User`s Manual Digital AC Watt Meter Model 380660
Contents
1. User s Manual EXTECH Digital AC Watt Meter Model 380660 a gt ome en L E md a EXTECH DW WATT METER Introduction Congratulations on your purchase of the Extech 380660 Digital Watt Meter This 9V battery operated meter measures true power up to 6 000 watts on single phase loads AC DC Current Voltage measurements can also be made The color coded front panel offers safe and convenient operation Proper use of this meter will provide years of reliable service Specifications General Specifications 0 5 12 7mm 1999 count bi polar LCD Display Measurements AC DC Current Voltage and AC Watts true power samans omrrsmonioon o Positive implied Negative reverse polarity displayed as Zero Adjust Manual zero adjust 30 digits for pow er measurements rn curant ana votago trea aunt ese Overload Indication Indication of 1 or 1 Operating Temperature 32 to 122 F 0 to 50 C Less than 80 RH Environmental conditions Installation Category Il Pollution Degree ll eas Altitude 2000 meters for indoor use only 7 0 x 3 5 x 1 4 180 x 80 x 35mm 1 3 Ibs 538g Standard Accessories Test leads and 9V battery Optional Accessories Carrying Case NIST Certificate Range Specifications AC Waitt true power Range Resolution 2000W 1 0 1d 1 Watt 6000W 10 Watts NOTE Accuracy for AC Watts applies to signals gt 60 VAC 60Hz AC DC Voltage Range Accuracy FS Resolution Input Impedanc2. der test before proceeding Operate the instrument only in the temperature range of 32 to 122 F 0 to 50 C Do not exceed the maximum rated voltage current of each range and input terminal Always switch the power to the OFF position when the instrument is not in use Remove the battery if the instrument is not to be used for a long period of time International Safety Symbols A A m Refer to the manual Hazardous voltages Double insulation for safety details may be present 3 Model 380660 Ver 2 2 February 2001 Operation Test Leads One set of test leads is provided for AC DC Current Voltage measurements However when measuring power watts two sets of test leads are required as shown below Additional leads must be supplied by the user to accommodate the connections required Power Watts Measurement Connection Diagram Meter Terminals COM V WATT ig Go O Optional 10A Fuse To 110 220VAC power source LOAD AC Watt True Power Measurements NOTE Read the safety precautions in the previous section before operating the meter Ensure that the power to the load is OFF Slide the meter s power switch to the ON position Adjust the WATT Zero Adjust Knob until the display indicates 000 Determine the highest anticipated load and select the range that exceeds this value Connect 110 220VAC power to the 10A and WATT terminals as shown above Connect the LOAD to the COM and V terminal as shown above Apply
3. e Overload protect 200V 0 8 1d 1MQ 600V AC DC AC DC Current Range Accuracy FS Voltage drop FS current 10A 1 1d 200mV AC or DC Notes 1 Max Input voltage 600V AQDC 2 Max Input current 10A AC DC 3 Frequency range for AC measurements 45 to 65Hz 4 Accuracy tested with RF field strength lt 3V M and lt 30MHz 5 Converter Average responding calibrated to display RMS value of sine wave 2 Model 380660 Ver 2 2 February 2001 Meter Description 1 2 6 Note that the symbol AZ refers to AC and DC units LCD display Power ON OFF switch Function switches Input terminals Zero adjust knob Battery compartment on rear EXTECH owe RATT erin Safety Information Precautions 1 2 3 7 8 9 10 Ensure that the 9V battery is properly inserted and that it is fresh If the LO BAT low battery icon appears on the LCD replace the 9V battery Press the appropriate Function buttons for the application at hand and insert the test leads into the proper terminals before connecting the test leads to the circuit under test Select the proper measurement range by starting at the highest anticipated value Remove one test lead from the circuit under test when changing the meter s range If an overload condition occurs 1 or 1 appears on the display select another measurement range If the overload persists check the meter s function selection and the connection to the circuit un
4. ice during or beyond the warranty period contact the Customer Service Department at 781 890 7440 for authorization 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 Sat a Tech Support Hotlines 781 890 7440 ext 200 extech extech com www extech com Copyright 2001 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 6 Model 380660 Ver 2 2 February 2001
5. power to the load 00 NOY OT BQN Read the power value in watts on the LCD In the 6000W range the user must multiply the displayed reading by 10 9 Note that during AC Watt measurements AC voltage or AC current can be measured by pressing the meter s ACA or ACV function button NOTE It is recommended that a 10A fuse be placed in series with the LOAD to prevent damage to the meter in the event of surges or excessive current during Watt Power or Current measurements Refer to the connection diagram on the previous page AC DC Voltage Measurements NOTE Read the safety precautions in the previous section before operating the meter 1 Connect the BLACK test lead to the COM terminal and the RED test lead to the V terminal 2 Determine highest anticipated DC or AC voltage 200V 600V and select it on the corresponding function range button 3 Slide the power switch to ON position Connect the test leads to the circuit under test 5 Read the Voltage on the meter s LCD 4 Model 380660 Ver 2 2 February 2001 AC DC Current Measurements NOTE Read the safety precautions in the previous section before operating the meter 1 Connect the BLACK test lead to the COM terminal and the RED test lead to the 10A terminal 2 Press the ACA DCA function switch 3 Slide the power switch to ON position 4 Connect the test leads in series with the circuit under test 5 Read the current measurement on the LCD display Bat
6. tery Replacement When the LO BAT low battery icon appears in the left corner of the LCD display the 9V battery should be replaced Accurate measurements may still be made for several hours after the first appearance of the LO BAT indicator however 1 Remove the screw that secures the battery compartment cover rear of meter on bottom 2 Slide the battery compartment cover down to access the battery 3 Replace the 9V battery and reinstall the compartment cover Appendix Power Terms Term Oe ee True actual Power Voltage x Current x Power Factor Apparent Power Voltage x Current Power Factor PF Watts Volt x Amps Vector Relationship of True Reactive Apparent Power and Phase Angle True Power Watts Reactive Power VARS Apparent Power VA 5 Model 380660 Ver 2 2 February 2001 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 any Extech product call customer service for details on services available Extech recommends that calibration be performed on an annual basis to insure calibration integrity Warranty EXTECH INSTRUMENTS CORPORATION 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 on sensors and cables If it should become necessary to return the instrument for serv
Download Pdf Manuals
Related Search