Lakeshore DRC-93C User Manual Download Page 1

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Summary of Contents for DRC-93C

Page 1: ...com Fax 614 891 1392 Telephone 614 891 2243 Methods and apparatus disclosed and described herein have been developed solely on company funds of Lake Shore Cryotronics Inc No government or other contra...

Page 2: ...Capacitance Input 9220 3 Standard 3 volt Configuration 100 ohm platinum conversion module 1000 ohm platinum conversion module 9305 Thermocouple Input Card 9317C Ultra low 0 3K Germanium input Card 931...

Page 3: ...tronics Inc at a reasonable cost LIMITATION OF WARRANTY This warranty does not apply to defects resulting from improper or inadequate maintenance unauthorized modification or misuse operation outside...

Page 4: ...2 3 9 Heater Power 2 4 2 3 9 1 MAX HEATER POWER Limit 2 4 2 3 9 2 Current or Power Output Display 2 4 2 4 REMOTE SENSOR ID Connector 2 4 2 5 IEEE 488 INTERFACE Connector 2 5 2 6 OPTIONS 2 5 2 7 ENVIRO...

Page 5: ...lay Resolution 3 7 3 8 7 1 Temperature Display Resolution Set 3 8 3 8 8 Filtering the A and B Inputs 3 9 3 8 9 Math Functions 3 9 3 9 SENSOR CURVE SELECTION 3 10 3 9 1 Standard and Precision Option Cu...

Page 6: ...ERATION 4 1 4 2 4 3 INTERFACE CAPABILITIES 4 4 DRC 93C IEEE 488 ADDRESS SWITCH 4 3 4 4 1 Terminating Characters delimiters 4 3 4 4 2 Talker and or Listener Configuration 4 3 4 4 3 The IEEE 488 INTERFA...

Page 7: ...S Command 4 12 4 9 2 The WP Request Data String 4 16 4 9 4 Setting the RESET Integral The I Command 4 16 4 9 5 Setting the RATE Derivative The D Command 4 16 4 9 6 Heater Range The R Command 4 16 4 9...

Page 8: ...gram Step to the 93C 4 12 3 Examples of Saving and Restoring Executable Internal Program Steps 4 24 4 12 3 1 Program to Request and Store Program Step 1 thru 10 using the HP86B 4 24 4 12 3 2 Program t...

Page 9: ...tion 5 2 5 6 3 Calibration of GAIN RATE and RESET 5 3 5 6 4 Calibration of Power Output 5 3 5 6 CALIBRATION 5 2 5 7 TROUBLESHOOTING 5 4 SECTION VI PROGRAMMING INSTRUCTIONS 6 1 INSTRODUCTION 6 1 6 2 PR...

Page 10: ...2 Example 2 Ramp and Soak 6 6 and Ramp Down with Gain Ramping 6 7 L i m i t of 10 Cycles 6 8 6 8 3 Example 3 Repeated Setpoint Ramp Up Soak 6 8 4 Example 4 Repeat of Example 3 with a SECTION VII ACCE...

Page 11: ...ector 3 19 SECTION IV REMOTE OPERATION Table 4 1 Interface Functions 4 2 Figure 4 1 IEEE 488 Address Switch for the DRC 93C 4 3 Table 4 2 Allowable Address Codes for the DRC 93C 4 4 Table 4 3 IEEE 488...

Page 12: ...7 Sensor C u r v e Information Table O u t p u t Format 4 35 Table 4 18 XDN1N2 Sensor Curve output Format 4 35 Table 4 19 C o n v e r s i o n of Raw U n i t s D a t a for the XC Command 4 38 SECTION V...

Page 13: ...our bands of tracking accuracy are The DRC 93C Temperature Controller available Refer to DT 470 is a microprocessor based instru technical data for details ment which provides true analog control It i...

Page 14: ...ard within the can contain up to 99 sensor instrument and is called up temperature data points With the automatically unless a positive standard precision option format of temperature coefficient prec...

Page 15: ...C 93C specifications are the performance provides three term temperature standards or limits against which control Proportional GAIN the instrument is tested integral RESET and derivative RATE are ind...

Page 16: ...pendent of allows the A input and the B input Sensor Input Card and Sensor to each be assigned their own input card This allows concurrent use Temperature Control of different sensor types depen dent...

Page 17: ...hannel change or Manual modes can be used concur range change t o reach rated rently A l l keypad operations can accuracy be duplicated thru interfaces IEEE 488 Interface Allows remote H e a t e r out...

Page 18: ...orking Line Voltage Volts Verify that the AC Line Voltage Selection Wheel Figure 3 2 Key 1 located on the rear panel of the Model DRC 93C is set to the AC voltage to be used Table 2 1 and that the pro...

Page 19: ...rear panel 5 pin input connectors for sensors The lead connection definition for the sensor s is given in Table 2 2 and is shown in Figure 2 2 Table 2 2 INPUT Connections for J1 Input A and J2 Input B...

Page 20: ...ommended for sets of leads If they are in other sensor types close proximity they should be wound so as to cross the sensor The Lake Shore Cryotronics Inc leads at ninety degrees if at all QUAD LEAD 3...

Page 21: ...4 REMOTE SENSOR I D Connector The REMOTE SENSOR ID connector J5 on the rear panel receives POSITION DATA from a Model 8084 or 8085 Sensor Scanner or a Model SW 10A Ten Sensor Selector Switch The 2 4 M...

Page 22: ...ltitude speci fications have been determined for 2 6 4 The High Resolution Set Point this unit expands the set point resolution to 0 01 kelvin above 100K and 0 001 kelvin below 100K The equivalent 2 8...

Page 23: ...instrument in a plastic bag place it in the carton using original spacers to protect protruding controls Seal the carton with strong paper or nylon tape Affix shipping labels and FRAGILE warnings If...

Page 24: ...sed in the 93C as well as the different sensor types to be used 8219 series resistance input card with the DRC 93C The installation of these cards is covered in Section 7 3 of this 3 2 2 Single Input...

Page 25: ...SCRIPTION sensor response curves from the in dividual sensor calibrations as 3 7 POWER ON indicated above and store them in the DRC 93C via the 8001 Precision Before connecting AC power to the Option...

Page 26: ...esolution key address can obviously be changed by is pressed the display will im the user and verification of that mediately show the resolution as change is always given on power up signed to the Upp...

Page 27: ...ing whether the keys sensor in the Upper or Lower 14 Decimal Keypad with Blue Legend Display is the control sensor functions of SENSOR CURVE 5 Display of Set Point in temper FILTER MATH UNITS RSLTN at...

Page 28: ...its will be discussed in the sections associated SENSOR number and UNITS dealing with the specific Black Similarly if the CTRL Arrow points Legend functions down then the Lower Display and its associa...

Page 29: ...method in which The 8229 Scanner Input option is the entry can be changed is by using covered in Section VII the keypad to enter an amount which is to be added or subtracted from 3 8 4 SCAN Function...

Page 30: ...rature units are not allowed due to the inability of this sensor 3 8 6 2 3 Capacitance Units to hold a calibration upon cycling The capacitance mode is allowed for 3 8 6 2 Sensor Units M o d e the 921...

Page 31: ...he RSLTN key kelvin and 100 kelvin where the and hitting the key will change sensitivity i s approximately 2 5 the resolution in the Lower Display millivolts per kelvin and the volt age resolution i s...

Page 32: ...o normal appear in the upper left hand corner If the On was left in the Upper of the sign digit in the Upper Display when the MATH key was re and or Lower Displays to flag leased then the instrument w...

Page 33: ...are factory installed includ ing their address and the number of data points associated with each curve This Table should be updated for the instrument if additional curves are added at a later time...

Page 34: ...the scanner platinum curve Curve 03 for a is in and thus which external sensor diode input card If Curve 03 is is being examined The data on the selected the DRC 93C will default REMOTE SENSOR ID Conn...

Page 35: ...VE key will show that the ecting a position External Scanner has been selected by indicating the REMOTE POSITION 3 Select the Curve Number desired DATA in the GAIN window for the for that position fro...

Page 36: ...ired IF A KEY IS NOT HIT FOR A PERIOD OF ABORTTHECURVEPROGRAMMINGRUTINE AND RETURN TO NORMAL OPERATION The flashing quantity in the Set point Display is the Curve to be examined The other quantity is...

Page 37: ...Display will begin to flash Enter 12 using the keypad followed Let us say that we wish to enter a by the ENTER key The displays will new set of curve data into an avail read able slot at Curve 21 Fro...

Page 38: ...press data point 01 is 499 9K and the PROG key to return to normal 0 0000 volts For a positive temp operation erature coefficient P curve the first data point is 0 0K and 0 0000 Following the editing...

Page 39: ...l return to cedure is also used to enter the normal operation if no key is dwell except that the minus sign and pressed for 20 seconds decimal point are not permitted See section 3 8 5 3 10 SETPOINT a...

Page 40: ...esponds to a 10 1 10 2 10 3 and 10 4 multiplier respectively The DRC 93C provides a feature in The OFF key turns off the output which the heater power can be set power independent of the setpoint manu...

Page 41: ...ction Monitors output of Sensor INPUT A and Sensor INPUT B buffered voltages and 8225 linear analog output option J3 Models 8084 or 8085 Scanner optional 6 REMOTE SENSOR ID J5 Connects to POSITION DAT...

Page 42: ...e switch see Section 3 9 2 The Parallel input data format is given in Table 3 5 The user may supply to the REMOTE SENSOR ID his own parallel BCD 5 volt signal referred to the DIGITAL GROUND on pin 12...

Page 43: ...ICATIONS of the Interface There are 1 6 signal lines contained on the bus AND OPERATION The following discussion covers the general operation of the IEEE 488 interface For a more detailed 1 8 Data Lin...

Page 44: ...le in a logical AND the NDAC line all others ignore the DATA lines will not go high until all devices The REN Remote Enable management line is pulled low by the BUS 4 3 INTERFACE CAPABILITIES CONTROLL...

Page 45: ...F Carriage Return and Line Feed as the terminating characters for 4 4 2 TALKER and or LISTENER C o n input and output data For the figuration output data from the DRC 93C back to the computer over the...

Page 46: ...1 1 0 0 0 1 1 1 0 1 0 0 0 0 1 0 0 1 0 1 0 1 0 0 1 0 1 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 0 0 1 1 1 1 1 0 0 0 0 1 0 0 0 1 1 0 0 1 0 1 0 0 1 1 1 0 1 0 0 1 0 1 0 1 1 0 1 1 0 1 0 1 1 1 1 1 0 0 0 1 1 0 0 1 1 1...

Page 47: ...the ap The DRC 93C recognizes three of the propriate software code the effect Addressed commands SDC Selective is to pull the corresponding Inter Device Clear GTL Go To Local face Management line low...

Page 48: ...ar DCL Selected Device Clear SDC Addressed command Go to Local GTL Serial Poll Enable SPE Unaddress Commands Unlisten UNL Untalk UNT HP9825A HP86 IEEE 488 Command Command Bus Format rem712 REMOTE712 U...

Page 49: ...and observe the IEEE address on the 4 7 2 Interface M o d e T h e MN1 LSCI 4 7 2 1 Local This message MO 93c Table 4 61 clears the remote opera Add12 tion of the DRC 93C and enables front panel operat...

Page 50: ...lect Control Setpoint Sensor Select Sample Sensor Select the Control Setpoint Resolution Select the Sample Resolution Select the control Sensor Deviation ON or OFF Select the Sample Deviation ON or OF...

Page 51: ...ut the user may need to reconfigure his IEEE 488 4 7 4 Clear card The C lear Message see Table 4 41 4 7 3 Terminating characters sets the DRC 93C to the turn on T h e TN1 Command state This action is...

Page 52: ...inators are b 0 CR ENDC LF also with Switch OPEN 1 LF END CR default unless changed 2 END LF 3 END DABd Clear command returns unit to power up state Restart Functional Description Interface Status ZN1...

Page 53: ...a Rs 232C command if the control sensor is option in Option Slot 2 and a not on Channel B since this command Scanner Card option in option Slot may then be switching the control 3 sensor 4 8 SELECTION...

Page 54: ...d control form is NB002 etc normal the remote position i s off the SENSOR A ID indicating that the 4 8 9 The A and B Sensor I D Informa DigitalFilteringisOffandtheREMOTE tion The AC1C2 and Bc1C2 comma...

Page 55: ...e F2SA0 F2SA1 F2SA2 F2SA3 F2SA4 and F2SB or F2SB0 With 8229 Scanner Card Only Function 3C Select the Control Setpoint Resolution N1 is 0 xxx 1 xxx x 2 xxx xx 3 xx xxx or 4 x xxxx Forms of the command...

Page 56: ...A ID 00 through 1F N3N4 is the A0 curve number 00 through 30 N5N6 is the A1 curve number 00 through 30 N7N8 is the A2 curve number 00 through 30 N9N10 is the A3 curve number 00 through 30 N11N12 is th...

Page 57: ...9210 20 6 9317C 9318C 9215 15 9215 150 9210 20 3 9220 P2 9220 P3 9220 R1 Functional Description Set Point Input and its allowable position depends on the control units Limits are The decimal point is...

Page 58: ...any combina field with examples of the command tion without a value following the being P 1 P0 1 P9 P9 P9 0 letter sets the chosen parameters P99 P99 etc to 0 e g SP sets the set point The string P98...

Page 59: ...r Power 00 t o 99 of H e a t e r Range Functional Description Control Parameters N1N2N3 N4N5N6 N7N8N9 N10 N11N12N13 N114N15 20 characters plus up t o 2 terminators where N1N2N3 is the G a i n Value N...

Page 60: ...a from the DRC 93C other scanner commands are sent to containing five bits called the the scanner StatusReports TheseStatusReports indicate when certain processes are 4 1 0 5 T h e WY Data S t r i n g...

Page 61: ...the reading on a given channel turning their corresponding b i t s i n becomes stable or valid a service the Status Register mask off request is issued by the DRC 93C provided that B i t 6 i n the Sta...

Page 62: ...out a Service Request on the SRQ IEEE 488 4 11 2 5 When operating without the line If the SRQ bit is not set ServiceRequest it is stillpossible off then the DRC 93C is inhibited for the BUS CONTROLLER...

Page 63: ...x x xx x x xx etc 4 1 1 3 5 Examples for setting Mask If Bit 2 of the Mask is set 1 then when the control sensor reading Example 1 Q61 Sample Data gets within the chosen limit from Ready with the Serv...

Page 64: ...Model DRC 93C Figure 4 2 DRC 93C Status Register Mask and Status Register Format Table 4 12 Commands to F i x the Status Register Mask Note On means 1 Those entries left blank are OFF 0 4 22 COPYRIGHT...

Page 65: ...s saved at power down provided ters These characters are to be switch 2 of the internal 8 switch stored by the user for later trans package is on mission back to the instrument by the EN1N2 command de...

Page 66: ...se the command INITIALIZE 93C D700 can be executed 10 REM STORE 20 REM PROGRAM TO READ AND STORE AN INTERNAL PROGRAM 30 REM SET IEEE ADDRESS TO 12 40 ADDRESS SWITCH 1 OPEN 0 TO GET CR LF 50 DIM A 62 N...

Page 67: ...ents GPIP PC2 IEEE 488 Card for the IBM PC and compatibles 10 CLEAR 60969 BASIC DECLARATIONS 20 IBINITl 60969 This number is different for each computer 30 IBINIT2 IBINITl 3 40 BLOAD bib m IBINITl 50...

Page 68: ...m Steps 01TO 10 110 INPUT l C 120 B E Assemble command 130 B B CHR 13 CHR 10 Add CR and LF to command 140 CALL IBWRT TEMP B Send data to 93C 150 FOR Z 1TO 1000 160 NEXT Z 170 NEXT I 180 CLOSE 1 190 EN...

Page 69: ...IS PROGRAM WAS WRITTEN FOR THE NATIONAL INSTRUMENTS GPIP PC2 IEEE 488 CARD FOR IBM PC AND COMPATIBLES This program will restore Programs Step 1 thru 10 from File PROGRAM1 on Disk A COMMON SHARED IBSTA...

Page 70: ...assume that the data being sent is for The following example in HP Basic their attention The DRC 93C1s illustrate the commands associated Talk Address L is sent to with obtaining output data from the...

Page 71: ...e variations are the same as for WO see below Control Sensor Data 8 Characters plus up to 2 terminators where the variations are the same as for WO see below Set Point Data 8 Characters plus up to 2 t...

Page 72: ...IONS 20 IBINITl 60969 This number i s different for each computer 30 IBINIT2 IBINITl 3 40 BLOAD bib m IBINITl 50 CALL IBINIT1 IBFIND IBTRG IBCLR IBPCT IBSIC IBLOC IBPPC IBBNA IBONL IBRSC IBSRE IBRSV I...

Page 73: ...IBWRT TEMP B Send command to instrument call IBRD TEMP A ENTER from instrument SEE NOTE BELOW print A Display received information on screen A space 750 Clear A goto Loopl end Lake Shore Cryotronics...

Page 74: ...point data 380 DISP WP A Display s t r i n g WP 390 DISP Space a Line 400 O U T P U T 712 WY Set for WY 410 ENTER 712 A Ask for Scan Information 420 DISP WY A Display Scan Information 430 DISP Space a...

Page 75: ...The following program is 80 DISP FILETABLE 57 74 Curve 01 for the HP86B and is an example of 90 DISP FILETABLE 75 92 Curve 02 the XDN1N2 to output Sensor Curve 100 DISP FILETABLE 93 1101 Curve 0 0 03...

Page 76: ...ogR Data points must be entered in ascending units order The character terminates the Sensor Curve input Up to 1 8 characters can be input The data is input in units temperature pairs Edit Sensor Curv...

Page 77: ...t is the Sensor Curve assigned to Remote Position A00 through A1F and BOO through B1F Table 4 18 XDN1N2 Sensor Curve Output Format Command output A minimum of 54 Characters for a curve with the minimu...

Page 78: ...racters are will output the Information Table input the last 6 are used in the formatted as in Table 4 17 followed Sensor Curve Information Table as a by a comma in place of the capsule description of...

Page 79: ...umber of data points the curve the unit inserts the which the user can input for a point in its proper position in the curve is 1 which would result in a table 3 data point curve and the maximum would...

Page 80: ...55350 volts No conversion is necessary No conversion to temperature is allowed In ut range is 1 to 104 for the 9317C 1 to where 1 would look like 0 00000 and 105 would look like 5 00000 Input range i...

Page 81: ...ith dry low pres sure air 5 Replace fuse holder close fuse compartment and connect power cord 5 3 FUSE REPLACEMENT The line fuse is accessible from the rear of the DRC 93C Use the The rear panel three...

Page 82: ...A or J2 INPUT B connector should read as follows to simulate a diode sensor input is required for operational checks of 9210 20 3 1 0000V 100 V the DRC 93C The test connector 9210 20 6 1 0000V 100 V...

Page 83: ...the unit goes the A D settings for this input as to V for a diode configuration well as the units change 9210 3 6 or 9220 3 6 or for a resistance card configuration 5 5 6 Heater Output Test 9220 P2 P...

Page 84: ...read approximately 1 v o l t Setting current by switching internal dip the GAIN t o 99 w i l l result i n a s w i t c h S4 1 reading of approximately 7 2 volts 5 5 7 Checking Gain Reset and Rate 5 5 7...

Page 85: ...nominal values If they are slight point the amount of gain the ly off it should not effect opera speed at which you change the volt tion since the heater circuit is age as well as when the reading is...

Page 86: ...he potentiometer labeled DVM reads 1 0000 volts SP ZERO ADJ until the DVM reads 0 0000 volts 5 Repeat 3 and 4 until they do not change 5 Enter a set point of 2 7000V and adjust the potentiometer label...

Page 87: ...TP28 be bad For the 9317C the moni Gnd at TP1 If this is a posi tor voltage should be approxi tive value that varies from 0 7 3 mately a factor of ten lower volts as the gain setpoint or The same thr...

Page 88: ...om TP19 to TP21 is correct and there is no heater power on any range than U47 or U48 are probably bad and both should be replaced Before it is decided that U47 and U48 are bad be sure the relays K4 K8...

Page 89: ...ristic of sensor used Note 2 0 1 A to 1 0mA Sensor voltage pinned at 1mV 9317C or 10mV 9318C Note 3 To read correctly in temperature these input cards must be used with calibrated sensors and the 8001...

Page 90: ...S M T F 3 0 1 1 4 W 1 R E S M T F 9 8 4 1 4 W 1 R E S M T F 2 9 2 1 W 1 R E S M T F 3 5 3 W 1 R E S M T F 1 2 5 3 W 1 POWER S W I T C H 2 P O L E D I P S W I T C H 8 P O S CONNECTOR 2 5 5 0 C O N N E...

Page 91: ...EY K E Y TOP M E D I U M GREY AC L I N E CORD P L U G F U S E H O L D E R L I N E V L T G S L C T R CNNCTR J 3 ON RB TO M B CONNECTOR T E R M I N A L S CONNECTOR 5 P I N S O C K E T CONNECTOR 7 P I N...

Page 92: ...F 1 0 V C A P T A N T 1 0 M F 3 5 V C A P T A N T 3 3 M F 2 5 V D I O D E S I L S W I T C H I N G C O N N E C T O R S 0 C K E T ON D D B C O N N E C T O R S 0 C K E T ON D D B T R A N S I S T O R S I...

Page 93: ...Figure 93C 1 a Component Layout DRC 93C Main Board...

Page 94: ...Figure 93C 1a Component Layout DRC 93C Main Board...

Page 95: ...Figure 93C 1 b Schematic DRC QSCMaln Board 1 Input Power Supply...

Page 96: ......

Page 97: ...Figure 93C ld Schematic DRC 93C Main Board 3 Digital Section...

Page 98: ...Fig 3 Schemat R tions...

Page 99: ...d Summation Figure 93C 1f Schamatic D...

Page 100: ...Figure 93C 1g Schematic DRC 93c Main Board 6 PID Control...

Page 101: ...Figure 93C 1h Schematic DRC 93C Main 7 Output Stage...

Page 102: ...Figure 93C 1 i Schematic DRC 93C Main Board 8 Rear Panel Interconnector...

Page 103: ...Figure 93C 2a Component Layout DRC 93C Display Board...

Page 104: ...Figure 93C 2b Component Layout DRC 93C Display Driver Board...

Page 105: ...Figure 93C 2c Schematic DRC 93C Display Board 1 Setpoint Section...

Page 106: ...Figure 93C 2d Schematic DRC C Display Board 2 Inp Display Section...

Page 107: ...Figure 93C 2e Schematic DRC 93C Display d 1 Digital Section...

Page 108: ...Figure 93C 2f Schematic DRC 93C Display Driver Board 2 Bar Graph Drive Section...

Page 109: ...Figure 93C 2g Schematic DRC 93C Display Driver Board 3 Display Matrix...

Page 110: ......

Page 111: ......

Page 112: ...I T E M NO C1 C2 C 5 C13 U1 U2 U3 U4 U5 U 6 U7 U 8 Y 1 LSCI P a r t Number 37 59 1 8 1 0 1 1 4 4 1 0 4 5 1 1 Q ty 1 1 Description M F R MF R P A R T NO...

Page 113: ...Microprocessor Card...

Page 114: ...lue the factory with a repertoire of example stored programs which ramp Ramp Time 0 to 30 days specified and soak etc These programs in days hours minutes and seconds allow the user to quickly learn t...

Page 115: ...hange t o the displayed values onentering this command during program operation a t the beginning of the ramp This command is normall used for rapid warmup where ramp times exceed 0 1K second 4 RampDo...

Page 116: ...g both the PROGram 2 Press the INTernal key The and INTernal annunciator lights PROGram indicator will stop lit flashing and turn on as will the INTernal indicator Section 6 5 2 Program Step Selection...

Page 117: ...ntered i n the same RAMP count way The t i m e value should be non zero for commands 1 2 3 4 and 5 When a Step is selected the command position w i l l flash If a 6 5 7 Entering the Program Step numbe...

Page 118: ...period of 30 minutes and a soak indicator will turn off and dwell of 1 hour normal operation will resume 5 Press the SCAN key to begin execution of the program beginning at the Program Step selected...

Page 119: ...l be will be necessary to fix the set to 1K to indicate 1K step up setpoint at 40K prior to the ramp every 30 seconds for a total of 60 Here it will be set to dwell for 10 steps or 60K in 30 minutes 1...

Page 120: ...cate where the ramping will end Note that even if the t h e were selected incorrectly the ramping would still end at 100K It is necessary to select the timer increment per tenth to arrive at the lOOK...

Page 121: ...same as Step 06 of Example 2 Example 3 with a Limit of 10 Cycles except that the JUMP VECTOR is t o terminate the program mode Step Command JUMP VFATOR 07 1 08 Step Cammand JUMP VFATOR 08 5 09 setpoin...

Page 122: ...setpoint 100 0 G a i n 20 Rate 0 R e s e t 5 STEP 1 16 Step cbamnand J lMp VECroR 1 6 5 1 2 00 00 M i n u t e s n d s 0 0 0 1 Days HOU S setpoint 4 0 0 Gain 10 Rate 0 R e s e t 10 STEP 17 Step Cammand...

Page 123: ...nterface Cable 7 2 8271 04 Scanner Sensor Cable for 8229 7 2 INPUT CARDS Old Input Card Dip Switch Definitions 7 3 8210 8211 8219 P2 8 2 1 9 P 3 8219 R1 9210 Diode Input Card 9210 1 9215 Capacitance I...

Page 124: ...Remove the two blue rack mount The cable s mechanical and access covers if present from electrical specifications are the front side corners of the included with the cable unit to be rack mounted This...

Page 125: ...This cartridge heater is 3 8 i n WARNING To prevent shock hazard turn off the instrument and discon nect it from the AC line power before changing the Input Card switch settings OLD INPUT CARD DIP SWI...

Page 126: ...ode Input Card...

Page 127: ...T L O C K I N G H E A D E R T R A N S I S T O R P N P S I G N A L S W I T C H 2 P O S 8 4 P O L E I N T E R L O C K I N G M O S F E T P C H A N N E L I C OP AMP V O L T A G E R E F E R E N C E 6 9 5...

Page 128: ......

Page 129: ...00V C O N N E C T O R IC TO B P 6 P O S T LOCKING H E A D E R TRANSISTOR PNP SIGNAL S W I T C H 2 POS 4 P O L E I N T E R L O C K I N G MOSFET P CHANNEL IC OP AMP V O L T A G E REFERENCE 6 95V IC OP A...

Page 130: ...accuracy See Table 9210 1 9210 3 SPECIFICATIONS Specifications for the Model 9210 Diode Input Card are given in Table 9210 1 The card can be configured by the user as either a 3 volt 9210 3 or a 6 vo...

Page 131: ...ion The digitized value is converted to a serial data string and transferred 2 Remove the four screws that to the main microprocessor using secure the calibration cover to optical isolation The sensor...

Page 132: ...Card must be put Connect the DVM plus lead to the in table form consisting of voltage I pin and the minus lead to the and temperature points with the I pin Adjust the trimpot voltage in ascending vol...

Page 133: ...pacitance sensors of up to 150 nanofarads for example Lake Shore CS 501 Series The card can be configured by the user as either a 15 nanofard 9215 15 or a 150 nanofarad 9215 150 card by switches on th...

Page 134: ...40 0 200 0 270 0 295 0 1 7609 2 0347 2 4227 2 3544 1 4847 0 9445 0 6307 5 3155 6 1118 7 2357 7 0525 4 5379 2 9062 2 1054 1 9492 11 1972 12 9423 15 3912 14 9303 9 3561 5 9762 4 3180 3 9989 6 5884 7 133...

Page 135: ...th time and with increased cycling The reduced capacitance C T C 4 2K for T 290K is stable to within 0 5K on the average Also these variations do not create instabilities and do not impair the sensors...

Page 136: ...ness locking tab is seated current connections and the other over the extended edge of the pair for the voltage connections wiring harness mating connector The pin contact of the connector is Verify t...

Page 137: ...the ap The 9215 15 configuration provides propriate channel either 15 15 or a charging current switched at a 15 50 the 15 for the 9215 15 frequency of 5 kilohertz The configuration or 50 for the 9215...

Page 138: ...n the switches located on the card This Section provides information 1 Locate DIP switch package SIA to permit recalibration if needed Switch 2 Under normal opera tion this switch is CLOSED 1 Change t...

Page 139: ...the 6 Return S1A Switch 2 t o the 9215 150 9 2 1 5 8 3 Span Calibration 1 Be sure that the leads are i n the configuration which w i l l be used i n your system A t t a c h the standard capacitor i n...

Page 140: ...Figure 9215 1 Model 9215 Capacitance Input Card...

Page 141: ...L S W I T C H 2 P O S 4 P O L E IC T I M E R M O S F E T N C H A N N E L I C A D C O N V E R T E R I C P S S H I F T R E G I S T E R I C F V C O N V E R T E R R E G U L A T O R 5 I C D U A L O P AMP...

Page 142: ...Specifications for the Model 9220 User Configurable Input Card are given i n Table 9220 1 of this manual The card can be configured as a 9220 3 or 9220 6 diode card a 9220 P2 or 9220 P3 platinum card...

Page 143: ...ation cover to amplified by a factor of 10 its clips and remove the cover negative 10 and digitized by a 16 bit A D converter with a resolution 3 If an Input Card must be of better than 100 microvolts...

Page 144: ...screws and slide the panel off volts and verify that the unit displays 200 00 and 100 00 ohms 2 set 100 A 1mA 3mA Current within 0 01 ohms or Connect the appropriate equivalent for the 9220 P3 and pre...

Page 145: ...PARTS Included i n this section is Figure 9220 1 It includes the Model 9220 input schematics replaceable parts list and illustrated component layout Refer to the manual for ordering information Model...

Page 146: ...Model 9220 1 Model 9220 User Configurable Input Card...

Page 147: ...S I S T O R P N P S I G N A L S W I T C H 2 P O S 4 P O L E I N T E R L O C K I N G M O S F E T P C H A N N E L I C O P A M P V O L T A G E R E F E R E N C E 6 9 5 V IC OP AMP I C O P T O C O U P L E...

Page 148: ......

Page 149: ...R T R A N S I S T O R P N P S I G W A L S W I T C H 2 P O S 4 P O L E I N T E R L O C K I N G M O S F E T P C H A N N E L I C O F A M P V O L T A G E R E F E R E N C E 6 9 5 V I C O P AMP I C O P T O...

Page 150: ...field installation Gold 0 03 at Fe chromel vs the Input Card Configuration Table Gold 0 07 at Fe E K and T located on the first page of the thermocouples are supported with Instruction Manual should b...

Page 151: ...ference Junction Temperature disabled Offset Adjustment Terminal Block Electroni ic Resolution 1 microvolt Electronic Accuracy o v e r a l l c y Controllability Display Resolution 5 digits Compensated...

Page 152: ...wiring harness locking tab wiring harness mating is seated over the extended connector edge of the wiring harness Terminal Block into the Plug the 9305 into the Alternate Connector Slot J9 if appropri...

Page 153: ...ement KP and a Cu A1 correspond with the positive alloy Alumel as the negative thennoelement listed for each type thermoelement KN It should not of thermocouple in Section 9305 5 be used in sulphurous...

Page 154: ...e can Fahrenheit degrees or Kelvin for be sent to the main board display microprocessor The Thermocouple A D converter has an auto zero 9 3 0 5 6 2 Control Operation function which means that the only...

Page 155: ...8 9 9305 7 2 selection of Reference Junction COmpensation on the DRC 91c Whether or not Reference Junction Compensation is used is selected using Switch 3 of the SENSOR ID When Switch 3 of the SENSOR...

Page 156: ...2 and BC1C2 show 9305 when the SENSOR key comands described in the DRC 91C is pressed See Section Section 4 8 5 or DRC 93C Section 9305 7 3 4 8 9 Instruction Manual The Reference Junction Compensation...

Page 157: ...struction manual it positive and multiplied by one The only additional instructions hundred to shift resolution required when calibrating the setpoint D A converter with the vtable v 100 9305 card is...

Page 158: ...lead wires with the TPl GND 2s found on the terminal screws calibration card of the 5 Locate the Rear Panel Offset Section 9305 7 2 7 Avoid using clip on leads Section 9305 7 3 controller The calibrat...

Page 159: ...mocoupleA D Span so that shorting the two halves of the the voltage read on the Display terminal block is 10 000 millivolts 3 Verify that thermal correction This test is to verify that the A D convert...

Page 160: ...ors 9305 11 REPLACEABLE PARTS Included in this section is Figure 9305 1 showing the M o d e l 9305 Thermocouple Input C a r d Schematic Replaceable P a r t s L i s t and illustrated Component Layout A...

Page 161: ...5 0 2 5184 160 0 2 2468 170 0 2 0615 180 0 1 8725 195 0 1 5839 210 0 1 2905 225 0 0 9912 240 0 0 6847 265 0 0 1670 275 0 0 0378 285 0 0 2387 305 0 0 6350 325 0 1 0387 999 9 15 0010 chromel vs Au 0 07...

Page 162: ...TC mV 0 0 15 0000 3 0 6 4582 10 0 6 4486 14 5 6 4376 19 5 6 4205 25 0 6 3951 32 0 6 3529 40 0 6 2913 48 0 6 2149 58 0 6 1022 65 0 6 0099 75 0 5 8634 85 0 5 6989 95 0 5 5156 105 0 5 3166 120 0 4 9881 1...

Page 163: ...O N N E C T O R 6 P O S T L O C K I N G RA H D R T R I M P O T 2 K S W I T C H 4 D I P P I A N O I C O P A M P I C O P A M P I C O P A M P IC A D C O N V E R T E R M O S F E T P C H A N N E L R E G U...

Page 164: ...Figure 9305 1 Model 9305 Thermocouple lnput Card...

Page 165: ...1 8 0 L S C I P a r t Number 101 0 2 2 1 0 2 0 6 4 1 0 6 1 4 0 1 0 4 081 QtY 2 2 1 1 D e s c r i p t i o n C A P P P O l M F 1 0 0 V DIODE SWITCHING C O N N E C T O R 6 P O S S O C K E T IC O P A M P...

Page 166: ...Figure 9305 3 Model 9305 Thermocouple Input Card Module...

Page 167: ...Figure 9305 2 Model 9305 Thermocouple Input Card...

Page 168: ...WARNING can be used with germanium carbon glass or carbon resistors or any other negative temperature coeffi cient resistors Both cards read in ohms from a full scale reading of 10 ohms with 1 millioh...

Page 169: ...tly A calibrated sensor and an 8001 Precision option curve generated using Lake Shore s proprietary Polynomial Interpolation Algorithm are required for the unit to display temperature accurately Input...

Page 170: ...C 9318C is a highly digitized by a microprocessor complex microprocessor controlled controlled 15 bit A D converter Input Card It s resistance The microprocessor also has measuring technique is distin...

Page 171: ...taken each t h e the input card is control thermal correction is asked for an update approximately disabled once a second and a new thermal value is determined If the Enable or disable the control vo...

Page 172: ...the heater power should be off 9317C 9318C 6 CALIBRATION SCHEDULE The 9317C 9318C changes the current AND EQUIPMENT it applies to the sensor in order to maintain between 0 8 and 1 0 The design of the...

Page 173: ...finitions of CAL 8 through a 1 9317C or 10 9318C CAL 1 References are made to test millivolt signal to the V and points adjustments and calibration V Sensor Input terminals switches that are labeled o...

Page 174: ...Current Range 2 Value 60 and position of the Internal ID Current Range 3 Value 6 switches before proceeding Substitute a 100 o h m 9317C or Attach the plus and minus leads 1K 9318CO resistor for the...

Page 175: ...nts The curve data is in resistance order The resistance and temperatures for the 9317C 9318C are in ohms up to 100 000 ohms and in kelvin up to 399 9 9317C 9318C 9 REPLACEABLE PARTS Included in this...

Page 176: ...Figure 9317C 1 Model 9317C Resistance Input Card...

Page 177: ...V C A L E N A B L E 4 D I P R A I C M I C R O P R O C E S S O R IC E E P R O M I C O P AMP I C O P T O C O U P L E R I C D A C O N V E R T E R I C A N A L O G S W I T C H I C S W I T C H E D C A P A C...

Page 178: ...Figure 9318C 1 Model 93186 Resistance Input Card...

Page 179: ...P F 5 0 0 V C A P P P 3 3 M F 1 0 0 V C A L E N A B L E 4 D I P R A I C M I C R O P R O C E S S O R I C EEPROM I C O P AMP I C O P T O C O U P L E R I C D A CONVERTER I C A N A L O G S W I T C H I C S...

Page 180: ...lectable at 300 or 1200 baud and the interface maintains EIA voltage levels for data transmission Figure 8223 2 gives a transmission format which shows the data bits framed by the start and stop synch...

Page 181: ...table Only ON s t a t e when left disconnected the 300 and 1200 baud rates have been tested and are f u l l y Data Set Ready CC indicates t o supported t h e Interface t h a t t h e host computer o r...

Page 182: ...er o r 3 Remove the four screws that can be field installed a t a later secure the calibration cover t o its date If field installation is c l i p s and remove the cover Remove r e q u i r e d u s e t...

Page 183: ...tall the calibration cover by The Output Statement commands given reversing procedure 3 i n Tables 4 9 and 4 10 w i l l result i n the requested data being output 8 Install the top panel immediately f...

Page 184: ...8223 interface a s defined i n Table 8223 6 Detection of an error does not effect t h e operation of t h e interface The software that interprets the data tries t o match the character input t o the...

Page 185: ...Handshake character length parity and stop b i t configuration are t h e same as Figure 8223 4 shows the adapter those of the 8223 Interface when cable f o r Half Duplex with shipped none of t h e swi...

Page 186: ...o n jumper pins 5 6 8 and 20 t o already takes care of some of the disable the handshake functions of interface interconnection problems the Host This is not required for t o route signals t o their...

Page 187: ...Figure 8223 1 Model 8223 RS 232C Interface Option...

Page 188: ...s c r i p t i o n MFR M F R P A R T NO 1 1 1 1 1 1 1 1 1 1 1 25 P I N D S T Y L E P L U G X S T R G E N P U R P N P N D I P S W I T C H 8 POS D I P S W I T C H 6 POS IC B A U D G E N E R A T O R R E G...

Page 189: ...nector on the 91C 93C back panel w i t h pin C being the V output and pin D being the v output 8225 3 SPECIFICATIONS Specifications for the M o d e l 8225 Analog Output are given i n Table 8225 1 8225...

Page 190: ...m the 8225 the minus lead t o pin D along the inside edge of the rear panel and solder the white 3 W i t h the load resistors or the w i r e t o MONITOR connector J3 voltage standard t o simulate Pin...

Page 191: ...Figure 8225 1 Model 8225 Analog Output Option...

Page 192: ...T MODEL 8225 ANALOG OUTPUT OPTION L S C I P a r t Number 1 0 4 5 2 4 1 0 4 4 2 5 1 0 4 0 0 1 Q t Y 1 1 1 Description ion IC P O R T EXPANDER l C 4 D I G I T D A C IC OP AMP MFR IN T BB PM I MFR P A R...

Page 193: ...The 8229 A1 through A4 channels can make before break switching action be selected directly using the and the voltage leads are SENSOR A key or included in the break before make The BO through SCAN se...

Page 194: ...or can be field installed at a Conversion specifications later date If field installation is required use the following procedure 1 Set the POWER switch to OFT and disconnect the power cord from the u...

Page 195: ...ocally from the front from Table 3 4 the Curve Number t o panel or remotely through the Position Number Correlation Table remote interfaces A complete discussion of curve selection is given i n Sectio...

Page 196: ...Figure 8229 1 Model 8229 Scanner Conversion Option...

Page 197: ...5 2 4 1 0 4 2 1 0 Q t Y 5 5 1 1 1 1 2 D e s c r i p t i o n R E L A Y D P S T D R Y R E E D RELAY DPST DRYREED C O N N E C T O R K I T 6 P O S T L O C K I N G R A H D R 26 P I N R A HEADER IC P O R T...

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Page 207: ...1 The values of heat capacity lower Cp and thermal conductivity often higher are such that much shorter thermal time constants Cp are the rule at low temperatures 2 The temperature sensor used in a fu...

Page 208: ...but is related to the maximum amount of error signal allowed before the controller is directed to produce full output power The DRC 82C requires a 0 to 8 volt signal from the deviation amplifier to d...

Page 209: ...hat to control at 20 kelvin the heating power required is 0 2 watts Assume also that 50 watts of heater power is available reducible in five steps of one decade each Figure 5 shows the control offset...

Page 210: ...ORTIONAL GAIN PLUS INTEGRAL RESET TEMPERATURE CONTROL The manual reset adjustment described above varies markedly with the temperature set point and with the often changing heater power demands of the...

Page 211: ...be 10 30 minutes In cryogenic systems it is usually less than a minute even near room temperature Consequently placement of the control sensor with respect to the heater is extremely important in the...

Page 212: ...ampling times in the half second range In the world of ovens furnaces and other large industrial processes which operate above room temperature stable control can be maintained by digital systems upda...

Page 213: ...136 Some of this material has appeared in Principles of Temperature Control available from Gulton Industries West Division Unlike reference 1 the discussion is not related to cryogenics but temperatur...

Page 214: ...8 1 12463 1 11896 1 11517 1 11212 1 10945 1 10702 1 10263 1 09864 1 09490 1 09131 1 08781 1 08436 1 08093 1 07748 1 07402 1 07053 1 06700 1 06346 1 05988 1 05629 1 05267 1 04353 1 03425 1 02482 1 0152...

Page 215: ...omial given in Equation 4 No term in Equation 1 will be greater than the absolute value of the coefficient This property makes it easy to determine the contribution of each term to the temperature cal...

Page 216: ...yogenic temperatures to guarantee that heat is not being conducted through the leads to the sensor A final thermal anchor at the sample itself is a good practice to assure thermal equilibrium between...

Page 217: ...or and mounting surface of any residual flux Next re heat the mounting surface to the melting point of the solder press the device into position and allow the sensor to warm to the melting point of th...

Page 218: ...ter is a spring loaded clamp to attach the DT 470 SD package to a flat surface It maintains pressure on the SD package as the temperature varies First remove the hold down cap which holds the three pi...

Page 219: ...sitivity by the desired temperature resolution in kelvin will give the required voltage resolution in millivolts The static impedance of the DT 470 sensor operating at a 10 microampere current is on t...

Page 220: ...etter than 50 mK Figure 1 shows the voltage variation with temperature for a typical silicon diode temperature sensor An error arises in diode thermometry if the excitation current is not a true dc cu...

Page 221: ...istic of the diode was measured at each temperature from 0 1 to 150 A Although detailed measurements were taken on only one diode other diodes were randomly selected and spot checked at all three temp...

Page 222: ...mode can be calculated from V T V I I t dt dc ac T z 1 0 cos 3 where T the period of integration of the voltmeter or approximately 2 Implied in this derivation is the assumption that is sufficiently s...

Page 223: ...of the extended calculation have not been given as the mathematics is somewhat tedious and the slight discrepancies between the small signal model and the extended model do not justify the added comp...

Page 224: ...operating current A capacitor in the range of 10 to 20 F should reduce most noise effects to an acceptable level However because the capacitor increases the time constant in the circuit a sluggish re...

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