aci A/DLP-001-W-U-N-A-3, A/DLP-040-W-U-N-A-0, A/DLP-001-W-U-N-A-0, A/DLP-040-W-U-N-A-3, A/DLP-001-W-U-D-A-0 Installation & Operation Instructions

DLP SERIES

Installation & Operation Instructions

Phone: [phone]

Website: workaci.com

PRECAUTIONS

• Do not switch pressure range and output
mode when power is on. Make sure to power off
the unit first, then set the DIP Switches to the
correct positions and then power on the

FIGURE 1: DLP DIMENSIONS

4.35"

(110.43 mm)

2.48"

(62.99 mm)

2.23"

(56.52 mm)

transmitter.

GENERAL INFORMATION

The DLP Series is based on a piezoresistive, silicon
sensing element which senses Dierential Pressure
and provides an analog output. Field selectable
analog outputs include 0-5 and 0-10 VDC, or 4-20
mA which correlate to a uni or bi-directional
pressure range from 0-0.1” up to 0-40” of water
column, depending on your model selection. Each
unit has up to 8 eld selectable, uni or bi-directional
ranges (see Figure 6 p. 3).

CORDGRIP /
1/2 “ CONDUIT FITTING

MEDIA

The DLP can be used to monitor the dierential
pressure in any application that uses dry air or inert
gas.

Mounting

Find a suitable location for the enclosure. The DLP
has 2 two mounting holes located on the top and
bottom anges. Drill pilot holes for the (2) #8 x 3/4”
self-drilling screws(supplied). Use the enclosure ange as a guide, or use the dimensions listed in Figure 1.
Mount the unit vertically with the brass ttings pointing towards the ground. This ensures that any
condensation that may form in the tubing does not have an eect on the pressure sensor. If mounting the
unit horizontally, a slight zero shift may occur and care must be taken to prevent moisture from building
up in the sensor.

5.56"

(141.29 mm)

6.02"

(152.82 mm)

HIGH PRESSURE PORT

-H

-L

LOW PRESSURE PORT

FIGURE 2: DIN RAIL MOUNTING

Automation Components, Inc.

2305 Pleasant View Road | Middleton, WI 53562

Phone: [phone] | Website: workaci.com

Page 1

DIN RAIL

DIN RAIL

DIN RAIL
CLIP

Version: 15.0

Version: 15.0

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DIN RAIL MOUNTING (Optional)

Attach the DIN Rail Mounting accessory to the
back of the enclosure using the two screws
provided. To mount the sensor on the DIN Rail,
place the bottom of the DIN Rail Clip into the
35mm DIN Rail and push the unit upward to
engage the spring clip. Now press the top of
the unit back until it locks into place - see

FIGURE 2 (p.1).

PITOT TUBE INSTALLATION

(Optional)

Slip the rubber washer over the threaded end
of the pitot tube, keeping the washer as close
to the threaded end as possible. Fasten the
pitot into the threaded insert on the back of
the enclosure. Press the rubber washer against
the enclosure - see FIGURE 3.

Tubing Setup When Pitot Tube is Installed

Units will be shipped with silicone tubing
attached to the high and low pressure barb
ttings. The silicone tubing will need to be
removed from the High Pressure (H) barb
tting and secured onto the pitot tube barb
tting. This will leave the high pressure barb
tting open to atmosphere, and the Low
pressure barb tting remaining at default
setup.

Pressure Connections

The recommended connection tubing is ¼”
O.D push-on tubing (1/8” to 3/16” I.D.). For best
results, all tubing lengths should be limited to
a maximum length of 75 feet (23 meters).
Longer runs will aect the response time.

FIGURE 3: PITOT TUBE INSTALLATION

Move Tubing
from High port to
Pitot tube

HIGH PRESSURE PORT

LOW PRESSURE PORT

FIGURE 5: MEASURING DIFFERENTIAL
PRESSURE ACROSS FILTER

FIGURE 4: DUCT STATIC INSTALLATION

DRILL Ø 7/16”
(11.1125 mm)
HOLE

Automation Components, Inc.

2305 Pleasant View Road | Middleton, WI 53562

Phone: [phone] | Website: workaci.com

Page 2

LOW

A/SPT
A/VPT

POLY TUBING

HIGH

FILTER

DIRECTION
OF AIR FLOW

Version: 15.0

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WIRING

PRECAUTIONS

FIGURE 6: SW1 and SW3 OUTPUT

SWITCHES

• Remove power before wiring. Never
connect or disconnect wiring with
power applied.

• When using a shielded cable, ground the
shield only at the controller end.
Grounding both ends can cause a ground
loop.

• It is recommended you use an isolated
UL-listed class 2 transformer when
powering the unit with 24 VAC. Failure to
wire the devices with the correct polarity
when sharing transformers may result in

Vout

mA

SW1

5V

SW3

BI

Pa

A

1 2 3 4 5

1

ON

OFF

UNI

10V

inWC

B

2

O

damage to any device powered by the
shared transformer.

• If the 24 VDC or 24VAC power is shared with devices that have coils such as relays, solenoids, or
other inductors, each coil must have an MOV, DC/AC Transorb, Transient Voltage Suppressor (ACI
Part: 142583), or diode placed across the coil or inductor. The cathode, or banded side of the DC
Transorb or diode, connects to the positive side of the power supply. Without these snubbers,
coils produce very large voltage spikes when de-energizing that can cause malfunction or
destruction of electronic circuits.

TABLE 1: WIRING CONNECTIONS

OUTPUT SIGNAL

0-5 VDC
0-10 VDC
4-20 mA
4-20 mA

N/A = Not Applicable
N/C = No Connection

OUTPUT MODE
(SW1)

Vout
Vout
mA
mA

OUTPUT SIGNAL
(SW3 Position 4)

5 V
10 V
N/A
N/A

SUPPLY VOLTAGE

VAC/VDC
VAC/VDC
VDC
VAC

WIRE CONNECTIONS

BLACK

RED

COM

V+

COM

V+

N/C

V+

COM

V+

WHITE

VOUT
VOUT
N/C
N/C

YELLOW

N/C
N/C
IOUT
IOUT

FIGURE 7: WIRING CONNECTIONS

2-Wire, 4-20 mA

DLP

YELLOW

WHITE

VOUT

BLACK

COM

Digital Controller

AI1

V+

RED

V+ IOUT

Automation Components, Inc.

2305 Pleasant View Road | Middleton, WI 53562

Phone: [phone] | Website: workaci.com

3-Wire, 0-5 V / 0-10 V

DLP

YELLOW

WHITE

RED

VOUT

COM

V+ IOUT

Page 3

BLACK

Digital Controller

24 VAC/DC POWER

AI1

COM

SUPPLY

-

+

Version: 15.0

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