Murata DMR20-0/5 Series Manual

FEATURES

Provides scaling of 0-5V and 0-10V process signals

High-quality, 20-turn, span (gain) and zero (offset)

Operates from industrial 5V / 12V / 24V / 36V dc power supplies

Fits round 1.21 inch [30.7 mm] cutouts; less than 1.00 inch [25.4
mm] behind-the-panel depth

High input impedance, 100k Ω minimum

Easy-to-read, 0.30 inch [7.6 mm] high red or green LED display

Supplied with EPDM rubber gasket and hex nut

High-quality, 20-turn, span (gain) and zero (offset) adjustments

Gold-plated DIP-switches for range and decimal points: Reliable
screw-terminal input connections

Rugged, polycarbonate housing, one-piece package

Protected against dust and water submersion to IP67/NEMA 6
SIMPLIFIED SCHEMATIC DIAGRAM
For full details go to:
http://www.murata-ps.com/en/support/rohs-
compliance.html
www.murata-ps.com/support
Murata Power Solutions' new DMR20-0/5 Series are the world's first 0-5V input
process monitors designed to fit industry standard, 1.21 inch [30.7 mm] round panel
cutouts. Their large, easy-to-read, 0.30 inch [7.6 mm] digits are available in a choice of
red or green LED displays. For the ultimate versatility in industrial applications, these
new process monitors can be operated from any regulated source of 5V, 12V, 24V, or
36V dc power.
Gain (span) and offset (zero) adjustments are performed with on-board, precision,
20-turn potentiometers. All decimal-point and range-change selections are made on a
6-position, vibration-resistant, gold-plated DIP switch. Unlike competitive meters, there
are no jumpers or solder gaps to open or close. To further enhance reliability, the
entire assembly utilizes 100% soldered connections. Both power-supply and input-
signal connections are made via a reliable, 3-position, screw-type terminal block.
The DMR20-0/5's DIP switch and potentiometers accommodate hundreds of input-
voltage / output-reading combinations. This practically eliminates the need for more costly,
long-lead-time, factory "customs" in applications which use several different-range meters.
An EPDM rubber gasket and hex nut simplify installation and provide IP67 / NEMA 6
protection to environmental dirt and moisture, including water submersion to 3 feet (1
meter).
.
DMR20-0/5 Series
0-5V Input, 3½ Digit LED Display
Round Process Monitors
Figure 1
Simplified Schematic
Diagram
MPM_DMR20-0/5.A01 Page 1 of 5