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Wet/Wet Differential Pressure Transmitters for Industrial Media

0 to 300 psi, Differential, 4 to 20 mA Output


Item# PX273-300DI

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $668.63
10-24 $635.20
25-49 $621.83
50-99 $595.08
100+ $581.71

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0 to 300 psi, Differential, 4 to 20 mA Output PX273-300DI PX273-300DI
  • Liquids Can Be Applied to Both Ports
  • Zero And Span Adjustments for Field Calibration
  • Immune to Mounting Orientation or Vibration Errors
  • Rugged Steel NEMA-1 Enclosure

PX273-300DI Model Options

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Pressure Range
Pressure Type
Accuracy Class
Accuracy Value(compensated range)
Output Signal
Electrical Output
Pressure Port Size
Pressure Port Type
Operating Temperature Range

  • Excitation 24 Vdc @ 50 mA
  • Accuracy Value 0.75
  • Maximum Compensation Temperature -18°C (0°F)
  • Minimum Compensation Temperature -18°C (0°F)
  • Wetted Materials Wet Diaphragm
The OMEGA PX273 is an all stainless steel wet/wet differential pressure transmitter, incorporating dual diffused piezoresistive sensing elements with stainless steel media isolation. The unit is compatible with all media encountered in industrial applications, including freon, ammonia, treated water, and steam. The PX273 is ideal for monitoring and controlling pump differential pressure, CW/HW system differential pressure, chiller/boiler differential pressure drop, and many other industrial applications.

Excitation: 24 Vdc @ 50 mA
Output: 4 to 20 mA
Accuracy: ±0.75% FS
Zero Adjustment: ±50% FS
Span Adjustment: ±25% FS
Operating Temp: -18 to 82°C (0 to 180°F)
Compensated Temp: -18 to 65°C (0 to 150°F)
Thermal Effects:
Zero: ±0.025% FS/°F
Span: ±0.01% FS/°F
Max Static Pressure: 200% FS (each port)
Proof Pressure: 200% FS (each port)
Burst Pressure: 500% FS
Max Loop Res: 50 x (voltage supply – 14)
Response Time: 400 ms
Gage Type: Chemical vapor deposition
Wetted Parts: 316 stainless steel
Pressure Port: 1/8 NPTF
Electrical Conn: Screw terminals
Weight: 0.68 kg (1.5 lb)
Case: 16-gage steel
Dimensions: 51 H x 127 W x 89 mm D (2 x 5 x 3.5')
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I am using the PX273 transducer with the DP41-E meter. Do I need a separate power supply? Pg. 31 meter manual, fig.7-1 Current Input Without Sensor Excitation or fig. 7-2 Current Input With Sensor Excitation, which do I use?

Asked by: WaltN
Thank you for your inquiry, the DP41 can provide the 24 volts to power the sensor. You would use figure 7-2 for the current input with sensor excitation.
Answered by: rkent
Date published: 2022-08-19

Does the digital read-out come with the differential pressure transmitter?

Asked by: Tech John
No. The display is sold as a separate item. Pictured display is the DP41-E High Performance Digital Display. There are several different models of displays that will function with this sensor. An alternative economical display that would also work well with this sensor is the DP8PT.
Answered by: Applicatrions Engineer JK
Date published: 2022-02-16
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