99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Back to the Extech 380801 Product Page
User's Guide
Power Analyzer Model 380801
Power Analyzer Datalogger Model 380803
Introduction
Congratulations on your purchase of the Extech 380801 or 380803 Power Analyzer
Datalogger. This device offers the following features:
• Convenient front panel plug-in and testing
• Four displays for Watts, PF/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
• Windows
Careful use of this meter will provide years of reliable service.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TM
Application Software
FAX 781.665.0780 - TestEquipmentDepot.com
1
Model 380801/803 Version 3.1 July 2003
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 t o
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 at www.extech.com (click on ‘Contact Extech’ and go to ‘Service
Department’ to request an RA number). A Return Authorization (RA) number must be issued before any product is returned
to Extech. The sender is responsible for shipping charges, freight, insurance an d 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 modificati on. 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 o r 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)
VOLTAGE (True RMS, Auto Range, AC+DC, Crest Factor < 5)
Range Resolution Accuracy Overload Protection
200V 0.1V
750V 1V
±(0.5% reading + 5digts) (40 to 400Hz) 1000VDC/750VAC
CURRENT (True RMS, AC+DC, Crest Factor < 5)
Range Resolution Accuracy (40 to 400Hz) Overload Protection
2 0.001A
20 0.01A
±(0.5% reading + 5digts) 20A, fused
PF (Direct Calculation from W, V, A): PF = Watt / (V * A)
FREQUENCY (Sensitivity 5V)
Range Resolution Accuracy
40Hz to 20kHz 1Hz-10Hz ±(0.5% of rdg ±2digts
Memory Size (380803) 1012 x 4 readings (non-volatile)
Memory Life (380803) 100,000 memory writes
Display 2000 count LCD displays
Over Range Indication ‘OL’ displayed on LCD
Sampling Rate 2.5 times per second
Power Source Eight 1.5V ‘AA’ batteries or AC adaptor
Power Consumption 22 mA approx.
Operating conditions 32 to 122
o
F (0 to 40oC); Less than 80%
Dimension 13.9"(L) x 11.8"(W) x 3.9" (H)
352(L) x 300(W) x 100(H)mm
Weight 3.6 lbs (1.637 Kg) approx.
0-300V, 0-20A,
PF=0.5 to 1
2
380801/803 Version 4.0 7/05
Meter Description
1. Watts display
11. DC 12V Adaptor Input
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
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.
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380801/803 Version 4.0 7/05
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 end into
the wall outlet.
2. Plug the device to be tested into the output load receptacle. The display will show the
W, PF, V, and A for the device under test.
Note 2: W= VA, 1KW = 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 load
terminals. W, PF, V, and A
will display for the device
under test.
Note 2: W=VA, 1KW = 1KVA = 1000W = 1000VA, when PF =1 at DC
Warning: The input and output receptacle and terminal are connected in parallel Do not
touch any metal part of the receptacle or terminal to avoid electrical shock.
4
Model 380801/803 Version 3.1 July 2003
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
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
VA Apparent Power (V * A)
VAR Reactive Power (SQRT [VA
IR Equivalent current (through equivalent resistance)
Req Equivalent resistance
IL Equivalent current (through equivalent inductance)
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
W
True Power (3φ 3W)
3
φ
WRS Power of R phase with respect to S phase
WTS Power of R phase with respect to S phase
VA
Apparent Power (3φ 3W and Balanced Load)
3
φ
VAR
Reactive Power (3φ 3W and Balanced Load)
3
φ
PF
Power Factor (3φ 3W and Balanced Load)
3
φ
Mean Mean Value
Std Dev Standard Deviation
Best Fit A line drawn to fit a curve with minimum error
-1
(Power Factor)
2
– W2])
Calibration and Repair Services
16
380801/803 Version 4.0 7/05
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