Dwyer Instruments DPMW Series User manual

Series DPMW LCD Digital Panel Meters
Specifications - Installation and Operating Instructions
Bulletin E-90-DPMW
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]
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.
.270
[6.85]
Ø.140
[Ø3.6]
2 PLCS
2.380
[60.5]
2.310
[58.4]
.910
[22.9]
PANEL CUTOUT FOR
WINDOW MOUNTING
1.562
[39.67]
.400
[10.2]
.120
[3.05] .120
[3.05]
.988
[25.1]
1888
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 -.
Note: If backlight supply is not loop supply, ground should be
referenced together.
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.
REAR VIEW
E-90-DPMW 3/12/08 10:08 AM Page 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]
©Copyright 2008 Dwyer Instruments, Inc. Printed in U.S.A. 3/08 FR# R5-443464-00 Rev. 1
OPERATION
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.
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.
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).
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 2
FIGURE 4
A
B
J3 J2 J1
FIGURE 3
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 1
A
B
J3 J2 J1
E-90-DPMW 3/12/08 10:08 AM Page 2