Extech Instruments 421509 User's Manual
Contents
1. Shift Mode The operating functions for the shift mode are printed in yellow on the buttons When in normal mode push the SHIFT button to switch to shift mode The word Shift will be displayed in the lower right corner of the LCD To switch back to normal mode press the SHIFT button again C F Key Readings can be displayed in degrees Celsius C or degrees Fahrenheit F Note that the meter remembers the unit of measure when it is turned off Press the C F key to change the temperature units SAVE Button The save function stores T1 and T2 measurements in up to 128 locations in non volatile memory Press the SAVE button to store the current reading the word SAVE is momentarily displayed on the bottom right LCD to indicate that the data has been saved Data can be read using the read function in normal mode LOG Button The data log function continuously records measurement data using the stored sampling interval The time interval is set using the interval time setup function INTV in the setup mode Press the LOG button to activate the log function LOG will be displayed and MEM will continuously flash on the LCD There are 16 groups that are used for storing the log data and each group has 64 data locations If the current session exceeds 64 locations the log function will automatically use the next group to continue storing the data A maximum of 1024 locations can be saved in one log session Press t2. 2004 09 08 Ji joo 76 3 je k 754 e k 2004 09 08 00 34 46 polonio fan s oN for 760 e kK 75 1 IF k 2o08 oosa p 001 76 0 74 7 F 2004 09 08 4 2004 09 08 oor 760 iF k 746 F K 2004 09 08 _ oo as 01 76 0 IF k_ 74 5 e k 2004 09 08 in 001 75 9 74 4 iE 2004 09 08 00 35 11 l ih i 4 t 00 34 36 joo 75 8 74 3 F 2004 09 08 00 35 16 Jor 78 k 743 E k 2004 09 08 ooi 76 0 e k 7 E k 2004 09 08 E 001 75 9 i k 2004 09 08 Joo 75 8 F k 74 F k 2004 09 08 _ 00 35 36 12 00 05 oo 75 9 k 74 F k 2004 09 08 oo as 41 Joor 76 0 IF k 74 2 E k 2004 09 08 _ 00 35 46 oo1 76 0 Ik 2004 09 08 00 35 51 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com
3. Test Equipment User s Guide Ea Depot EXTECH a0 67 2491 INSTRUMENTS Dual Input 3 Display Thermometer Datalogger Model 421509 e Accepts J K T E R S amp N thermocouples e Internal Memory stores up to 16 data sets with 1024 maximum data capacity e Backlit Electro luminescent LCD Display e T1 T2 T1 T2 displays e MIN MAX AVG Record Recall e Selectable temperature units C F e Data Hold Relative Mode Elapsed Timer e Bi directional RS 232 PC Interface Introduction Congratulations on your purchase of Extech s Dual Input 3 Display Hand Held Digital Thermometer Datalogger This portable digital thermometer is designed to use external K J T E R S N type thermocouples K type supplied Temperature indication follows Reference Temperature Voltage Tables N I S T Monograph 175 Revised to ITS 90 It features an adjustable T C offset and an RS 232 interface for uploading data to a PC using optional software and cable This professional meter with proper care will provide years of safe reliable service Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Specifications General Specifications Display 4 1 2 digit 19 999 3 Display LCD with EL Backlighting Input Protection 24VDC or 24VAC rms maximum input on any combination of inputs Max voltage between T1 and T2 inputs is 1V Reading rate 2 5 times per second Input co
4. displayed in the bottom left display The location of the read pointer within the saved data table will be displayed 3 Press the A3 or Y6 button to display the next data location Press the A 2 or W5 button to increment the data location by ten 4 Press the overlay ESC button to deactivate the read data function LOG READ Button The read log function is used for reading logged data It works in conjunction with the Log function in Shift Mode 1 Press the LOG READ button to activate the read log function The word READ will be displayed in the lower right display 2 Press the overlay SECOND button to rotate through the following display menus T1 T2 GRP and T1 and T2 displays the T1 or T2 saved value GRP displays the current group number and displays the current location of the read pointer within a selected group 3 The arrow buttons on the overlay are used for scrolling through the saved data Press the 43 or Y 6 buttons to display the next data location or group Press the 2 or W 5 buttons to increment to the next data or group location by ten To navigate around the logged data and groups press the overlay SECOND button until GRP appears in the display Select the group using the arrow buttons then press the SECOND button again until the sign is displayed The location of the read pointer will be displayed Use the arrow keys to scroll thr
5. PC Connect the Optical Interface connector to the 421509 Thermometer The IR2 label should be facing up Connect the 9 pin female connector to the 9 pin serial PC port COM1 4 PC Requirements e 486 33 IBM compatible PC or better e One CD ROM drive e Available serial port e Windows 95 98 2000 NT ME XP Operating System Installing the Windows Application Program 1 Place the supplied software CD in the PC CD ROM drive and run setup exe 2 Change the path if necessary or choose the Finish button to install the program to its default location 3 Launch the program by double clicking the program file in the location where it was saved during installation 4 Remember not to run the supplied software until the meter is properly connected to the PC as described earlier Software Control Panel Description 421509 File Window T1 INPUT J remput_ REcoRD_ Button Description T1 INPUT Open the T1 input control window to activate function T2 INPUT Open the T2 input control window to activate function T1 T2 Open the T1 T2 control window to activate function RECORD Open the recording control window to activate data acquisition READ DATA Downloads the logged data from the meter START Press the START button to activate the meter s serial port output and then the auto power off function will be disabled STOP Press the STOP button to stop the meter s serial port output and then the auto power off function w
6. f the 11 20 51 T1 746FK_ T2745FK_ T1 T2 01 F lines from 200 to 65535 41 20 52 T1 849FK T2 74 5FK T1 T210 4F 11 20 53 T1 849FK T274 6FK T1 T210 3F CLR Clears the screen 11 20 54 TH856FK T2774FK T1 12 8 2F REC Starts data 14 20 55 T1 834FK T2854FK T1 12 20F iciti 11 20 56 TA 878FK T2827FK 11 12 51 F acquisition Press OFF to 11 20 57 T1 84 0FK 12 843FK T1 T2 0 3F stop recording 1414 20 58 T1 83 0FK 12 84 3FK 11 12 1 3F 11 20 59 T1 83 0FK T2816FK T1 T214F 11 21 00 T1 81 6FK T280 9FK 11 12 O07 F 11 21 01 71 81 2FK T2806FK 11 12 O 6F 11 21 02 T1 80 8FK T280 3FK T1 T2 0 5F 11 21 03 T1 79 9FK_ T2796FK T1 T2 0 3F Importing Data from the Meter 1 Click the READ DATA button 2 The window will open and the data stored in the meter s memory will automatically download to the PC A red bar at the bottom of the screen will indicate the download progress 3 After the download is complete select the Log Data tab to open the log window to retrieve datalogged measurements or Saved Data to open the save window for manually stored data retrieval 4 Click the Query button to open the data 5 Switch from Table to Diagram view if desired 6 Click on the File menu to save the data as text or xls Excel format Read Saved Log Data File Operate Window SavedData Log Data Table C J Diagram qh w m Unit Type 12 unit Type pate t r Sat l Group Index oor 76 8 76 6 e k 2004 09 08 A joor 76 7 je k 76 4 F k
7. fset Adjustment To change the offset for T1 the main display input should be set to T1 Set the main display to T2 for adjusting the offset to T2 Press the OFS button to enter the offset adjustment mode CAL will be displayed on the top right of the LCD and the main display will blink showing the previous setting Press the number buttons printed in white on the overlay to change the offset The resolution is 0 1 Use the button to set a negative value Press the ENTER button to confirm MAX 1999 9 C F System Time Setting To set or change the system time press the TIME button in Setup Mode The time and date in the bottom right display will blink Enter from left to right YY MM DD and HH MM SS Press the number buttons printed in white on the overlay to change the settings Press the ENTER button to confirm Exit this function by pressing the ESC button 8 Model 421509 Version1 1 09 04 RS 232 PC Interface The Model 421509 Thermometer is supplied with a sophisticated Windows software package on disk A communications cable meter to PC is also supplied The program allows the user to operate the meter remotely and view the readings from all three LCD fields on the PC monitor The software also permits measurement data to be stored as text files on a PC The data files can then be exported to spreadsheet or other programs for further manipulation graphing sorting filing etc Connecting the Meter to a
8. he LOG button again to exit the data log function CLR Button The CLR function clears all the saved and logged data in memory When the CLR button is pressed MEM is displayed and CLR flashes on the upper right of the LCD Press the overlay ENTER button to clear all saved and logged data or the ESC button to exit the function REL Button Press the REL key to enter the Relative mode The meter will store the displayed reading main display as a reference value and display REL All subsequent readings will now display the measured value less the stored reference value Press the REL key again to exit the relative mode APO Button Press the APO button to enable disable auto power off APO is displayed on the upper left of the LCD When enabled it will automatically turn the thermometer off if the key switch is inactive for the preset auto power off time default time for APO is 5 minutes The time can be programmed in Setup Mode Press the Power button to resume operation Type Button Main display Press the TYPE button to select the thermocouple type K J T E R S or N in the main display If the inputs of the main and second display are the same then pressing this button will change the thermocouple type for both displays The selected type becomes the default selection Type Button Second display Press the TYPE button to select the thermocouple type K J T E R S or N in the second d
9. ill be enabled WORKING The WORKING sign will blink when the meter is communicating with the PC otherwise RS 232ERR will be displayed COM PORT Select serial port COM1 to 4 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Operation 1 Select the correct COM port 2 Press the START button 3 Press the T1 INPUT T2 INPUT or T1 T2 button to open the control window File Operate Window T 1 READING itt 10000 0 J E Button Description MAX MIN Activate Max Min reading with time AVG Activate Average reading measurement REL Activate Relative mode HI LO Activate Hi Lo limit comparative mode The limit will also be visible on the graphical display as red HI and blue LO horizontal lines The display value will blink between red and blue when the input temperature value exceeds the LO value TYPE Select the K J T E R S N type thermocouple GRAPH Open the graph sub window T1 CHART File Operate Window 10 Model 421509 Version 1 1 09 04 Record Function Data Acquisition Button Description FILE NAME Select Default or User ead TETE Name for Data Acquisition USER FILE Saved in xls format oe FILE SJTEWP ts Tel 11 TA745FK T274 5FK 11 12 0 0F INTV Sample rate from 1 to 11 20 48 T1745FK T274 5FK 11 12 0 0F 65535 11 20 49 T 74 6FK T274 5FK T1 12 04F 11 20 50 T 74 8FK T274SFK T1 T2 01 F LIST Enter the number o
10. ion Max insulation temp 500 F 260 C Thermocouples Accuracy 4 F 2 2 C or 0 75 of rdg whichever is greater from 32 to 1472 F 0 to 800 C R S types It I i I t I t Ht I 2 Model 421509 Version 1 1 09 04 Safety Information Please read the safety and operational instructions before using this device WARNING To avoid electrical shock do not use this instrument when working near voltages over 24V AC DC WARNING To avoid damage or burns do not make temperature measurement in microwave ovens CAUTION Repeated flexing can break the thermocouple leads To prolong lead life avoid sharp bends in the leads especially near the connector This symbol on the instrument indicates that the operator must refer to an explanation in this manual Meter Description 1 Optical RS 232 Interface 2 Thermocouple inputs 3 Mini DIN I O port 4 Triple LCD Display 5 Keypad Overlay 6 Keypad 7 Protective rubber holster 8 Battery compartment on rear 9 12VDC Adaptor input Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Operation There are three operation modes Normal Shift and Setup mode Normal Mode This is the default mode The operating functions for normal mode are printed on the face of each button in white The following functions can only be used in Normal Mode Power Button The P
11. isplay If the inputs of the main and second display are the same then pressing this button will change the thermocouple type for both displays The selected type becomes the default selection 6 Model 421509 Version1 1 09 04 Setup Mode The operating functions for the setup mode are printed between the bracket signs on each button Press the SET button in normal mode to switch to the setup mode The indicator SET will be shown on the left side of the display Press SET again to return to normal mode Hi Lo Limit Setup In Setup Mode press the Limits button to enter the Hi Lo setup function The LIMIT HI and main display will blink on the LCD and the previous settings will be displayed Press the number buttons printed in white on the overlay to set Hi and Lo limit values The button same as the ESC overlay can be used to set a negative value Setting is from left to right digit Press the ENTER button to confirm each setting Mini DIN Hi Lo Alarm Output The alarm output jack refer to Figure 1 located on the top of the meter can be used to power external warning or switching devices when programmed Hi Lo alarm limits are reached To enable this function an external power source 5 to 30VDC 5mA max must be used to supply power to the connected device Connect the power source 5 30VDC between pin 5 and pin 6 of the connector refer to Figure 2 For the Hi limit output connect a de
12. nnectors Accepts standard sub miniature thermocouple connectors Alarm Output 6 pin mini DIN max 5nA 5 to 30VDC external source 32 to 122 F 0 to 50 C less than 80 RH 4 to 140 F 20 to 60 C less than 70 RH 7 5 x 3 6 x 2 1 192 x 91 x 52 5mm 11 70z 365g Range Specifications Thermocouple Range Resolution K type 328 to 2501 F 200 to 1372 C 0 1 F 0 1 C 1 F gt 2000 J type 346 to 2192 F 210 to 1200 C 0 1 F 0 1 C 1 F gt 2000 T type 328 to 752 F 200 to 400 C 0 1 F 0 1 C E type 346 to 1832 F 210 to 1000 C 0 1 F 0 1 C R type 32 to 3212 F 0 to 1767 C 1 F 1 C S type 32 to 3212 F 0 to 1767 C 1 F 1 C N type 58 to 2372 F 50 to 1300 C 0 1 F 0 1 C Accuracy Specifications Thermocouple Accuracy K J T Etypes 0 05 rdg 0 6 F 0 05 rdg 1 4 F 0 05 rdg 0 3 C 50 C to 1370 C 0 05 rdg 0 7 C 50 F to 210 C 0 05 rdg 1 6 F 58 F to 32 F 0 05 rdg 0 8 F 32 F to 2372 F 58 F to 2501 F 58 F to 346 F N type 0 05 rdg 0 8 C 50 C to 0 C 0 05 rdg 0 4 C 0 F to 1300 C 0 05 rdg 4 0 F 32 F to 3212 F 0 05 rdg 2 0 C 0 C to 1767 C Temperature 0 1 multiplied by the accuracy per C from 0 C to 18 C and 28 C to Coefficient 50 C 32 F to 64 F and 82 F to 122 F Supplied 4 type K with teflon insulat
13. ough the data 4 Press the overlay ESC button to deactivate the read log data function 4 Model 421509 Version1 1 09 04 HOLD Mode Main Display only Press the HOLD button to enter the Data Hold mode the HOLD annunciator will display When HOLD is selected the thermometer freezes the reading on the main display only Press the HOLD button again to return to the normal measurement mode MIN MAX with Time Record Mode Main Display only Note Auto Power OFF and several keys Power C F REL SET HI LO TYPE and T1 T2 T1 T2 are defeated in this mode Press MIN MAX to enter the MIN MAX recording mode the meter will begin keeping track of the highest MAX lowest MIN MAX MIN and Average AVG readings There are four displays listed below for this mode Use the MIN MAX key to scroll through all four 1 When the REC icon is on the display top the meter is displaying measurements normally while it is recording 2 With the REC MAX icon on the display the meter continues taking measurements but the main display shows only the highest MAX reading recorded The Elapsed Time in hours minutes and seconds is shown in the lower right LCD field The Timer shows when the MAX reading was taken 3 With the REC MIN icon on the display the main display shows only the lowest reading recorded The Time of the MIN reading is shown in the lower right LCD field 4 With the REC MAX MIN icon on the dis
14. ower key turns the thermometer ON or OFF When entering data in Setup Mode the power off function is disabled Limits Button The Limits function will alert the user when a measurement exceeds a specified limit To set the limit values refer to the limits function in the Setup Mode Press the Limits button to activate the Limits function LIMIT will be displayed on the LCD When the measured temperature on the main display is higher than the High Limit or lower than the Low Limit the alarm beeper emits a tone and Hi or Lo is displayed Note The tones for High and Low Alarms are different the High Alarm tone is pulsed while the Low Alarm tone is continuous Note When reading over 2000 F using a K or J thermocouple the reading should be multiplied by 10 example 2100 F x 10 21000 To exit the Limits function press the Limits button In this mode the automatic power off feature is disabled along with the following keys REL HOLD amp MIN MAX Backlight Button Press the backlight button to toggle the backlighting on and off The backlight will switch off automatically after 60 seconds to conserve battery life SAVE READ Button The Read data function is used for reading saved data It works in conjunction with the Save function in the Shift Mode 1 Press the SAVE READ button to activate the read data function The word READ will be displayed on the LCD 2 Press the SECOND button until the sign is
15. play the main display shows the difference between Max and Min 5 With the REC AVG icon on the display the main display shows only the average of all the readings recorded Note that the averaging limit is 22 hours After 22 hours the last average reading display is held on the LCD The meter emits a tone when a new minimum or maximum value is recorded Use the HOLD button to pause recording all values are then held Press HOLD again to resume recording To exit the MIN MAX mode press and hold the MIN MAX button for more than 2 seconds until the REC icon switches off T1 T2 Button Main Display Press this button to select which thermocouple input configuration is represented on the main display T1 will display for thermocouple input 1 or T2 for thermocouple 2 When the meter is turned on it is set to the display that was in use when the meter was last powered off T1 T2 Second Display Press this button to select which input is shown on the secondary display lower left display T1 for thermocouple 1 or T2 for thermocouple 2 When the meter is turned on it is set to the display that was in use when the meter was last powered off T1 T2 Time Third Display Press this button to select system time date or the differential between the two thermocouples T1 T2 for the third display lower right display When the meter is turned on it is set to the display that was in use when the meter was last powered off
16. vice between pin 1 and pin 2 refer to Figure 3 For the Lo limit output connect a device between pin 3 and pin 4 refer to Figure 4 Pin 5 Pin 6 Pin 5 Pin 4 Pin 3 x 5 to 30V Pin2 lt gt Pin 1 cig F Pin 6 Figure 1 Figure 2 Pints Pin 3 X Hi Limit Lo Limit gt Pin2 l Figure 3 ___ Pin4 Figure 4 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Interval Time Setting To set up the interval time for the log function press the INVT button The indicator INV will blink at the top right of the LCD and previous settings are displayed Press the number buttons printed in white on the overlay to change the time setting Setting changes from left to right in the following format HH MM SS Press the ENTER button to confirm Press the ESC button to exit this function HH 0 23 MM 0 59 SS 0 59 MAX 23 59 59 MIN 00 00 01 Auto Power Off Time Setting Press the APO button in Setup Mode The indicator APO and the main display will blink on the LCD showing the previous setting Press the number buttons printed in white on the overlay to change the APO time Press the ENTER button to confirm To exit this function without changing the setting press the ESC button MAX 19999 minutes MIN 0005 minutes Thermocouple Of
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