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User's Guide 

 
 

 
 
Hygro-Thermometers 

 

Models 4465CF and 
446580 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Introduction 

Congratulations on your purchase of the Extech 4465CF or 446580 Hygro-Thermometer. 
The Extech Hygro-Thermometers measure and display temperature and relative 
humidity. The 446580 has a PC interface and built-in datalogging capabilities. Careful 
use of these meters will provide years of reliable service. 

 

 

Summary of Contents for 4465CF

Page 1: ...s on your purchase of the Extech 4465CF or 446580 Hygro Thermometer The Extech Hygro Thermometers measure and display temperature and relative humidity The 446580 has a PC interface and built in datalogging capabilities Careful use of these meters will provide years of reliable service ...

Page 2: ...e for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Specifications General Specifications Display Multi function 3 digit 2000 count LCD display Measurement Relative Humidity RH and Temperature C F Data ...

Page 3: ...ripod mount is located at the rear of the meter 5 Humidity changes take time 3 to 5 minutes to stabilize Please allow time for the display to settle 6 When the low battery icon flashes on the LCD replace the 9V battery Displayed Readings The Model 4465CF displays humidity or temperature readings in the center of the LCD depending upon the position of the TEMP RH switch The Model 446580 displays bo...

Page 4: ... takes readings while connected to the PC The readings are taken displayed and stored all at the same time These two modes are discussed in the subsequent sections Datalogging Mode The meter can log up to 7000 readings that can later be transferred to a PC The benefit is that the meter can record remotely without having to be connected to a PC The supplied Windows TM software allows the user to tr...

Page 5: ...data filename and location for data acquisition 8 PC COM port status COM1 or COM2 will appear if communication is active NO COM will appear if communication is not active Setting the Meter s Real Time Clock 1 Click OPTION in the PANEL software window and select SYSTEM TIME SET 2 The current PC system time and date will now be transferred to the meter 3 When data is logged the time and date informa...

Page 6: ...now cleared 3 Note that data can also be erased via software as explained later in this manual Download data from the Model 446580 1 With the meter connected to the PC and with the supplied software running select MEMORY from the OPTION menu in the PANEL software window The LOGGER window will open see LOGGER window description 2 To initiate the data transfer click on the TIME OF RECORDING button 3...

Page 7: ...he meter connected to the PC clear the entire contents of the meter s internal memory by selecting ERASE from the OPTION menu in the PANEL software window Data Acquisition Mode 1 With the meter connected to the PC and the supplied software up and running select SAVE AS from the FILE menu in the PANEL software window 2 A window will appear prompting for a filename and location Select a filename and...

Page 8: ...reviously saved data file The Text Import Wizard will open 5 Step 1 of 3 in the Wizard Choose DELIMITED 6 Click NEXT 7 Step 2 of 3 see diagram Under DELIMITERS check the TAB box type a quotation mark in the OTHER box and select NONE in the TEXT QUALIFIER field 8 Click NEXT 9 Step 3 of 3 Click FINISH The data file will now open You may wish to save the file as an ExcelTM file rather than a data fil...

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