EMERSON Safety Manual Series DPS280 DVS280 ASCO
Summary
Monitor fluid and air levels with the DPS280/DVS280 digital switch series, designed for precise pressure and vacuum detection in industrial applications. This comprehensive manual provides technical guidance on installation, electrical wiring, and advanced operation, including setting Hysteresis or Window Comparator modes tailored to your process needs. Learn how to configure set points within specified operating ranges while utilizing integrated error codes and troubleshooting guides for reliable system maintenance by engineers and technicians.
Page 1 Text Content
DPS280 / DVS280 Series
Do not use corrosive or flammable gases or liquid with this product. Please use within the rated pressure range. Do not apply pressure beyond recommended maximum pressure, permanent damage to the pressure sensor may occur. Do not drop, hit or allow excessive shock. Even if switch body appears undamaged, internal components may be broken and can cause malfunction. Turn power off before connecting wiring. Incorrect wiring or short circuit will damage and / or cause malfunction. Do not use in environment where steam or oil vapor is present. This product is not explosion-proof rated. Do not use in atmospheres containing flammable or explosive gases. Avoid wiring the sensor cable adjacent to or in the same cable tray with power or high voltage lines. Doing so could cause malfunction due to noise. This product is not a safety sensor. Its use is not intended to protect life and prevent bodily injury or property damage from dangerous parts or machinery. It is a normal object detection sensor.
DPS280 DVS280
SPECIFICATIONS
(PRESSURE) (VACUUM) 0 ~ 1000 k Pa 0.0 ~ - 101.3 k Pa
Rated pressure range
0 ~ 145 PSIG 0 ~ 29.9" Hg Vacuum -100 ~ 1000 k Pa 10.0 ~ - 101.3 k Pa
Operating / Set pressure range
- 14.5 PSIG ~ + 145 PSIG 1.45 PSIG ~ 29.9" Hg Vacuum
Maximum pressure 1500 k Pa 300 k Pa (Exceeding max pressure could damage switch) 217.5 PSIG 43.5 PSIG Fluid Air, Non-corrosive gases, incombustible gases
k Pa 0.1 kgf/cm2 0.01 0.001 Set pressure bar 0.01 0.001
resolution
psi 0.1 0.01 In Hg 0.1 mm Hg
Power supply voltage 12 to 24VDC ± 10 %, Ripple (P-P) 10 % or less Current consumption ≤ 45m A (with no load)
PNP open collector NPN open collector Max. load current: 125m A Max. load current: 125m A
Switch output Max. supply voltage: 24VDC Max. supply voltage: 30VDC
Residual voltage: 1.5V Residual voltage: 1.5V (load current 125m A) (load current 125m A)
Repeatability (Switch output) ≤ ± 0.2 % F.S. ± 1 digit Hysteresis mode
Adjustable
Window comparator mode
≤ 2.5ms (chatter-proof function: 24ms, 250ms, 500ms, 1000ms and
Response time
1500ms selections)
Output short circuit protection Yes 7 segment LCD display Two color (red/green) display (sampling rate: 5 times/1sec.) Indicator accuracy ≤ ± 2.0 % F.S. ± 1 digit (ambient temp: 77°F ± 5°F / 25°C ± 3°C) Switch ON Indicator Green OUT Indicator
Enclosure IP40
Operation: 0°F ~ 122°F / 0°C ~ 50°C, Storage: 14°F ~ 140°F / -10°C ~
Ambient temp. range 60°C
(no condensation or freezing)
Ambient humidity range Operation/Storage: 35 ~ 85% RH (no condensation)
Environment
Withstand voltage 1000VAC in 1-min (between case and lead wire) Insulation resistance 50Mohm min. (at 500 VDC, between case and lead wire)
Total amplitude 1.5mm, 10Hz-55Hz-10Hz scan for
Vibration
1 minute, two hours each direction of X,Y and Z
Shock 100m/s2 (10G), 3 times each in direction of X,Y and Z
≤ ± 2% F.S. of detected pressure (77°F / 25°C) at temp.
Temperature characteristic
Range of 0°F ~ 122°F / 0°C ~ 50°C
Port size 1/8 NPT Male x 10-32 UNF Female, 1/8 PT x M5, G 1/8 x M5 Lead wire Oil-resistant cable (0.15 mm2 )
Approx 45g - Switch only
Weight
Approx 90g - Switch with 2M mating cable
DPS280 / DVS280 Series
Page Summary Contents For EMERSON Safety Manual Series DPS280 DVS280 ASCO
Manual Details
| Brand | Emerson |
|---|---|
| Pages | 6 |
| File Size | 1.10 MB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What are the operational limits for this switch?
DPS280/DVS280 operate over a pressure range of 0~1000 kPa and a vacuum range of 0.0~-101.3 kPa, with maximum ranges specified.
How do I prevent internal damage during setup?
Do not drop, hit or allow excessive shock. Also, always turn power off before connecting wiring to prevent malfunction.
What types of gases are safe to use with the product?
It is designed for Air and non-corrosive / incombustible gases.
How is repeatable accuracy determined by settings?
Hysteresis mode should be set greater than ±0.2% of FS repeatability to prevent digital output chatter.