Extech Instruments 38394 User Manual Download Page 4

38394  V3.3  8/08 

Meter Description 

Front panel 

1. Current 

Jaws 

2. 

Jaw opening trigger 

3. 

Rotary function switch 

4. REL 

key 

5. 

DATA HOLD key 

6. Function 

key 

7. Range 

key 

8. LCD 

display 

9. 

COM & V/

Ω

 input jacks 

 

Symbols and Units of Measure 

AC Current or Voltage 

DC Voltage 

•))) Audible 

Continuity 

 

Diode test 

Hold

 

Display Data Hold

 

Auto

 

Auto Range 

  

Low Battery icon 

V Volt 

(voltage) 

Ω 

Ohm (resistance) 

A Ampere 

(current) 

REL

  

Relative Mode 

Hz, KHz 

Hertz, kilohertz (frequency) 

WARRANTY 

EXTECH INSTRUMENTS CORPORATION (A FLIR COMPANY) warrants this instrument 
to be free of defects in parts and workmanship for one year from date of shipment (a six 
month limited warranty applies to sensors and cables). If it should become necessary to 
return the instrument for service during or beyond the warranty period, contact the 
Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our 
website www.extech.com for contact information. A Return Authorization (RA) number 
must be issued before any product is returned to Extech. The sender is responsible for 
shipping charges, freight, insurance and proper packaging to prevent damage 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 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. 

 

www.burntec.com

www.burntec.com

Summary of Contents for 38394

Page 1: ...User s Guide Digital AC DC Clamp Meter Model 38394 www burntec com www burntec com ...

Page 2: ...erstand this User Guide before operating the meter 1 Always remove the test leads before making current measurements 2 Always remove the test leads before replacing the batteries 3 Inspect the condition of the clamp jaw test leads and the meter for any damage before operating the meter Repair any damage or replace meter before use 4 Do not exceed the maximum rated input limits 5 Use great care whe...

Page 3: ... peak Input Limits A DC AC 600A DC AC fused Resistance 400V DC or AC peak 10 seconds Conductor Size 1 18 30mm maximum Battery type Two 2 1 5V AA batteries Range Selection Automatic ranging Display 5000 Count LCD Overload Indication 1 or 1 Low Battery Indication Battery icon Environmental conditions Installation Category III clamp Category II DMM Pollution degree 2 Altitude 2000 meters Indoor use o...

Page 4: ...ty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website www extech com for contact information A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resu...

Page 5: ... unit of measure AC or DC on the left side of the LCD 3 Insert the black test lead to the COM input jack and the red test lead to the V jack 4 Connect the test leads in PARALLEL with the circuit to be measured 5 Read the displayed measurement value on the LCD display Manual Range This meter automatic selects the range However the range can be manually held and selected To manually hold the range m...

Page 6: ...ack 2 Set the Function switch to the Hz position 3 Connect the test lead tips to the device under test 4 Read the measured value on the LCD display Diode Test CAUTION Before taking measurements remove power from the circuit under test and discharge all capacitors 1 Insert the black test lead to the COM input jack and the red test lead to the V Ω input jack 2 Set the Function switch to the Ω positi...

Page 7: ...s the reference reading 3 Press the REL key to return to normal operation The REL symbol will switch off Maintenance WARNING To avoid electrical shock or damage to the meter keep moisture from entering the meter housing Also remove the test leads before opening the meter housing Cleaning Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents Battery Replac...

Page 8: ...38394 V3 3 8 08 8 www burntec com www burntec com ...

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