Extech 380801 - Manuals - manualsarea.com

Page 3 - Meter Description

380801-380803 V7.0 8/06 3 Meter Description 1. Watts display 2. PF or VA display 3. V or KHz display 4. A display 5. 20A fuse 6. Input Receptacle 7. Input Terminal 8. Output Terminal 9. Output Receptacle 10. RS-232 Terminal 11. DC 12V Adaptor Input 12. Hold 13. MAX button 14. PF/VA Select Button 15....

Page 4 - Basic Operation; Warning

380801-380803 V7.0 8/06 4 Basic Operation Warning : If a power source of 220V is connected to the input voltage terminal/receptacle, do not connect a110V device to the output load terminal/receptacle. Using Receptacles 1. Plug one end of the power cord into the input receptacle and plug the other en...

Page 5 - Using a Current Transformer

380801-380803 V7.0 8/06 5 1 2W Power Line Motor K K L I Using a Current Transformer Warning : Only personnel well trained in the principles of Current Transformers (CT) should attempt this test connection. When connecting a CT, follow the wiring diagrams and instructions below. 1. Connect the CT’s k...

Page 6 - PC Interface for Data Acquisition & Datalogging Features; Data Acquisition

380801-380803 V7.0 8/06 6 PC Interface for Data Acquisition & Datalogging Features Data Acquisition Models 380801 and 380803 can be connected to a PC where readings can be logged in real-time as they are taken. Transferred reading data can be viewed, plotted, statistically analyzed, printed, sav...

Page 7 - Replacement of Batteries and 20A Fuse; Battery Replacement

380801-380803 V7.0 8/06 7 Replacement of Batteries and 20A Fuse Battery Replacement When the low battery symbol is displayed on any of the LCDs, replace the eight (8) 1.5V ‘AA’ batteries. 1. Turn off the power analyzer. 2. Open the battery compartment by using a screw driver (see diagram). 3. Replac...

Page 8 - Using Two Power Analyzers

380801-380803 V7.0 8/06 8 Using Two Power Analyzers Measure W RS and W TS (RST phases must be correctly identified) 1. Connect the R-phase of the power source to the black terminal of the input voltage of power analyzer 1. 2. Connect the S-phase of the power source to the red terminal of the input v...

Page 9 - Using Current Transformers (CT) with 2 Power Analyzers

380801-380803 V7.0 8/06 9 Using Current Transformers (CT) with 2 Power Analyzers Measure W RS and W TS (RST phases must be correctly identified) 1. Connect the R-Phase to the black terminal of the input voltage of power analyzer 1. 2. Connect the S-phase to the red terminal of the input voltage of p...

Page 10 - Glossary of Terms; Calibration and Repair Services; Extech offers complete repair and calibration services; Product specifications subject to change without notice

380801-380803 V7.0 8/06 10 Glossary of Terms W True Watt PF Power Factor V True RMS Voltage A True RMS Ampere Phase angle Time difference between V and A calculated by cos-1 (Power Factor) VA Apparent Power (V * A) VAR Reactive Power (SQRT [VA 2 – W 2 ]) IR Equivalent current (through equivalent res...