DATEL DMS-30195, DMS-30194, DMS-30193 Datasheet

Actual Size

®®

DMS-3019X Series

Alternate Source for DP-650

Series, 3½ Digit, LCD Display

Digital Panel Voltmeters

Features

••

• Replaces DP-650, DP-652 and

••

DP-654 meters

••

• Connects directly to existing wiring

••

••

• Available in three input ranges:

••

±200mV, ±2V and ±20V

••

• Low power consumption

••

••

• Wider operating temperature

••

range (0 to +60°C)

••

• Rugged, epoxy-encapsulated

••

plastic packages

••

• Large (0.4"/10.2mm) LCD displays

••

••

• Made in the USA!

••

1

V+

GND

DP COM

DP 3

2

3

4

DC/DC

CONVERTER

0 Vdc

DATEL's new DMS-3019X Series, 3½ Digit, LCD Display, Digital Panel Voltmeters
provide DP-650 users with a superior-quality alternate source. The DMS-3019X
Series input/output connector is pin-compatible with nearly all DP-650 applications.
Only minor sheet-metal modifications are needed to attain all the advantages offered
by the DMS-3019X Series digital voltmeters.

Three differential, high-impedance, input voltage r anges are available: ±200mV
(DMS-30193), ±2V (DMS-30194) and ±20V (DMS-30195). Provisions are also
included for the addition of custom input-scaling resistors—a feature found only on
DMS-3019X meters. Autozero calibration, autopolarity changeover and a factory­calibrated ultra-stable reference circuit are standard. A reliable, epoxy-encapsulated
DMS-30LCD digital voltmeter, with large (0.4"/10.2mm) LCD digits, is used in all three
models. All internal and external connections are 100% soldered—no elastomeric
connectors are used.

The DMS-3019X Series offers many noteworthy improvements over its competi­tors: wider operating temperature range, lower power consumption and higher input
impedance, to name a few. And, most importantly, all DATEL digital panel meters are
designed and manufactured in the USA!

+5V

–5V

CONVERTER

DATA

A/D

V+

GAIN
ADJUST

➁

R2

R1

➀

1.23V
REF.

≈

+2.0V

R4

R3

909k

0.01µF

V–

8

(–) INPUT LO

➁

7

(+) INPUT HI

5

DP 2

+5V

6

DP 1

➀

R4 is not used on the ±200mV or ±2V models.

R4 = 100k on the ±20V model.

R1 and R2 are user supplied.

➁

9

DISPLAY TEST

Figure 1. DMS-3019X Simplified Schematic

DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: [phone] Fax: [phone] • E-mail: [e-mail] • Internet: www.datel.com

DMS-3019X

L

3½ DIGIT, LCD DISPLAY DIGITAL VOLTMETERS

Mechanical Specifications

MECHANICAL DIMENSIONS: Inches (mm)
TOLERANCES: 2 PL DEC ±0.02 (±0.51) 3 PL DEC ±0.010 (±0.254)

LEAD DIMENSIONS: 0.025 (0.635) x 0.025 (0.635) NOMINAL

0.90

(22.9)

TYP.

10

MADE IN USA

FRONT VIEW

DP1

#2-56 INSERT

0.156 (3.96) DEEP

2.09

(53.1)

2.17

(55.1)

DP2

0.040
(1.02)

0.40

(10.2)

TYP.

0.475

(12.07) TYP.

0.84

(21.3)

0.92

(23.4)

OPTIONAL BEZEL (DMS-BZL1 and DMS-BZL2)

FRONT VIEW

0.10

(2.5) TYP.

1

0.025 SQ.
(0.635)

DMS-30194

®®

0.040
(1.02)

0.40

(10.2)

DP3

0.187
(4.75)

Electrical Specifications

T ypical at TA = +25°C and supply voltage = +5V. See DMS-30LCD
data sheet for more information.

Power Supply (V+ to GND) +5Vdc, ±5% @ 1.2mA max.
Full Scale Input See Ordering Information
Input Impedance 1 Megohm
Sampling Rate 3 Samples per second
Accuracy (V
Display Type 3½ Digit LCD, 0.40"/10.2mm high
Operating Temperature 0 to +60°C
Storage Temperature –20 to +75°C
Humidity (Non-condensing) 0-95%

IN = +0.190V) ±2 Counts max. (±0.1%)

BACK VIEW

12

+5V Power
Supply

R2
R1

7

+
–

1

2345678910

V+

GND

DP COM

®®

123456

DP1

DP2

DP3

TEST

(–) INPUT

(+) INPUT

Typical Single-ended Connections

1

6

N.C.

+

V

IN

–

+5V

1.270

(32.26)

2.55 (64.77)

RECOMMENDED DRILL AND PANEL CUTOUT DIMENSIONS

INTERNAL CORNER RADII:

0.032 (0.81) MAX.

1.07

(27.18)

0.093 (2.362) DIAMETER (4 REQUIRED)
ONLY WHEN USING OPTIONAL BEZEL ASSEMBLY

PANEL CUTOUT

2.118 (53.80)

2.35 (59.69)

0.116
(2.95)

0.878

(22.30)

0.096
(2.44)

Ordering Information

DMS-30193 ±200mV input
DMS-30194 ±2V input
DMS-30195 ±20V input

®®

DMS-BZL1 Bezel assembly
DMS-BZL2 Bezel with gasket
DMS-30-CP Panel cutout punch

ISO 9001

ISO 9001

REGISTERED

BEZEL INSTALLATION

10

MADE IN USA

BEZEL

RETAINING CLIP IN S T A L LA T ION

10

MADE IN USA

1

®®

1

®®

A panel-mount retaining clip is supplied with all models

PANE

PANEL

DS-0330A 1/98

DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151
Tel: [phone] [phone] Fax: [phone]
Internet: www.datel.com Email: [e-mail]
Data sheet fax back: [phone]

DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do
not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.

DATEL (UK) LTD. Tadley, England Tel: [phone]
DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: [phone]
DATEL GmbH München, Germany Tel: [phone]
DATEL KK Tokyo, Japan Tel: [phone], Osaka Tel: [phone]