DATEL DMS-20PC-3-DCM Datasheet

(

)

www.datel.com

®®

DMS-20PC-3-DCM

+2 to +6Vdc, Self-Powered

Actual Size

Features

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Self-powered, only two connections required

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+2.00 to +6.00Vdc input range

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0.01V resolution; ±0.05% accuracy

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Ideal for low-voltage (3.3V) power supply monitoring

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Digital replacement for analog panel meters

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0.37"/9.4mm, bright red, LED display

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Subminiature 1.38" x 0.88" x 1.0" package

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Super reliable, epoxy-encapsulated construction

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Reverse polarity protected

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–25 to +60°C temperature range

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Low power consumption

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Functional Specifications

Input

Voltage Range
Current Consumption

@Vin = 2/3/6Vdc 55/80/50mA (max.)

Reverse Polarity Protection 6V (max.)

Performance

Sampling Rate 2.5 readings/second
Resolution 0.01V
Accuracy @ +25°C ±0.01V (typ.), ±0.02V (max.)
Temperature Drift

(–25 to +60°C) ±0.3 counts/°C (max.)

Mechanical

Dimensions 1.38" x 0.88" x 1.00"
Display Type 3 digit, red LED, 0.37"/9.4mm
Weight 1 ounce (28 grams)
Case Material Polycarbonate

Environmental

Operating Temperature –25 to +60°C
Storage Temperature – 40 to +75°C
Humidity (Non-condensing) 0 to 95%

➀

Operation and accuracy at inputs above or below this range
are not specified.

➀

+2.00 to +6.00Vdc

LED Display, DC Voltage Monitor

DATEL's new DMS-20PC-3-DCM self-powered dc voltage monitor is perfect
for precision monitoring of all low-voltage power supplies. Simply connect a
positive dc voltage across its two rear terminals and the meter is fully opera­tional with no additional components required! A measurement resolution of

0.01Vdc enables precise adjustment of power supply outputs. The large, 0.37"/

9.4mm, bright red, LED display, unlike most LCD's, can
be easily read from 15 feet away under virtually any
lighting conditions. Built-in reverse polarity protection
assures quick, trouble-free installation.

The DMS-20PC-3-DCM utilizes a high-resolution,
3 digit analog-to-digital converter and precision
metal-film resistors to achieve outstanding perfor­mance over its operating temper ature range of –25 to
+60°C. A rugged, epoxy-encapsulated, polycarbon­ate case provides excellent protection against
moisture, shock and vibration.

The DMS-20PC-3-DCM uses the same panel
cutout dimensions as all DMS-20 Series panel voltme­ters and monitors; this feature assures uniform displays in
multiple-meter applications.

Mechanical Specifications

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

Recommended panel cutout dimensions:
Internal corner radii 0.032 (0.81) Max.

3 PL Dec ±0.010 (±0.254)

1.336 (33.93)W × 0.838 (21.29)H

#6-32

UNC THD

0.75

(19.1)

+

0.44

(11.2)

0.80

(20.3)

0.32
(8.1)

–

0.04

(1.016)

1.00

(25.4)

#2-56 INSERT

0.156 (3.96) DEEP

0.88

(22.4)

0.19
(4.8)

0.04

(1.016)

0.04

(1.016)

0.37
(9.4)

–

Typical panel

mount installation

Suggested wiring

(User supplied)

1.30

(33.0)

+

DMS-20PC-3-DCM

®®

1.38

(35.1)

Ordering Information

DMS-20PC-3-DCM +2.00 to +6.00V dc voltage monitor
DMS-20-CP Panel cutout punch

1.07

(27.2)

DMS-BZL3 Panel mount bezel assembly
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, 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.

0.10
(2.5)

DMS-BZL3

Optional Bezel

1.63 (41.4)

46.5

1.83

1.28

(32.5)

0.10
(2.5)

DS-0350A 1/98