Dwyer DPMX User Manual

Series DPMX Extra Large Digital Panel Meter

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Specifications - Installation and Operating Instructions

Bulletin G-62

The Series DPMX Extra Large LED Digital Panel Meter can easily be

viewed from across a room or in dark areas. The 2.3” LED segments are
available in red, green, or blue. These panel meters come equipped with
a universal power supply and user selectable process inputs to fit most
applications. The Series DPMX includes a mounting bracket that can be
adjusted up to 180°.

INSTALLATION

The Series DPMX is designed to be bezel mounted or gimbal mounted.
Mounting brackets are included in the box.

BEZEL MOUNT
Remove the two U-brackets from the back of the panel meter. Slide the
unit through the panel from the front. Next, attach the U-brackets to the
rear and tighten the four retaining bolts.
See Figure 1 for dimensions of the cutout.

Figure 1

GIMBAL MOUNT
If the panel meter is to be gimbal mounted, remove and discard the two
U-brackets from the back of the panel meter. Fasten the gimbal brackets
to the mounting surface using appropriate hardware. Lastly, fasten the
panel meter loosely to the gimbals using the thumbscrews. Note that
detents are provided on both sides of the case. Adjust the meter to the
desired viewing angle and securely tighten the thumb screws.

SPECIFICATIONS
Inputs Ranges:

Set Voltage: ±200 mVDC, ±2 VDC, ±20 VDC;
Adjustable Voltage: 200 mVDC, 5 VDC, 10 VDC;
Adjustable Current: 0(4) to 20 mA DC.

Inputs Impedance:

Set Voltage: >1 MΩ (>10 MΩ on 200 mV range);
Adjustable Voltage: 392 kΩ;
Adjustable Current: 300Ω nominal.

Accuracy: ±(1% FS + 1 count).
Power Supply: 90 to 250 VAC @12 VA or 10.5 to 30 VAC/DC @ 6VA

(depending on model).

Display: 3-1/2 digits, 2.3˝ height, 7 segment LED.
Sampling Rate: 3 readings per second.
Operating Temperature: -10 to 50ºC.
Storage Range: -40 to 75ºC.
Warm Up: 10 minutes.
Mounting: 180º gimbal mounting with 30º stops or bezel mount.

WIRING

The unit accepts signal inputs of 200 mVDC, 2 VDC, 5 VDC, 20 VDC,
10 VDC, and a 4 to 20 mA DC loop. The screw terminals for wiring are
located on the back of the adder board beneath the cover. The cable
clamps must be unfastened to access the screw terminals. In order to
reduce electrical noise, install the line voltage and the process signal
through separate cable clamps as shown in Figure 2.

Figure 2

On the terminal cover, remove two thin break out sections that best
match the diameter of the wiring cables being used.

DWYER INSTRUMENTS, INC.

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

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: [phone] e-mail: [e-mail]

OPERATION

LPI

VPI

D

CV

FUNCTION

DP1

DP2

DP3

OFF

DECIMAL

200 mV 5V 10V

200 mV 2V 20V

VPI

RANGES

DCV

FUNCTION
The Series DPMX panel meter can be used with voltage or current signal
inputs. It is important that the signal wires be connected to the proper
terminals as labeled in Figure 2. Along with wiring to the proper
terminals, the proper input should be selected using the function
selection switch shown in Figure 3. For current inputs, the function
switch should be set to LPI. For adjustable voltage inputs, the function
switch should be set to VPI. For fixed voltage inputs, the function switch
should be set to DCV.

Figure 3

SPAN & ZERO ADJUSTMENT
The unit is equipped with a span adjustment for DCV inputs, and both
span and zero adjustments for LPI and VPI inputs. To use either
function, a flathead screwdriver is required to set the appropriate values.
First, choose the span and/or zero adjustment that corresponds with the
input that is being supplied. For example, if a VPI inputs is being
supplied to the meter, you will need to adjust the VPI span. Next, apply
the lowest input into the meter and adjust the zero position for the
required reading. After adjusting the zero position, apply the highest
input into the meter and adjust the span position for the meter. Recheck
the zero input and readjust as needed. See Figure 6.

ZERO SUPPRESSION FOR CURRENT INPUT
The Series DPMX can be used with either 0 to 20 mA or 4 to 20 mA
current inputs. In order to maximize the rangeability of the meter, the LPI
offset jumper should be set to “+” for 4 to 20 mA signal inputs or to “-” for
0 to 20 mA inputs.
See Figure 4.

Figure 4

SELECTING DECIMAL POINT POSITION
Four decimal point positions are available on the digital panel meter,
DP1-OFF. Move the switch to the corresponding decimal point location.
See Figure 5.

Figure 5

SELECTING VOLTAGE INPUT RANGE
Three input positions are available for either VPI or DCV (see Figure 3
above). Move the switch to desired input range (see Figure 7).

Figure 6

MAINTENANCE

Upon final installation of the Series DPMX LED Digital Panel Meter, no
routine maintenance is required. A periodic check of the system
calibration is recommended. The Series DPMX 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 goods authorization number before shipping.

CAUTION! Do not mount the panel meter outdoors or in damp
environments, or other extreme environments. It is not a sealed unit.

Figure 7

©Copyright 2014 Dwyer Instruments, Inc. Printed in U.S.A. 5/14 FR# R2-443568-00 Rev. 3

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: [phone] e-mail: [e-mail]

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