Extech Instruments 382095 User Manual
  1. Manuals
  2. Brands
  3. Extech Instruments Manuals
  4. Measuring Instruments
  5. 382095
  6. User manual

Extech Instruments 382095 User Manual

Power and harmonics analyzer
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
User Manual
Power and Harmonics Analyzer
Model 382095

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 382095 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Extech Instruments 382095

Summary of Contents for Extech Instruments 382095

  • Page 1 User Manual Power and Harmonics Analyzer Model 382095...
  • Page 2 Do not touch exposed metal parts or unused terminals. Consider the use of rubber gloves in operation. Do not operate in excess of AC 500V (Phase to Neutral), or AC 600V (Phase to Phase) Do not operate this instrument if it appears to be malfunctioning 382095 V4.1 7/06...

  • Page 3: Table Of Contents

    READ the SAVED SCREEN SET THE CT AND VT RATIO SET THE TIME INTERVAL FOR MAXIMUM DEMAND SET THE SAMPLING TIME FOR DATA LOGGING SET THE CALENDER CLOCK PROTOCOL OF RS-232C INTERFACE SPECIFICATIONS BATTERY REPLACEMENT MAINTENANCE & CLEANING Nomenclature 382095 V4.1 7/06...
  • Page 4 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). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext.

  • Page 5: Features

    512K Memory with Programmable Interval (Sampling time from 2 to 6000 seconds, data logging time from 4.7 hours to 1180 days for 3P4W system) ■ Output of Waveform, Power Parameters and Harmonics on Command ■ Large Dot Matrix LCD Display with Backlight ■ Optical Isolated RS-232C Interface 382095 V4.1 7/06...

  • Page 6: Panel Description

    PANEL DESCRIPTION 382095 V4.1 7/06...
  • Page 7 Press this button to hold the data displayed in LCD, press again to continue operation. Press this button to begin the measurement of harmonics in magnitude. Press this button to select V1, I1, V2, I2, V3, or I3 for harmonics analysis 382095 V4.1 7/06...
  • Page 8 In the power mode, press this button to select the appropriate system (3P4W, 3P3W, 1P2W or 1P3W). In the waveform mode, press to select (V1, I1), (V2, I2), or (V3, I3). Press this button to turn the power on or off. 382095 V4.1 7/06...
  • Page 9 Range Selector 6 pin mini DIN connector 1000A 100A NOTE: To select the1000A current probe, press the SETUP button to select CLAMP. When the CLAMP is reverse video, press the ▲ or ▼ button to select 1000. 382095 V4.1 7/06...
  • Page 10 Flexible Current Probe (3000A) NOTE: The flexible current probe has a maximum input of 3000A however the maximum input current of the 382095 Power and Harmonics Analyzer is 1000A. Control Box Output Range Select Switch Flexible Loop Coupling Assembly NOTE: To select the 3000A flexible current probe, press the SETUP button to select CLAMP. When the CLAMP is reverse video, press the ▲...

  • Page 11: Operating Instructions

    Turn the power on. Press the POWER and the 1Φ3Φ buttons to select the 3P4W system. The type of system will be displayed at the left bottom corner in the LCD. b. Connect the four test leads to the voltage terminals V1, V2, V3 and the V (Neutral) of the system. 382095 V4.1 7/06...

  • Page 12: Power Quality Of A 3 Phase 3 Wire (3P3W) System

    Connect the three current probes to the power analyzer input terminal I1, I2, and I3. Clamp on to the L1, L2, and L3. Make sure the current flows from the front of the current probe to the back. All parameters of the system will be shown in the LCD 382095 V4.1 7/06...

  • Page 13: Power Quality Of A Single Phase (1P2W) System

    Clamp on to the L1. Make sure the current flows from the front of the current probe to the back (see arrow labeled on clamp probe). All of the parameters of the system will be shown in the LCD For a description of each parameter, refer to XIV. NOMENCLATURE. 382095 V4.1 7/06...

  • Page 14: Power Quality Of A 1 Phase 3 Wire (1P3W) System

    Clamp on to the L1 and L2. Make sure the current flows from the front of the current probe to the back. All of the system parameters will be shown in the LCD For a description of each parameter, refer to XIV. NOMENCLATURE. 382095 V4.1 7/06...

  • Page 15: Measurement Of A System With Ct Or Vt

    (see the arrow label on the clamp probe). Press SETUP to enter the SETUP menu. Press SETUP several times until the CT symbol is highlighted. Press the ▲ or ▼ button to increment or decrement the RATIO specified by the CT. 382095 V4.1 7/06...

  • Page 16: Harmonic Analysis Of Voltage Or Current

    For a description of each parameter, refer to XIV. NOMENCLATURE. Harmonic Analysis of Voltage or Current (Normal Voltage without Distortion and Harmonics) (Distorted Current with Harmonics) a. Setup the analyzer for measurement of any power system (3P4W, 3P3W, 1P2W, or 1P3W). To view 382095 V4.1 7/06...

  • Page 17: Display The Phase Angle Of Harmonics

    ► button to pass the 50 order or press the ◄ button to pass the 1 order. NOTE: If the waveform is clipped at the peak or too small in the LCD, press the RANGE button to 382095 V4.1 7/06...

  • Page 18: Measurement Of Maximum Demand

    NOTE: The triggering point is the zero crossing point of V1 for V2, V3, I2, and I3. The triggering point for I1 is its own zero crossing point in case V1 is not present. NOTE: In the waveform display mode, one period/cycle of 1024 data points is displayed. 382095 V4.1 7/06...

  • Page 19: Waveform Of Voltage Only

    NOTE: In the waveform mode, one period/cycle of 1024 data points is displayed. Graphic Phase Diagram Press this button to display the phase diagram. The voltage and current signals are displayed in phase format (magnitude, angle). V1 is the reference. The V1 angle is always 0 degrees. 382095 V4.1 7/06...
  • Page 20 NOTE: If the voltage of L1, L2, and L3 is not connected in the correct sequence, the analyzer will show L1-3-2 in the right top corner, and it will beep to warn of an incorrect phase sequence. 382095 V4.1 7/06...

  • Page 21: Phase Sequence Of A 3 Phase System

    V12 = V23 = V31 The phase angle of V2 = -120; the phase angle of V3 = 120 Vn (voltage of neutral with respect to ground) = 0V VUR = 0% d0% = 0% d2% = 0% 382095 V4.1 7/06...

  • Page 22: Balance And Unbalance 3 Phase (3P3W Or 3P4W) Load System

    If the values differ from the numbers above, an unbalanced load system may be the reason. The magnitude of the difference can be used as an indication of an unbalanced power source system. The larger the difference, the more unbalanced the load will be. 382095 V4.1 7/06...

  • Page 23: Transient Capture (Dips, Swells, Outage)

    3. Press the ▲ or ▼ button to increment or decrement the nominal voltage for a reference. To exit, press the EXIT button. 4. Press the SETUP button several times until SDVP is shown in the right bottom corner of the LCD. 382095 V4.1 7/06...
  • Page 24 NOTE: The codes can be summed to indicate two or three conditions. For example, if the code is 6, DIP and OUTAGE (2+4) have been added. NOTE: The longest duration for a capture operation is 99 days. Use the external 12V DC power adaptor for long capture operation. 382095 V4.1 7/06...

  • Page 25: Down Load Transient Data

    6. When a CTRL D command is received through the RS-232C port, it downloads stored power data. NOTE: In the setup mode, the unit will not accept commands through the RS-232C port. To down load data, press the EXIT button to return to normal measurement mode. 382095 V4.1 7/06...

  • Page 26: Down Load Harmonics Data

    6. When the unit receives a CTRL D command through the RS-232C port, it will down load previously saved harmonic data. NOTE: In the setup mode, the unit will not accept any commands through the RS-232C port. To down load data, press the EXIT button to return to normal measurement mode. 382095 V4.1 7/06...

  • Page 27: Hardcopy Of Screen

    Press the REC button. It takes a few seconds to hardcopy the screen, and store the screen in an internal file. The LCD will show REC in reverse video when in operation. The number following REC is the file number. Users can store up to 85 screens (if no power or harmonics data is stored). 382095 V4.1 7/06...

  • Page 28: Read The Saved Screen

    Press the HOLD/READ button to restore the saved screen. NOTE: If the data saved in a specific file is a HARDCOPY of a screen, a leading symbol of H is displayed in reverse video. NOTE: Hardcopy data can not be downloaded. 382095 V4.1 7/06...

  • Page 29: Set The Ct And Vt Ratio

    The CT ratio range is 1 to 600. The VT ratio range is 1 to 3000. Once the CT or VT (PT) is set, the voltage and current readings are as follows: CURRENT (displayed) = CURRENT (measured) x CT Ratio VOLTAGE (displayed) = VOLTAGE (measured) x VT Ratio 382095 V4.1 7/06...

  • Page 30: Set The Time Interval For Maximum Demand

    The MD (max. demand) time interval range is 1 to 60 minutes. Once the time interval is set, the unit will calculate the maximum demand and average demand in watts (W) or VA. To toggle between W and VA, press the POWER button. 382095 V4.1 7/06...

  • Page 31: Set The Sampling Time For Data Logging

    Press the SETUP button several times until SEC is displayed in reverse video. Press the ▲ or ▼ button to increment or decrement the value by 2. Holding the ▲ or ▼ button will speed up the process of incrementing or decrementing. To exit, press the EXIT button. 382095 V4.1 7/06...

  • Page 32: Set The Calender Clock

    SET THE CALENDER CLOCK Press the SETUP button to select (Year, Month, Date, Hour, and Minute). Press the ▲ or ▼ to increment or decrement the number. Note: The ‘seconds’ field cannot be adjusted. 382095 V4.1 7/06...

  • Page 33: Protocol Of Rs-232C Interface

    For CT ≠ 1, the accuracy in percentage is the same (±1%). The additional digits should be multiplied by the CT ratio. For example, ±8dgts becomes ±8dgts * CT ratio Range of CT (Current Transformer) Ratio: 1 to 600 Model 382095 + 3000A flexible clamp Range (0 to 3000A) Resolution Accuracy of Readings >20V &...
  • Page 34 ±0.5% ± 5dgts For VT (PT) ≠ 1, the accuracy in percentage is the same (±0.5%). The additional digits should be multiplied by the CT ratio. For example, ±5 digits becomes ±5 digits * VT (PT) ratio 382095 V4.1 7/06...
  • Page 35 0.1 % ±2% of reading ±1% 21 to 50 (A range) 0.1 % ±5% of reading ±1% 21 to 50 (mA range) 0.1 % ±10% of reading ±1% 51 to 99 0.1 % ±35% of reading ±1% 382095 V4.1 7/06...
  • Page 36 1 to 20 0.1A ±2% of range ±40A 21 to 50 ±4% of range ±40A 51 to 99 ±6% of range ±40A Power Factor (PF) Range Resolution Accuracy 0.00 to 1.00 0.01 ± 0.04 (>20V and >30A) 382095 V4.1 7/06...
  • Page 37 ±6% of range ± 1% 100 to 999.9% 0.1% ±10% of range ±1% Peak Value of AC Voltage (peak value > 5V) or AC Current (peak value > 20A), VT=1 Model 382095 + 1000A Clamp Range Sampling Time Accuracy of Reading 50 Hz 39 µs...
  • Page 38 Peak Value of AC Voltage (peak value > 5V) or AC Current (peak value > 20A), VT=1 Model 382095 + 3000A Flexible Clamp Range Sampling Time Accuracy of Reading 50 Hz 39 µs ± 5% ± 30 digits 60 Hz 33 µs...
  • Page 39 14 to 122 ° F (-10 ° C to 50 ° C) Operating Humidity: < 85% relative humidity Altitude: < 2000 meters Storage Temperature: -4 to 140 ° F (-20 ° C to 60 ° C) Storage Humidity: < 75% relative 382095 V4.1 7/06...
  • Page 40 14 to 185 ° F (-10 ° C to 85 ° C) Operating Humidity: < 85% relative humidity Altitude: < 2000 meters Storage Temperature: -4 to 185 ° F (-20 ° C to 85 ° C) Storage Humidity: < 85% relative 382095 V4.1 7/06...

  • Page 41: Battery Replacement

    Service not covered in this manual should only be performed by qualified personnel. Repairs should only be performed by qualified personnel. Periodically wipe the case with a damp cloth and detergent; do not use abrasives or solvents. 382095 V4.1 7/06...

  • Page 42: Nomenclature

    SEC: sampling interval (0 to 3000 seconds) for data logging CT: Current Transformer Ratio from 1 to 600 VT: Voltage Transformer Ratio from 1 to 3000 more info for Extech 382095 Phone: 01235 838 555 Email: cs@airconcern.co.uk Web: www.airconcern.co.uk Air Concern Ltd, Building 173 Curie Avenue Harwell Didcot, Oxfordshire...

Table of Contents