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421509-en-GB_v2.6   8/16 

7

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 Offset 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. 

 

Error messages: 

If 

Err-02

Err-02

 or 

Err-03

 appears in the display, one of the following conditions has occurred: 

 

Err-01

: In the “SAVE” mode, the maximum recording range is 128 samples. The lower right display 

will show 

Err-01

 if the maximum capacity of 128 samples has been reached. 

 

Err-02

: In the “LOG” mode, the maximum recording is 16*64=1024 samples. The lower right display 

will show Err-02 if the maximum capacity of the 16 groups has been reached. 
 

Err-03:

 In the “READ LOG” and “READ SAVE” mode, when the main display shows 6208 and the 

lower right display shows “

OL, Err-03

”, one of the following conditions has occurred:: 

1. There is no data in the memory. 
2. The memory is full, and the meter will warn the user this is the last sample. 
 
SAVE=128 samples 
LOG=1024 samples 
 
 
 

Summary of Contents for 421509

Page 1: ...imum data capacity Backlit LCD Display T1 T2 T1 T2 displays MIN MAX AVG Record Recall Selectable temperature units C F Data Hold Relative Mode Elapsed Timer PC Interface ESC 0 ENTER 1 2 3 4 5 6 7 8 9 DISPLAY C F Limits LOG READ TYPE T1 T2 REL HOLD SHIFT OFS CLR SET SAVE READ TIME T1 T2 APO MAX MIN INVT TYPE T1 T2 MAIN SECOND THIRD 421509 T1 F T1 T2 K APO F T1 ...

Page 2: ... 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 mus...

Page 3: ...ith 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 displayed in the bottom left display The location of the read pointer within the saved data table will be displayed 3 Press the 3 or 6 button to display the next data location Press the 2 or 5 button to increm...

Page 4: ...With the REC MAX MIN icon on the display 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 ...

Page 5: ...ed in one log session Press the 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 Relat...

Page 6: ...ress 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 w...

Page 7: ...ain 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 lef...

Page 8: ...red 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 PC Connect the Optical Interface connector to the 421509 Thermometer The IR2 label should be facing up Connect the USB connector to the PC COM port 1 16 PC Requirements Note Please visit the www extech com website for the late...

Page 9: ...o F 0 1o C 1o F 2000 J type 346 to 2192o F 210 to 1200o C 0 1o F 0 1o C 1o F 2000 T type 328 to 752o F 200 to 400o C 0 1o F 0 1o C E type 346 to 1832o F 210 to 1000o C 0 1o F 0 1o C R type 32 to 3212o F 0 to 1767o C 1o F 1o C S type 32 to 3212o F 0 to 1767o C 1o F 1o C N type 58 to 2372o F 50 to 1300o C 0 1o F 0 1o C Accuracy Specifications Thermocouple Accuracy K J T E types 0 05 rdg 0 6o F 58o F...

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