aci ACCESS series User manual

Installation and Operation Instructions
DLP Series
AUTOMATION COMPONENTS, INC Version : 11.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 1 of 7
www.workaci.com [phone]
Figure 1: DLP Dimensions and Hardware
PRECAUTIONS
•REMOVE POWER BEFORE WIRING.NEVER CONNECT OR DISCONNECT WIRING WITH THE POWER APPLIED.DO NOT ALLOW
LIVE WIRES TO TOUCH THE CIRCUIT BOARD.
•AN ISOLATION TRANSFORMER IS RECOMMENDED WHEN POWERING THE DEVICE WITH 24VAC.
•DO NOT RUN THE WIRING IN ANY CONDUIT WITH LINE VOLTAGE.
•FAILURE TO WIRE DEVICES WITH THE CORRECT POLARITY WHEN USING A SHARED TRANSFORMER MAY RESULT IN
DAMAGE TO ANY DEVICE POWERED BY THE SHARED TRANSFORMER.
MEDIA
The DLP can be used to monitor the differential pressure in any application that uses dry air or inert gas.
DIN RAIL MOUNTING (Optional Accessory Ordered)
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).
Figure 2: DIN Rail Mounting

AUTOMATION COMPONENTS, INC Version : 11.0
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Middleton, Wisconsin 53562 Page 2 of 7
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PITOT TUBE INSTALLATION (Optional Accessory Ordered)
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.
Figure 3: Pitot Tube Installation
TUBING SETUP WHEN PITOT TUBE IS INSTALLED
Units will be shipped with silicone tubing attached to the high and low pressure barb fittings. The silicone tubing will need to be
removed from the High Pressure (H) barb fitting and secured onto the pitot tube barb fitting. This will leave the high pressure barb
fitting open to atmosphere, and the Low pressure barb fitting remaining at default setup.
Figure 4: Pitot Tube Installation
MOUNTING
Two size #8 x 3/4” self drilling screws are supplied. Mount the unit vertically with the brass fittings pointing towards the ground.
Attach the unit to the mounting surface using the two mounting holes located on the top and bottom flanges. This ensures that any
condensation that may form in the tubing does not have an effect 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. For best results, all tubing lengths
should be limited to a maximum length of 75 feet (23 meters).
PRESSURE CONNECTIONS
The recommended connection tubing is ¼” O.D push-on tubing (1/8”to 3/16” I.D.).

AUTOMATION COMPONENTS, INC Version : 11.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 3 of 7
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Duct Mount Panel Mount
Figure 5: DLP Mounting
WIRING
16 to 26 AWG twisted pair wires or shielded cable is recommended for all sensors. The hinged cover must be opened to connect
wires to the unit’s finger push-button terminal blocks. Each DLP unit can be configured to three output signals: 4-20mA, 0-5V or 0-
10V. Use the Wiring Connections (Table 1) and diagrams (Figure 7) to determine the proper wiring for your application. See Table
1for Output Mode and Output Signal switch positions.
Output Signal
Output Mode
Output Signal
Supply Voltage
Wire Connections
(SW1)
(SW3 Position 4)
Red
Black
White
Yellow
0-5 VDC
Vout
5V
VAC/VDC
V+
COM
VOUT
n/c
0-10 VDC
Vout
10V
VAC/VDC
V+
COM
VOUT
n/c
4-20 mA
mA
n/a
VDC
V+
n/c
n/c
IOUT
n/a=Not Applicable
Table 1: Wiring Connections
n/c=No Connection
Figure 6: SW1 and SW3 Output Switches

AUTOMATION COMPONENTS, INC Version : 11.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 4 of 7
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Figure 7: Wiring Connections
•When using ½” conduit, the strain relief fitting must be removed from the enclosure.
•Make sure that any conduit or metal fittings do not come in contact with the circuit board.
ZERO FUNCTION
The DLP unit should be “ZEROED” before pressure is applied to the unit.
The zero button is used to cancel out any offsets caused by installation and sensor drift.
The Zero adjustment must be performed with NO pressure applied to either side of the sensor.
•Remove the tubing connected to the H(High) and/or L(Low) pressure fittings.
•Push “ZERO” button for more than three seconds before installation or whenever necessary.
Figure 8: Auto Zero Button –SW2
For units with LCD display: “AUTOZERO” icon will be on when the unit enters zero mode. If zeroing process is successful, the
“AUTOZERO” icon will flash twice.

AUTOMATION COMPONENTS, INC Version : 11.0
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Middleton, Wisconsin 53562 Page 5 of 7
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PRESSURE RANGE SELECTION
If a custom calibrated pressure range is ordered, DO NOT change the Pressure Range Selection DIP switch settings.
These are the 12 standard model #’s:
Model #
Item #
Description
Model #
Item #
Description
A/DLP-001-W-U-N-A-0
140769
0-0.1", 0.2", 0.5", 1",
Without Display
A/DLP-001-W-U-D-A-0
140773
0-0.1", 0.2", 0.5", 1",
With Display
A/DLP-010-W-U-N-A-0
140774
0-1", 2", 5", 10",
Without Display
A/DLP-010-W-U-D-A-0
140776
0-1", 2", 5", 10", With
Display
A/DLP-040-W-U-N-A-0
140777
0-10", 20", 30", 40",
Without Display
A/DLP-040-W-U-D-A-0
140778
0-10", 20", 30", 40",
With Display
A/DLP-001-W-U-N-A-3
141072
0-0.1", 0.2", 0.5", 1",
Without Display, With
Pitot Tube and DIN Rail
Clip
A/DLP-001-W-U-D-A-3
141073
0-0.1", 0.2", 0.5", 1",
With Display, Pitot
Tube, and DIN Rail Clip
A/DLP-010-W-U-N-A-3
141074
0-1", 2", 5", 10",
Without Display, With
Pitot Tube and DIN Rail
Clip
A/DLP-010-W-U-D-A-3
141075
0-1", 2", 5", 10", With
Display, Pitot Tube, and
DIN Rail Clip
A/DLP-040-W-U-N-A-3
141076
0-10", 20", 30", 40",
Without Display, With
Pitot Tube and DIN Rail
Clip
A/DLP-040-W-U-D-A-3
141077
0-10", 20", 30", 40",
With Display, Pitot
Tube, and DIN Rail Clip
Table 2: Standard Model #’s
The DLP can operate in either unidirectional mode (0 –X inWC) or bidirectional mode (± X inWC). Each unit could have up to eight
field selectable, uni or bidirectional ranges.
•DO NOT SWITCH PRESSURE RANGE OR OUTPUT MODE WHEN POWER IS ON.MAKE SURE POWER TO THE UNIT IS OFF.
FAILURE TO DO SO WILL NOT ALLOW ANY NEW SWITCH SETTINGS TO TAKE PLACE.
•CHOOSE DIFFERENTIAL PRESSURE RANGE BASED ON THE EXPECTED DIFFERENTIAL PRESSURE IN YOUR APPLICATION.
MOVE SWITCHES TO THE CORRECT POSITIONS AND THEN POWER ON THE TRANSMITTER.
•MAXIMUM PRESSURE
ACI Part No.
Maximum Pressure (inWC)
DLP-001-W
1
DLP-010-W
10
DLP-040-W
40
Unidirectional Mode
•DIP switch SW3 position five set at UNI side.
•DIP switch SW3 positions one and two are for Pressure Range Selection
DLP-001-W

AUTOMATION COMPONENTS, INC Version : 11.0
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Middleton, Wisconsin 53562 Page 6 of 7
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DLP-010-W
DLP-040-W
Bidirectional Mode
•DIP switch SW3 position five set at BI side.
•DIP switch SW3 positions one and two are for Pressure Range Selection.
Note: In Bidirectional mode, a value of 0 inWC will have an output equal to 50% of the output signal range (12mA, 2.5V, 5V).
DLP-001-W
DLP-010-W
DLP-040-W
ENGINEERING UNITS ADJUSTMENT
This option is ONLY for units with LCD display. Switch DIP switch SW3 position three to select Pa or inWC. If switched with
power on, unit change will not take place until power is cycled.
For units with LCD display:
“OUT OF RANGE” icon will be on when differential pressure is over or under the minimum or maximum pressure range selected.
If a DLP unit is outputting “OUT OF RANGE”, please turn off the unit immediately, and check the pressure input with a
gauge or other test instrument.
Once the pressure has been verified, set the Pressure Range Selection DIP switch to the proper positions based upon your
maximum expected differential pressure.

AUTOMATION COMPONENTS, INC Version : 11.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 7 of 7
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PRODUCT SPECIFICATIONS
Supply Voltage
4-20 mA Output: 16-36 VDC (250 Ohm Load max.) / 22-36 VDC (500 Ohm Load max.)
0-5 VDC / 0-10 VDC Output: 16-36 VDC / 24 VAC (+/- 10%)
Supply Current
4-20 mA Output: 24 mA minimum | 0-5 VDC / 0-10 VDC Output: 6 mA maximum
Output Signals
Current Output: 4-20 mA, 2-Wire Loop Powered (Standard); (Current limited to 21.4 mA max)
Voltage Signals: 0-5 VDC / 0-10 VDC Field Selectable, 3-Wire; Output limited @ 5.25 & 10.5 VDC)
Response Time (0-100% FSO)
8 seconds
Output Update Rate
1 second
Accuracy¹
+/- 0.5% FSO; +/- 0.25% (Only for Specified Range)
Zero Function
Pushbutton Zero Function
Thermal Effects²
+/- 0.067% FSO / °F (0.12% FSO / °C)
Proof Pressure / Burst
A/DLP-001: Proof: 270 inWC (67.2 kPa) | Burst: 415 inWC (103.3 kPa) for 1 inWC (249.8 Pa)
Pressure³
A/DLP-010: Proof: 350 inWC (87.12 kPa) | Burst: 550 inWC (136.9 kPa) for 10 inWC (2490.8 Pa)
A/DLP-040: Proof: 562 inWC (140 kPa) | Burst: 1004.7 inWC (250 kPa) for 40 inWC (9963.6 Pa)
Operating Temperature
Range
-4 to 185°F (-20 to 85°C)
Compensated Temperature
Range
32 to 122°F (0 to 50°C)
Storage Temperature Range
-22 to 185°F (-30 to 85°C)
Operating Humidity Range
10 to 95% RH, non-condensing
Media Types
Dry air or inert non-conductive gases
Enclosure Material /
Flammability Rating
Flame Retardant Polycarbonate; UL94-5VA
Wiring Connections
Finger Pushbutton (Spring) Terminal Blocks; accepts 16-24 AWG wires
Conduit Knockouts
Watertight Cordgrip Installed (1/2" NPT Conduit fittings accepted when Cordgrip removed)
Pressure Fitting Material
Nickel Plated Brass or Stainless Steel
Tubing Size Accepted
1/4" O.D. x 0.170" I.D. Poly Tubing
Approvals
CE, Reach, RoHS2, WEEE
Note¹: Accuracy includes linearity, hysteresis & repeatability.
Note²: Shift is relative to 77°F (25°C).
Table 3: Product Specifications
WARRANTY SPECIFICATION
The DLP Series pressure transmitters are covered by ACI’s Five (5) Year Limited Warranty, which is located in the front of ACI’S
SENSORS & TRANSMITTERS CATALOG or can be found on ACI’s web site: www.workaci.com.