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Model EA15 Version 1.5  9/03 

Data Hold 

Press the 

HOLD

 button to freeze the displayed reading. The 'H' hold icon will appear on 

the display. Press the HOLD button again to return to normal operation. 

MIN, MAX, AVG Recording Function with Timer 

Press the 

MX/MN

 button to begin capturing the Minimum (

MN

), 

Maximum (

MX

), and Average (

AVG

) temperature values. The 

Elapsed Time clock will appear on the lower left of the display. 
The primary display shows the current temperature. The lower 
display will indicate the 

MX,

 

MN

 or 

AVG

 value (depending on 

which is selected) captured since the MX/MN button was 
pressed. 
1. Press 

the 

MX/MN

 button to step through the 

MX,

 

MN

 or 

AVG 

display Each reading 

will be accompanied by a Timer value indicating the time when each reading was 
recorded 

2. 

Press and hold the ‘

’ button to change the elapsed time format from min:sec to 

hour:min 

3. 

Press and Hold the 

MX/MN

 button to exit the MX/MN function. 

Backlight 

Press the       backlight button to turn on the LCD display backlight. The backlight will 
automatically turn off after one minute (or press the button again to turn the light off 
manually). 

Auto Power OFF 

The meter will automatically turn off after 30 minutes if no keys are pressed during this 
period. AUTO POWER OFF is disabled in the max/min and datalogging modes. 
To disable AUTO POWER OFF manually: 

1.  Hold the enter button ‘

’ while turning power on. 

2.  The AUTO POWER OFF function will be reactivated when the meter is manually 

turned off. 

Turning Power OFF 

Press the        button to turn power off. 

Manual Datalogging 

Manual datalogging allows the user to store and recall up to 98 temperature readings with the 
press of a button. 

1. Press 

the 

MEM

 button to manually store a single reading 

into memory. The ‘

MEM

’ icon and location number of the 

reading will appear on display for two seconds and then the 
normal display will return.  

2.  To view stored readings, press the 

READ

 button. The 

memory location number will briefly appear and then the 

READ

’ icon and the stored values will appear on the 

display 

3. Press 

the 

 and 

 buttons to scroll through the memory locations and view the 

logged readings.  

4.  Press the ‘

READ

’ button to exit the read mode 

5.  Press and hold the 

MEM

 button while turning the meter on 

to clear the memory. When the LCD indicates "CLr", the 
memory has been cleared. 

Summary of Contents for EA15

Page 1: ...Dual thermocouple Input with PC Interface Model EA15 Introduction Congratulations on your purchase of the Extech Datalogging Thermometer This device offers dual thermocouple inputs with manual and automatic datalogging capabilities Careful use of this meter will provide years of reliable service ...

Page 2: ...e the specified 64 F to 82 F 18 C to 28 C range Below 148 F 100 C add 0 04 of reading for J K E and N type and 0 08 of reading for T type Note Temperature accuracy does not include the accuracy of the probe Note The temperature scale is based on the international temperature scale of 1990 ITS90 Display Dual Display Multi function LCD with Backlight Input Protection 60VDC 24VAC rms Measurement Rate...

Page 3: ...y is determined from the parameters selected when the meter was last used Selecting thermocouple type Press the TYPE button to select the type of thermocouple being used Selecting C F or K units of measure Press the C F K button to select the unit of measure Selecting T1 T2 and T1 T2 Displays Press the T1 T2 T1 T2 button to step through and select from the following displays a T1 thermocouple 1 pr...

Page 4: ... minute or press the button again to turn the light off manually Auto Power OFF The meter will automatically turn off after 30 minutes if no keys are pressed during this period AUTO POWER OFF is disabled in the max min and datalogging modes To disable AUTO POWER OFF manually 1 Hold the enter button while turning power on 2 The AUTO POWER OFF function will be reactivated when the meter is manually ...

Page 5: ...ll FULL will appear on the display and the meter will stop logging data 4 To stop and exit the datalogging mode press the MEM button 5 To download data read the datalogging sections below Note Max Min and AVG functions can be used with the meter in datalogging mode Clearing stored data 1 Press the button to turn the meter off 2 Press and hold the MEM button then press the button to turn the meter ...

Page 6: ...rmat shown at right To save graph or print the list click the SAVE GRAPH or PRINT icons in the Data List window DATA GRAPH ICON The GRAPH icon is located fourth from left When clicked the data is shown on an x y graph see diagram below The vertical axis represents the temperature units the horizontal axis represents the time Click on the PRINT to get a hard copy of the graph Press the four arrow i...

Page 7: ... the PC as described earlier and the software running click on the datalogger download icon first icon from the right to begin downloading data from the meter to the PC When the screen shown at right appears select a set to view by clicking on its number A set is simply a datalog session Data will be displayed in the data list format described earlier in DATA LIST ICON Once a data set has been sel...

Page 8: ...mage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential dam...

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