor assembly comply with IP 54 Electronic units withstand cumulative radiation dose of 10000 Rad 30 years of operation Mechanical Enclosure Size 357H x 410W x 140D Weight 8 5kg approx Instrument Trolley offered separately A suitable stand for fixing area monitor will be supplied optionally This will be made of MS and will be provided with brackets for mounting the instrument This stand is manufactured to qualify Seismic test IEEE 344 OPTIONS 1 16 bit resolution current loop 4 20mA instead of 14 bit resolution 2 Log scale O P for 4 20mA instead of 4 20 linear O P 3 3 5 QVGA color TFT display in lieu of 7 segment LED amp 16x2 LCD display 4 RS485 serial interface 3 1 3 1 1 3 1 4 3 2 3 2 1 CHAPTER III FRONT amp SIDE PANEL CONTROLS INDICATIONS FRONT PANEL INDICATIONS NORMAL amp ACTIVE LAMPS The NORMAL lamp GREEN glows during acquisition mode until the dose rate exceeds alarm preset value Once dose rate exceeds alarm preset value then the NORMAL lamp turns OFF and the ACTIVE lamp RED blinks Once the dose rate falls below the preset level then i if Reset mode is AUTO then it comes back to Normal mode ii if RESET mode is MANUAL then it comes back to NORMAL mode only after RESET key is pressed DOSERATE 6x7 segment display This gives the visual display of the current dose rate in acquisition mode in the unit selected By default it shows in uR hr unit STATUS
33. truments you are requested to send the unit back to our works by RPP COURIER SPEED POST PARCEL GATI XPS door delivery We shall arrange immediate rectification replacement within two weeks from the date of receipt of the equipment at our place Please note that the equipment will be serviced at our works only The equipment is to be sent to The Servicing Department NUCLEONIX SYSTEMS PRIVATE LIMITED Plot No 162 A 8 B PHASE Il I D A Cherlapally Hyderabad 500 051Ph 040 27263701 329145448 32918055 E mail info nucleonix com www nucleonix com For all the Radiation monitoring equipment detectors built in or external probes will not have one year warranty but only inspection warranty at the time of supply is provided Since detectors will may have fragile glass construction we do not provide warranty In case of failure of these components Nucleonix will supply detector replacement at cost cost price Note In respect of all types of portable radiation monitors it may be necessary to checkup and recalibrate the equipment once a year at our works EQUIPMENT REPAIRS SERVICING POLICY WITH IN INDIA During Warrantee The following procedure is to be followed by the customers with in India for availing services repairing facility during warrantee period e Equipments are to be sent to our works for availing free repair services during warrantee after the customer receives approval from the customer support division by sending
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