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9118A

Users Manual

64

Calibration Procedure for Tube
Furnace



Caution

The Product can be used with or without an
isothermal block installed. Unique calibration
parameters are necessary for each mode of
operation. To prevent Product damage, before
using the Product, select the correct mode of
operation in the calibration menu (see Furnace
Setup Menu). If necessary, a calibration for the
new mode of operation may be required.

1. Connect the test equipment as shown in Figure 25.

Note

In the steps that follow, start the calibration
procedure at the lowest temperature (300

°

C) and

move up the range to 1200

°

C.

2. Set the Product to one of the setpoint temperatures in

Table 8.

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Summary of Contents for 9118A

Page 1: ... Rev 1 2 2014 2012 2014 Fluke Corporation All rights reserved Specifications are subject to change without notice All product names are trademarks of their respective companies 9118A Calibration Furnace Users Manual ...

Page 2: ...ce center to obtain return authorization information then send the product to that Service Center with a description of the problem THIS WARRANTY IS YOUR ONLY REMEDY NO OTHER WARRANTIES SUCH AS FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSED OR IMPLIED FLUKE IS NOT LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or cou...

Page 3: ...n 6 Placement 6 Dry Out Period 6 How to Move the Product 7 Product Components 7 Front Panel Controls 10 Rear Panel Connections 12 Probe Installation 17 The Isothermal Block 20 Connect to Mains Power 21 How to Turn On the Product 21 How to Turn Off the Product 22 Display 23 Setup 23 Set the Language 23 Set Display Contrast 23 ...

Page 4: ...nace Setup Menu 31 System Menu 31 Display DISP Menu 31 Communications COMM Setup Menu 31 Password Setup Menu 32 System Information INFO Menu 32 Adjust Furnace Temperature 32 Set the Furnace Temperature with a Preset 32 Set the Furnace Temperature Manually 33 How to Stop the Furnace Heat Cycle 33 Change a Preset Temperature 33 Probe Insertion 34 Cutouts 34 Soft Cutout 34 Hard Cutout 35 Chassis Ther...

Page 5: ...Conditions 61 Calibration Equipment 61 Calibration 61 Calibration Procedure for Tube Furnace 64 Calibration procedure for 9118A ITB with Isothermal Block 70 Calibration Equipment Setup 70 Stability Test 73 Accuracy Test 73 Accuracy Adjustment 74 Axial Uniformity 74 Specifications for 9118A and 9118A ITB 78 General Specifications 78 Accuracy Specifications 79 Radial Uniformity 79 Axial Uniformity 7...

Page 6: ...9118A Users Manual iv ...

Page 7: ...formity Test 67 10 Skew Correction Values 67 11 SKEW Parameter 67 12 Zone Correction Values 68 13 ZONE Parameter 68 14 Accuracy Parameter 69 15 Stability Test Data with Isothermal Block 73 16 Accuracy Parameter for Isothermal Block 74 17 Axial Uniformity Test with Isothermal Block 75 18 Skew Correction Values for Isothermal Block 76 19 SKEW Parameter for Isothermal Block 76 20 Zone Correction Valu...

Page 8: ...9118A Users Manual vi ...

Page 9: ...couple Calibration Furnace with Isothermal Block 14 7 Short Tube and Long Tube Insertion 15 8 Rear Plug Insertion 15 9 Attach the Rear Shield 16 10 Attach the Support Bracket 16 11 Front Plug Insertion 17 12 Probe Installation A 18 13 Probe Installation B 19 14 Insert Alignment 20 15 Power Up Screen 21 16 Main Screen 22 17 Preset Selection 25 18 SETPOINT Temperature 25 19 Softkey Menu Tree 27 20 M...

Page 10: ...ection 32 22 Change Preset Temperature 33 23 RS 232 Cable Connections 36 24 Tube Furnace Calibration Flow Chart 62 25 Test Equipment Connections 65 26 Calibration Equipment Setup 71 27 Calibration Procedure for Furnace with Thermo Block 72 ...

Page 11: ...40 2675 200 Japan 81 3 6714 3114 Singapore 65 6799 5566 China 86 400 810 3435 Brazil 55 11 3759 7600 Anywhere in the world 1 425 446 6110 To see product information and download the latest manual supplements visit Fluke Calibration s website at www flukecal com To register your product visit http flukecal com register product Safety Information A Warning identifies conditions and procedures that a...

Page 12: ...ins power cord is blocked Make sure that the Product is grounded before use Do not use an extension cord or adapter plug Do not use the Product if it operates incorrectly Do not use the Product if it is damaged Disable the Product if it is damaged Make sure the power cord does not touch with hot parts of the Product Make sure that the space around the Product meets minimum requirements Do not keep...

Page 13: ...to a dust free area and blow nose If symptoms continue get medical advice Caution To prevent damage to the Product Operate the Product at room temperature See specifications Keep a minimum of 45 cm clearance from the front left and right sides Keep 150 cm from the top of the Product Do not put the Product in a corner or cause a blockage behind the Product Do not use fluids to clean out the well Fl...

Page 14: ... expansion It will extend beyond the front of the furnace at high temperatures This is normal Remove the isothermal block and rear plug prior to transporting the furnace The ceramic furnace tube is fragile and can be damaged by the block To prevent the probe under test from getting stuck in the isothermal block due to different rates of thermal expansion allow a clearance of at least 0 4 mm betwee...

Page 15: ...o relevant North American Safety Standards Conforms to relevant Australian EMC standards This product complies with the WEEE Directive 2002 96 EC marking requirements The affixed label indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE Directive Annex I this product is classed as cate...

Page 16: ...he thermocouple calibration furnace with isothermal block Placement For best results choose a location to setup the Product where room temperature changes are minimum To safely remove heat put the Product in a position with a minimum of 45 cm of free air space around it Fluke Calibration recommends that you do a test for axial uniformity and adjust if necessary after the Product is installed Tempe...

Page 17: ...rear of the Product Carefully put your hands under the Product and lift in unison Caution To prevent damage to the Product remove the isothermal block and rear plug prior to transporting the furnace The ceramic furnace tube is fragile and can be damaged by the block Product Components As shown in Figure 1 the two primary components of the Product are the furnace and the controller Figures 2 and 3 ...

Page 18: ...9118A Users Manual 8 Furnace Controller gxs009 eps Figure 1 Calibration Tube Furnace ...

Page 19: ...Calibration Furnace Product Components 9 Thermal Block gxs121 eps Figure 2 Front View with Isothermal Block Rear Plug gxs133 eps Figure 3 Rear View with Isothermal Block ...

Page 20: ...18A Users Manual 10 Front Panel Controls Figure 4 shows the front panel controls of the Product and Table 2 is a list of control descriptions 1 2 3 4 6 7 8 9 5 10 gxs007 eps Figure 4 Front Panel Controls ...

Page 21: ...sed to set a value into the Product and choose a menu Sets the Product to show temperatures in Celsius or Fahrenheit Menu button shows the main menu in the display Moves through menus and adjusts numbers Exits the menu shown in the display and moves to the previous menu Furnace fuses Softkeys F1 through F4 are used to select the function that shows in the display above the softkey ...

Page 22: ... the Product and Table 3 is a list of connector descriptions RS 232 MAIN TC ZONE TC N10140 FLUKE CORPORATION 230V 50 60Hz 20A www flukecal com BEFORE OPENING DISCONNECT MAINS EARTH CONNECTION ESSENTIAL BEFORE CONNECTING SUPPLY Serial no 1 2 3 4 5 6 gxs008 eps Figure 5 Rear Panel Connections ...

Page 23: ...e Product Components 13 Table 3 Rear Panel Connections Item Description Item Description Mains power cord Main thermocouple input jack Protective Earth Terminal USB connector Zone thermocouple input jack RS 232 connector ...

Page 24: ...ool to 80 C prior to performing any maintenance or installation work on the Product To install two protection tubes and a thermocouple TC support bracket and optional isothermal block 9118A ITB 1 Remove the five socket head screws and take down the rear shield from unit See Figure 6 Rear Shield Socket Head Screw gxs124 eps Figure 6 Rear View of 9118A Thermocouple Calibration Furnace with Isotherma...

Page 25: ...position Long tube in the right side Short tube in the left side See Figure 7 Short Tube Long Tube gxs125 eps Figure 7 Short Tube and Long Tube Insertion 3 This step is only for the optional isothermal block 9118A ITB Insert the rear plug carefully into position See Figure 8 Rear Plug gxs126 eps Figure 8 Rear Plug Insertion ...

Page 26: ...e socket head screws See Figure 9 Rear Shield Socket Head Screw gxs127 eps Figure 9 Attach the Rear Shield 5 Install the thermocouple support bracket on the rear shield See Figure 10 TC Support Bracket Rear Shield gxs128 eps Figure 10 Attach the Support Bracket ...

Page 27: ...ion tube see steps 2 and 6 below make sure the end surface of the probe handle is aligned with the edge of the TC support bracket Failure to do so may cause the Product to be out of calibration Two thermocouples are used as temperature control probes These probes are put into the rear of the furnace and held in position with the TC support bracket To install the control probes 1 Put the long probe...

Page 28: ...C ZONE TC N10140 FLUKE CORPORATION 230V 50 60Hz 20A www flukecal com BEFORE OPENING DISCONNECT MAINS EARTH CONNECTION ESSENTIAL BEFORE CONNECTING SUPPLY Serial no Support Bracket Zone TC Main TC gxs131 eps Figure 12 Probe Installation A ...

Page 29: ...Calibration Furnace Product Components 19 Align these two surfaces Support Bracket Locking Screw Zone TC Handle Main TC Handle gxs132 eps Figure 13 Probe Installation B ...

Page 30: ...ther by high temperature cement The isothermal block is intended to stabilize temperature fluctuations and improve heat conduction between the furnace and the sensor under test The block is made of aluminum oxide and provides a relatively constant and accurate temperature environment for the sensor under test Four 6 7 mm diameter wells are provided To install the insert 1 Carefully remove the isot...

Page 31: ...product is grounded Be sure the power cord to the mains supply is wired correctly The power cord wires are color coded as follows Black Line White Neutral Green Ground Attach a separate safety ground wire between the Protective Earth Terminal on the rear panel of the Product and an earth ground conductor Connect the supplied ground wire between the protective earth terminal on the rear panel and e...

Page 32: ... temperature control of the furnace qxs002 bmp Figure 16 Main Screen How to Turn Off the Product Warning To avoid personal injury do not disconnect the product from mains power if the furnace temperature is greater than 80 C Caution To prevent possible damage to the Product disable the temperature control first and then turn off power To turn off the Product 1 Push 2 Push the softkey under SAVE DI...

Page 33: ...t the Language Text in the LCD display can be set to show in a different language To set the language 1 Push 2 Push the softkey below System Menu 3 Push the softkey below Display Menu 4 Push or to scroll through the languages 5 When your language is shown in the display push To toggle between the set language and English push and at the same time Set Display Contrast With the main screen shown in ...

Page 34: ...e top of the Product Notes In order for the Product to perform within specification the open ends of the furnace tube both front and rear must be filled with a temperature resistant fiber ceramic insulating material such as a Superwool Plus Blanket Fiber ceramic insulation contains a binding material that will off gas when first exposed to high temperatures producing a harmless odor Once the bindi...

Page 35: ...SET in the display As shown in Figure 17 the number 1 is highlighted to the right of PRESET gxs111 eps Figure 17 Preset Selection 3 To change the preset number push and to scroll through the preset numbers 4 Push when the correct preset number is shown in the display This is the selection method for value lists Set Number Value An example where you set a number is where you set the setpoint temper...

Page 36: ...ts are set push Softkey Menus The softkeys are identified in Table 2 The softkeys are used with the front panel key The functions of the four softkeys are identified by label information shown directly above each key A group of softkey labels is a menu A group of connected menus makes a menu tree Figure 19 shows the menu tree structure for the Product Figure 20 shows each menu in the menu tree ...

Page 37: ...Calibration Furnace Operation 27 A MENU B F E C D gxs003 eps Figure 19 Softkey Menu Tree ...

Page 38: ...oak time set of cycles set direction To D F1 F2 F3 F4 SET POINTS D Set up to 8 setpoints F1 F2 F3 F4 CAL POINTS PID SETUP E F1 F2 F3 F4 DISPLAY MENU COMM SETUP PASSWORD SYSTEM INFO F Set language set decimal set audio Set baud rate set linefeed Set password set protection View model serial number firmware version and cal date Set calibration parameter Set control parameter Set work mode FURNACE SE...

Page 39: ... the Product shows CUTOUT in the display turns off power to the heater and sets the Product to cool The Product stays in the cutout condition until the temperature drops below the cutout temperature and the Product is reset by the operator To reset the Product after the temperature drops below the cutout value 1 Push 2 Push If it is necessary to change the setpoint temperature use the cursor butto...

Page 40: ...eters must be correct for the Product to operate correctly The CALIB menu lets you get access to the calibration points constants and the controller parameters Calibration CAL Points Menu When you push the CAL POINTS softkey the product prompts you for a numeric password You must know the password before you can change a calibration point There are 12 calibration points Zone 1 300 Skew 1 300 Temp ...

Page 41: ...sh to save the selected mode Caution The Product can be used with or without an isothermal block installed To prevent damage to the Product unique calibration parameters are necessary for each mode of operation Before Product use select the appropriate mode of operation in the calibration menu When the mode of operation is changed calibration for the new mode of operation may be required System Me...

Page 42: ... CALIB and PROG menus are password protected System Information INFO Menu The SYSTEM INFO menu is a view only menu This menu shows the Product model number serial number firmware version and the calibration date Adjust Furnace Temperature There are two methods to adjust the furnace temperature You can recall a preset temperature or set a temperature setpoint manually The term setpoint refers to th...

Page 43: ...ure is the measured temperature in the furnace and lags the setpoint temperature The lag interval is the time necessary to increase or decrease the temperature of the center of the furnace How to Stop the Furnace Heat Cycle To stop the furnace heat cycle 1 With the main screen in the display push 2 Push the softkey below SAVE DISABLE The heat or cool procedure stops and the Product is set to stand...

Page 44: ... the full depth of the holes in the isothermal block or the center of the furnace tube if the isothermal block is not installed Variations in equipment probe dimension and configuration can have an effect on temperature stability and gradients Note A solid unstirred mass as in a furnace can have heat loss through the probe stem The loss changes between probes and temperatures Cutouts The Product h...

Page 45: ...he Fan Fault Cutout turns off power to the furnace when a fan fails The furnace stays off until the fan is repaired TC or Heater Fault Cutout The TC Fault Cutout turns off power to the furnace when the product senses there is a problem with a control probe or a heater This protects the Product when a control probe comes out of its socket or a wire in one of the probes opens This cutout also turns ...

Page 46: ...onnector on the PC Instrument Connector DB 9 Pin 1 NC 2 RxD 3 TxD 4 ND 5 GND 6 NC 7 RTS 8 CTS 9 NC Computer DTE Connector DB 9 Pin 1 DCD 2 RxD 3 TxD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 NC Instrument Connector DB 9 Pin 1 NC 2 RxD 3 TxD 4 ND 5 GND 6 NC 7 RTS 8 CTS 9 NC Computer DTE Connector DB 25 Pin 1 DCD 2 RxD 3 TxD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 NC gxs005 eps Figure 23 RS 232 Cable Connections To u...

Page 47: ...minator is a character sent by the PC that identifies the end of a string When the Product receives an input terminator it does the command preceding the terminator character Applicable terminators are LF Line Feed CR Carriage Return CR LF Carriage Return Line Feed In some instances a terminator is automatically sent at the end of an output string from the PC SCPI Commands This section gives all S...

Page 48: ...SENS CAL PAR2 Unconditional R W TEMP 3 SOUR SENS CAL PAR3 Unconditional R W TEMP 4 SOUR SENS CAL PAR4 Unconditional R W GRAD 1 SOUR SENS CAL ZONE1 Unconditional R W GRAD 2 SOUR SENS CAL ZONE2 Unconditional R W GRAD 3 SOUR SENS CAL ZONE3 Unconditional R W GRAD 4 SOUR SENS CAL ZONE4 Unconditional R W SKEW 1 SOUR SENS CAL SKEW1 Unconditional R W SKEW 2 SOUR SENS CAL SKEW2 Unconditional R W SKEW 3 SOU...

Page 49: ...am Run TEST STATUS PROG STAT N A R W Program Setup TEST ID PROG IDEN N A R W Ramp Soak RAMP SOAK SETUP PROG SEQ CAT N A R SETPOINT n PROG SEQ PAR SPOn Conditional R W SOAK TIME PROG SEQ PAR DWEL Conditional R W SETPOINTS PROG SEQ PAR POIN Conditional R W NO CYCLES PROG SEQ PAR CYCL Conditional R W DIRECTION PROG SEQ PAR DIR Conditional R W SETPOINT 1 SOUR LIST SPO1 N A R W SETPOINT 2 SOUR LIST SPO...

Page 50: ...D N A R W LINEFEED SYST COMM SER LIN N A R W Setup Display LANGUAGE SYST LANG N A R W DECIMAL SYST DEC FORM N A R W KEY AUDIO SYST BEEP KEYB N A R W Setup Password PASSWORD Disable SYST PASS CDIS Unconditional W PASSWORD Enable SYST PASS CEN Unconditional W Status none SYST PASS CEN STAT N A R USER PASSWORD SYST PASS NEW Unconditional W PROTECTION SYST PASS PROT N A R W Setup Date Time DATE SYST D...

Page 51: ... R all IDN N A R none CLS N A W none OPT N A R FW VER SYST CODE VERS N A R Temperature Cutout HARD CUTOUT SOUR PROT HCUT N A R SOFT CUTOUT SOUR PROT SCUT LEV Conditional R W Reset none SOUR PROT CLEA N A W Trip State none SOUR PROT TRIP N A R Temperature Setup SCAN RATE SOUR RATE N A R W Monitor Temperature CJC Temperature SOUR SENS DATA N A R Monitor TC SOUR SENS DATA N A R ...

Page 52: ... lowercase letters are optional The is used as a separator between optional parameter values in a command All commands used with the Product are sequential Each command is completed before a subsequent command is processed All commands that are not recognized by the Product cause an error message to show in the error queue A command can be rejected with an error if the command is misspelled has in...

Page 53: ...UTP STAT Response 0 Main heat output is off 1 on OUTP n DATA Gets the duty cycle of a heater duty cycle in percent Parameters n 1 to 3 1 main heater output default 2 zone heater output 3 balance heater output Example OUTP DATA Response 18 0 Main heater output duty cycle is 18 Example OUTP2 DATA Response 57 0 Zone heater output duty cycle is 57 0 PROGram IDEN quoted string Sets the program identifi...

Page 54: ...n the ramp soak test Default 8 CYCL 1 to 999 times the ramp soak test is to be repeated Default 1 DIR 0 or 1 Sets the direction of how the setpoints will be done in the test See DIRECTION in the Ramp Soak Menu section 0 Up 1 Up then Down Default 0 Example To make a ramp soak test with 3 setpoint temperatures of 450 1145 and 825 that soak for 20 minutes PROG SEQ PAR POIN 3 Sets three temperature se...

Page 55: ...to be repeated DIR Gets the direction of how the setpoints will be done in the test See DIRECTION in the Ramp Soak Menu section Example PROG SEQ PAR SPO2 Gets the setpoint temperature for setpoint number 2 PROGram STATus n Sets the execution state for the selected program Parameters n RUN or 1 Start the selected program OFF or 0 Stop the selected program Default Example PROG STAT 1 Starts the sele...

Page 56: ...vative time in seconds Example SOUR LCON DER Response 1 5 The main zone derivative time is 1 5 seconds SOURce LCON INT n Sets the main control loop integral time in seconds Note This command has password protection Use the SYST PASS CEN command first before you use this command to set this value Parameter n 10 0 to 999 9 seconds Example SOUR LCON INIT 10 SOURce LCON INT Gets the main control loop ...

Page 57: ...l loop proportional band is 1 5 C SOURce LIST SPO i n Sets the temperature value for a preset setpoint in the RAMP SOAK menu Parameters i Setpoint number 1 to 8 n Setpoint temperature Example SOUR LIST SPO6 700 00 Sets setpoint number 6 to 700 00 degrees SOURce LIST SPO i Gets the temperature value for a preset setpoint in the RAMP SOAK menu Example SOUR LIST SPO4 Response 400 0 The setpoint tempe...

Page 58: ... cutout temperature Note This command has password protection Use the SYST PASS CEN command first before you use this command to set this value Parameters n 25 00 to 1240 00 degrees Example SOUR PROT SCUT LEV 450 Sets the soft cutout to 450 degrees SOURce PROT SCUT LEV Gets the soft cutout temperature Example SOUR PROT SCUT LEV Response 1000 Soft cutout temperature is set to 1000 degrees SOURce PR...

Page 59: ... to 0 531 degrees per minute The response to this command starts out high and decreases as the temperature gets nearer to the setpoint temperature SOURce SENS CAL ZONE x n Sets the axial gradient adjustment parameter Note This command has password protection Use the SYST PASS CEN command first before you use this command to set this value Parameters x 1 to 4 1 ZONE1 2 ZONE2 3 ZONE3 4 ZONE4 n 10 0 ...

Page 60: ...ntrol temperature calibration parameter Example SOUR SENS CAL PAR2 Response 0 0 The calibration parameter 2 is set to 0 0 SOURce SENS CAL TEMP n Gets the temperature of a calibration parameter This temperature is fixed and is in degrees Celsius Parameter n 1 to 3 1 TEMP1 2 TEMP2 3 TEMP3 Default 1 Example SOUR SENS CAL TEMP1 Response 300 The temperature value of the TEMP1 parameter is 300 C SOURce ...

Page 61: ...out the isothermal block inside 1 determines if the furnace will work with the isothermal block inside Example SYST CONF BLC 1 Determines if the furnace is to work with the isothermal block inside SYST CONF BLC Gets the furnace work mode with the isothermal block inside or without the isothermal block inside Example SYST CONF BLC Response 0 The furnace works without the isothermal block inside SOU...

Page 62: ...e SOUR SENS DATA CJC Response 36 12 The CJC sensor is at 36 12 C SOURce SPO n Sets the control setpoint Parameters n 300 00 to 1200 00 degrees Celsius Default 300 00 Note This command has password protection Use the SYST PASS CEN command first before you use this command to set this value Example SOUR SPO 400 00 Sets the setpoint temperature to 400 00 degrees SOURce SPO Gets the control setpoint E...

Page 63: ...e Example SYST CODE VERS Response 1 10 The version of firmware is 1 10 SYSTem COMM SER BAUD baud Sets the baud rate of the serial interface Parameters baud 1200 2400 4800 9600 19200 38400 Default 2400 Example SYST COMM BAUD 2400 Sets the baud rate of the serial interface to 2400 SYSTem COMM SER BAUD Gets the baud rate of the serial interface Example SYST COMM BAUD Response 1200 The baud rate of th...

Page 64: ...acter is not used at the end of data form the serial interface SYSTem DATE date Sets the system date Parameters date yyyy mm dd yyyy four digit number for year mm two digit number for month dd two digit number for day Example SYST DATE 2012 05 24 Sets the system date to May 24 2012 SYSTem DATE Gets the system date Example SYST DATE Response 2012 11 30 The system date is set to November 30 2012 SYS...

Page 65: ...as password protection Use the SYST PASS CEN command first before you use this command to set this value Parameters n 1 Lock keypad 0 Unlock keypad Default Example SYST KLOC 1 Locks the keyboard SYSTem KLOC Gets the status of the front panel keypad lock Example SYST KLOC Response 0 Keypad is unlocked SYSTem LANG lang Sets the display language Parameters lang 1 English 7 Chinese Example SYST LANG 7...

Page 66: ...234 is used Example SYST PASS CEN 1045 Disables password protection on commands where a password is necessary to set them Password protection remains disabled until SYST PASS CDIS is used or you turn off power to the Product This command has no response SYSTem PASS CEN STAT Gets the access state of password protected commands Example SYST PASS CEN STAT Response 0 Cannot change commands with passwo...

Page 67: ...00 to 9999 DEF Sets the password to 1234 Example SYST PASS NEW 1045 Sets the password to 1045 This command has no response SYSTem PASS PROT n Sets the password protection level Parameters n 0 Low 1 High Example SYST PASS PROT 1 Sets the password protection level to high SYST PASS PROT Gets the password protection level Example SYST PASS PROT Response 0 The password protection level is low ...

Page 68: ...emperature units Parameters n C Centigrade Default F Fahrenheit Example UNIT TEMP C Sets the display temperature units to Centigrade UNIT TEMP Gets the display temperature units Example UNIT TEMP Response F Display temperature units is set to Fahrenheit ...

Page 69: ...perature cutout test a minimum of one time in a 6 month period Make sure the well is clean and clear of unwanted material Use the National Safety Council decontamination steps when hazardous material is spilt on or in the Product Never introduce any foreign material into the probe hole of the Isothermal Block Fluids etc can leak into the instrument causing damage Do not lift or move this instrumen...

Page 70: ...detergent Make sure liquids do not go into the Product Note Before you clean or decontaminate the Product with a procedure not recommended by Fluke Calibration speak with a service center associate for more information Furnace Calibration The furnace calibration procedure in this manual is a general guideline Each calibration laboratory must write a procedure for their calibration equipment and qu...

Page 71: ... Table 6 is a list of equipment necessary for a furnace calibration Table 6 Calibration Equipment Equipment Specifications Ice Point 0 05 C accuracy 0 02 C stability Thermocouple Readout 0 25 C accuracy Thermocouples S or R type 1 C 1200 C Calibration Product calibration uses a stability test uniformity test and adjustment followed by an accuracy test and adjustment All tests and adjustments are d...

Page 72: ...lculate the gradient Set the gradient align parameter Calculate the accuracy Set the accuracy parameter Take As Found Data for stability Take As Found Data for Axial Gradient Take As Found Data for Accuracy Finished Calculate the uniformity Test the stabiltiy All Calibration Point Finished Yes No Fail Fail Fail Fail Fail Fail Fail Fail Pass Pass Pass Pass Pass Pass Take As Found Data for stability...

Page 73: ...0 1000 1200 As Found data use data for initial uniformity adjustment 3 Axial Uniformity Adjustment 300 700 1000 1200 Adjust the zone and skew parameters to set axial uniformity to the specification 4 Axial Uniformity Test 300 700 1000 1200 As Left data to verify the temperature uniformity 5 Accuracy Test 300 700 1000 1200 As Found test data use to adjust the accuracy 6 Accuracy Adjustment 300 700 ...

Page 74: ...damage before using the Product select the correct mode of operation in the calibration menu see Furnace Setup Menu If necessary a calibration for the new mode of operation may be required 1 Connect the test equipment as shown in Figure 25 Note In the steps that follow start the calibration procedure at the lowest temperature 300 C and move up the range to 1200 C 2 Set the Product to one of the se...

Page 75: ...Calibration Furnace Calibration Procedure for Tube Furnace 65 TC1 Ice Point TC2 gxs120 eps Figure 25 Test Equipment Connections ...

Page 76: ...olumn of Table 8 Table 8 Stability Test Data Setpoint C Stabilization Time min Samples Stability 2σ Limit C 300 60 30 0 2 700 60 30 0 2 1000 60 30 0 2 1200 60 30 0 2 If the test fails do steps 6 through 8 again If it fails a second time repair the instability 9 Record the result Axial Uniformity The steps that follow make up the axial uniformity test and the formulae to calculate the SKEW and ZONE...

Page 77: ... and 30 mm 16 Calculate the slope value with Slope Gradient 30 Gradient 30 17 Calculate the SKEW value with SKEWn new SKEWn old A x Slope 18 Table 10 shows the value for A at each of the temperature setpoints Table 10 Skew Correction Values Setpoint C A Value 300 1 02 700 1 35 1000 4 67 1200 5 30 19 Put the SKEWn new value into the Product through the front panel or RS 232 port Table 11 is a list ...

Page 78: ...lue 300 1 5 700 2 4 1000 3 3 1200 4 2 24 Put the ZONEn new value into the Product through the front panel or RS 232 port Table 13 a list of temperature setpoints and the RS 232 command and front panel name for the ZONE parameters Table 13 ZONE Parameter Setpoint C Parameter RS 232 Command Front Panel 300 SOUR SENS CAL ZONE1 ZONE 300 700 SOUR SENS CAL ZONE2 ZONE 700 1000 SOUR SENS CAL ZONE3 ZONE 10...

Page 79: ...acy Adjustment To do an accuracy adjustment 1 Calculate the new TEMPn parameter with Tempn new Tempn old Accuracy 2 Put the TEMPn new value into the Product through the front panel or RS 232 port Table 14 is a list of temperature setpoints and the RS 232 command and front panel name for the TEMP parameters Table 14 Accuracy Parameter Setpoint C Parameter RS 232 Command Front Panel 300 SOUR SENS CA...

Page 80: ...he mode of operation is changed a calibration for the new mode of operation may be required Figure 27 shows a brief overview of the calibration procedure with a thermo block Calibration Equipment Setup 1 Mark scales on TC1 and TC2 as shown in Figure 26 Scale interval is 10 mm 2 Connect equipment as shown in Figure 25 3 Put TC1 and TC2 in the position of 0 and 60 as shown in Figure 26 Note In the s...

Page 81: ...bration Procedure for Tube Furnace 71 365 50 mm 14 39 inch 305 50 mm 12 03 inch TC1 Front Plug Guide Tube Insulator Isothermal Block TC2 0 10 20 30 40 50 60 0 10 20 30 40 50 60 gxs134 eps Figure 26 Calibration Equipment Setup ...

Page 82: ...r Calculate the Zone Set the Zone align parameter Take As Found Data for stability Take As Found axial uniformity Finished Calculate the accuracy Test the stabiltiy All Calibration Point Finished Yes Fail Fail Fail Fail Fail Pass No Pass Pass Take As Found Data for stability Pass Fail Slope 0 1 C Pass Fail Pass Fail Pass Fail Set the accuracy align parameter Pass Fail Take As Found Data for accura...

Page 83: ...ime min Samples Stability 2σ Limit C 300 60 30 0 1 700 60 30 0 1 1000 60 30 0 1 1200 60 30 0 1 If the test fails do steps 4 through 6 again If it fails a second time repair the instability 7 Record the result After the stability of the set temperature is verified it is recommended that you do the accuracy test that follows Accuracy Test Note When you do an accuracy test make sure TC1 is at 0 mm in...

Page 84: ...he Product soak for 60 minutes 4 Do steps 1 through 6 of the Accuracy Test After the accuracy is verified or adjusted it is recommended that you do the axial uniformity verification and adjustment that follows Axial Uniformity The steps that follow make up the axial uniformity test and the formulae to calculate the SKEW and ZONE parameter values The new values are put into the Product to correct f...

Page 85: ...le 17 and record it in the table Difference x TC2 x TC1 x TC2 0 TC1 0 X 0 10 60mm Differencep p Max Difference 0 Difference 10 Difference 60 Min Difference 0 Difference 10 Difference 60 Note If the Differencep p already meets the axial uniformity tolerances it is not necessary to make further adjustments to the SKEW and ZONE calibration values 6 Calculate a gradient value for the 0 mm and 60 mm po...

Page 86: ...through 5 again to make sure axial uniformity is equal to or less than the specification or requirement Note If the axial uniformity already meets the specification or requirement it is not necessary to continue with the following zone adjustment It is recommended that you do steps 6 through 12 again if the result cannot meet the specification or the necessary requirement If the slope is 0 1 C and...

Page 87: ...KEW 300 700 SOUR SENS CAL ZONE 2 SKEW 700 1000 SOUR SENS CAL ZONE 3 SKEW 1000 1200 SOUR SENS CAL ZONE 4 SKEW 1200 16 Let the Product soak for 60 minutes for the calibration points of 700 C 1000 C and 1200 C Let the Product soak for 120 minutes for calibration points of 300 C after you put in the ZONE value 17 Do steps 1 through 5 again to make sure axial uniformity is equal to or less than the spe...

Page 88: ...230 V ac Over current Protection System 20 A 250 V resettable circuit breaker Main Heater Fuse F 12 A 250 V Zone Heater Fuse F 12 A 250 V Computer Interface RS 232 and USB Display Monochrome LCD C or F user selectable Display Resolution 0 1 C or F Size H x W x L 400 mm x 337 mm x 700 mm Net Weight 29 kg without isothermal block Isothermal Block optional Isothermal Block Construction Alumina Block ...

Page 89: ...ce has been properly calibrated for the desired mode of operation Furnace Temperature Range 300 C to 1200 C Set Point Accuracy 5 C Radial Uniformity Temperature 9118A 14 mm from geometry central point 9118A ITB hole to hole 300 C 0 5 C 0 1 C 700 C 0 20 C 1200 C 0 25 C Axial Uniformity Temperature 9118A 30 mm axial length from geometry central point 9118A ITB at 60 mm from full immersion Full Range...

Page 90: ...9118A Users Manual 80 Heating Time 23 C to 1200 C 9118A 40 minutes 9118A ITB 45 minutes Cooling Time 1200 C to 300 C 9118A 180 minutes 9118A ITB 200 minutes ...

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