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EA25 v3.1   8/13 

7

Datalogging Software 

The instructions on how to install the datalogging software are printed on the Software CD label. 
The software operating manual can be found on the CD. 
Note that the software is compatible with Windows

TM

  XP, Vista and Windows

TM

 7 operating 

systems. 

Maintenance 

Cleaning and storage 

1. The meter should be cleaned with a damp cloth and mild detergent when necessary. Do not use

solvents or abrasives. 

2. Store the meter in an area with moderate temperature and humidity (refer to the operating and

storage range in the specifications chart earlier in this manual). 

Battery Replacement 

When the battery power falls low, the ‘BT’ symbol will appear on the LCD. Replace the six 1.5 ‘AAA’ 
batteries by removing the rear battery compartment screw and accessing the battery compartment. 
Check that the polarity (orientation) is correct when placing the batteries in the compartment. 
Ensure that the compartment cover is securely fastened when finished. 

Calibration and Repair Services 

Extech offers complete repair and calibration services

 for all of the products we sell. For 

periodic calibration, NIST certification or repair of this Extech product, call customer service for 
details on services available. Extech recommends that calibration be performed on an annual basis 
to ensure calibration integrity. 

Summary of Contents for EA25

Page 1: ...User s Guide EasyView Digital Hygro Thermometer Datalogger Model EA25 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com ...

Page 2: ...ce sensor Temperature thermistor Response Time Humidity 45 to 95 1 min 95 to 45 3 min Temperature Approx 2 seconds for a 10 o C change Reading Rate 2 readings per second RS 232 PC Interface Optical connection with supplied interface cable Software compatible with Windows TM XP Vista and Windows 7 systems Datalogger storage Stores 99 sets of data in manual mode 15 000 in auto mode Sampling Interval...

Page 3: ...button 6 Humidity Temperature select button 7 SET button 8 Units C F select button 9 MEM memory button 10 ENTER button 11 READ button 12 DEW POINT temperature select left arrow button 13 UP DOWN programming keys 14 WET BULB temperature select right arrow button 15 RS 232 optical jack 16 The battery compartment is located on the rear of the instrument 9 3 6 4 7 8 5 2 1 ...

Page 4: ... button allows the user to view the elapsed time for a particular MX or MN reading in Minutes Seconds 59mins 59secs max or Days Hours 99days 24hours max 4 To check the highest and lowest Dew Point or Wet Bulb temperatures use the DEW and the WET buttons 5 The following data displays are available in the MX MN mode Maximum and Minimum Humidity with the associated Temperature Maximum and Minimum Tem...

Page 5: ... has been downloaded otherwise it will be lost Up to 15 000 sets of data can be recorded in automatic datalogging mode ALL of the following settings must be configured before datalogging Real Time Clock Set to the current time in hours minutes and seconds Start Time Set the time that datalogging will automatically begin Stop Time Set the time that datalogging will automatically stop Interval Time ...

Page 6: ...ired minute that datalogging will end 5 Press to move to the two flashing digits representing seconds 6 Press or to set the desired second that datalogging will end 7 Press enter key to store the datalogging stop time and move to the next screen Datalogging Sampling Interval Setting 1 INTV interval appears along with the current interval selection in seconds 2 Use the or buttons to change the numb...

Page 7: ...cations chart earlier in this manual Battery Replacement When the battery power falls low the BT symbol will appear on the LCD Replace the six 1 5 AAA batteries by removing the rear battery compartment screw and accessing the battery compartment Check that the polarity orientation is correct when placing the batteries in the compartment Ensure that the compartment cover is securely fastened when f...

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