DATEL DMS-20LCD-1-DCM, DMS-20LCD-0-DCM Datasheet

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

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.

DMS-20LCD-0/1-DCM

Self-Powered, LCD Display

Digital, DC Voltage Monitors

Ordering Information

Functional Specifications

Features

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Self-powered, only two connections required

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+6.50-18.00Vdc (0.01V resolution) or
+8.0-40.0Vdc (0.1V resolution) input ranges

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Ideal for battery-powered systems

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Reverse polarity protected

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Built-in "VDC" annunciator

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Large (0.37"/9.4mm) LCD displays

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Subminiature 1.38" x 0.88" x 0.66" packages

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Rugged, ABS package

Actual Size

Input

Voltage Range:

➀

DMS-20LCD-0-DC M +6.50 to +18.00Vdc
DMS-20LCD-1-D CM +8.0 to +40.0Vdc

Current Consumption:

DMS-20LCD-0-DCM 3mA (max. at VIN=+12V)
DMS-20LCD-1-D CM 2.5mA (max. at VIN=+24V)

Performance

Sampling Rate 2.5 readings/second
Accuracy @ +25°C:

DMS-20LCD-0-DC M ±0.01V (typ.), ±0.03V (max.)
DMS-20LCD-1-DC M ±0.1V (typ.), ±0.2V (max.)

Temperature Drift (0 to +60°C):

DMS-20LCD-0-D CM ±0.4 counts/°C (max.)
DMS-20LCD-1-D CM ±0.04 counts/°C (max.)

Mechanical

Display Type:

DMS-20LCD-0- DCM 3½ digit LCD, 0.37"/9.4mm high

DMS-20LCD-1- DCM 3 digit LCD, 0.37"/9.4mm high
Weight 0.5 ounces (14 grams)
Case Material ABS

Environmental

Operating Temperature 0 to +60°C
Storage Temperature –20 to +75°C
Humidity (Non-condensing) 0 to 95%

DMS-20LCD-0-DCM +6.50-18.00V dc voltage monitor
DMS-20LCD-1-DCM +8.0-40.0V dc voltage monitor
DMS-20-CP Panel cutout punch
DMS-BZL3 Panel mount bezel
DMS-BZL4 Panel mount bezel with sealing gasket

Brass screws (6-32 thread) and a panel-mount retaining clip are
supplied with each meter

DATEL's new DMS-20LCD-DCM, self-contained, self-powered, dc voltage
monitors set new standards for quality, performance, size and cost. Simply
apply power to the two rear terminals and the unit is operational. No
additional components are required! The large , 0.37"/9.4mm, LCD
display, with built-in "V

DC" annunciator, can be easily

read from 10 feet. Two models are available: one for
12Vdc nominal operation (+6.50-18.00V range, 0.01V
resolution), the other for 24Vdc nominal operation
(+8.0-40.0V range, 0.1V resolution). Reverse
polarity protection is standard on both models.

The DMS-20LCD-DCM utilizes a precision
analog-to-digital converter and ultra-stable
passive components to achieve excellent perfor­mance over the operating temper ature range of 0 to
+60°C. A rugged, ABS plastic package provides
excellent protection against shock and vibration.
DMS-20LCD-DCM’s are without a doubt the most
cost-effective, LCD-display, digital voltmeters
available anywhere, at any price.

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Operation and accuracy at voltages above or below these ranges
are not specified.

Mechanical Specifications

Dimensions in inches (millimeters)
Tolerances: 2 PL Dec ±0.02 (±0.51)

3 PL Dec ±0.010 (±0.254)

Recommended panel cutout dimensions:

1.336 (33.93)W × 0.838 (21.29)H

Internal corner radii 0.032 (0.81) Max.

DMS-BZL3

Optional Bezel

DS-0348A 3/98

DATEL

0.75

(19.1)

#6-32

UNC THD

0.38
(9.7)

0.80

(20.3)

0.27
(6.9)

0.04

(1.016)

0.88

(22.4)

0.43

(10.9)

0.04

(1.016)

0.04

(1.016)

1.30

(33.0)

1.38

(35.1)

0.19
(4.8)

1.28

(32.5)

0.10
(2.5)

1.07

(27.2)

0.10
(2.5)

#2-56 INSERT

0.156 (3.96) DEEP

1.63 (41.4)

1.83

(

46.5

)

CD

DC

0.025
(0.64)

0.66

(16.8)

0.25
DIA.

0.37
(9.4)

+

–

Typical panel

mount installation

Suggested wiring

(User supplied)

®®

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