English User`s Manual

User Guide
1000A 3-Phase Power
Analyzer/Datalogger
Model 382090 (60Hz)
Model 382091 (50Hz)
Introduction
Congratulations on your purchase of the Extech 382090/382091 1000A 3-Phase Power Analyzer
Datalogger. Model 382090 is for use with 60Hz power systems. Model 382091 is for use with
50Hz power systems. This package includes four (4) clamp-on meters and four (4) alligator clip
leads that connect to the analyzer/datalogger. When the clamps and test leads are connected to
the circuit under test the user can view up to ten power measurement displays. Also, up to 20,000
data sets can be automatically stored by the analyzer/datalogger. Stored readings can later be
transferred to a PC. Real-time logging (readings recorded and transferred to PC at the same time)
is also supported. Careful use of these instruments will provide years of reliable service.
Features

Ten display LCD screens capable of showing a multitude of power quality parameters
simultaneously

Up to four current probes can be connected to the analyzer

Measure single-phase 2-wire, single-phase 3-wire, three-phase 3-wire and three-phase 4wire systems

True-RMS sensing for V, A, KW, KVAR, KVA, PF, θ, Hz, KWh, KVARh and KVAh
measurements

Phase sequence indicator

Backlit display

Manual and Automatic Datalogging

PC interface with 3-phase voltage/current waveform display & harmonic analysis

Easy-to-use push-button operation

Light weight and portable
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Safety
This Operation Manual provides information and warnings essential for operating the Model
382090/382091 in a safe manner. Before using this meter, be sure to carefully read the following
safety information.
DANGER
During high voltage measurements, incorrect measurement procedures could result in injury or
death, as well as damage to the meter. Please read this manual carefully and be sure to
understand its contents before using the meter.

Do not use the meter if the test leads appear damaged

Use extreme caution when working around bare conductors or bus bars, Accidental contact
with the conductor could result in electric shock

To avoid damage to the meter do not exceed the specified maximum input limits

Use the meter only as specified in this manual to ensure that the protection provided by the
meter is not impaired
SAFETY SYMBOLS
This symbol printed on the meter alerts the operator to consult
corresponding manual topics before using related meter functions
Dangerous voltages
Meter is protected throughout by double insulation or reinforced insulation.
When servicing, use only specified replacement parts.
Complies with EN-61010-1, IEC 1010-2-32
DANGER: Indicates that incorrect operation presents extreme danger of accident
resulting in death or serious injury to the user.
WARNING: Indicates that incorrect operation presents significant danger of accident
resulting in death or serious injury to the user.
CAUTION: Indicates that incorrect operation presents possibility of injury to the user or
damage to the meter.
NOTE: Denotes items of advice related to the performance of the meter or to its correct
operation.
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Installation Safety

CAUTION
The meter is designed for indoor use and can be safely used at temperatures ranging
o
o
from 32 to 104 F (0 to 40 C).

Do not store or use the meter where it will be exposed to direct sunlight, high
temperature, high humidity, or condensation. If exposed to such conditions, the meter
may be damaged, the insulation may deteriorate, and/or the meter may no longer meet
the published specifications.

The meter is not waterproof or dustproof

Do not use the unit where it may be exposed to corrosive or explosive gases
Preparation Safety
WARNING

To prevent electrical shock, do not allow the meter to become wet and do not handle the
meter with wet hands.

When working with live circuits, take all suitable precautions against accidents, including
the use of electrical safety gear such as rubber gloves, rubber boots, and safety helmets.
Connection Safety
WARNING

To prevent electrical shock, turn the power off before connecting the test leads.

In order to prevent electrical shock and short-circuits, shut off the power to the line under
test before connecting the line under test to the voltage input terminals.
CAUTION
The measurement input and synchronizing input are not isolated from each other. Connecting
either one means that the other is exposed and live with a danger of electrical shock present.
To avoid electrical shock, connect both terminals.
WARNING
To avoid electrical shock and/or meter damage, use caution when connecting test leads to live
components. The jaws of alligator clips can create a short circuit between closely spaced live
parts. Avoid making connections to feeder conductors or bus bars at elevated potentials.

Follow all city, state, and local codes. Obey posted instructions.

Never assume that a circuit is de-energized, check it first.

Always set up the measurement first and then connect test leads to the circuit.

Make connections to the meter first, before connecting leads to a live circuit.

Connect the ground lead first, then the voltage leads and the current probe. Disconnect in
reverse order.
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Analyzer Description
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1. Input jacks for test leads (U1, U2, U3, N)
2. Input jacks for current probes (I1, I2, I3, I4)
3. Plug for external AC adaptor
4. Optical RS232 PC interface output
5. LCD display
6. WIRING key Select the type of electrical system under test using the WIRING key. Select 1P2W
(for signal-phase two-wire power lines), 1P3W (for signal-phase three-wire power
lines), 3P3W2M (for three-phase three-wire power line without neutral using the two
power meter method; use this selection when measuring three-phase power with 2current probe measurement only) and 3P4W (for three-phase four-wire power lines
with neutral)
7.
key
Phase sequence detection function key. In the 3P4W mode, press and hold this
key to display the phase detection results as follows:
Normal phase
Reverse phase
8. HOLD key
Data hold function key, press HOLD key to freeze displayed reading (the HOLD icon
will appear). Press HOLD again to exit Hold function.
9.
Backlight function key, press to turn backlight on or off. The backlight will switch off
automatically after 30 seconds.
key
10. PF key
Press to view the power factor value (the PF icon is displayed)
11. Θ key
Press to view the measured phase angle value (ψ icon is displayed)
12. Hz key
Press to display the measured frequency (the Hz icon is displayed)
13. I4 key
Press to display the I4 current probe value (the I4 icon is displayed)
14. SET key
Press and hold the TIME key then press the SET key to enter the time set mode
and datalogger sampling rate set mode
15 TIME key
Press to display the current date and time
16.   Used when setting the date and time. Also used to recall manually recorded data
17. START key Press to start the automatic datalogging function
18. STOP key
Press to stop/pause the automatic datalogging function. Press START to resume
recording.
19. MEMORY
Press key to store one reading (set), the ‘M’ icon and the memory address will
display (total manual memory size is 99 sets)
20. READ key
Press to recall a manually stored data set
21. POWERPress to display the measured power. Use this button to cycle through the Pt123,
Qt123 and St123 displays
22. ENERGY
Press to display the total integrated power energy
23. KEY Lock
Press to lock all of the keys except the
24.
Power on-off key
key
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and
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Display Description
: Auto power off indicator
HOLD : Display hold mode
LOCK : Lock-out mode
BT
: Low battery indication
ψ: Phase angle display
: Phase angle unit of measure (degrees)
1P2W: Single-phase two-wire power line indicator
1P3W: Single-phase three-wire power line indicator
3P3W2M: Three-phase three-wire power line indicator
3P4W: Three-phase four-wire power line indicator
P1: Phase 1 active power indicator
P2: Phase 2 active power indicator
P3: Phase 3 active power indicator
Pt: Total active power indicator and total active energy indicator
KW: Active power unit of measure (kilo-watt)
KWh, MWh: Active energy units of measure (kilo-watt hours and Mega-watt hours)
PF1: Phase 1 power factor indicator
PF2: Phase 2 power factor indicator
PF3: Phase 3 power factor indicator
PFt: Total power factor indicator
I4: Current probe No. 4 measurement indicator
Hz: Frequency unit of measure (hertz)
DATA No.: Manually datalogged memory address (01~99)
M : Datalog record indicator; M displays momentarily each time a data set is recorded
DATA R No.: Memory address for recalled reading
DATA M : Auto datalogging indicator; M flashes each time a data set is recorded.
01 ~ 10: Memory blocks (20,000 max. data sets can be stored)
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FF: Memory full indicator (when 10 memory blocks or 20,000 readings are filled)
Q1: Phase 1 reactive power indicator
Q2: Phase 2 reactive power indicator
Q3: Phase 3 reactive power indicator
Qt: Total reactive power indicator and total reactive energy indicator
Kvar: Reactive power unit of measure
Kvarh, Mvarh: Reactive energy unit of measure
S1: Phase 1 apparent power indicator
S2: Phase 2 apparent power indicator
S3: Phase 3 apparent power indicator
St: Total apparent power indicator and total apparent energy indicator
KVA: Apparent power unit of measure (Kilo-volt/amps)
KVAh: Apparent energy unit of measure (kilo-volt amp hours)
MVAh: Apparent energy unit of measure (mega-volt amp hours)
TIME: Current date and time indication
Y-M D-h m-s: Date and time
INTV: Automatic datalogging sampling interval setting indicator
START: Energy calculation start-time indicator
STOP: Energy calculation stop-time indicator
U1, V, A: Single-phase two-wire (1P2W) U1 voltage and I1 current measurement
U1, V, A, U2, V, A: Single-phase three-wire (1P3W) U1, U2 voltage and I1, I2 current
measurement
U12, V, I1, A, U23, V, I2, A: Three-phase, three-wire, two-power method (3P3W2M); U12, U23
voltage and I1, I2 current measurement
U1, V, A, U2, V, A, U3, V, A: Three-phase, four-wire (3P4W) U1, U2, U3 voltage and I1, I2, I3
current measurement
V: Voltage unit of measure
A: Current unit of measure (ampere)
1000V: Voltage range indication
250A, 500A, 1000A: Current range indication (Autoranging)
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Operation
CAUTION: Turn the meter off before connecting to the equipment under test.
DANGER: Voltage input connectors U1 to U3 are common to input connector N. Input
connectors are not insulated; remove all unnecessary test leads.
DANGER: Voltage input connectors U1 to U3 are common to input connector
N. Input connectors are not insulated; remove all unnecessary test leads.
DANGER: Voltage input connectors U1 to U3 are common to input connector
N. Input connectors are not insulated; remove all unnecessary test leads.
WARNINGS
 Always set up the measurement first and then connect the test leads to the circuit.
 Make connections to the instrument first, before connecting leads to a live circuit.
 Connect the ground lead first and then the voltage leads and current probe; disconnect in
reverse order.
 Remove all test leads that are not in use.
Single-Phase 2-Wire (1P2W) Power System Measurement
U1 must be connected to the voltage source during the measurement of U2, U3, I1, I2 and I3 since U1
is the main signal source for the entire meter measurement system.
A: Line, N: Neutral, G: Ground;  Face the arrow toward the load.
1P2W Wiring Connection Diagram
1. Press
key to turn the meter on
2. Press the WIRING key to select 1P2W, the 1P2W annunciator will be displayed.
3. Connect the voltage test leads and current probe to the meter.
 Connect the black voltage test lead to the “N” terminal.
 Connect the red voltage test lead to the “U1” terminal.
 Connect the I1 current probe output plug to the “I1” jack.
 To measure ground leakage current, connect the I4 current probe output plug to the “I4” jack.
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4. Connect the voltage test leads and current probe to the electrical equipment under test.
CAUTION: Turn the meter off before connecting the voltage test leads
and the current probe to the electrical equipment under test.
 Connect the black voltage alligator clip to the Neutral Line “N”.
 Connect the red voltage alligator clip to Line “A”.
 Press the I1 current probe trigger to open the jaw and then fully enclose Line “A”.
 To measure ground leakage current, press the I4 current probe trigger to open the jaw and
then fully enclose the Ground Line “G”.
5. To measure frequency, press the “Hz” key.
To measure the phase angle, press the “Θ” key.
To measure the ground leakage current, press the “I4” key.
To measure the power factor, press the “PF” key.
6. To measure energy, press the “ENERGY” key, the “Pt”, “Qt”, “St” and “PFt” or “ψt” annunciators
and energy integration start time will display.
The energy integration value and the current time will continually update. Press the “  ” key to
pause the energy calculation; the HOLD annunciator will display. Press the HOLD key to exit the
energy measurement mode.
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Single-Phase 3-Wire (1P3W) Power System Measurement
U1 must be connected to the voltage source during the measurement of U2, U3, I1, I2 and I3 since U1
is the main signal source for the entire meter measuring system.
A, B: Line, N: Neutral, G: Ground;  Face the arrow toward the load.
1P3W Wiring Connection Diagram
1. Press the
key to turn the meter on
2. Press the WIRING key to select 1P3W, the 1P3W annunciator will display.
3. Connect the voltage test leads and the current probe to the meter.
 Connect the black voltage test lead to the “N” terminal.
 Connect the red voltage test lead to the “U1” terminal.
 Connect the yellow voltage test lead to the “U2” terminal.
 Connect the I1 current probe output plug to the “I1” jack.
 Connect the I2 current probe output plug to the “I2” jack.
 To measure ground leakage, connect the I4 current probe output plug to the “I4” jack.
4. Connect the voltage leads and current probe to the electrical equipment to be tested.
CAUTION: Turn the meter off before connecting the voltage test leads and
the current probe to the electrical equipment under test.
 Connect the black voltage alligator clip to the neutral line “N”.
 Connect the red voltage alligator clip to line “A”.
 Connect the yellow voltage alligator clip to line “B”.
 Press the I1 current probe trigger to open the jaw and then fully enclose Line “A”.
11
Press the I2 current probe trigger to open the jaw and then fully enclose Line “B”.
12
To measure ground leakage current, press the I4 current probe trigger to open the jaw and
then fully enclose the ground line “G”.
5. Use the POWER key to select (P1, Q1, S1, PF1), (P2, Q2, S2, PF2) and (Pt, Qt, St, PFt).
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6. To measure frequency, press the “Hz” key.
To measure phase angle, press the “Θ” key.
To measure ground leakage current, press the “I4” key.
To measure power factor, press the “PF” key.
7. To measure energy, press the “ENERGY” key, the “Pt”, “Θt”, “St” and “PFt” or “ψt” annunciators
and the energy integration start time will display. The energy integration value and the current
time will be continually updated, press the “  ” key to pause the energy calculation; the HOLD
annunciator will display. Press HOLD to exit the energy measurement mode.
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Three-Phase 3-Wire (3P3W) Power System Measurement
U1 must be connected to the voltage source during the measurement of U2, U3, I1, I2 and I3 since U1
is the main signal source of the entire meter measurement system.
A, B, C: Line, G: Ground;  Face the arrow toward the load
3P3W Wiring Connection Diagram
1. Press the
key to turn the meter on.
2. Press the WIRING key to select 3P3W2M; the 3P3W2M annunciator will display.
3. Connect the voltage test leads and current probe to the meter.
 Connect the black voltage test lead to the “N” terminal.
 Connect the red voltage test lead to the “U1” terminal.
 Connect the yellow voltage test lead to the “U2” terminal.
 Connect the I1 current probe output plug to the “I1” jack.
 Connect the I2 current probe output plug to the “I2” jack.
4. Connect the voltage test leads and current probe to the electrical equipment to be tested.
CAUTION: Turn the meter off before connecting the voltage test leads and
the current probe to the electrical equipment under test.
 Connect the black voltage alligator clip to the line “B”.
 Connect the red voltage alligator clip to the line “A”.
 Connect the yellow voltage alligator clip to the line “C”.
 Press the I1 current probe trigger to open the jaw, and then fully enclose Line “A”.
 Press the I2 current probe trigger to open the jaw, and then fully enclose the Line “C”.
5. Use the POWER key to select (P1, Q1, S1, PF1), (P2, Q2, S2, PF2) & (Pt, Qt, St, PFt)
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6. To measure frequency, press the “Hz” key.
To measure phase angle, press the “Θ” key.
To measure power factor, press the “PF” key.
7. To measure energy, press the “ENERGY” key, the “Pt”, “Θt”, “St” and “PF” or “ψt” annunciators
and the energy integration start time will display. The energy integration value and the current
time will continually update, press “  ” key to pause the energy calculation; the HOLD
annunciator will display. Press HOLD to exit the energy measurement mode.
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Three-Phase 4-Wire (3P4W) Power System Measurement
U1 must be connected to the voltage source during the measurement of U2, U3, I1, I2 and I3 since U1
is the main signal source of the entire meter measuring system.
A, B, C: Line, N: Neutral, G: Ground;  Face the arrow toward the load.
3P4W Wiring Connection Diagram
1. Press the
key to turn the meter on.
2. Press the WIRING key to select 3P4W; the 3P4W annunciator will display.
3. Connect the voltage test leads and the current probe to the meter.
 Connect the black voltage test lead to the “N” terminal.
 Connect the red voltage test lead to the “U1” terminal.
 Connect the yellow voltage test lead to the “U2” terminal.
 Connect the blue voltage test lead to the “U3” terminal.
 Connect the I1 current probe output plug to the “I1” jack.
 Connect the I2 current probe output plug to the “I2” jack.
 Connect the I3 current probe output plug to the “I3” jack.
 Connect the I4 current probe output plug to the “I4” jack.
4. Connect the voltage test leads and current probe to the electrical equipment to be tested.
CAUTION: Turn the meter off before connecting the voltage test leads and the current probe
to the electrical equipment under test.
 Connect the black voltage alligator clip to the neutral line “N”.
 Connect the red voltage alligator clip to line “A”.
11
Connect the yellow voltage alligator clip to line “B”.
12
Connect the blue voltage alligator clip to line “C”.
13
Press the I1 current probe trigger to open the jaw and then fully enclose Line “A”.
14
Press the I2 current probe trigger to open the jaw and then fully enclose Line “B”.
15
Press the I3 current probe trigger to open the jaw and fully enclose Line “C”.
16
Press the I4 current probe trigger to open the jaw and fully enclose neutral line “N”.
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382090 382091-EN V4.1 07/13
5. Press the POWER key to select (P1, Q1, S1, PF1), (P2, Q2, S2, PF2), (P3, Q3, S3, PF3) or
(Pt, Qt, St, PFt) groups.
6. To measure frequency, press the “Hz” key.
To measure phase angle, press the “Θ” key.
To measure neutral line current, press the “I4” key.
To measure power factor, press the “PF” key.
7. To measure energy, press the “ENERGY” key, the “Pt”, “Θt”, “St” and “PF” or “ψt” annunciators
and the energy integration start time will display. The energy integration value and the current
time will continually display, press the “  ” key to pause the energy calculation; the HOLD
annunciator will display. Press the HOLD key to exit the energy measurement mode.
I4 Current Measurement
1. Press the
key to turn the meter on.
2. Press the “I4” key.
3. Connect the I4 current probe output plug to the “I4” jack.
4. Press the I4 current probe trigger to open the jaw and then fully enclose the desired measured wire.
5. Read the I4 value, if the measured current value is greater than 250A, the “OL” symbol will appear.
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Manual Datalogger Record and Recall Mode
Clear memory data
1. Press the
key to turn the meter off.
key again to turn the meter on; the
2. Press and hold the MEMORY key and then press the
“CLr” annunciator will display and all the manually logged data will be erased.
Manually record data
1. Press the MEMORY key once to store one reading (1 set). The M annunciator will display
momentarily along with the memory address.
2. Memory size for the manually recorded data is 99 sets max.
Recall manually stored data
1. Press the READ key and the R annunciator will display.
2. Use the keys to scroll through the stored data; the location (address) for each data will also
display.
3. Press the “  ” key to exit the recall mode.
Automatic Datalogging
Clearing memory data
As a safeguard against accidentally deleted logged data the Power Analyzer memory can only be
cleared through the software.
Please refer to the software operation section for instructions to clear the data.
Setting the Calendar Clock and the Automatic Datalogging Sampling Interval
1. Press the TIME key and then quickly press the SET key. Seconds will start blinking.
2. Use the  keys to set the current YEAR-month, DAY-hour, minutes-seconds
3. Press the “  ” key to access the sampling interval mode; the “INTV” annunciator will display.
4. Use the  keys to select the sampling interval (5 seconds, 30 seconds, 1 minute or 2
minutes).
5. Press the  key to exit this mode.
Automatic Datalogging Operation
1. Press the START key to begin automatic datalogging: DATA M (block number) will display.
The M annunciator will appear each time a reading is recorded.
2. Press the STOP key to pause logging; press START to resume.
3. Data can be recorded in up to 10 memory blocks; the current block number is displayed while
logging (the maximum recording capacity is 20,000 readings).
4. When the maximum block or maximum reading limit is reached, the “FF” annunciator will be
displayed and datalogging will stop.
Downloading Data to a PC
Please refer to the software operation section for data download instructions..
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Phase Sequence Measurements
1. Press the
key to turn the meter on.
2. Use the WIRING key to select 3P4W.
3. Connect the voltage test leads to the meter.
 Connect the red voltage test lead to the “U1” terminal.
 Connect the yellow voltage test lead to the “U2” terminal.
 Connect the blue voltage test lead to the “U3” terminal.
4. Connect the voltage test leads to the electrical equipment to be tested.
CAUTION: Turn the meter off before connecting the voltage test leads and the current probe
to the electrical equipment under test.
 Connect the red voltage alligator clip to power line “A” phase.
 Connect the yellow voltage alligator clip to power line “B” phase.
 Connect the blue voltage alligator clip to power line “C” phase.
5. U1, U2 and U3 measured voltages must be greater than 30V.
 Press and hold the “
” key.
” annunciator is displayed.
 If the phase sequence is clockwise, the “
 If the phase sequence is counter-clockwise, the “
 Release the “
” annunciator is displayed.
” key to exit this measurement mode.
Voltage/Current Waveform and Harmonic Analyzer
Please refer to the software operation section for waveform and harmonic measurement details.
Disabling the Auto Power-Off Feature
The meter automatically enters the sleep mode after approx. 30 minutes to conserve battery power.
1. To disable this feature:
 Press the
key to turn the meter off.
 Press and hold the HOLD key and then press the
power off symbol “
key to turn the meter on. The auto
” will switch off indicating Auto Power off is disabled.
2. The Auto power off mode is enabled each time the meter is turned on. It is automatically disabled
in the following modes:
 ENERGY mode
 Automatic datalogging
 When Meter is connected to PC
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RS-232 PC Interface and Software Program
Connect the Optical Interface connector to the 382090 Power Analyzer (middle pin is keyed for correct
orientation). Connect the 9-pin female connector to the 9-pin serial PC port (COM1 or COM2).
This meter has the capability to connect to and communicate with a PC. To install and use the
software, please refer to the instructions provided on the supplied CD-ROM and/or the instructions
provided in the HELP Utility within the software program. Instructions on using the software are
included on the CD-ROM. Open the file 382090 Software Manual.pdf to access the manual.
Check the software download page of the website www.extech.com for the latest version of the PC software and its operating system compatibility. Installing the Windows Application Program
1. Place the supplied software CD in the PC CD-ROM drive
2. Wait for “Autorun” to start and follow the on-screen instructions
3. If “Autorun” does not start, click on “Start” then “Run”. Type the drive letter of the CD-ROM and
:\VB\Disk1\Setup.exe and click OK (To install the LabVIEW version, type the drive letter and
:\LV\installer\Setup.exe and click OK).
4. Change the path if necessary or choose install the program to its default location.
5. Launch the program by double clicking the program file in the location where it was saved
during installation.
6. Remember not to run the supplied software until the meter is properly connected to the PC as
described earlier.
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Specifications
General Specifications
Maximum voltage between voltage input terminals and earth ground: 1000 Vrms
Maximum rated working voltage for current input: 0.35Vrms
Maximum current for current probe: 1000A rms
Display:
Ten (10) 4-digit LCD displays (maximum reading 9999)
Batteries
8pcs, 1.5VAA
Battery life:
approx. 50 hours
AC Adaptor
12V DC, 300mA
Auto power off:
After approx. 30 minutes
BT is displayed when battery voltage falls low
Low battery indication:
Backlight display time:
Automatically turns off approx. 30 seconds
Sampling rate:
Approx. 1 display update every 2 seconds (digital display)
Waveform and harmonic analyzer:
54 samples per period
Current probe jaw opening diameter: Cables ψ40mm
o
o
Operating temperature and humidity: 32 to 104 F (0 to 40 C); R.H. <80% non-condensing
o
o
Temperature coefficient:
0.1  (specified accuracy) / <64 or >82 F (<18 or >28 C)
o
o
Storage temperature and humidity: 14 to 140 F (-10 to 60 C); R.H. < 70% non-condensing
Dimensions (meter):
9.2(L) x 4.6(W) x 2.1(H)”; [235(L)  117(W)  54(H)mm]
Dimensions (Current probes): 7.6(L) x 3.5(W) x 1.6(H)”; [193(L)  88(W)  40(H)mm]
Weight: Meter: approx.
25.8 oz (730g); Current probe: approx. 11.6oz (333g)
This meter is intended for indoor use and protected, against the users, by double
Safety
insulation per EN61010-1 and IEC61010-1 2nd Edition (2001) to CAT III 1000V;
Pollution Degree 2. The meter also meets UL 61010A-1, First Edition
UL Listed
The UL mark does not indicate that this product has been evaluated for the
accuracy of its readings.
Per IEC1010 Measurement Installation Category
MEASUREMENT CATEGORY I: Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in
which measures are taken to limit the transient overvoltages to an appropriate low level. Note – Examples include
protected electronic circuits.
MEASUREMENT CATEGORY II: Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be
supplied from the fixed installation.
Note – Examples include household, office, and laboratory appliances.
MEASUREMENT CATEGORY III: Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.
Note – Examples include switches in the fixed installation and some equipment for industrial use with permanent
connection to the fixed installation.
MEASUREMENT CATEGORY IV: Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the
installation.
Note – Examples include electricity meters and primary over-current protection equipment
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382090 382091-EN V4.1 07/13
Electrical Specifications
o
o
Accuracy: ± (% of reading + number of digits) at 64 to 82 F (18 to 28 C) with relative humidity to
80%
AC Voltage True rms measurements (V)
Range
999.9V
Resolution
Accuracy
Input
impedance
Overload
protection
Nominal
frequency
0.1V
± (0.5%rdg + 10d)
(>80V)
2MΩ
1000Vrms
50Hz (382091)
60Hz (382090)
Note: Minimum Voltage; 50V (0V displayed below 50V)
 Display: RMS voltage value for each channel
AC Current True rms Measurement (A) Autoranging
Ranges
Resolution
250.0A
500.0A
999.9A
0.1A
Accuracy
(including current
probe)
Current probe Overload
output
protection
±(2%rdg + 20d)
0.35mV/A
1000Arms
Nominal
frequency
50Hz (382091)
60Hz (382090)
Note: Minimum Current; 3A (0A displayed below 3A)
 Display: RMS current value for each channel
Active Power measurement P (KW)
Range
Resolution
Accuracy (PF=1)
Power factor influence (PF=0.5)
999.9KW
0.1KW
± (1.5%rdg + 20d)
± (1%rdg + 10d)
 Display: Active power of each channel and the sum of multiple channels
 Polarity display: For influx (consumption) no symbol; For outflow (regenerative) “ - ” sign
Apparent Power measurement S (KVA)
Range
Resolution
Accuracy (PF=1)
Power factor influence (PF=0.5)
999.9KVA
0.1KVA
± (1.5%rdg + 20d)
± (1%rdg + 10d)
 Measurement method: Calculated from RMS voltage U and RMS current I.
 Displays: Apparent power of each channel and the sum of multiple channels.
 Polarity display: Positive assumed
Reactive Power measurement Q (KVAR)
Range
Resolution
Accuracy (PF=1)
Power factor influence
(PF=0.5)
999.9KVAR
0.1KVAR
± (1.5%rdg + 20d)
± (1%rdg + 10d)
 Measurement method: Calculated from apparent power S and active power P.
 Displays: Reactive power of each channel and the sum of multiple channels.
 Polarity display: For phase lag (LAG) current is behind voltage: No symbol. For LEAD phase
(LEAD: current ahead of voltage): “-” sign
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382090 382091-EN V4.1 07/13
Power Factor measurement (COSψ)
Range
Resolution
Accuracy
-1 ~ 0 ~ +1
0.001
± (3%rdg + 30d)
 Measurement method: Calculated from apparent power S and active power P.
 Displays: Power factor of each channel and the sum of multiple channels.
 Polarity display: For phase lag (LAG) current is behind voltage: No symbol; for phase lead
(LEAD) current is ahead of voltage: “-” sign
Phase angle measurement (ψ)
Range
Resolution
Accuracy
>50A: ± 3°+ 30digits,
±11° to 90°
0.1°
25 to 50A: ± 4° + 40digits
(<25A unspecified)
 Measurement method: Calculated from power factor COSψ
 Display item: Phase angle of each channel and the sum of multiple channels.
 Polarity display: For phase lag (LAG: current is behind voltage): No symbol. For phase lead
(LEAD: current is ahead of voltage): “-”.
Frequency measurement (Hz)
Range
60HZ
Resolution
0.01Hz
Accuracy
(0.5%rdg + 1d)
Measurement source
Voltage U1 > 80V
 Measurable input range : > 30V
Three Phase Sequence Detection
Input voltage range Normal phase indication Reverse phase indication
3P > 30V
Meas. source
U1, U2 and U3
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382090 382091-EN V4.1 07/13
Active Power Energy measurement (KWh)
Active power
Range
Resolution
accuracy
3.999KWh
0.001KWh
39.99KWh
0.01KWh
399.9KWh
0.1KWh
3.999MWh
0.001MWh
39.99MWh
0.01MWh
119.3MWh
0.1MWh
Timer interval
Timer Accuracy
1 sec
± 50ppm at 77 F
o
(25 C)
o
± (1.5%rdg + 20d)
 Measurement display: Displays total active power consumption
Apparent Power Energy measurement (KVAh)
Apparent power
Range
Resolution
accuracy
3.999KVAh
0.001KVAh
39.99KVAh
0.01KVAh
399.9KVAh
0.1KVAh
3.999MVAh
0.001MVAh
39.99MVAh
0.01MVAh
119.3MVAh
0.1MVAh
Timer interval
Timer Accuracy
1 sec
± 50ppm at 77 F
o
(25 C)
o
± (1.5%rdg + 20d)
 Measurement display: Displays total apparent power energy (sum of absolute values).
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382090 382091-EN V4.1 07/13
Reactive Power Energy measurement (Kvarh)
Range
Resolution
3.999Kvarh
0.001Kvarh
39.99Kvarh
0.01Kvarh
399.9Kvarh
0.1Kvarh
3.999Mvarh
0.001Mvarh
39.99Mvarh
0.01Mvarh
119.3Mvarh
0.1Mvarh
Reactive power
accuracy
Timer interval
Timer Accuracy
(1.5%rdg + 20d)
1 sec
±50ppm at 77 F (25 C)
o
o
 Measurement display: Displays total reactive power consumption
Harmonic measurement (for use with PC on-line analyzer only)
Order
Accuracy
Harmonic Source
No. of samples
per period
1 ~ 27
3%THD
U1, U2, U3 > 100V; I1, I2, I3 > 50A
54
Probes and Accessories
Current Clamp (4pcs)
Input
Output
Safety
1000A AC maximum
0.35mV/A
CAT III 600V per IEC61010-1, Pollution Degree2.
: IEC 61010-1 2nd Edition and IEC61010-2-032
Voltage Test Leads (4pcs)
Safety
CAT III, 1000V, AC 10A Max
Alligator Clips (4pcs)
Safety
CAT III, 1000V, AC 10A Max
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382090 382091-EN V4.1 07/13
Maintenance
Cleaning
Periodically wipe the case with a dry cloth. Do not use abrasives or solvents.
Battery Replacement
WARNING: To avoid electrical shock, remove the test leads and current probe
before replacing the batteries.
1. The LCD will display
levels.
BT
(low battery) when the battery power falls below proper operating
2. Disconnect all test leads and current probes and press the
key to turn the meter off.
3. The battery cover is secured at the bottom of the meter case by two screws. Remove these
screws to access the battery compartment.
4. Replace the batteries observing polarity and reassemble the meter.
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382090 382091-EN V4.1 07/13
Warranty FLIR Systems, Inc. warrants this Extech Instruments brand device 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 for authorization. Visit the website www.extech.com for contact information. A Return Authorization (RA) number must be issued before any product is returned. The sender is responsible for shipping charges, freight, insurance and 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 modification. FLIR Systems, Inc. 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. FLIR’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. Calibration, Repair, and Customer Care Services FLIR Systems, Inc. offers repair and calibration services for the Extech Instruments products we sell. NIST certification for most products is also provided. Call the Customer Service Department for information on calibration services available for this product. Annual calibrations should be performed to verify meter performance and accuracy. Technical support and general customer service is also provided, refer to the contact information provided below. Support Lines: U.S. (877) 439‐8324; International: +1 (603) 324‐7800 Technical Support: Option 3; E‐mail: support@extech.com Repair & Returns: Option 4; E‐mail: repair@extech.com Product specifications are subject to change without notice Please visit our website for the most up‐to‐date information www.extech.com FLIR Commercial Systems, Inc., 9 Townsend West, Nashua, NH 03063 USA ISO 9001 Certified Copyright © 2013 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form www.extech.com 26
382090 382091-EN V4.1 07/13