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Differential, High Accuracy, Digital Pressure Gauge with Output

0 to 30 psi, Differential


Item# DPG409-030DWU

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $1,786.73
10-24 $1,697.39
25-49 $1,661.66
50-99 $1,590.19
100+ $1,554.46

In stock

Lead Time (If not in stock): 16 weeks
0 to 30 psi, Differential DPG409-030DWU DPG409-030DWU
  • Wet/Wet Differential Pressure Measurement
  • 5-Point NIST Traceable Calibration included
  • Easy to Read 25 mm (1') Backlit LCD Display
  • High 0.08% Accuracy

DPG409-030DWU Model Options

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Pressure Range Units
Pressure Range Min
Pressure Range Max
Pressure Range
Additional Features
Pressure Type
Pressure Port Type
Pressure Port Size
Power Source
Accuracy value
Accuracy Class
Number of Digits
Electrical Output
Output Signal

  • Accuracy Value ±0.08% BSL
  • Display Digit Height 25 mm
  • Maximum Ambient Temperature 66°C (150°F)
  • Maximum Storage Temperature 82°C (180°F)
  • Measurement Type Pressure
  • Minimum Storage Temperature -40°C (-40°F)
  • Number of Display Digits 4
  • Repeatability ±0.08% BSL
  • Pressure Units psi
  • Sample Rate User programmable from 1 sample/2 min to 1 sample/2 sec
  • Wetted Materials 316L stainless steel
OMEGA’s DPG409 digital differential pressure gauge incorporates a rugged 316 SS enclosure designed for washdown and marine applications with a precision 0.08% accuracy pressure transducer and 316L SS wetted parts and body. The result is an extremely durable digital pressure gage. You get all the durabilty and stability of the micromachined silicon sensor in a rugged NEMA 4X (IP65) package.

CE Compliant: Meets EN61326-1: 2006 for industrial locations with analog output cables <3 m (9.8') and supplied ferrite core
Accuracy (Combined Linearity, Hysteresis and Repeatability): ±0.08% BSL
Storage Temperature: -40 to 82°C (-40 to 180°F)
Operating Temperature: -18 to 66°C (0 to 150°F)
Temperature Corrected: Over operating temperature
Thermal Effects (Over Operating Range):
Zero Balance:
    Ranges 10 inH2O to 1 psi: ±1% span
    Ranges >1 psi: °0.5% span
    Ranges 10 inH2O to 1 psi: ±1% span
    Ranges >1 psi: ±0.5% span
Minimum Resistance Between Transducer Body and Any Wire: 100M Ω @ 50 Vdc
Pressure Cycles: 1 million min
Long Term Stability (1-Yr.): ±0.1% FS typical
Analog Output: User selectable 0 to 5 Vdc, 0 to 10 Vdc or 4 to 20 mA (external 24 Vdc power supply required for all analog output types)
Note: Analog output is independently scalable
Analog Output Cable: 2.7 m (9') with ferrite core (included)
Analog Output Accuracy: 0.08% typical (0.15% max in RF field @ 10V/m
Line/Static Pressure: 500 psi max applied to both sides simultaneouly
Proof Pressure (Differential):
    10 inH2O = 10 times range
    1 psi = 6 times range
    2.5 to 750 psi = 4 times range
    1000 psi Range = 3 times range
Hi-Side Containment Pressure (Differential):
10 inH2O to 5 psi: To 1000 psi
15 to 1000 psi: To 3000 psi
Display: 4-digit LCD with user selectable backlighting, (9999 count) 25 mm (1') character height
Sample/Display Rate: User selectable from 0.25 to 10 sec (preset to 1/sec)
Computer Interface: UBS connection for set-up, cable included
Power: One 3.6V lithium 4.8 Ah capacity (C cell) included (two included with wireless option)
Battery Life (Typical): Up to 4-years
Enclosure Material: 316 Stainless Steel and ABS center gasket
Enclosure Finish: Electropolished
Enclosure Environmental Rating: Weatherproof, NEMA 4X (IP65)
Sensor Wetted Parts: 316L Stainless Steel
Pressure Connection: ¼-18 NPT male
Connection Location: Lower
    Display: 115 D x 89 W x 74 H mm (4.5 x 3.5 x 2.9')
    Sensor: 72 to 89 mm L (2.8 to 3.5') below display, 80 mm (3.1') wide
Weight: 1 kg (2.2 lb) Typical depending upon configuration
Front Panel Functions:
Backlight: Manually turns backlight on/off
Min/Max: Recalls min/max values
Zero/Clear: Zeros display or clears min/max
Software Settings (via USB)
Update Rate: 4 options, 10, 5, 2, 1 times per second
Units: psi, inHg, inH2O, bar, mbar, hPa; must be specified at time of order
Lock: Allows the lock-out of front panel functions
Alarms: User selectable “High” and “Low” alarm limits (open collector)
Analog Output: User Selectable 0 to 5 Vdc, 0 to 10 Vdc, or 4 to 20 mA (requires external 24 Vdc power)
Backlight: On/Off, 10 sec, 30 sec, 1 min, 5 min
Wireless Transmitter (Optional): Channel number, transmission rate, alarms, sensor offset, chart recording, data logging
Calibrate: Zero and span
Overrange Indication: “_ _ _ _”
Transmit Sample Rate: User programmable from 1 sample/2 min to 1 sample/2 sec
Radio Frequency (RF)
Transceiver Carrier: ISM 2.4 GHz
RF Output: 10 dBm (10 mW)
Range of RF Link: Up to 120 m (400') outdoors (line of sight); Up to 40 m (130') indoors/urban
Included Software: Requires Windows® 7 (32 bit); XP, Vista
Internal Battery: Two 3.6V lithium 8.4 Ah capacity (C-cell) included
Data Transmission to Host: Pressure reading, ambient temperature reading, RF transmit strength and battery level

NOTE: Models with wireless option are approved for use in the U.S., Canada and Europe only.
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Rated 5 out of 5 by from Getting what we need Just what we need to get the job done at the right price
Date published: 2023-08-04
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Does this product have a panel mounting kit?

Asked by: Patrick981
Thank you for your inquire. Unfortunately we do not offer a panel mounting kit for the DPG409 series, most customers use the pressure port to Mount the unit so it's vertical. hope this was helpful
Answered by: application engineer je
Date published: 2020-07-06
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