Extech 382090 Operating Manual

User's Guide

1000A 3-Phase Power Analyzer/Datalogger

Model 382090 (60Hz) Model 382091 (50Hz)

1 2

3 4

NO.

U3 m- sU12 Y-M U23 D-h

£c

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. 210 for authorization or visit our website www.extech.com for contact information. A Return Authorization (RA) number must be issued before any product is returned to Extech. 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. 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 or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied.

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 4-wire 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

382090 382091 V1.6 12/04

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

NOTE:

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.

Denotes items of advice related to the performance of the meter or to its

correct operation.

382090 382091 V1.6 12/04

Installation Safety

CAUTION

• The meter is designed for indoor use and can be safely used at temperatures

ranging from 32 to 122

• 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

F (0 to 50oC).

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.

382090 382091 V1.6 12/04

Specifications

Environmental Conditions

 Installation categories III

 Pollution degree

 Altitude up to 2000 meters

 Indoor use only

 Relative humidity 80% max.

 Operational ambient temperature 32 to 122

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)

Battery life: approx. 50 hours

Auto power off: After approx. 30 minutes

Low battery indication:

is displayed when battery voltage falls low

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

Operating temperature and humidity: 32 to 122

Temperature coefficient: 0.1 × (specified accuracy) / <64 or >82

Storage temperature and humidity: 14 to 140 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)

Safety For indoor use and in accordance with the requirements for double insulation to

IEC1010-1 (1995): EN61010-1 (1995) Overvoltage Category III 1000V, Pollution Degree 2.

F (0 to 50oC)

F (0 to 50oC); R.H. <80% non-condensing

F (<18 or >28oC)

F (-10 to 60oC); R.H. < 70% non-

382090 382091 V1.6 12/04

Electrical Specifications

Accuracy: ± (% of reading + number of digits) at 64 to 82

F (18 to 28oC) with relative

humidity to 80%

AC Voltage True rms measurements (V)

Range Resolution Accuracy

999.9V 0.1V

± (0.5%rdg + 10d)

(>80V)

Input

impedance

2MΩ 1000Vrms

Overload

protection

Nominal

frequency

50Hz (382091) 60Hz (382090)

• Display: RMS voltage value for each channel

AC Current True rms Measurement (A) Autoranging

Ranges Resolution

(including current

probe)

Accuracy

250.0A

500.0A

0.1A

999.9A Display: RMS current value for each channel

•

±(2%rdg + 20d)

Current probe

output

0.35mV/A 1000Arms

Overload

protection

Nominal

frequency

50Hz (382091) 60Hz (382090)

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

382090 382091 V1.6 12/04

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

+90°~ 0°~ -90° 0.1° ± 3°

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 Resolution Accuracy Measurement source

60HZ 0.01Hz

Measurable input range : > 30V

•

(0.5%rdg + 1d)

Voltage U1 > 80V

Three Phase Sequence Detection

Input voltage range Normal phase indication Reverse phase indication Meas. source

3P > 30V

U1, U2 and U3

Active Power Energy measurement (KWh)

Range Resolution

Active power

accuracy

Timer interval Timer Accuracy

3.999KWh 0.001KWh

39.99KWh 0.01KWh

399.9KWh 0.1KWh

3.999MWh 0.001MWh

± (1.5%rdg + 20d) 1 sec

± 50ppm at 77

(25

39.99MWh 0.01MWh

119.3MWh 0.1MWh

Measurement display: Displays total active power consumption

•

Apparent Power Energy measurement (KVAh)

Range Resolution

Apparent power

accuracy

Timer interval Timer Accuracy

3.999KVAh 0.001KVAh

39.99KVAh 0.01KVAh

399.9KVAh 0.1KVAh

3.999MVAh 0.001MVAh

± (1.5%rdg + 20d) 1 sec

± 50ppm at 77

(25

39.99MVAh 0.01MVAh

119.3MVAh 0.1MVAh

Measurement display: Displays total apparent power energy (sum of absolute values).

•

382090 382091 V1.6 12/04

Reactive Power Energy measurement (Kvarh)

Range Resolution

Reactive power

accuracy

3.999Kvarh 0.001Kvarh

39.99Kvarh 0.01Kvarh

Timer interval Timer Accuracy

399.9Kvarh 0.1Kvarh (1.5%rdg + 20d)

1 sec ±50ppm at 77

3.999Mvarh 0.001Mvarh

39.99Mvarh 0.01Mvarh

119.3Mvarh 0.1Mvarh

Measurement display: Displays total reactive power consumption

•

Harmonic measurement (for use with PC on-line analyzer only)

Order Accuracy Harmonic Source

1 ~ 27

3%THD

U1, U2, U3 > 100V; I1, I2, I3 > 50A 54

F (25oC)

No. of samples

per period

382090 382091 V1.6 12/04

Analyzer Description

NO.

U12 Y-M

U1 U2 U3

U23 D-h

¢»

U3 m -s

£c

382090 382091 V1.6 12/04

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