6012 MAN VS2.XX - Far West Technology, Inc.
Contents
1. MINUS PLUS WALL TRANSFORMER CONNECTIONS TO DISPLAY AND POWER Figure 1 CONNECTIONS TO DISPLAY MODEL 6012 INSTRUCTION MANUAL PAGE 4 Digital Display Controller Health Physics Instruments DISPLAY CONNECTIONS DESCRIPTION WIRE COLOR To Detector 12 VDC 12VDC Input External Power Diode isolated Power Diode isolated mamme 0 4 wasim ve teats 7 WzVBCOww Re Teaco Hs Yatra ase ReayO External Alarm center pole eo man S pewon i L Hs emma He emma 1 14 88 me m me fee CONTACT CLOSURE FOR EXTERNAL ALARM The contact closure from the internal relay is on pins 10 11 and 12 Normally an external interlock system would be connected between pin 11 and 12 This alarm operates in the fail safe mode If you were to remove power to the display the relay would open the contacts between pin 11 and 12 Contacts are rated 0 5 A 115 VAC 1 A 24 VDC resistive REMOTE RELAY DRIVER If you do not want to use the internal relay you can install an external 12 volt relay between pin 13 and 14 Remove the internal relay by unplugging it before connecting an external relay The external relay should not draw more than 300 mA EXTRA DRIVERS Extra drivers2. LITE 107 gt PXI exo eXO a 48 md I 0992 101 o 692 5 m LG n ae 135 gm FOG zal ol ols son wpe e 2 aan PM 5 1060 19 ES 8 t Z 5 9 2 5 B sj T 5 o Sin fet S L0pEW1 9 Vi tdl 14 2 amp 557 4 2 aa 8 T Sild 5 2 001 gt F s j 99 92152 x x T T h 1 20 Zr 69 5 GF jn 17128 IC 9 5 anzz 80 pino anzz 29 5 3 E 100215 gt n NA a 3 Bld E ein 5 ord ML ow 178 2 T AA reel Hazzna 3 F T 5 ora t zz 8d F 841 60 EE T T 009 5 YS I D mou ES 25 95 3 F gt 3 gt 2 5 i di 4 21 58 x 36 5 t x _ Em 8 T nag SH 210 25 y s AT y 9 vied gt 0 89 5 2 NOSE erm D 15189 anzz 10024 anzz 53 1081 4 Hn angel 1 gt n 5 00 1
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4. 194 C2 000010 67 43 010000 31 83 100000 195 3 0000 DECIMAL HEX BINARY 68 44 01000100 32 84 10000100 196 C4 000100 CONVERSION TABLE 69 45 0100010 33 85 1000010 197 C5 00010 DEC HEX BINARY 70 46 01000110 34 86 10000110 198 C6 000110 0 00 00000000 71 47 010001 35 87 100001 199 C7 0001 1 01 0000000 72 48 01001000 36 88 10001000 200 001000 2 02 00000010 73 49 0100100 37 89 1000100 201 C9 00100 3 03 000000 74 4A 01001010 38 8A 10001010 202 CA 001010 4 04 00000100 75 4B 010010 39 8B 100010 203 CB 0010 5 05 0000010 76 4C 01001100 40 8C 10001100 204 CC 001100 6 06 00000110 77 4D 0100110 41 8D 1000110 205 CD 00110 7 07 00000 78 4E 01001110 42 8E 10001110 206 CE 001110 8 08 00001000 79 4F 010011 43 8F 100011 207 CF 0011 9 09 0000100 80 50 01010000 44 90 10010000 208 DO 010000 0 0A 00001010 81 51 0101000 45 91 1001000 209 D1 01000 1 0B 000010 82 52 01010010 46 92 10010010 210 D2 010010 2 0C 00001100 83 53 010100 47 93 100100 211 D3 0100 3 0D 0000110 84 54 01010100 48 94 10010100 212 04 010100 4 00001110 85 55 0101010 49 95 1001010 213 D5 01010 5 000011 86 56 01010110 50 96 10010110 214 D6 010110 6 10 00010000 87 57 010101 51 97 100101 215 D7 0101 7 11 0001000 88 58 01011000 52 98 10011000 216 D8 011000 8 12 00010010 89 59 0101100 53 99 1001100 217 D9 01100 9 13 000100 90 5A 01011010 54 9A 10011010 218 DA 011010 20 14 00010100 91 5B 010110 55 9B 100110 219 DB 0110 21 15 0001010 92 5C 01011100 56 9C 10011100 220 DC 011100 22 16 00010110 93 5D
5. EVO Min Min EVO 8 bit 1 4W CF 1 4W CF 1 4W CF 2 x 16 Alphanumeric 8 bit Dual D type 32K x 8 Darlington 8 bit RS485 5 Volt 5 Volt HC 49 7 3728 MHz 4 x 6 32 x 6 32 6 Int Star 4 x 5 4 40 4 Int Star 6 32 X 1 6 32 X 3 8 24 x 3 8 Lexan 6 Nylon 6 32 x 3 8 Buzzer Panasonic Calpacitor Mono Calpacitor Mono Capacitor Electro Capacitor Electro Capacitor Electro Capacitor Electro Capacitor Electro Capacitor Tantalum Capacitor Tantalum Capacitor Tantalum Capacitor Mono Capacitor Mono Capacitor Mono Capacitor Mono LED LED LED DIODE DIODE Relay Dip Header Terminal Plug Terminal Plug Terminal Trimmer Resistor Network Resistor Resistor Resistor Switch Pushbutton Switch Pushbutton Switch Pushbutton Switch Pushbutton Latch EEPROM Supervisor Micro LCD Display Microprocessor Flip Flop EPROM QUAD NAND RS232 Driver Drivers Shift Register Driver Rcvr Voltage Regulator Voltage Inverter Crystal BASE COVER COVER SHIELD Nylon Spacer Hex Spacer Screw Pan X Locwasher Spacer Nylon Screw Pan X Lockwasher Spacer Hex Screw FH X Thumbscrew Wall Bracket Window Washser Screw Omron OST OST OST Panasonic Panasonic Panasonic Panasonic Microchip Maxim Signetics Maxim National National Harris CTS HPI HPI HPI Pan X VARITRONIX 6012 001 Digikey 60 Digikey 60 Digikey 60 D
6. has different settings and each alarm is designed to look at a different part of the level Each alarm may be individually turned off if it is not needed Alarm 1 2 and 3 all have several settings associated with them The different parts of the settings are 1 Trip set This is the alarm level This setting is a 4 digit number that is compared with the level in counts interval from the detector 2 Interval This is the number of seconds that the alarm uses for its time base It counts the counts from the detector for that time and compares it to the trip set 3 Delay This is the number of intervals that the alarm must be consecutively activated to actually trip the alarms 4 Pause This is the number of seconds after the level has decreased below the trip set that the alarm will remain activated It is used to keep the alarm on longer than one interval It is usually set around 10 seconds ALARM ACTIVATION Alarms 1 2 and 3 work in the following manner When the level rises above the tripset the delay counts down every interval period from its preprogrammed level When it reaches zero it turns the alarm on Until the alarms are activated if the level decreases below the tripset the delay will reset to its preprogrammed level This helps to keep noise from tripping the alarm The pause works like the delay in that it too counts down every second from its preprogrammed level once the level drops below the tripset When it reaches zero the a
7. instrument should be operational 24 hours a day The only way to turn it on and off is to plug and unplug the wall transformer After the instrument is installed it may be turned on by plugging in the wall transformer See section X Maintenance testing display for testing alarms MODEL 6012 INSTRUCTION MANUAL PAGE 3 Digital Display Controller Health Physics Instruments INTERFERENCE Interference can cause annoying false alarms The most likely cause of interference is from noisy AC switches and lamp dimmers Plugging the 6012 into a line filter or the offending product into a line filter can help to eliminate the interference 11213145 6 7 9 1314 1516 1718 19 20 nininininininininininininininininin n n 22000000000000000000 0 5 ES E z gooBgos t220852529290 lt a ConTRoL PANEL 9 9 GO 88 52845501 E 5 HEE 52332 2 Saag E gue ug Z jk 8 5 e au E 35 lt E CONNECTIONS TO TERMINALS DISPLAY CIRCUIT BOARD n one es 1 307 cto ce 05 RON 1234 5 6 78 9 101152 13 1415 1617 1819120 Ololo ninin nininin nin nin ninin n nin n Oo 2
8. this page and use it to figure out your changes The setup mode is different from the normal operation of the instrument To enter into the setup mode first access the control panel on the display by removing the bottom half of the front panel At any time push and hold down the left hand button on the control panel The display will change to the setup mode in about 1 second and show the first adjustment Release the button as soon as the setup menu appears The buttons on the control panel will do the following MODE left hand button will bring up the next item to adjust Repeatedly pushing the mode button will cycle through all the adjustments SET center button will move the arrow on the bottom line from one digit to the next Every time it is pushed the arrow will move to the next digit When it gets to the last digit it will jump to the first digit UP right hand button will increment the digit that the arrow points to Every time the button is pushed the digit will increase It only takes a few seconds of playing with the buttons to understand how they function Some adjustments have 3 digits and some have 4 All settings are decimal The adjustments with 3 digits have a maximum setting of 255 If they are set above 255 they will actually be set to 255 The bottom line of the display reminds you that they have a maximum value of 255 The four digit adjustments have no restrictions they can be adjusted from 00 00 to 99 99 Repeate
9. to 0 then the alarm will be shown by three dashes in place of the group As an example assume for alarm 3 the delay is set to 5 and the pause is set to 8 Normally with no trip it would read 05 The indicates it is not tripped and the 05 is the delay If the level was brought higher than the tripset then the delay would start to count down every interval period until it reached zero This shows the delay period If the level were to decrease below the trip set during the time it was counting down then the delay would revert back to its preprogrammed level which is 5 When the delay reaches zero the indicator will change from a to a T to indicate it has been tripped and the alarms will be set The display will then show T8 and will continue to show T8 until the level is brought down below the tripset When the level is brought below the tripset the pause will start counting down decreasing by 1 every second When it reaches zero the T will change back to and the alarms will be set to the no alarm condition VI SETUP MODEL 6012 INSTRUCTION MANUAL PAGE 8 Digital Display Controller Health Physics Instruments The instrument has been setup with its preset values These values are programmed into the EEPROM changeable permanent memory They can be changed by the user This section shows how to change the presets APPENDIX contains blank forms for recording your settings We recommend that you copy
10. 0101110 57 90 1001110 221 DD 01110 23 17 000101 94 5E 01011110 58 9E 10011110 222 DE 011110 24 18 00011000 95 5F 010111 59 9F 100111 223 DF 0111 25 19 0001100 96 60 01100000 60 AO 10100000 224 EO 00000 26 1A 00011010 97 61 0110000 61 Al 1010000 225 El 0000 27 1B 000110 98 62 01100010 62 A2 10100010 226 E2 00010 28 1C 00011100 99 63 011000 63 A3 101000 227 E3 000 39 1D 0001110 00 64 01100100 64 A4 10100100 228 E4 00100 30 1E 00011110 01 65 0110010 65 A5 1010010 229 E5 0010 31 1F 000111 02 66 01100110 66 A6 10100110 230 E6 00110 32 20 00100000 03 67 01100 67 A7 101001 231 E7 001 33 21 0010000 04 68 01101000 68 A8 10101000 232 E8 01000 34 22 00100010 05 69 0110100 69 A9 1010100 233 E9 0100 35 23 001000 06 6A 01101010 70 AA 10101010 234 EA 01010 36 24 00100100 07 6B 011010 71 AB 101010 235 EB 010 37 25 0010010 08 6C 01101100 72 AC 10101100 236 EC 01100 38 26 00100110 09 6D 0110110 73 AD 1010110 237 ED 0110 39 27 001001 0 6E 01101110 74 AE 10101110 238 EE 01110 40 28 00101000 1 6F 011011 75 AF 101011 239 EF 011 41 29 0010100 2 70 0 0000 76 BO 10110000 240 FO 0000 42 2A 00101010 SALE 40 000 77 B1 1011000 241 F1 000 43 2B 001010 4 72 0 0010 78 B2 10110010 242 F2 0010 44 2C 00101100 5119 10 00 79 B3 101100 243 F3 00 45 2D 0010110 6 74 0 0100 80 B4 10110100 244 F4 0100 46 2E 00101110 010 81 5 1011010 245 F5 010 47 2F 001011 8 76 0 0110 82 B6 10110110 246 F6 0110 48 30 00110000 9 01 83 B7 101101 247 F7 01 49 31 0011000 20 78 0 1000 84 B8
11. 10111000 248 F8 1000 50 32 00110010 21 19 0 100 85 B9 1011100 249 F9 100 51 33 001100 22 7A 0 1010 86 BA 10111010 250 FA 1010 52 34 00110100 23 7B 0 10 87 BB 101110 251 FB 10 53 35 0011010 24 7C 0 1100 88 BC 10111100 252 FC 1100 54 36 00110110 25 WD 0 110 89 BD 1011110 253 FD 110 55 37 001104 26 7E 0 1110 90 BE 10111110 254 FE 1110 56 38 00111000 27 0 91 101111 255 11 57 39 0011100 58 00111010 59 3B 001110 60 3C 00111100 61 3D 0011110 62 3E 00111110 63 3F 001111 MODEL 6012 INSTRUCTION MANUAL Digital Display Controller DISPLAY PARTS LIST DESIGN QUAN PART NO DESCRIPTION PAGE 16 Health Physics Instruments SUPPLIER DRAWING 4 001 002 003 004 005 006 007 008 009 010 011 014 015 016 X1 M01 M02 M03 M04 M05 M06 M07 M08 M09 M10 M11 M12 M13 M14 M15 M16 M17 RS EFB CB37C11 1N4004 1N4004 G2E 184PM US DC12 EDSTLZ950 20 EDZ950 18 EDZ950 2 74HC573 27LC02 MAX813LCPA MDLS 16265 G LVLED04 P80C32GBPN 4013B 27C256 74 00 MAX232CPE DS2003N 4094B DS75176BN 7805 ICL7660CSPA 6012 002 6012 003 6012 004 2030 004 10 VDC 10 VDC 10 VDC 22 uF 10 VDC 100 uF 25 VDC 10 uF 10 VDC 10 uF 10 VDC 10 uF 10 VDC 0 1 uF uF uF uF RED Tl 9 YELLOW 1 GREEN Tl PRR 12V SPDT 20 Position 18 Position 2 Position 10K 1 Turn 10K x 9 470 5 470 5 470 5 Min Min
12. ANUAL PAGE 11 Digital Display Controller Health Physics Instruments FAIL TIME If the display does not receive a count from the detector it will show a failure in the display The fail time is the number of seconds after the last count before the instrument will show FAILURE in the display If the fail time is set to 60 seconds it will take 60 seconds after the detector fails before the instrument will display FAILURE The factory setting is 255 which is the maximum value The detector should send a count out at least every 2 seconds if it is operating normally Zero Offset The zero offset is for detectors that require it The 6012 subtracts this value from the reading before it is used to set the alarms or view on the display Set it to the value specified in the manual for the detector The radiation level can be viewed without the zero offset by pushing the up button on the control panel TURNING THE ALARMS OFF Each of the alarms can be turned off To turn off alarm 1 2 or 3 set the tripset to zero You can check if the alarm is turned off reading Viewing Alarms on page 7 VIII RS232 SERIAL OUTPUT Every second the display sends out a packet of data via the RS232 serial output The packet is the data at the time it was sent and should look like 000001 0064 0000 0032 FF 00 The data from left to right is 1 XXXXXX 6 hex digits Counts per second from detector The same value as on the display 2 XXXX 2 hex digits Alarm level for al
13. INSTRUCTION MANUAL MODEL 6012 DIGITAL DISPLAY CONTROLLER July 2003 Version For software V 2 01 Display Health Physics Instruments 330 South Kellogg Ave Suite D Goleta CA 93117 805 964 3615 FAX 805 964 3162 Email info fwt com www fwt com Division of Far West Technology MODEL 6012 INSTRUCTION MANUAL Digital Display Controller TABLE OF CONTENTS OPERA NON sene Ill INSTALLATION INTERFERENCE DISPLAY CONNECTIONS VI VIII VII IX APPENDIX I DISPLAY PARTS LIST CONTACT CLOSURE FOR EXTERNAL ALARM REMOTE RELAY DRIVER EXTRA DRIVERS RS232 485 CONTROL PANEL ener PUSH BUTTON SUMMARY PUSH BUTTON ACTION ALARM ACTIVATION ALARM 1 ALARM 2 ALARM 3 FAIL PRIORITY NO ALARM FACTORY SETTINGS TRIP VIEWING ALARMS PRESET TRIPSET DELAY INTERVAL PAUSE ALM SETUP ALARM SETUP BUZZER DECIMAL START TIME FAIL TIME ZERO OFFSET TURNING THE ALARMS OFF RS232 SERIAL OUTPUT STATUS BYTE BIT FUNCTION CALIBRATION eene nennen CIRCUIT DESCRIPTION eene DISPLAY MODIFICATIONS MAINTENANCE eere SHORTCUTS ADJUSTMENTS TESTING USER TABLES PAGE 1 Health Physics Instruments c RWONNN MODE
14. L 6012 INSTRUCTION MANUAL PAGE 2 Digital Display Controller Health Physics Instruments l INTRODUCTION The Model 6012 Digtial Display and Controller is designed to be used as a readout for a number of different detectors It has several alarms and trip points that are user set The front panel display shows the radiation level and the status of the instrument The following manual will discuss the various settings and functions of the instrument ll OPERATION The operation of the 6012 is very simple The first line of the display shows the radiation level from the detector It is updated every second The second line shows the status of the alarms and is updated every second Overrange is indicated on the first line in place of the radiation level and shows the text over followed by the overrange level The lights on the front panel also show the status of the alarms There are no controls that are accessible from the front panel When the instrument is first turned on there is a wait until the instrument stabilizes The number of intervals remaining until normal operation begins is shown on the display along with the version number of the software The detector may take longer than the wait period to completely stabilize to background levels however this should not effect the alarms because the level is close to background Ill INSTALLATION The 6012 is easily installed It usually consists of 2 parts the detector unit and the displa
15. are available on pins 15 and 16 PIN 15 driver duplicates the Remote Relay Driver but is not fail safe Pin 16 is programmable See section on setup Both are open collector drivers that need their load between ground and either 5 volts or 12 volts MODEL 6012 Digital Display Controller RS232 485 INSTRUCTION MANUAL PAGE 5 Health Physics Instruments An RS232 output is available between pin 18 ground and pin 20 TX The status is output every second Pin 19 RX is not supported in this version nor is the RS485 RESET xt Con US CC CONTRAST e CONTROL PANEL DISPLAY CIRCUIT BOARD FIGURE 2 CONTROLS ADJUSTMENT AND CONTROL PANEL UP IV CONTROL PANEL The control panel is under the bottom half of the front panel Remove the two screws on the front panel and the single screw on the bottom The control panel is located on the left side of the circuit board and consists of the three push buttons and the small round trimmer above them see Figure 2 The three buttons are from left to right MODE SET and UP These
16. arm 1 3 XXXX 2 hex digits Alarm level for alarm 2 4 XXXX 2 hex digits Alarm level for alarm 3 5 XX 1 hex digit This is the fail This starts as the fail number and counts down to zero At zero it shows FAILURE in the display 6 XX 1 hex digit This is the status byte See below for a description STATUS BYTE The status byte consists 8 bits The bits are represented as follows Bit 0 is the LSB and bit 7 is the MSB Only bits O thru 4 are used BIT FUNCTION O no trip 1 trip for alarm 1 0 no trip 1 trip for alarm 2 O no trip 1 trip for alarm 0 no fail 1 fail 0 normal 1 overflow RON MODEL 6012 INSTRUCTION MANUAL PAGE 12 Digital Display Controller Health Physics Instruments CALIBRATION The instrument has no calibration adjustments The calibration adjustments are in the detector The display is derived from a crystal controlled clock The instrument should be adjusted to as low a setting as possible but with no false alarms The primary problem with setting it too low is noise from the detector Temperature shock and ambient electrical noise can cause the level to fluctuate Inaccuracies in the detector and other parts of the circuit can also cause noise The noise can be of two types 1 Transient noise This type of noise typically comes from the detector It is short and typically lasts 1 to 2 seconds 2 Long term noise This type of noise will cause the output to rise with no radiation This type of n
17. dly pushing the mode button will cycle the display through all of the adjustments After the last adjustment the program will go to the same display as at turn on Remember you can cycle right back into setup from the turn on display by again pushing down the MODE button until the setup menu appears Most of the settings are saved in EEPROM after the last item consequently if you are part way through changing the settings and decide you don t want the new values hold down the left hand button until the turn on menu appears then quickly release the button this will reset the 6012 and put you back in the Setup Mode You can also turn power off then back on or if the front panel is removed push the reset button The following is a list of the parameters in the order that they are seen on the display along with the factory presets The letters A1 A2 etc refer to alarm 1 alarm 2 etc DELAY A2 is the delay value for alarm 2 Presets 0255 TRIPSET 1 1 00 TRIPSET A2 0 TRIPSET A3 0 50 DELAY A1 0 DELAY A2 0 DELAY A3 0 INTERVAL A1 1 INTERVAL A2 1 INTERVAL A3 1 PAUSE 1 10 PAUSE A2 10 PAUSE A3 10 Alm Setup A1 9 Alm Setup A2 9 Alm Setup A3 132 No alm Setup 130 Start Time 100 Fail Time 255 Zero Offset 0 50 Please read the section on the alarms to become familiar with the action of the alarms All of the parameters are reviewed below You must cycle through all of the parameters to get back to a normal display PRESET Set this to 255 or ab
18. e If the microprocessor is reset either by power on or by the watchdog timer U3 then the output pin P1 4 will float high opening the relay U6 divides the incoming counts by 2 to slow them down U9 and 012 are 5232 and 5485 outputs respectively 013 and 014 are used as inputs and outputs to the detector In this case only U14 is used as an input U15 is a 5 volt voltage regulator and U16 converts this to 5 volts for the LCD contrast R1 adjusts the contrast U3 is a watchdog timer for the MPU and it needs a pulse on the DACCL at least every second to keep the watchdog from timing out MODIFICATIONS Not all of the parts on the circuit board and schematic are included in this model They are included for future changes or to allow this circuit board to be used in different ways This includes jumpers for 5232 and 5485 inputs and outputs on both the communications lines and the data lines from the detectors The lines from the detector are designed to accept pulses or serial data from the detector The watchdog can be disabled by JP12 X MAINTENANCE This section discusses the circuit of the instrument and any adjustments that may be needed SHORTCUTS Push the right hand button on the control panel during the warm up period to cancel the warm up period Also remember to push the right hand button on the control panel to see the action of the alarms and to tell which alarm is tripping Push the center button on the control panel during norma
19. er For example the third line of the table below shows Alarm31 0100 If you change the to zeros it becomes the number 10000100 This is a binary number To find its decimal equivalent look at the binary to decimal conversion table in the appendix Look at the third binary column from the left and about 10 numbers down You should find the number 10000100 Next to it is the number 132 This is the decimal conversion 10000100 in binary is 132 in decimal This decimal number is the number you enter into the alarm setup The following is a table that shows the normal operation of the instrument as it is setup using the factory presets RELAY TS16 TP4 TP5 REDLED YELLOW GREEN BEEPER DECIMAL or 22 me Alarm 1 ee pe 19 Setting does not matter for normal operation We suggest each of these be set to 0 The decimal calculations assume that the items marked are set to 0 START TIME When the instrument is turned on it waits before going into normal operation This gives time for the instrument to stabilize and to gather an average for alarm 4 The display shows the seconds counting down until normal operation The start time is the starting number for the countdown It can also be thought of as the start delay If set to a low number the detector may not stabilize in time for the alarms If it is set to a high value it only delays normal operation longer than necessary MODEL 6012 INSTRUCTION M
20. he only setting PRIORITY The following table shows the priority of the alarms Alarm 1 has the highest priority which means its action will supersede the lower priority alarms Fail has the lowest priority because if the instrument fails it obviously has no counts and cannot set the other alarms Alarm 1 Highest Priority Alarm 2 Alarm 3 Fail Lowest Priority NO ALARM The No Alarm setting is fixed with the OK LED turned on the relay and beeper turned off and the display showing OK FACTORY SETTINGS The following table lists the factory settings for the alarms TRIP Alarm Use Interval Delay Trip High TripLow OKLED RELAY BEEPER LED LED High Levels FAIL Normal NoTip OFF OFF JON OFF Jom VIEWING ALARMS The delay and pause and trip status can be viewed on the 2 line of the LCD during normal operation by pushing the right hand push button under the front panel cover When the push button is down the status of the three alarms will be displayed on the LCD The three groups represent the alarms and are in the following order from left to right alarm 1 alarm 2 and alarm 3 The first character of each group is an if the alarm is not tripped and a T if the alarm is tripped The next number is a 2 digit hex number of either the delay or the pause If the alarm is not tripped then it is the delay If the alarm is tripped then it is the pause If the alarm is turned off because the tripset is set
21. igikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Digikey 60 Neal Feay 60 Neal Feay 60 Neal Feay 60 PAGE 17 Health Physics Instruments INSTRUCTION MANUAL lay Controller MODEL 6012 ital Disp igi D
22. l operation to cancel the alarms This is almost as good as a reset but it does not clear the average or the current reading it just quiets the buzzer MODEL 6012 INSTRUCTION MANUAL PAGE 13 Digital Display Controller Health Physics Instruments If you have the complete cover off of the display the reset button on the top of the board above the display can be used to abort the setup routine Just push it while in the setup routine You can also abort the setup routine by turning off the power or by holding down the left hand button until the LCD shows the startup display If you are testing the alarms and the noise is too loud put a piece of tape over the beeper It will not make it quiet but it will reduce the volume ADJUSTMENTS There is 1 adjustment The contrast is located on the control panel under the bottom cover on the front of the display Turning it will change the contrast of the display The best adjustment is to turn the control until the display is too dark then lighten it up to the point where the black squares around the characters just disappear TESTING DISPLAY The display alarms and annunciators can be tested by pushing down the center button when the display is counting down the startup time Startup time can be initiated by pushing the reset button on the display if the entire front panel is removed or by interrupting the power When the center button is held down the instrument will cycle through 9 different annunciat
23. larms will be deactivated for that alarm If other alarms are still activated they will continue to activate their alarms If during the pause period the level rises above the tripset again even for one interval the pause will be reset to the preprogrammed level Thus once activated the alarms will stay on for at least the pause period following the last occurrence of a trip This helps to keep the alarms from cycling on and off in a marginal situation ALARM 1 This alarm has the highest priority It trips if the level rises above the tripset It is usually setup to trip the front panel Trip High LED and to activate the relay and beeper When tripped it will show ALARM 1 on the second line of the display ALARM 2 This alarm has the second highest priority It is usually reserved for special uses and the tripset is set to zero to turn it off ALARM 3 This alarm has the third highest priority It is usually setup to trip the front panel Trip Low LED and to NOT activate the relay and beeper When tripped it will show ALARM 3 on the second line of the display MODEL 6012 INSTRUCTION MANUAL PAGE 7 Digital Display Controller Health Physics Instruments FAIL This alarm is used to indicate that the detector is not functioning It turns off the alarms and indicators and shows FAILURE in the display It will not activate the relay This alarm will activate if there are no counts from the detector for a number of seconds The number of seconds is t
24. names are derived from their use during setup In this manual they will be referred to as left center and right push buttons The trimmer is to adjust the contrast of the LCD Turn the trimmer to increase or decrease the contrast of the display The best setting is where the black squares around the characters just disappear PUSH BUTTON SUMMARY Name Location MODE LEFT SET CENTER UP RIGHT PUSH BUTTON ACTION During Warmup Wait period Left Enter into setup mode Center Test mode for alarms Right Start normal operation immediately Normal operation Left Enter into setup mode Center Reset Alarms Primary USE This is used for changing the settings Pointing to the digit to set when changing settings Increment the digit MODEL 6012 INSTRUCTION MANUAL PAGE 6 Digital Display Controller Health Physics Instruments Right Display Alarm status and radiation level without background subtract During Setup mode Left Advance to next item Center Move arrow that points to a digit Right Increment the digit pointed to by the arrow V ALARMS There are 4 alarms built into the instrument All are based on count rate and all are adjustable both for count rate and for their control over the indicators and relays The only thing that is not adjustable is their priority Alarm 1 2 and 3 all trip if the count level exceeds the alarm setting The 4 alarm a Fail alarm occurs if there are no counts from the detector for a preset time Each alarm
25. ne interval It is usually set around 10 seconds It can be set longer but it usually is determined by how long the beeper or external alarm needs to be on to arouse someone that there is a problem ALM SETUP ALARM SETUP This is a number that is used to set the condition of the alarms indicators and external outputs There are 4 setups one for each of the three alarms and one for no alarms Below is a description of the alarms indicators and external outputs Each can be set to only two values 0 or 1 Following the descriptions is the method used to calculate the values and to determine the decimal value RELAY This controls the relay The contacts of the relay are brought out to the terminal strip TS When the relay is set to 1 7510 and TS11 are shorted TS11 and TS12 are open When the relay is 0 pin TS10 and TS11 are open and TS11 and TS12 are shorted The relay is operated in the fail safe mode The signal that drives the relay is also routed to pin 14 on the terminal strip When the relay is set to 0 the pin is at 12 volts and the relay is not energized When the relay is set to 1 the pin is at 0 volts and the relay is energized This setting also controls an extra external output on the terminal strip When the relay is set to 1 then pin 15 on the terminal strip is low TS16 This is pin 16 on the terminal strip When 516 is set to 1 then pin 16 on the terminal strip is low This is only used for external control of addi
26. oise is usually caused by fast temperature changes and high ambient temperature The alarms should be setup to trip as close to 0 as possible The factory settings are conservative They are designed to be the same for all units You may want to alter some settings or all of them You can approach this in several ways but we suggest that you make one alarm more sensitive and then run it awhile and see if you get any false trips This way you can keep track of which alarm may be alarming on noise Alternatively you could hook up a computer to log the data on the RS 232 and look for the highest noise This will give you a figure that is averaged for 1 second but it will still give you an idea of the noise in the instrument The different alarms are designed to overcome some of the noise Any of the alarms that are setup with a long interval are designed to overcome type 1 noise because they average the readings over several seconds IX CIRCUIT DESCRIPTION DISPLAY The display is controlled by the microprocessor U5 U1 is an address latch that separates the address and data for the EPROM U7 U4 is the LCD display U2 is the EEPROM that stores the variables U8 is the address decoder for U4 U11 is a shift register that shifts data in and has a parallel out It is used though the buffer U10 to drive the buzzer and the front panel LEDs The relay is connected directly to the microprocessor through U10 G and U8 D This is done to make the relay fail saf
27. ors in the following order Red LED Yellow LED Green LED Front panel buzzer Relay operated fail safe T8515 T9816 TP5 The cycle will then repeat as long as the button is held down The watchdog timer can be checked by pushing the left hand button and holding it down The display will alternate between the turn on display and the first preset menu about every 2 seconds and the relay will be de energized and energized The pulse is the watchdog timing out and resetting the microprocessor MODEL 6012 INSTRUCTION MANUAL PAGE 14 Digital Display Controller Health Physics Instruments APPENDIX I USER TABLES The blank tables below are useful to determine how you want the alarms setup Copy it and fill it out not only for ease of programming but also for your records DATE SERIAL NUMBER LOCATION BY ALARM SETUP RELAY TS16 TP4 5 REDLED YELLOW GREEN BEEPER DECIMAL E mm m 1 2 3 ENTER THE DECIMAL NUMBERS ABOVE INTO THE SETUP BOXES BELOW SUMMARY OF SETTINGS ALARM 1 ALARM 2 ALARM 3 START TIME FAIL TIME MODEL 6012 INSTRUCTION MANUAL PAGE 15 Digital Display Controller Health Physics Instruments 64 40 01000000 28 80 10000000 192 CO 000000 65 41 0100000 29 81 1000000 193 Cl 00000 APPENDIX II 66 42 01000010 30 82 10000010
28. ove if you want all of the adjustments to be set to their factory preset values If you do not want the factory preset settings then push mode again to go to the next item MODEL 6012 INSTRUCTION MANUAL PAGE 9 Digital Display Controller Health Physics Instruments TRIPSET This is the alarm level This setting is a 4 digit number is compared with the level from the detector during the interval DELAY This is the number of intervals that the alarm must be consecutively activated to actually trip the alarms INTERVAL This is the number of seconds that the alarm uses for its time base It counts the counts from the detector for that time and compares it to the trip set If this setting is set to 1 it will have a 1 second time base which is the same time base as the display The interval will effect the tripset If the interval is set to 1 1 second then the tripset level will be compared to the counts that arrive in 1 second If it is set to 10 10 seconds then the tripset level will be compared to the counts that arrive in 10 seconds or 10 times MORE sensitive than the 1 second choice Thus if the 1 second example had its tripset set to 20 the 10 second example would have to have its tripset set to 2 to be the same sensitivity We recommend that this be set to 1 second PAUSE This is the number of seconds after the level has decreased below the trip set that the alarm will remain activated It is used to keep the alarm on longer than o
29. tional relays or devices and is not used in normal operation of the monitor 4 This is an internal test pin on the circuit board When is to 1 then the testpoint 4 on the display circuit board is high This pin has no normal function and is not used in normal operation of the monitor TP5 This is an internal test pin on the circuit board When TP5 is set to 1 then the testpoint 5 on the display circuit board is high This pin has no normal function and is not used in normal operation of the instrument MODEL 6012 INSTRUCTION MANUAL PAGE 10 Digital Display Controller Health Physics Instruments RED LED This is the front panel red LED It is marked TRIP HIGH on the front panel If the RED LED is set to 1 then the LED is on YELLOW LED This is the front panel yellow LED It is marked TRIP LOW on the front panel If the YELLOW LED is set to 1 then the LED is on GREEN LED This is the front panel green LED It is marked OK on the front panel If the GREEN LED is set to 1 then the LED is on BUZZER This is the front panel buzzer If BUZZER is set to 1 then the buzzer is turned on and emits a loud continuous beep DECIMAL The following table is a compilation of the settings of all the parts of the alarm setup The decimal is the value that is calculated from the results of the table The line of one s and zero s on a row is actually a binary number This number is converted to decimal and that is the decimal numb
30. y unit although it may also be used as a slave display There is a single 4 wire connection between the detector and the 6012 It has a terminal strip for connections and it unplugs from the circuit board to permit removal of the units without unscrewing the cable The detector and display can be remoted up to 100 feet We recommend Belden 8723 a 2 pair shielded cable For short distances any 4 conductor cable will work For longer distances or if it is used in a noisy environment we recommend a shielded cable The display is installed by first mounting the mounting bracket The display unit may be in any orientation The display sets into the mounting bracket and is held in place with the two thumbscrews There are 2 cables that connect to the display The first is the 2 conductor power cable from the wall mounted power supply The second is the 4 conductor cable from the detector In addition wires for RS 232 external alarms or remote drivers may also be connected to the terminal strip Remove the bottom half of the front panel by removing the two screws on the front panel and the single screw on the bottom The power cable and detector cable are connected according to figure 1 Additional cables may be connected to the display as needed for RS 232 relay contacts or other needs The cable leads out through the openings on the bottom of the display Replace the cover unless you want to change the factory settings There is no on off switch since this
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