aci ACCESS series Owner's manual

Installation and Operation Instructions
DLP Series
AUTOMATION COMPONENTS, INC Version : 3.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 1 of 5
www.workaci.com [phone]
Figure 1: DLP Dimensions and Hardware
Figure 2: DLP with Pitot Tube Option
PRECAUTIONS
 R EMOVE POWER BEFORE WIRING . N EVER CONNECT OR DISCONNECT WIRING WITH THE POWER
APPLIED
. D O NOT ALLOW LIVE WIRES TO TOUCH THE CIRCUIT BOARD .
 A N ISOLATION TRANSFORMER IS RECOMMENDED WHEN POWERING THE DEVICE WITH 24 VAC .
 D
O NOT RUN THE WIRING IN ANY CONDUIT WITH LINE VOLTAGE .
 F AILURE TO WIRE DEVICES WITH THE CORRECT POLARITY WHEN USING A SHARED TRANSFORMER MAY
RESULT IN DAMAGE TO ANY DEVICE POWERED BY THE SHARED TRANSFORMER
.

AUTOMATION COMPONENTS, INC Version : 3.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 2 of 5
www.workaci.com [phone]
MOUNTING
Two size #8 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.
DIN RAIL MOUNTING (Optional Accessory Ordered)
Attach the DIN Rail Mounting accessory to the back of the enclosure using the 2 screws provided.
Figure #3: DIN Rail Mounting Accessory
WIRING
Shielded cable with 16 to 24AWG conductors is recommended. The hinged cover must be opened to wire the
unit’s finger push-button terminal blocks. Each DLP unit can be configured to three output modes: 4-20mA, 0-
5V and 0-10V. Use the Wiring Connections table below to determine the proper wiring for your application. See
Table 1 below for Output Mode and Output Signal switch positions.
Output Mode Output Mode
(SW1)
Output Signal
(SW3 Position 4)
Supply
Voltage
Wire Connections
0-5 VDC Vout 0-5 VDC (5V) VAC/VDC V+ COM VOUT
0-10 VDC Vout 0-10 VDC (10V) VAC/VDC V+ COM VOUT
4-20 mA mA n/a VDC V+ IOUT
Table 1: 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.
PRESSURE CONNECTIONS
The recommended connection tubing is ¼” push-on tubing (1/8” – 3/16” I.D.).
For Pitot Tube Installation, see separate Installation Instruction.

AUTOMATION COMPONENTS, INC Version : 3.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 3 of 5
www.workaci.com [phone]
AUTO ZERO
The DLP unit should be “ZEROED” before the pressure is applied to unit.
The Auto zero button are both used to cancel out the offsets caused by installation and sensor drift.
The Auto Zero adjustment should only be performed with NO pressure.
 Shut off your main pressure valve and open a shutoff valve with hose drain to equalize the pressure in the line to your
atmosphere.
 Push “AUTO ZERO” button for more than 3 seconds before installation or when it is necessary.
For units with LCD display:
“AUTOZERO” icon will be on when the unit enters auto zero mode. If auto zero is successful,
“AUTOZERO” icon will flash twice.
SPAN SELECTION
INPUT RANGE ADJUSTMENT
 DO NOT SWITCH PRESSURE RANGE AND OUTPUT MODE WHEN POWER IS ON.
o MAKE SURE POWER TO THE UNIT IS OFF. FAILURE TO DO SO WILL NOT ALLOW ANY NEW
SWITCH SETTINGS TO TAKE PLACE.
 CHOOSE DIFFERENTIAL RANGE BASED ON THE EXPECTED DIFFERENTIAL PRESSURE IN YOUR
APPLICATION.
o MOVE SWITCHES TO THE CORRECT POSITIONS AND THEN POWER ON THE TRANSMITTER.
 MAXIMUM LINE PRESSURE
ACI Part No. Maximum Line
Pressure (inWC)
DLP-001-W 1
DLP-010-W 10
DLP-040-W 40
The DLP can operate in either unidirectional mode (0 – X inWC) or bidirectional mode (± X inWC).
Note: If a custom calibrated range is ordered, DO NOT change Range Selection DIP switch settings.
Unidirectional Mode
 DIP switch SW3 position 5 set at UNI side.
 DIP switch SW3 positions 1 and 2 are for Range Selection
ACI Part No. SW3 Position 1: 1 SW3 Position 1: 2
Position 2: A Position 2: B Position 2: A Position 2: B
DLP-001-W 1 inWC 0.5 inWC 0.2 inWC 0.1 inWC
DLP-010-W 10 inWC 5 inWC 2 inWC 1 inWC
DLP-040-W 40 inWC 30 inWC 20 inWC 10 inWC

AUTOMATION COMPONENTS, INC Version : 3.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 4 of 5
www.workaci.com [phone]
Bidirectional Mode
 DIP switch SW3 position 5 set at BI side.
 DIP switch SW3 positions 1 and 2 are for Range Selection
Note: In Bidirectional mode, a value of 0 PSID will have an output equal to 50% of the full output range.
ACI Part No. SW3 Position 1: 1 SW3 Position 1: 2
Position 2: A Position 2: B Position 2: A Position 2: B
DLP-001-W ±1 inWC ±0.5 inWC ±0.2 inWC ±0.1 inWC
DLP-010-W ±10 inWC ±5 inWC ±2 inWC ±1 inWC
DLP-040-W ±40 inWC ±30 inWC ±20 inWC ±10 inWC
134
25
ON
Figure #4: PCB Layout
ENGINEERING UNITS ADJUSTMENT
This option is ONLY for units with LCD display. Switch DIP switch SW3 position 3 to select Pa or inWC.
Advanced Features
DIAGNOSTIC OUTPUT
Each DLP unit has the feature to check the pressure on the sensor. When the sensor’s input pressure is out of
range, DLP will output 5.25V for 0-5V mode; 10.5V for 0-10V mode and 22mA for 4-20mA mode.
If a DLP unit is outputting out-of-range diagnostic signal, please turn off the unit, shut down the valves
immediately and check the pressure input with a gauge or other test instrument.
Once the pressure has been verified, set the Range Selection DIP switch to the proper positions based
upon your maximum expected differential pressure.
For units with LCD display:
 “OUT OF RANGE” icon will be on when differential pressure is out of range.

AUTOMATION COMPONENTS, INC Version : 3.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 5 of 5
www.workaci.com [phone]
PRODUCT SPECIFICATIONS
Supply Voltage 4-20mA Output: 250 Ohm Load 16-36 VDC
4-20mA Output: 500 Ohm Load 20-36 VDC
0-5 VDC Output: 16-36 VDC / 24VAC (+/-10%)
0-10 VDC Output: 16-36 VDC / 24VAC (+/-10%)
Supply Current 24mA minimum
Output 2-wire, 4 to 20mA DC Current
or 3-wire, 0-5 or 0-10VDC
Sensor Accuracy1 ±0.5% FSO (includes linearity, hysteresis and repeatability)
±0.25% FSO with special calibration
Response Time 8 S
Operating Temperature Range -4 to 185°F (-20 to 85°C)
Compensated Temperature Range 32 to 122°F (0 to 50°C)
Humidity 10 to 95% RH, non-condensing
Thermal Effects2 ±0.067%FSO/ ºF (±0.12%FSO/ ºC)
Proof Pressure 270 inWC (67.2 kPa) for 1 inWC(0.25 kPa) range
350 inWC (87.1 kPa) for 10 inWC(2.5 kPa) range
562 inWC (140 kPa) for 40 inWC(9.95 kPa) range
Burst Pressure 415 inWC (103.3 kPa) for 1 inWC(0.25 kPa) range
550 inWC (136.9 kPa) for 10 inWC(2.5 kPa) range
1004.7 inWC (250 kPa) for 40 inWC(9.95 kPa) range
Media Dry air or inert non-conductive gases
Features DIP switch selectable ranges and outputs
Push button/Remote Auto Zero
Finger Push-Button Terminal Blocks
LCD Features (optional) Large 4-digit LCD display
DIP switch selectable display units (Pa or inWC)
Out-Of-Range Diagnostic Output
Enclosure UL94-V5 rated, flame retardant Polycarbonate
Approvals REACH
RoHS
WEEE
Note 1: Accuracy includes linearity, hysteresis and repeatability.
Note 2: Shift is relative to 77°F (25°C).
Table 2: 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.