Datasheet > DMR20-1-ACV

DMR20-1-ACV

更新时间： 2024-02-20 00:02:32

品牌	Logo	应用领域
村田 - MURATA		监控
页数	文件大小	规格书
4页	590K
描述
85 to 264Vac, LED Display Line Monitor

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DMR20-1-ACV 数据手册

NANO

DMR20-1-ACV

www.murata-ps.com

Self-Powered,

85 to 264Vac, LED Display Line Monitor

FEATURES



Universal 85 to 264Vac measurement range



Self-powered directly from the AC supply



Installs in “oiltight”1.20 inch (30.5mm) round cutouts



Four-digit LED display with overvoltage indication



Reads true-rms value to 0.1V resolution



Knockout punches and tooling available



Digital replacement for analog panel meters



Screw-style terminal block simpliﬁes installation



Self-resetting internal fuse for long-term reliability



Provides moisture resistance to IP67/NEMA 6

Murata Power Solutions’ new DMR20-1-ACV self-powered, AC line-voltage monitors are

designed to measure and display the true-rms voltage of AC power systems. Simply con-

nect any 85 to 264Vac 50/60Hz power source and these meters are fully operational—no

additional components or power sources are required. The unit can also measure distorted

AC power sources including triangle, square, and the quasi-sine output of many DC to AC

power inverters.



Supplied with EPDM rubber gasket and plastic hex nut



UL/CSA approvals pending

Performance/Functional Speciﬁcations

The DMR20-1-ACV is housed in a rugged, round polycarbonate case that provides excellent

protection against moisture, dust, shock and vibration. Panel installation is straightforward:

Using readily available tooling, simply drill and punch a 1.2 inch (30.5mm) diameter hole and

anti-rotation notch, insert the meter and gasket, and securely fasten the meter using the sup-

plied hex nut. The supplied hardware is designed to provide protection to IP67/NEMA 6.

Typical at Ta = +25°C, ﬁn = 60Hz

AC Input (TB1)

Voltage Range ➀

Current Consumption

85 to 264Vac (47-63 Hz)

@Vin = 250Vac: 30mA (max.)

@Vin = 120Vac: 15mA (max.)

Their large, 0.30"/7.6mm, bright LED displays can be easily read from 10 feet away (3

meters). These meters accurately display ac voltages with 0.1V resolution. A built-in reset-

table fuse assures long term reliability. All DMR20-1-ACVs employ a 13-bit A/D converter

and precision metal-ﬁlm resistors to achieve outstanding performance over an operating

temperature range of –25 to +60°C.

Performance

Sampling Rate

2.5 readings/second

0.1Vdc

.1V (typ.), .2V (max.)

(–25 to +60°C) 0.05V/°C (max.)

Resolution

Accuracy @ +25°C

Temperature Drift

Mechanical

Dimensions

1.50"diameter x 1.15 depth"

(38.1 x 29.2mm)

Four digit, LED, 0.30" high (7.6mm)

0.8 ounce (23 grams)

Polycarbonate

Display Type

Weight

Case Material

Terminal Block Torque

Wire Size And Type

Ordering Information

DMR20-1-ACV-R-C 85 to 264Vac voltage monitor (Red LED)

3.6 in-lbs (0.4 N-m)

18-22AWG (0.83-0.33mm²) copper,

solid or stranded

Knockout Punches

DMR20-1-KP

DMR20-2-KP

DMR20-3-KP

1.2" (30.5mm) Round knockout punch

(no keying notch)

1.2" (30.5mm) Round knockout punch

(with four keying notches)

1/8" and 3/16" (3.2 and 4.7mm)

key-notch nibbler tool

Wire Insulation Strip Length

0.25" (6.4mm)

Environmental

Operating Temperature

Storage Temperature

Humidity (non-condensing)

–25 to +60°C

–40 to +75°C

0 to 85%

Note: An M30 x 1.5 nylon hex nut and EPDM sealing gasket are supplied with each

meter. The “-C” sufﬁx denotes RoHS compliance.

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

For full details go to

www.murata-ps.com/rohs

(pending)

www.murata-ps.com/support

MPM_DMR20-1-ACV.A02 Page 1 of 4

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