New-Flow DPG3100T Series User manual

Instruction Manual
MANUFACTURE OF DIGITAL PRESSURE SWITCH 1”
DPG3100T SERIES
AND CONTROL INSTRUMENTS

New-Flow Digital Pressure Switch 1” Instruction Manual
page 1
Application
Specification
1.0 DESCRIPTION
The DPG3100T digital pressure switch is designed for gas or fluid applications ranging from vacuum -1bar to 250bar.
Applications that require highly visible pressure readout, but have limited space are a perfect fit for this 1” cube meter.
Many applications require digital outputs to change state at a specific pressure. The digital pressure switch has two fully-programmable
digital outputs available in NPN configuation, standard. When a digital output changes state, the display can be programmed to change
to a different color, seven colors available. This feature is useful for “at a glance” visual verification. When using the sensor as a pressure
switch hysteresis settings as well as window settings can be programmed as well.
An analog output is also available as an option. The analog output option can be ordered as either a current output or voltage output
(4~20mA). The analog retransmission is useful for remote monitoring.
Fluid A (Air)
Pressure Range -1bar ~ 250bar
L (Liquid)
-1bar ~ 250bar
Material Front & Rear Cover: ABS
Port: Zn Alloy
Front and Rear cover: ABS
Port: SS304L
Vibration 10 to 500 Hz freq., 0.06” (1.5mm) amplitude in X, Y, Z
directions for (2 hours).
Burst Pressure (Min.) 300 psi 2 x F.S.
Accuracy (BFSL) ±1% F.S. ±1% F.S.
Applicable Media Non-Corrosive Gas Gases and Fluid
Supply Voltage 10 to 30 VDC
Current Consumption 80 mA (max.)
Output NPN mode, with 100mA, 30VDC (max.)
Temperature Reading Range 32 to 212°F (0 to 100°C)
Temperature Accuracy ±4°F (2°C)
Working Temp. 14 to 140°F (-10 to 60°C) (Non-Frozen state)
Storage Temp. -4 to 158°F (-20 to 70°C) (Non-Frozen state)
Working Humidity 35~85%
Storage Humidity 35~85%
Pressure Port Configuration 1/8”PT(F) x 2
Shock 100g (980 m/s²) in X, Y, Z directions (3 times for each direction)
IP Grade IP54
Connection Cable UL2464, 28AWG, 5P, ø4mm, 50cm
Weight spprox. 0.15kg
Repeatability ±1% of full scale
Response Time 135 ms
Acceleration 10g (98 m/s²) (3 times for each direction)

New-Flow Digital Pressure Switch 1” Instruction Manual
page 2
Operating Instructions
NPN Output Wiring
2.0 INSTRUCTIONS
3.0 INITIAL OPERATION
LED Indicators
Out1 and Out2 LED Indicators illuminate
when each digital output is ON.
DPG 3100T OUT1 OUT2
Un-Lock / Adjusting Key
Used to index setpoint information when
setting up the meter, as well as Key-UnLock
function.
Front Panel Description
Electrical Color Codes
Setting Key
Used to enter the meter into setting adjust mode
and functions as an entry key, as well as to display
current media temperature.
3½ Digit LCD Display +
7 Colors LED Backlighted
Lock / Carry Key
Used to scroll laterally to the
next digit, as well as Key-Lock
function.
Switch & Analog Output
White
Digital Output 2
Available: NPN (100mA, max. 30VDC)
Brown
Supply Power (+),
10 to 30 Volts DC
Yellow
Standard: Not Used
Optional: Analog Output (+)
Blue
Power Ground (−)
Block
Digital Output 1
Available: NPN
(100mA, max. 30VDC)
White
Blue
Black
Yellow
Brown
Sensor Cable
+
12 Volt DC
Supply
4~20mA
12 Volt DC
SPST Relay
12 Volt DC
SPST Relay
Common
Coil
Coil
N.C. N.O.
Common
N.C. N.O.
DPG 3100T OUT1 OUT2
Once Power is applied, the display will show the current pressure (factory default units: psi)
To display the current temperature, tap the Setting Key (factory default unit: °F).
After 5 seconds the display will automatically return to pressure mode.

New-Flow Digital Pressure Switch 1” Instruction Manual
page 3
Setting the Zero Pressure
3.0 INITIAL OPERATION
DPG 3100T OUT1 OUT2
Without any external pressure applied (open to the atmosphere) simultaneously
press and hold the Adjusting Key and the Carry Key for more than 3 seconds.
This captures the pressure and resets the display to read zero at this pressure.
Lock / Un-Lock Keys
LOCK:
Press and hold the Carry Key for 3 senconds, all key function will be Locked.
(Except Un-Lock function). The display will show “LoC” for 2 seconds than
return to normal display.
Un-Lock
Press and hold the Adjusting Key for 3 seconds, all key function will be Un-Locked.
The display will show “UnC” for 2 seconds than return to normal display.
Setting the Parameters
To enter the parameter setting mode, press and hold the setting key for more
than 3 seconds when in pressure display mode.
Note.: Must be in pressure display mode for this keystroke to problem this
function.
1. Pressure Unit Parameter:
The first parameter encountered when entering the parameter setting mode
is pressure units.
The table below shows the value for each pressure unit.
2. Temperature Unit Parameter:
The next parameter encountered is for setting temperature units.
The table below shows the value for each temperature unit.
 
DPG 3100T OUT1 OUT2

DPG 3100T OUT1 OUT2

LOCK:
Press and hold the Carry Key for 3 seconds.
Un-LOCK:
Press and hold the Adjusting Key for 3 seconds.
DPG 3100T OUT1 OUT2

Setting
Unit
P-1
psi
P-2
bar
P-3
kg/cm²
P-4
KPa
P-5
MPa
P-6
in Hg
P-7
cm Hg
P-8
Atm
To set the pressure unit, scroll through the options by pressing the Adjusting Key
unit the setting matching the desired unit is displayed.
Once the desired setting is displayed, press the Setting Key. The displayed setting
will be entered and the next parameter setting, temperature in this case, will be displayed.
Setting
Unit
t-°C
Celsius
t-°F
Fahrenheit
To set the temperature unit, scroll through the options by pressing the One-Way Adjusting Key
unit the setting matching the desired unit is displayed.
Once the desired setting is displayed, press the Setting Key. The displayed setting
will be entered and the next parameter setting, output mode in this case, will be displayed.

New-Flow Digital Pressure Switch 1” Instruction Manual
page 4
3.0 INITIAL OPERATION
Setting the Parameters
3. Output Mode of Out1 Parameter:
The next parameter encountered is for setting the digital output mode for Output 1. There are two major types of output modes
for the digital output; Hysteresis mode and Windowed mode.
Hysteresis mode has two types of actuation, active low and active high, as shown in the figures left below.
Active Low:
Turn the output off when the pressure has reached the high setpoint (green line). The output remains off until the pressure has
dropped below the low setpoint (blue line).
Active High:
Turns the output on when the pressure has reached the high setpoint. The output remains on until the pressure has dropped below
the low setpoint.
Windowed mode also has two types of actuation, active low and active high, as shown in the figures right above.
Active Low:
Turns the output off when the pressure is between the high setpoint (green line) and the pressure low setpoint (blue line).
Active High:
Turns the output on when the pressure is between the high setpoint (green line) and the pressure low setpoint (blue line).
The display will show “1o-x”, use the following table to set the Output mode of Out 1.
4. High Setpoint for Out1 Parameter:
The next parameter encountered is for setting the high setpoint (green line on above graph) for Output 1. The display will quickly flash
“1H” and then it will display the current value of the high setpoint.
Once the desired setting is displayed, press the
Setting Key. The displayed setting will be entered
and the next parameter setting, High SetinPoint for
Out 1 Parameter, in thie case, will be displayed.
Pressure
(PSI)
10
20
30
40
50
Time
High Set Point
Low Set Point
ON
OFF
ON OFF ON OFFON
OFF
ON
ON (OFF)
OFF (ON)
Digital Output
L (NC) / H (NO)
Window: L (NC) / H (NO)
Pressure
(PSI)
10
20
30
40
50
Time
High Set Point
Low Set Point
OFF NO OFF
ON (OFF)
OFF (ON)
Digital Output
L (NC) / H (NO)
Hysteresis: H (NO) / L (NC)
DPG 3100T OUT1 OUT2
Mode 1
Hysteresis
Out1 Active
Low
“1o-1”
2
Hysteresis
Active
High
“1o-2”
3
Window
Active
Low
“1o-3”
4
Window
Active
High
“1o-4”
To set the high setpoint, increment the current digit (flashing) by pressing the Adjustment Key until the display matches
the desired setpoint. The digit will reset to zero (roll over) after nine has been reached in case the desired number has been
accidentally passed.
Once the rightmost digit has been set, press the Setting Key to go to the next parameter.
To scroll to the next digit, tap the Carry Key.

New-Flow Digital Pressure Switch 1” Instruction Manual
page 5
3.0 INITIAL OPERATION
Setting the Parameters
5. Low Setpoint for Out1 Parameter:
The next parameter encountered is for setting the low setpoint (blue line on the graphs) for Output 1. The display will
quickly flash “1L” and then it will display the current value of the low setpoint.
This value is entered exactly like the high setpoint, discussed above.
Once the rightmost digit has been set, press the Setting Key
to go to the next parameter.
Once the desired setting is displayed, press the Setting Key. The displayed setting will be entered and the next parameter
setting, High Setpoint for parameter 2 in this case, will be displayed.
DPG 3100T OUT1 OUT2
6. Output Mode of Out2 Parameter:
The display will show “2o-x”, use the table below to set the output mode of Out 2.
DPG 3100T OUT1 OUT2
The next parameter encountered is for setting the digital output mode
for Output 2. There are two major types of output modes for the digital
output; Hysteresis Mode and Windowed Mode.
Output 2 operates similar to Output 1, but it has additonal functionality.
Output 2 can either be controlled by a pressure setpoint or a temperature
setpoint. If modes 5~8 are selected, the high and low setpoints will have
either °C or °F indicating that they are temperature setpoints.
Mode 1
Pressure
Out2 Hysteresis
Active
Low
“2o-1”
2
Pressure
Hysteresis
Active
High
“2o-2”
3
Pressure
Window
Active
Low
“2o-3”
4
Pressure
Window
Active
High
“2o-4”
5
Temp.
Hysteresis
Active
Low
“2o-5”
6
Temp.
Hysteresis
Active
High
“2o-6”
7
Temp.
Window
Active
Low
“2o-7”
8
Temp.
Window
Active
High
“2o-8”
7. High Setpoint for Out2 Parameter:
The next parameter encountered is for setting the high setpoint for Output 2. The display will quickly
flash “2H” and then it will display the current value of the high setpoint.
To set the high setpoint, increment the current digit (flashing) by pressing the
Adjusting Key until the display matches the desired setpoint. The digit will reset
to zero (roll over) after nine has been reached in case the desired number has been
accidentally passed.
Once the rightmost digit has been set, press the Setting Key to go to the next parameter.
Once the rightmost digit has been set, press the Setting Key to go to the next parameter.
To scroll to the next digit, tap the Carry Key.
DPG 3100T OUT1 OUT2
8. Low Setpoint for Out2 Parameter:
The next parameter encountered is for setting the low setpoint for Output 2. The display will quickly
flash “2L” and then it will display the current value of the high setpoint.
DPG 3100T OUT1 OUT2

New-Flow Digital Pressure Switch 1” Instruction Manual
page 6
3.0 INITIAL OPERATION
Setting the Parameters
9. Display Color Based on Out1 High Parameter:
The next parameter encountered is display color based on Out1 high
setpoint.
The display color can be programmed to change based on Output1
High and Output 1 low setpoints.
DPG 3100T OUT1 OUT2
Using the table on the next page, set the desired screen color
based on the “bHx” number by using the Adjustment Key.
10. Display Color Based on Out1 Low Parameter:
The next parameter encountered is display color based on Out1 low setpoint.
Using the table above, set the desired screen color based on the “bLx” number
by using the Adjustment Key.
Color
bL-1
Dark
Blue
bL-2
Green
bL-3
Light
Blue
bL-4
Red
bL-5
Purple
bL-6
Yellow
bL-7
Number bH-1 bH-2 bH-3 bH-4 bH-5 bH-6 bH-7
White
Once completed, press the Setting Key to go to the next parameter.
Once completed, press the Setting Key to go to the next parameter.
11. Display Update Time:
The next parameter encountered is Display Update Time. The time setting can be from 0
(No Delay) to 9 seconds.
To set display update time, increment the latest digit (flashing) by pressing the
Adjustment Key until the display matches the desired Update Time.
Once completed, press the Setting Key to load and save the parameter.
DPG 3100T OUT1 OUT2
DPG 3100T OUT1 OUT2
DPG 3100T OUT1 OUT2
Finally, the display will read “loAd” for approximately 3 seconds.
During this time the parameters are saved and loaded. The sensor will
return to pressure display mode atuomatically.

New-Flow Digital Pressure Switch 1” Instruction Manual
page 7
4.0 MOUNTING METHOD
Mounting Brackets
Two styles of mounting brackets are included with each sensor.
These brackets allow for mounting on either a vertical surface or a horizontal surface.
the brackets are installed as shown below. The sensor has two threaded mounting holes on the back side
that either bracket screws into.
45
45
20.1
22.1
30
20.1
20.1
6.1
35.1
25
14
ø4.6
ø4.6
5.6
13 20.1
20.1
6
30
unit=mm
45 42.2 40
40 42.2
unit=mm
NOTE.
Panel Thickness Range
1.27 to 3.175mm
Panel Cutout Dimensions
min. 36.2 x 36.2 mm
max. 36.8 x 36.8mm
Panel Mounting
An alternative to mounting the sensor with the brackets is to use the panel mount option, included with the sensor.
The panel mount assembly accepts a wide range for the panel cutout due to the spring loaded clips molded into the housing.
Pressure Port Configuration
For convenience, the sensor has two pressure port locations that
are 90° apart from each other. Depending on the application, it is
sometimes advantageous to use one port over another.
As shown the figure, once a port has been chosen, the other port
must be blocked to prevent pressure from escaping into the
atmosphere. A set screw, provided, is used to block the unused
port. It is advised to use thread sealant when installing the set
screw.