HANUMAN Services
HANUMAN can offer you with such series of digital pressure switches as DPS-2 universal type, DPS-3 economic type, DPS-5 anti-corrosion type, DPS-6 economic type, DPS-7 IP65 type, DPS-8 IO-LINK type.
The front panel of DPS-3 generally includes locking indicator, output indicator, pressure unit, main display area, up button, set button, down button, electric interface, and pressure interface.
For the pressure interface, there are many port connection types for your choice, including M5 female thread, R1/8″ fitting (M5 female thread), NPT1/8″ fitting (M5 female thread), G1/8″ fitting (M5 female thread), Ø4 mm one-touch straight fitting, Ø6 mm one-touch straight fitting, Ø4 mm one-touch elbow fitting, and Ø6 mm one-touch elbow fitting.

Specifications
|
Model |
DPS-301 (Compound pressure) |
DPS-310 (Positive pressure) |
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|
Pressure |
Rated pressure range |
-100 to +100 kPa |
-0.1 to +1 MPa |
|
Set pressure range |
-100 to +100 kPa |
-0.1 to +1 MPa |
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|
Proof pressure |
500 kPa |
1.5 MPa |
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Fluid |
Air, non-flammable gas, non-corrosive gas |
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Measuring accuracy |
±2% F.S. or less (Ambient temperature 25 ℃) |
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Temperature error |
±3% F.S. or less (Temperature range 0 to 50 ℃) |
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Measuring mode |
Single point mode |
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Hysteresis mode |
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Window mode |
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Port size |
Optional male thread R1/8”, NPT1/8”, G1/8”, female thread M5 |
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Display |
Basic description |
LCD display, four digits seven segments of measuring values, with unit and output status |
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Display mode |
Adjustable backlight, four sets in total |
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Input power supply |
Voltage range |
12 to 24 VDC, ±10% |
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Power consumption |
40 mA Max. (No load) |
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Output signal |
Transistor output |
NPN open collector output, output current 80 mA Max., internal pressure drop 1 V or less; PNP open collector output, output current 80 mA Max., internal pressure drop 1 V or less |
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Response time |
Adjustable: 2.5 ms, 20 ms, 100 ms, 500 ms, 1000 ms, 2000 ms |
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Short circuit protection |
Yes |
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Environmental resistance |
Enclosure |
IP40 |
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Operating temperature |
Operating 0 to 50 ℃, stored -20 to 60 ℃(No freezing or condensation) |
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Operating humidity |
Operating/stored 35% to 85% RH (No condensation) |
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Insulation voltage |
1000 VAC for one minute between terminals and housing |
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Insulation resistance |
50 mΩ or more (500 VDC) |
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Impact resistance |
100 m/s2 Max., three axles, six directions, each for three times |
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Vibration resistance |
Amplitude 1.5 mm, 10 to 500 Hz, three axles, each for two hours |
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Cable connector |
2000 mm |
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Attention
I. It is only used for measuring the air pressure.
II. It is not allowed to use under high temperature and humidity.
III. The power and pressure supply source shall be cut off before installation or removal.
IV. The technical parameters shall be checked that whether they are totally conforming with the actual requirements or not.








