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Model TK30  Version 1.2  July 2002 

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Support Hotline (781) 890-7440 

Tech support: Ext. 200; Email: [email protected] 

Repair/Returns: Ext. 210; Email: [email protected] 

Website: www.extech.com 

Current Clamp and Line Splitter 

 

Line Splitter 

The supplied Line Splitter provides a means to cleanly 
“open” a standard 120V line cord in order to make clamp 
type current measurements. When connected between the 
120V AC wall outlet and the device under test, the Current 
Clamp can then be clamped on one of the two test 
openings in the Splitter. One opening provides a one-to-
one current reading and the other provides a times-ten 
(X10) reading so that small current will display with better 
resolution on the MultiMeter. 
 
 

Line Splitter Operation: 

Current Measurements 

1. 

Plug the AC Line Splitter into the 120V receptacle 

2. 

Plug the line cord from the load into the AC Line Splitter socket 

3. 

Close the Clamp-on jaws around either the X1 or X10 arm of the AC Line Splitter 

4. 

If the X1 position is used, read the current directly on the meter 

5. 

If the X10 position is used, divide the meter reading by 10 to obtain the actual 
current 

 

Voltage Measurements 

1. 

Plug the AC Line Splitter into the 120V receptacle 

2. 

Insert the multimeter test leads into the two Voltage Test jacks 

3. 

Read the voltage on the multimeter 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

Copyright 

©

 

2002 Extech Instruments Corporation. 

All rights reserved including the right of reproduction in whole or in part in any form. 

VOLTAGE TEST

LINE SPLITTER

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