DMS-30PC-4/20S-24RS-I 查看數據表（PDF） - DATEL Data Acquisition products

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DMS-30PC-4/20S-24RS-I

4-20mA Input 3½ Digit Panel Meters with Full-Size LED Displays

DATEL Data Acquisition products  

®

®

Order on-line at

www.datel.com

Now available with

brilliant blue LED's!

DMS-30PC-4/20S

4-20mA Input

3½ Digit Panel Meters

with Full-Size LED Displays

New +24V Isolated-Power Models

Features

• Full-size, 0.56" (14.2mm), red , blue or green LED's

• Low-power or high-intensity LED's optional

• Single +5V or optional +7.5-32V supply

• +24V Isolated-power models

• Low power consumption, 15mA from +5V

• 100Ω impedance, 2V loop drop

• DIP-switch selectable range and

decimal points

• Hundreds of different input/readout

combinations

• Vibration-resistant package; Reliable

screw-terminal input connections

• High-quality, 20-turn, gain/span and

zero/offset adjust potentiometers

• Miniature size: 2.17" x 0.92" x 1.02"

55mm x 23mm x 27mm

The DMS-30PC-4/20S Series of 4-20mA current-loop-input, 3½ digit, LED display

panel meters offer an outstanding combination of electrical performance, display

readability, ease-of-use, and long-term reliability. Each of the 5 models features a

large (0.56"/14.2mm), red, blue or green, LED display. Low-power or high-intensity

red models are optional. Power supplies can be a single +5V or an optional, wide-

range +7.5-32V (24V nominal). All DMS-30PC-4/20S meters are constructed using

DATEL's super-reliable, field-proven, epoxy-encapsulated DMS-30PC digital

voltmeters. The entire assembly utilizes 100% soldered connections. These are the

most rugged, 4-20mA input, panel meters in the world.

Gain (span) and offset (zero) adjustments are both performed with high-

precision, 20-turn potentiometers. All decimal point and range-change settings are

made on a gold-plated, vibration-resistant, DIP switch; there are no cumbersome

solder gaps or jumpers to contend with. Connections to the current loop and the

power source are both made on a rugged, four-position, screw-type terminal block.

The DMS-30PC-4/20S's user-friendly design accommodates virtually hundreds of

different input-current/output-reading combinations. This eliminates the majority of

requirements for more costly, long-lead-time, factory "specials"– especially in

applications requiring several different-range meters. A bezel assembly, featuring

secure screw fasteners and an EPDM rubber gasket, is available for applications

requiring moisture and/or dust resistance.

+5V

D M S -3 0 P C -1

R3

ZER O

A D JU S T

R7

G A IN

A D JU S T

3 ½ D IG IT A /D

C O N VER TER

D ATA

DP1

DP2

DP3

B A N D -G A P

R EFER EN C E

C IR C U IT

+5V

N .C .

ON

12345678

(S W 1 )

D IP

S W IT C H E S

+5V

V O LTA G E

C O N VER TER

1

TB1

12

SG 9

TB2

1

2

+

–

4 -2 0 m A

L O O P IN P U T

➀ –V is not connected to meter ground

on ‘-I’ suffix models.

Figure 1. DMS-30PC-4/20S Simplified Schematic

+

–

+V

–V

P O W E R S U P P LY

IN P U T

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

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