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EB-LP

更新时间： 2024-11-25 06:55:31

品牌	Logo	应用领域
村田 - MURATA		/
页数	文件大小	规格书
2页	95K
描述
4-20mA Current Loop Application Board for DMS-30LCD Meters

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EB-LP 数据手册

www.datel.com

DMS -EB-LP

4-20mA Current Loop

Application Board for

DMS-30LCD Meters

Actual Size

Features

Technical Notes

Description: The DMS-EB-LP was specifically designed for 4-to-20mA current-loop

process-monitoring applications. The board simply mounts onto the rear of a DMS-

30LCD-1-5, allowing both the application board and the meter to be powered solely from

the 4-to-20mA loop input. Align pin 1 of the board with pin 1 of the DMS-30LCD-1-5 and

simply solder the two assemblies together.

•

Loop-powered, no external

supply required

Includes gain (span) and offset (zero)

adjustments

Range and decimal point settings are

DIP-switch selectable

Features: Gain (span) and offset (zero) adjustments are both performed using precision,

22-turn potentiometers. Decimal point selections and range changes are all made on an

eight-position DIP switch featuring gold-plated contacts — there are no cumbersome

jumpers or solder gaps to contend with! Connections to the loop are made via a reliable,

screw-type terminal block. The only assembly tool required is a screwdriver!

•

Covers hundreds of different ranges

Reliable screw-terminal connections

Low cost

Applications: The DMS-EB-LP's design accommodates hundreds of different display

reading combinations.This essentially

eliminates the need to order "specials" in

Functional Specifications

(TA = +25°C)

applications in which several different-

range meters are required. OEM

customers should consider using

DATEL's new DMS-30LCD-4/20S which

already has the DMS-EB-LP soldered to

a rugged DMS-30LCD-1-5 digital

voltmeter.

R10

Zero

Adjust

SW1

R12

Full Scale Input

4mA to 20mA

SG10

TB2

TB1

–

Gain

Adjust

SG9

RJ4

Voltage Drop

7.5V, maximum

Input Resistance

550Ω, nominal

Accuracy

±0.05%FS ±1 count

+5V

SUPPLY

(–) INPUT LO

V+

Operating Temperature Range

0 to +60°C

(+) INPUT HI

V–

CAP+

2.2µF

10V

BOOST

R10

10k

ANALOG

COMMON

RETURN

Temperature Drift

±100ppm/°C, typical

CAP–

2.2µF

10V

2.21k

698

GND

DP3

DP2

DP1

Storage Temperature Range

–20 to +75°C

Gain Adjust

Humidity

0 to 95%, non-condensing

RLZ5231

LM4041

REF. IN

2.94k

Dimensions

2.02" (51.31mm)L x 0.83" (21.08mm)W

2.2µF, 10V

R12

SW1

TB1 Wire Size and Strip Length:

18 to 26 AWG (solid or stranded)

Strip Length 0.20" (5.08mm)

90.9

RJ4

90.9

26.7

Ordering Information

TB1

10.5

DMS-EB-LP

DMS-BZL1

DMS-BZL2

Current loop board

Bezel assembly

Bezel assembly with

sealing gasket

Zero Adjust

–

LOOP

RETURN

LOOP

INPUT

4-20mA

Figure 1. DMS-EB-LP Schematic Diagram

DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 Email:sales@datel.com • Internet: www.datel.com

•

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