aci ACCESS series Manual de usuario
Installation and Operation Instructions
DLP Series
AUTOMATION COMPONENTS, INC Version : 5.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 1 of 6
www.workaci.com (888) 967-5224
Figure 1: DLP Dimensions and Hardware
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
.
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 : 5.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 2 of 6
www.workaci.com (888) 967-5224
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. 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 : 5.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 3 of 6
www.workaci.com (888) 967-5224
Duct Mount Panel Mount
Figure 5: DLP Mounting
WIRING
Shielded is recommended cable with 16 to 24AWG conductors. 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 1 for 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 : 5.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 4 of 6
www.workaci.com (888) 967-5224
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.
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.
PRESSURE RANGE SELECTION
If a custom calibrated range is ordered, DO NOT change Range Selection DIP switch settings.
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 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
AUTOMATION COMPONENTS, INC Version : 5.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 5 of 6
www.workaci.com (888) 967-5224
Unidirectional Mode
DIP switch SW3 position five set at UNI side.
DIP switch SW3 positions one and two 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
See Figure 8
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).
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
See Figure 8
Figure 8: PCB Layout
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.
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, the DLP will
output 5.25V for a 0-5V output; 10.5V for a 0-10V output and 22mA for a 4-20mA output.
If a DLP unit is outputting an out-of-range diagnostic signal, 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 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 over or under the minimum or maximum pressure range selected.
AUTOMATION COMPONENTS, INC Version : 5.0
2305 Pleasant View Road I0000777
Middleton, Wisconsin 53562 Page 6 of 6
www.workaci.com (888) 967-5224
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
Pressure Ranges See Product Ordering Grid (Data Sheet); Field Selectable Uni and Bi-Directional Ranges
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
Product Weight (No Pitot
Tube OR Din Rail)
Non-LCD Display Version: 0.53 lbs (0.240 kg) | LCD Display Version: 0.58 lbs (0.263 kg)
Product Weight (With Pitot
Tube & Din Rail)
Non-LCD Display Version: 0.80 lbs (0.363 kg) | LCD Display Version: 0.85 lbs (0.385 kg)
NIST Certification 3 Point: Test Points 10%, 50%, and 90% FSO
5 Point: Test Points 10%, 30%, 50%, 70% and 90% FSO
Note¹: Accuracy includes linearity, hysteresis & repeatability.
Note²: Shift is relative to 77°F (25°C).
Note³: "x" designates both the LCD "-D-" & Non-LCD Display "-N-" versions.
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.
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