Laurel-electronics Laureate AC Power Factor Meter & AC Phase Angl User Manual download pdf

LAUREL

ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 1

LAUREL

ELECTRONICS, INC.

Laureate™

AC Power Factor Meter

& AC Phase Angle Meter

Features

• Programmable to read phase angle or power factor with two waveshapes of

identical period

• Reads phase angle with resolution of 1°, 0.1° or 0.01° and accuracy of 0.05°

at AC line frequency

• Reads power factor from 1.000 to 0.000 with sinusoidal signals

• Accepts AC signals from 1 Hz to 10 kHz, AC line voltages up to 250 Vrms

• Universal AC power Input, 85-264 Vac

• NEMA 4X, 1/8 DIN case

• Optional serial I/O: Ethernet, USB, RS232, RS485, Ethernet-to-RS485 converter

• Optional relay outputs: dual or quad relays, contact or solid state

• Optional isolated analog output: 4-20 mA, 0-20 mA, 0-10V, -10 to +10V

• Optional low voltage power: 10-48 Vdc or 12-32 Vac

Description

AC Phase Angle Measurement

The Laureate™ Phase Angle & Power Factor Meter computes

phase angle θ by timing zero crossings of two signals applied to

Channels A and B. The phase angle range is selectable as 0° to

360° or -180° to +180°. Resolution is selectable as 1°, 0.1° or

0.01°. Typical accuracy is 0.01% from 1 Hz to 100 Hz, 0.1% at 1

kHz, and 1% at 10 kHz.

Phase angle in degrees indicates the phase lead or lag bet-

ween two periodic signals of the same period, as determined

from their zero crossings. These two signals will typically be the

voltage and current applied to a load. As illustrated, the phase

angle θ in degrees is +360*P1/P.

AC Power Factor Measurement

The Laureate™ Phase Angle & Power Factor Meter computes

power factor as cos(θ) from phase angle θ. Power factor read-

ings can range from 1.000 to 0.000 with three decimal places

and an accuracy of 0.1% for sinusoidal signals at 50/60 Hz power

line frequency. While power factor is always positive, the meter

artificially assigns a minus sign to power factor for negative

phase angles, and it sets power factor to 0 for phase angles

greater than 90°.

The power factor of an AC power system is the ratio of real

power in watts (W) divided by apparent power in volt-amperes

(VA). For sinusoidal signals differing by a phase angle power

factor will be cos(θ).

Designed for flexibility

The Laureate Phase Angle & Power Factor Meter utilizes the

Laureate Extended counter main board and the FR dual-channel

signal conditioner board, which accepts AC signals from 12 mV

p-p to 250 Vrms. Optional plug-in boards for communications and

control include Ethernet and other serial communication boards,

dual or quad relay boards, and single or dual isolated analog

output boards.

Laureates may be powered from 85-264 Vac or optionally from

12-32 Vac or 10-48 Vdc. The display is available with red or

green LEDs. The 1/8 DIN case meets NEMA 4X (IP65) specifi-

cations from the front when panel mounted. Any setup functions

and front panel keys can be locked out for simplified usage and

security. All power and signal connections are via UL / VDE /

CSA rated screw clamp plugs.

1 2 3 4 5

Summary of Contents

Page 1 - & AC Phase Angle Meter

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 1 LAUREL ELECTRONICS, I

Page 2 - Specifications

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2 Specifications Phase A

Page 3 - Mechanical

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 3 Serial Data I/O (opti

Page 4

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 4 Application Examples O

Page 5 - Ordering Guide

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 5 Ordering Guide Create

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Laurel-electronics Laureate AC Power Factor Meter & AC Phase Angl User Manual

Browse online or download User Manual for Hardware Laurel-electronics Laureate AC Power Factor Meter & AC Phase Angl. Laurel Electronics Laureate AC Power Factor Meter &amp; AC Phase Angle Meter User Manual [en]

Summary of Contents

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