Laurel-electronics Laureate Digital Panel Meter for DC Voltage or Cur Bedienungsanleitung PDF herunterladen

LAUREL

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

LAUREL

ELECTRONICS, INC.

Laureate™ Digital Panel Meter

for DC Voltage or Current

Features

• Selectable ±0.2, ±2, ±20, ±200, ±300 & ±600 Vdc voltage ranges

• Selectable ±2, ±20, ±200 mA and ±5A dc current ranges

• All ranges factory calibrated

• 99.99% full scale accuracy

• Scalable to ±99,999 for use with external current shunts

• Up to 60 conversions per second

• Peak or valley capture & display

• Selectable adaptive digital filter

• Universal AC power: 85-264 Vac

• Built-in isolated excitation supply: 5, 10 or 24 Vdc

• 1/8 DIN case sealed to NEMA-4X from front panel

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

• Optional relay output: 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

Laureate™ DC voltage and current panel meters with a DC

signal conditioner board combine high accuracy with high read

rate and a wide range of isolated output options for computer

interface and control. Accuracy is 99.99% of full scale ±2 counts.

•

DC voltmeter operation (selected by jumpers) provides and

six full-scale voltage ranges from ±200.00 mV with 10 mV

resolution to ±600.0V with 100 mV resolution. The 200.00 mV

and 2.0000V ranges provide a 1 Gohm high input impedance.

•

DC ammeter operation (selected by jumpers) provides four

full-scale current ranges from ±2.0000 mA with 0.1 mA reso-

lution to ±5.000 A with 1 mA resolution. The 5.000A range

measures the IR drop across a built-in 10 milliohm current

shunt.

All voltage and current ranges are factory calibrated, with

calibration factors for each range stored in an EEPROM on the

signal conditioner board. This allows ranges and signal condi-

tioner boards to be changed in the field without recalibrating the

meter.

External current shunts are fully supported. Scaling from full-

scale millivolts, such as 50 mV or 100 mV, to amperes is easily

accomplished from the front panel of the meter. The scalable

display is five full digits up to ±99,999 counts.

High read rates at up to 60 or 50 conversions per second while

integrating the signal over a full power cycle are provided by

Concurrent Slope (US Pat 5,262,780) analog-to-digital conver-

sion. High read rates are ideal for peak or valley capture, real-

time computer interface, and control. Peak and valley values are

automatically captured. These may be displayed via a front panel

pushbutton command or a control signal at the rear connector, or

be transmitted as serial data.

Digital filtering is selectable for electrically noisy environments,

including a batch averaging filter and an adaptive moving aver-

age filter which provides a choice of 8 time constants from 80 ms

to 9.6 s. When a significant change in signal level occurs, that

filter adapts by briefly switching to the shortest time constant to

follow the change, then reverts back to the selected time con-

stant. In a selectable Auto filter mode, the filter time constant is

automatically selected based on detected signal noise.

Designed for system use. Optional plug-in boards include

Ethernet and other serial communication boards, dual or quad

relay boards, and an isolated analog output board. 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) specifications from the

front when panel mounted. Any setup functions and front panel

keys can be locked out for simplified usage and security. A built-

in isolated 5, 10, or 24 Vdc excitation supply can power trans-

ducers and eliminate the need for an external power supply. All

power and signal connections are via UL / VDE / CSA rated

screw clamp plugs.

1 2 3 4

Inhaltsverzeichnis

Seite 1 - Laureate™ Digital Panel Meter

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

Seite 2 - Specifications

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

Seite 3 - Mechanical

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 3 Isolation 250V rms wo

Seite 4 - Ordering Guide

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

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Laurel-electronics Laureate Digital Panel Meter for DC Voltage or Cur Bedienungsanleitung

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