PX176

Waterproof Pressure Transducers - Discontinued, See PX309

±1% Interchangeability
Sealed for Harsh Environments
1 to 6 Vdc Output
9 to 20 Vdc Power

See Product Overview

This item is discontinued.

Please contact Technical Sales Team for assistance.

Data Sheet

Product Overview

Accuracy ± 1 %
Accuracy Class > 0.25%
Accuracy Detail ± 1% Full Scale
Burst Pressure 20x Full Scale
Burst Pressure Note 20X FS; 10X: 50 to 200 psi; 5X: 500 psi and up
Cable Length 900 mm
Cavity Volume 14.9 cc
Compensated Temperature, Max 85 °C
Compensated Temperature, Min 0 °C
Electrical Connection Cable
Electrical Output 1 to 6 V
Enclosure Material 300 Stainless Steel
Gauge Type Piezoresistive on bending beam
Hysteresis ± 0.25% FS
Input Resistance 2 MΩ
Linearity Error ± 0.50%
Operating Temperature, Max 105 °C
Operating Temperature, Min -55 °C
Output Signal Voltage
Measurement Pressure, Min 0 psi
Measurement Pressure Type Gauge
Process Connection Size 1/8 in
Process Connection Type NPT Male
Proof Pressure 2x Full Scale
Proof Pressure Note 2X FS; 1.5x over 200 psi
Series ID PX176
Span Setting Adjustable Range 5 ± 0.1 Vdc
Supply Power Note 9 to 20 Vdc at 15 mA (polarity protection)
Supply Voltage 9 to 20 Vdc
Thermal Effect on Span error, Max ± 1% gage
Weight 113 g
Zero/Balance Error ± 1% FS

Supported Applications

The Omega PX176 series consists of amplified voltage output pressure transducers designed for absolute and sealed gauge pressure measurement. These units feature a waterproof case intended for use in harsh environments where moisture protection is required.

Operating Conditions & Performance

PX176 transducers utilize piezoresistive sensing on a bending beam architecture to deliver an accuracy of ±1.0% full scale, which includes linearity (±0.5% FS) and hysteresis (±0.25% FS). The operating temperature range spans -55 to 105°C (-67 to 221°F), with a compensated temperature range of 0 to 85°C (32 to 185°F).

Pressure ratings vary by full scale: proof pressure is rated at 2x full scale, increasing to 1.5x over 200 psi. Burst pressure limits are defined as 20x full scale generally; for ranges between 50 and 200 psi, the limit is 10x full scale, while ranges of 500 psi and up have a burst rating of 5x full scale.

Performance Specifications

Output Signal: 1 to 6 Vdc (Zero Balance: ±1% FS; Span Tolerance: 5 ±0.1 Vdc)
Excitation Voltage: 9 to 20 Vdc at 15 mA with polarity protection
Input Resistance: 2 MΩ at 25 Vdc
Response Time: 50 Hz
Thermal Effects: Zero and Sensitivity effects are ±0.02% rdg/°C (±0.01% rdg/°F)

Configuration Options

The series supports a broad envelope of pressure ranges for both absolute (psia) and sealed gauge (psis) applications, alongside metric bar options.

Available Pressure Ranges

Absolute (psia): 0 to 15 psia through 0 to 200 psia
Sealed Gauge (psis): 0 to 100 psis, 0 to 200 psis, 0 to 500 psis, 0 to 1000 psis, and 0 to 3000 psis
Metric (bar): Ranges include 0-1.0 bar through 0-207 bar equivalents

Housing & Connections

Process Connection: Standard 1/8-27 NPT; metric thread adaptors are available.
Wetted Materials: Brazed assembly of 300 Series SS (silver, copper, nickel, cadmium brazed).
Housing Material: 300 Series SS with a waterproof case design.
Electrical Connection: Cable style featuring 900 mm (36") 3-lead shielded PVC pigtail leads.

Key Product Differences

The PX176 series is distinguished by its voltage output configuration and waterproof housing. Model numbers follow the format PX176-<RANGE>5V, where the range code indicates pressure type (A for absolute, S for sealed) and magnitude.