Dwyer Instruments DPMW Series Installation And Operating Instructions Manual

Bulletin E-90-DPMW

Series DPMW LCD Digital Panel Meters

Specifications - Installation and Operating Instructions

.120

.400

[10.2]

[3.05]

.270

[6.85]

Ø.140
[Ø3.6]

2 PLCS

2.380
[60.5]

1888

2.310
[58.4]

.120

[3.05]

1.562

[39.67]

.988

[25.1]

The Series DPMW LCD Digital Panel Meter is designed with a
3-1/2 digit, high contrast LCD display. The colored segments are
available in red, amber, or green - ideal for viewing at a distance.
The Series DPMW features user selectable engineering units,
selectable decimal point position and adjustable zero and span.
The meter accepts a 4 to 20 mA input signal for pressure, level,
flow, and temperature transmitter. A 24 VDC power supply is
required to illuminate the colored segments. The series DPMW can
be quickly installed in a window cutout.

INSTALLATION

The Series DPMW is designed for window mounting in a 2.31˝
(58.4 mm) W x .91˝ (22.9 mm) H panel cutout.

WIRING

The unit is powered by a 4-20 mA loop and the screw terminals
for wiring are located on the back of the adder board marked with
+ SIG -. The backlighting requires a 24 VDC power supply and
should be connected to terminals identified with + B/L -.

PANEL CUTOUT FOR

WINDOW MOUNTING

.910

[22.9]

SPECIFICATIONS

Inputs: 4-20 mA DC.
Input Impedance: 300Ω nominal.
Accuracy: ±(0.1% FS + 2 count).
Backlight Power Supply: 24 VDC @ 35 mA typical.
Span and Zero: Adjustable. (± 1999).
Display: 3-1/2 digits, 7 segments, 0.45˝ (11.4 mm) H.
Decimal Points: 3-position, user selectable.
Annunciator: °F, °C, %, PSI.
Polarity: Automatic, “-” displayed.
Operating Temperature: 32 to 122°F (0 to 50°C).
Storage Temperature: -4 to 158°F (-20 to 70°C)
Mounting: Window mount.
Connection: Screw terminals.
Weight: 2 oz (56.7 g).
Conversion Rate: 3 per second.
Warm-Up: 10 minutes typical.

REAR VIEW

Note: If backlight supply is not loop supply, ground should be

referenced together.

DWYER INSTRUMENTS, INC.

Phone: [phone] www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [e-mail]

OPERATION

A

B

J3 J2 J1

Selecting Engineering Units

Four sets of jumper pins are located in the back of the meter,
between the meter and the adder board. Move the jumper to fit
over the appropriate pins which correspond to the desired
engineering units. See Figure 1.

FIGURE 1

Selecting Decimal Point Position

Four decimal point positions are available on the digital panel
meter. Move the jumper to correspond to the desired decimal
point location. See Figure 2.

MAINTENANCE

Upon final installation of the Series DPMW LCD Digital Process
Meters, no routine maintenance is required. A periodic check of
the system calibration is recommended. The Series DPMW is not
field serviceable and should be returned if repair is needed (field
repair should not be attempted and may void warranty). Be sure to
include a brief description of the problem plus any relevant
application notes. Contact customer service to receive a return
good authorization number before shipping.

FIGURE 2

Setting J1, J2, J3 (See Figure 3 & 4):

If:

The minimum display is ≤ 0 or
Minimum display is > 0 and the (maximum display/minimum
display) >

5;

The J1, J2 & J3 should be all set to the top jumper (see Figure 3).

J3 J2 J1

A

B

FIGURE 3

If

:

The minimum display is > 0 and the (maximum display/minimum
display) < 5;

The J1, J2 & J3 should be all set to the bottom jumper (see Figure

4).

FIGURE 4

©Copyright 2008 Dwyer Instruments, Inc. Printed in U.S.A. 3/08 FR# R5-443464-00 Rev. 1

DWYER INSTRUMENTS, INC.

Phone: [phone] www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [e-mail]