Extech Instruments 380801 User Manual Download

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380801/803 Version 4.0 7/05

Using Current Transformers (CT) with 2 Power Analyzers

Measure W

and W

(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 power analyzer

3. Connect

the

terminal of CT1 to the R-phase.

4. Connect

the

terminal of CT1 to the black terminal of the output load of power

analyzer 1.

5. The Watt reading of the power analyzer 1 is W

6. Connect the T-phase to the black terminal of the input voltage of power

analyzer 2.

7. Connect the S-phase to the red terminal of the input voltage of power analyzer

8. Connect

the

terminal of CT2 to the R-phase.

9. Connect the

terminal of CT2 with the black terminal of the output load of

power analyzer 1.

10. The Watt reading of the power analyzer 2 is W

Summary of Contents for 380801

Page 1: ... VA V KHz Amperes True power true RMS for AC Voltage V and Current A Datalogger stores over 1000 readings Model 380803 Auto Range for Watts and Volts RS 232 PC Interface WindowsTM Application Software Careful use of this meter will provide years of reliable service Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 99 Washington Street M...

Page 2: ...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 WATT Auto Range AC DC Crest Factor 5 Range Resolution Accuracy Input 200W 0 1W 2000W 1W 0 9 reading 5digts 50 60Hz 2 reading 9digts 40 to 400Hz 0 300V 0...

Page 3: ...lay 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 REC button 380803 16 KHz frequency 17 On Off Button 18 Battery Compartment Cover 19 Carrying Handle 20 Storage Space for Accessories ...

Page 4: ...le and terminal are connected in parallel as are the outputs To avoid electrical shock do not touch any metal part of the receptacle or terminal Using Terminals 1 Plug one end of the power leads into the input voltage terminal left and connect the other end of the test leads to the power source 2 Plug the device power leads into the output load terminals W PF V and A will display for the device un...

Page 5: ...tance XL Equivalent impedance of equivalent inductance Leq Equivalent inductance CAP Required capacitance CR Carriage Return LF Line Feed EPS Datalogger Memory Self test EPE Erasing Datalogger Memory W3φ True Power 3φ 3W WRS Power of R phase with respect to S phase WTS Power of R phase with respect to S phase VA3φ Apparent Power 3φ 3W and Balanced Load VAR3φ Reactive Power 3φ 3W and Balanced Load ...

Page 6: ... analyzer 1 Do not short the R phase of the load to the R phase of the input power source 4 Record the reading of WRS displayed on the W LCD of power analyzer 1 5 Connect the T phase of the power source to the black terminal of the input voltage of power analyzer 2 6 Connect the S phase of the power source to the red terminal of the input voltage of power analyzer 2 7 Plug the T phase of the devic...

Page 7: ...W 1KVA 1000W 1000VA when PF 1 Warning The input receptacle and terminal are connected in parallel as are the outputs To avoid electrical shock do not touch any metal part of the receptacle or terminal Using Terminals 1 Plug one end of the power leads into the input voltage terminal left and connect the other end of the test leads to the power source 2 Plug the device power leads into the output lo...

Page 8: ...cation message will display and the program halts Once the PC communication port is setup correctly the main software window will be displayed as shown below FILE Under FILE the options detailed below are available Name Enter a file name where data will be stored Start Recording There are two sub options under the START pull down menu Now Starts automatic continuous recording when selected Manuall...

Page 9: ...0 points Statis Statistics Plot average value standard deviation and best fit over the curve This function is valid only when there are less than 3600 data points Clear Clear the graphic screen Print Prints the graph to connected printer OPTION The Option menu on the main software screen provides the following three options Sample Rate Sample rate is the interval of time between readings Select th...

Page 10: ... changes are made to obtain a new capacitance value Click PRINT to obtain a hard copy of the software window Warning This function is valid only when circuit is equivalent to a voltage source resistance and inductance in parallel as drawn above Datalogger Software Window Select Datalogger from the OPTION menu and the datalogger window will appear as shown below To retrieve data from the datalogger...

Page 11: ...ded that this function be used only by those very familiar with the commands of the power analyzer and datalogger Request a copy of the 380803 Protocol Manual from Extech that includes the commands format FILE The File menu heading includes the following selections CONVERT Convert coded data file into an ASCII data file A coded data file RAW_DATA DMM is generated when the Read Save button is selec...

Page 12: ...tus will show OK Memory Write Failure Counts will show 0 and Last Write Failure Address will show none If any WRITE failure occurred the Memory Status will display FAIL the Memory Write Failure Counts will show the number of failures and the Last Write Failure Address will show the memory address for the failure Test the non volatile memory of the datalogger by pressing the start button and follow...

Page 13: ...s must be correctly identified 1 Connect the R phase of the power source to the black terminal of the input voltage 2 Connect the S phase of the power source to the red terminal of the input voltage 3 Plug the R phase of the device to be tested to the black terminal of the output load Do not short the R phase of the device to be tested to the R phase of the input power source 4 Record the reading ...

Page 14: ...R phase of the input power source 4 Record the reading of WRS displayed on the W LCD of power analyzer 1 5 Connect the T phase of the power source to the black terminal of the input voltage of power analyzer 2 6 Connect the S phase of the power source to the red terminal of the input voltage of power analyzer 2 7 Plug the T phase of the device to be tested to the black terminal of the output load ...

Page 15: ...rminal of CT1 to the R phase 4 Connect the l terminal of CT1 to the black terminal of the output load of power analyzer 1 5 The Watt reading of the power analyzer 1 is WRS 6 Connect the T phase to the black terminal of the input voltage of power analyzer 2 7 Connect the S phase to the red terminal of the input voltage of power analyzer 2 8 Connect the k terminal of CT2 to the R phase 9 Connect the...

Page 16: ...eq Equivalent inductance CAP Required capacitance CR Carriage Return LF Line Feed EPS Datalogger Memory Self test EPE Erasing Datalogger Memory W3φ True Power 3φ 3W WRS Power of R phase with respect to S phase WTS Power of R phase with respect to S phase VA3φ Apparent Power 3φ 3W and Balanced Load VAR3φ Reactive Power 3φ 3W and Balanced Load PF3φ Power Factor 3φ 3W and Balanced Load Mean Mean Valu...

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