Overview
The Omega PX309-3KGI is an all-stainless-steel 0-3000 psi gage pressure transducer from the PX309 general-purpose series, delivering ±0.25% BSL static accuracy in a rugged, solid-state design. This range uses silicon strain gages molecularly bonded to the stainless diaphragm for stable, low-drift performance. It outputs a 4-20 mA signal, carries an IP65 protection rating, and ships with a 5-point NIST-traceable calibration certificate. The PX309 is multimedia-compatible for use with a wide range of liquids and gases.
Best for
- General-purpose industrial pressure measurement on a budget without sacrificing stainless durability
- OEM equipment, hydraulics, pumps, compressors, and process monitoring
- 4-20 mA input PLCs, data loggers, and panel meters
- Multimedia applications across compatible liquids and gases
Warranty
Backed by Omega's standard 13-month warranty (1-year coverage plus a one-month shipping grace period) against defects in materials and workmanship. ZOT Supply is an authorized Omega distributor offering fast nationwide and international shipping. Each unit ships with its 5-point NIST-traceable calibration certificate.
Key Features
±0.25% BSL Accuracy
Combined linearity, hysteresis, and repeatability for this unit, verified with a 5-point NIST-traceable calibration certificate.
All-Stainless Construction
316 stainless steel build with 316 SS wetted parts for broad multimedia compatibility and long service life.
Bonded Strain-Gage Element
Silicon strain gages molecularly bonded to the stainless diaphragm deliver rugged, stable performance at higher pressures.
Rugged Solid-State Design
High stability and low drift with a 10-million-cycle pressure rating and ±0.25% FS typical long-term (1-year) stability.
IP65 Protection
Sealed to IP65 for dusty and washdown-adjacent industrial environments.
4-20 mA Loop Output
Provides a 4-20 mA current-loop output with reverse-polarity and over-voltage protection for long-run, noise-immune signaling.
Technical Specifications
| Specification | Value |
|---|---|
| Pressure Range | 0-3000 psi (0-207 bar) |
| Pressure Type | Gage |
| Output | Current Loop (4 to 20 mA) |
| Supply / Excitation | 9 to 30 Vdc |
| Accuracy (Linearity, Hysteresis, Repeatability) | ±0.25% BSL maximum |
| Long-Term Stability (1-Year) | ±0.25% FS typical |
| Operating Temperature | -40 to 85°C (-40 to 185°F) |
| Compensated Temperature | -20 to 85°C (-4 to 185°F) |
| Pressure Cycles | 10 million minimum |
| Sensing Technology | Silicon strain gages molecularly bonded to the stainless diaphragm |
| Process Connection | 1/4-18 NPT Male |
| Electrical Termination | 1.5 m (5') Integral Cable |
| Wetted Parts | 316 Stainless Steel |
| Environmental Protection | IP65 |
| Response Time / Bandwidth | <1 ms / DC to 1 kHz typical |
| Approvals | CE, RoHS; 5-point NIST-traceable calibration included |
Documentation
Frequently Asked Questions
What does the accuracy specification include?
It combines linearity, hysteresis, and repeatability into a single best-straight-line figure for total measurement error.
Does this transducer come calibrated?
Yes. Every unit ships with a 5-point NIST-traceable calibration certificate.
What is the gage pressure reference?
This model references ambient atmosphere through a vented cable, reading pressure relative to the surrounding atmosphere.
What environments can it handle?
It is sealed to IP65 with all-stainless construction for rugged industrial use.
- Brand:
- Omega
- Series:
- PX309
- Pressure Type:
- Gage
- Pressure Range:
- 0-3000 psi
- Output Signal:
- 4-20 mA
- Accuracy:
- 0.25% BSL
- Process Connection:
- 1/4 in Male NPT
- Electrical Connection:
- 1.5 m Cable
- Environmental Rating:
- IP65
- Wetted Material:
- 316L SS
