Delta DPA Series User manual

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2018/05/10
Series Pressure Sensor
Instruction Sheet
Thank you very much for choosing Delta DPA series pressure sensor. Please read this instruction sheet carefully before using your DPA.
Keep this instruction sheet handy for quick reference.
Warning
DANGER! CAUTION! ELECTRIC SHOCK!
DPA is a pressure measurement device. DO NOT use it out of its specification. Improper pressure or incorrect wiring may
cause series injuries on staff or damages on other devices.
1. Keep away from high-voltage and high-frequency environment during the installation in case of interference. Prevent using the device in
premises which contain:
(a) dust or corrosive gas; (b) high humidity and high radiation; (c) shock and vibration.
2. DPA can only be used for air pressure measurement and should avoid corrosive, inflammable or toxic gas measurement.
3. Make sure the power supply is switched off when installing or dismounting DPA and the pressure source stops its action in case harms
occur on human body and properties.
4. DO use parts compatible to the specification of the pressure pore for connection to avoid mistaken measurement or safety problems.
5. Before switching on the power supply, check the signal connection, e.g. the input voltage and polarity. Voltage that is too high may cause
damages on DPA.
6. DO use dry cloth and DO NOT use acid or alkaline liquid to clean the device.
 Product Profile & Outline
1. Analog output indicator 6. UP key
2. Digital output 1 indicator 7. SET key
3. Digital output 2 indicator 8. DOWN key
4. Pressure/parameter display 9. Power supply and output terminals
5. SV/setup item display 10. Pressure input pore
Contents in the pack: Pressure sensor, signal wire, unit sticker, instruction sheet
Optional accessories: Panel mounting parts, metal mounting parts

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 Ordering Information
Series name DPA: Delta DPA series pressure sensor
12
Measurable pressure range
01: -100kPa ~ 100kPa
10: -100kPa ~ 1,000kPa
3Output types
N: NPN output + 4 ~ 20mA; P: PNP output + 4 ~ 20mA
M: NPN output + 1 ~ 5V; Q: PNP output + 1 ~ 5V
4Pressure pore types
P: Outer pore PT 1/8, inner pore M5
N: Outer pore NPT 1/8, inner pore M5
G: Outer pore G 1/8, inner pore M5
Electrical Specifications
Power supply
Voltage range 12 ~ 24V DC +/- 10% no isolation
Power consumption 40mA Max.; current output type 60mA Max.
Pressure
measurement
Pressure type Non-corrosive gas, gauge type
Measurable range
DPA01: -100kPa ~ 100kPa
DPA10: -100kPa ~ 1,000kPa
Max. durable pressure
DPA01: 200kPa
DPA10: 1,500kPa
Accuracy +/- 3% entire process
Temperature inaccuracy +/- 2% entire process
Display
Setup display 2-line LCD display, 4 digits for measured value and 3.5 digits for setup display
Status display LCD output status display
Display mode 3 colors for different modes
Cycle 100ms, 250ms, 500ms, 1,000ms
Output
Number of outputs Built-in 2 NPN or PNP transistor digital outputs and 1 analog output
Transistor output
NPN: Max. durable pressure 30V/100mA, residual voltage 1.5V
PNP: Max. durable pressure 30V/100mA, residual voltage 1.5V
Analog output
1 ~ 5V: Min. output load resistance 1,000Ω
4 ~ 20mA: Max. output load resistance 400Ω; linear inaccuracy < 2% entire process
Response time 2ms, 4ms, 10ms, 30ms, 50ms, 100ms, 250ms, 500ms, 1,000ms, 5,000ms
Output inaccuracy Linear inaccuracy: < +/- 2% entire process
Pore size
P Outer pore PT 1/8, inner pore M5
N Outer pore NPT 1/8, inner pore M5
G Outer pore G 1/8, inner pore M5
Shock immunity 10 ~ 500Hz, 10mm 3 axes for 2 hours
Vibration immunity Max. 100m/ s23 axes 6 directions, 3 times each
Ambient temperature 0°C ~ +50°C
Storage temperature -20°C ~ +65°C
Altitude < 2,000m
Ambient humidity 35% ~ 80% RH (non-condensing)

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How to Set up Parameters
Switching modes: DPA will be in the “Measuring Mode” when it is switched on, displaying PV and SV. Press for more than 2 seconds
in this mode to switch to the “Quick Setup Mode”. Press for more than 4 seconds in the “measuring mode” to switch to “Advanced
Setup Mode”. Press in the “Quick Setup Mode” or “Advanced Setup Mode” to return to the “Measuring Mode”.
Setting up parameters: In the three modes, press once to select the parameter to set up. When you find the parameter to be set up
or modify, use to modify the setting.
Quick Setup Mode:
Advanced Setup Mode:
Switching on DPA
Measuring Mode
Advance Setup
Mode
Press > 4 secs.
Press > 2 secs.
Quick Setup
Mode
Press > 4 secs.
Press > 4 secs.

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Measuring Mode:
Quick Setup Mode Advanced Setup Mode Measuring Mode
Set up OUT1 mode
Press 
Set up auxiliary display
(Change SV display method)
Press 
Set up upper limit of OUT1
(Set OUT1 to hysteresis mode / window
mode)
Press 
Set up OUT2 mode
Press 
Set up displayed speed
Press 
Set up lower limit of OUT1
(Set OUT1 to hysteresis mode / window
mode)
Press 

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Quick Setup Mode Advanced Setup Mode Measuring Mode
Set up N.O./N.C. of OUT1 and
OUT2
Press 
Set up hysteresis
Press 
SV of OUT1
(Set OUT1 to easy mode)
Press 
Set up output response time
Press 
Set up power saving mode
Press 
Set up upper limit of OUT2
(Set OUT2 to hysteresis mode / window
mode)
Press 
Set up PV display color
Press 
Set up switching color referencing
output items
Press 
Set up lower limit of OUT2
(Set OUT2 to hysteresis mode / window
mode)
Press 
Set up unit
Press Return to “set up OUT1 mode”
Set up code
Press 
SV of OUT2
(Set OUT2 to easy mode)
Press Returning to output setting
Set up copy function
Press 
Set up analog output switch
Press 
Return to default settings
Press Return to “set up auxiliary
display”
Initial Setting
1. Units: DPA provides many units for users, including kPa, kgf/cm2, bar, psi, mmHg and inchHg. In the easy mode, you can press and
find to set the unit to the desired one.
2. Output status: You can set up 2 output status in DPA, N.O. (normally open) and N.C. (normally closed). In the easy mode, you can press
and fine to set up the output status for OUT1 and OUT2.
3. Response time: Referring to the time required for the pressure to reach output status. For example, “50” refers to once the pressure has
reached the output status, it has to last for 50ms before the output starts to operate. In the easy mode, press and find .
Use to set up the response time.
Output Mode Setting
There are 3 output modes in DPA: Easy, Hysteresis and Window
1. Easy Mode: Set up pressure P. When the pressure measured is bigger than (P + dP), the output will be ON. When the pressure measured
is smaller than P, the output will be OFF. (See Figure 1: Output in Easy Mode)
In the “Measuring Mode”, press and find (OUT1) and (OUT2). Use to set up P value.
In the “Advanced Setup Mode”, press and find . Use to set up “dP” value.
[Figure 1: Output in Easy Mode]

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2. Hysteresis Mode: Set up pressure Hi/Lo. When the pressure measured is bigger than the Hi value, the output will be ON. When the
pressure measured is smaller than the Lo value, the output will be OFF. (See Figure 2: Output in Hysteresis Mode)
In the “Measuring Mode”, press and find (OUT1 Hi), (OUT1 Lo), (OUT2 Hi) and (OUT2
Lo). Use to set up Hi/Lo values.
[Figure 2: Output in Hysteresis Mode]
3. Window Mode: Set up pressure Hi/Lo. When the pressure measured is bigger than Hi or smaller than Lo, the output will be OFF. When the
pressure measured is bigger than Lo and smaller than Hi, the output will be ON. (See Figure 3: Output in Window Mode)
In the “Measuring Mode”, press and find (OUT1 Hi), (OUT1 Lo), (OUT2 Hi) and (OUT2
Lo). Use to set up Hi/Lo values.
In the “Advanced Setup Mode”, press and find . Use to set up “dP” value.
[Figure 3: Output in Window Mode]
Note: Supposed the output is ON and the output status is set to N.O. (normally open), the output will then be off. If the output status is set
to N.C (normally closed), the output will then be on. Supposed the output is OFF and the output status is set to N.O., the output will then be on.
If the output status is set to N.C., the output will then be off.
Zero Returning
In the "Measuring Mode”, press together, and you will see . The zero returning will start. Release the keys to end the zero
returning.
Analog Output
1. Full range mode:
When the input pressure starts to change, the analog output will change with the input. For example, supposed the range for input is -100kPa
~ 100kPa, and DPA reads -100kPa, the output will be 4mA or 1V. When DPA reads 100kPa, the output will be 20mA or 5V.
(See Figure 4: Full range analog Output)
2. Change analog slop mode:
When the DPA reads , the output will be 4mA or 1V. When DPA reads , the output will be 20mA or 5V.
(See Figure 5: Change analog slop output)

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[Figure 4: Full range analog Output] [Figure 5: Change analog slop Output]
Key Locking Function
Lock On: Press and together for 2 seconds until is displayed. You will then see the display of pressure value (PV) and
set value (SV).
Lock Off: Press and together for 2 seconds until is displayed. You will then see the display of pressure value (PV) and
set value (SV).
Lock Display: Press any key in the key locking mode, and you will see the display of pressure value (PV) and (SV). Release the
key, and the PV and SV will return to original values.
Switching Colors
In DPA, different output statuses can have different display colors. The output statuses for DPA are “OUT1”, “OUT2”, ”OUT1 and OUT2”,
“OUT1 or OUT2”. See below explanations for how to set:
1. Setting up output status: In the “Measuring Mode”, press for more than 4 seconds and release the key after you see . You
are now in the “Advanced Setup Mode”. Press for 5 times and find the switching color referencing items (see Advanced Setup Mode
chart). Use to select the referencing item you'd like.
2. Switching colors: In the “Measuring Mode”, press for more than 2 seconds to enter the “Quick Setup Mode”. Press for 4 times
and find the parameter for setting up colors (see Quick Setup Mode chart). Use to select the color you’d like.
Note: “OUT1 and OUT2” will be ON only when both OUT1 and OUT2 are ON; otherwise, it will be OFF. “OUT1 or OUT2” will be OFF only
when both OUT1 and OUT2 are OFF; otherwise, it will be ON.
Copy Function
DPA is able to copy the parameters in the master device to another slave device.
1. Hardware: Connect Pin 2 on master to Pin 3 on slave; Pin 3 on master to Pin 2 on slave; Pin 5 on master and slave to GND on power
supply; Pin 1 on master and slave to +24V on power supply.
2. Software:
a) Slave device: In the “Measuring Mode”, press for more than 4 seconds and release the key after you see . You are now in
the “Advanced Setup Mode”. Press for 7 times and find the parameter for setting up the copy function (see Advanced Setup
Mode chart). Use to select ( refers to Copy-Slave).
b) Master device: In the “Measuring Mode”, press for more than 2 seconds and release the key after you see . You are now
in the “Advanced Setup Mode”. Press for 7 times and find the parameter for setting up the copy function (see Advanced Setup
Mode chart). Use to select ( refers to Copy-Master). Next, press for more than 2 seconds and return
to the “Measuring Mode”. Now, you will see on the screen and on the slave device, indicating that the two devices
have been connected. On , you will see numbering counting up, referring to the number of parameters transmitted
successfully between the two devices. Once the copy of parameter succeeds, you will see on the master device and
S-L S-H

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on the slave device. That the number at stays intact refers to the copy fails.
After the copy is completed, switch off the two devices and connect them again to the power supply.
Code
DPA offers codes for the user to set up. In the “Measuring Mode”, press for more than 4 seconds and release the key after you see
. You are now in the “Advanced Setup Mode”. Press for 6 times to find the parameter to set up codes (see Advanced Setup Mode
chart). displays in turn.
See the meanings of codes in the table below:
Code
1st digit 2nd digit 3rd digit 4th digit
OUT1 mode N.O./N.C. OUT2 mode N.O./N.C. Response time Color Referencing item for color
Easy
N.O.
Easy
N.O. 2ms
Red when
ON
OUT1
N.C. N.C. 4ms
OUT2
Hysteresis
N.O.
Hysteresis
N.O. 10ms OUT1 and OUT2
N.C. N.C. 30ms
OUT1 or OUT2
Window
N.O.
Window
N.O. 50ms
Green
when ON
OUT1
N.C. N.C. 100ms
OUT2
- - - - 250ms OUT1 and OUT2
- - - - 500ms OUT1 or OUT2
- - - - 1,000ms
Red
OUT1
- - - - - OUT2
- - - - - OUT1 and OUT2
- - - - - Red
OUT1 or OUT2
- - - - -
Green
OUT1
- - - - - OUT2
- - - - - OUT1 and OUT2
- - - - - OUT1 or OUT2
Code
6th digit 7th digit 8th digit
Pressure unit Speed Auxiliary display Hysteresis setting
kPa
250ms
Standard 1
kgf/cm2Off 2
bar Unit. 3
psi
500ms
Standard. 4
mmHg Off 5
inchHg Unit 6
-- 1,000ms Standard 7

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Code
6th digit 7th digit 8th digit
Pressure unit Speed Auxiliary display Hysteresis setting
- Off 8
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How to Install Dimension
Panel: Use optional accessory DPA-PFKit.
To install the fixing frame, you have to purchase the optional
accessory: DPA-FMKit.
 Internal Circuit
Terminals
1. Positive power supply input (brown)
2. Digital output 1 signal (black)
3. Digital output 2 signal (white)
4. Analog output signal (orange)
5. Negative power supply input (blue)
NPN
(+ 1 ~ 5V output)
PNP
(
+
1
~
5V
output)
NPN
(
+ 4 ~ 20mA out
p
ut
)
PNP
(+ 4 ~ 20mA output)