Extech Instruments 382090 Manual de usuario

User's Guide

1000A 3-Phase Power Analyzer/Datalogger

Model 382090 (60Hz)

Model 382091 (50Hz)

382090 382091 V4.0 09/07

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 V4.0 09/07

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.

382090 382091 V4.0 09/07

Installation Safety

CAUTION

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

ranging from 32 to 104oF (0 to 40oC).

•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.

382090 382091 V4.0 09/07

Analyzer Description

382090 382091 V4.0 09/07

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 2-current 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. key Backlight function key, press to turn backlight on or off. The backlight will

switch off automatically after 30 seconds.

10. PF key Press to view the power factor value (the PF icon is displayed)

11. Θkey Press to view the measured phase angle value (ψicon 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 and keys

24. key Power on-off key

382090 382091 V4.0 09/07

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)

FF: Memory full indicator (when 10 memory blocks or 20,000 readings are filled)

382090 382091 V4.0 09/07

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)

382090 382091 V4.0 09/07

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.

382090 382091 V4.0 09/07

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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