Related Manuals for Extech Instruments 382075
Summary of Contents for Extech Instruments 382075
- Page 1 User's Guide 2000A True RMS 3-Phase Clamp Power Analyzer Model 382075 contact: www.ponpe.com sale@ponpe.com...
- Page 2 Introduction Congratulations on your purchase of the Extech Model 382075 Auto Range Power Clamp-On Meter. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. 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 to sensors and cables).
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Page 3: Table Of Contents
Improving the Power Factor of a 3φ4W Power System Improving the Power Factor of a 3φ Balanced Power System Improving Power Factor of a 1φ2W Power System Phase Sequence Indication Recording Data Recalling Data from Memory Specifications Battery Replacement 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 4: Safety
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Function Input Protection A AC, A DC 3000A DC/AC V AC 750V AC V DC, 1000V DC 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 5: Meter Functional Description
Press this button once to zero the Amp or Watt display. While the meter is zeroing, the word ZERO appears the LCD. 12. REC button Press the REC button to store up to 4 data points in meter memory. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 6: Operating Instructions
0 Hz. If the frequency is > 400 Hz, LCD will show OL. Voltage(V) / Current (A) Dual Display Follow the instructions in the section entitled "3φ Balanced Power Measurements" to monitor V and A simultaneously. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 7: Ac/Dc Current Measurements
The power clamp will automatically select the proper measurement range. Read the Watt and PF (Power Factor) values displayed on the LCD. NOTE: The "+" sign printed on jaw must face the power source for accurate measurements. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 8: Ac/Dc 1Φ2W Apparent/Reactive Power Measurements (Kva+Kvar)
CAPACITIVE LOAD: A positive phase angle indicates that the current signal leads the voltage signal. A positive phase angle also indicates a capacitive load. NOTE: The "+" sign printed on the clamp jaw must face the power source for correct readings. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 9: 3Φ Balanced Power Measurements
The "+" sign printed on jaw must face the power source for accurate measurement. NOTE: To find out if a load is capacitive or inductive, refer to the section entitled "Phase Angle Measurements". 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 10: 3Φ3W Unbalanced Power Measurements
The power clamp will automatically select proper range. Wait until the reading stabilizes, then press the NEXT button. The W (or W L3L2 symbol will disappear. At this moment, W (or W ) data are stored in memory, L3L2 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 11: 3Φ4W Unbalanced Power Measurements
Wait until the reading is stable, then press the NEXT button. The W symbol will disappear. Now, W is stored in the memory, and the W symbol flashes prompting the user to take the W measurement. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... - Page 12 If one is negative, check the connection of the test leads and the clamping of jaw. Make sure test lead and clamp connections are correct to obtain useful power readings. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com...
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Page 13: 1Φ3W Power Measurement
) are taken, the power clamp will add the two values together and show the result on the LCD. The W symbol will display along with the wattage of the 1φ3W unbalanced Power. PF is not shown in 1φ3W unbalanced power mode. See equation below. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 14: Calculation Of 3Φ4W Power Factor (Pf)
It is recommended that the KVAR value of the capacitor should be a little less than the value measured. NOTE: The indication of phase sequence is not limited to 3φ balanced power. It can be used in general as long as the Power Factor is greater than 0.1. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 15: Phase Sequence Indication
NOTE: If both the REC and the No. symbols are shown on LCD, the reading shown on the LCD is the data stored in memory, not actual measurement data. 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... -
Page 16: Specifications
Range Resolution DC, 50 / 60 Hz 40 - 400Hz Impedance 0-200V 0.1V ±1.5% ±5dgts ±2.0% ±5dgts 10MΩ 200-500V 0.1V ±1.5% ±5dgts ±2.0% ±5dgts 500 - 600VAC ±1.5% ±5dgts ±2.0% ±5dgts 500 - 800VDC 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com... - Page 17 Accuracy Sensitivity 50/60 Hz ±2 dgts V > 1V, A > 5A 10 - 400 Hz 0.5% ± 2dgts Power Factor (PF) Range Max. Resolution PF = KW / KVA 0.2 to 1 0.01 382075 V2.2V 9/10 contact: www.ponpe.com sale@ponpe.com...
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Page 18: Battery Replacement
Lift and remove the meter battery compartment. Replace the 9V battery. Replace the case and secure the screws. Copyright © 2006 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form. 382075 V2.2V 9/10 contact: www.ponpe.com...