HI2200 / HI2300 High Temperature High Precision Pressure Transducer

The HI2200 and HI2300 Series high temperature pressure transducers are engineered to deliver precise, stable pressure measurement in demanding environments where both media and ambient temperatures are elevated. Utilizing advanced Silicon-on-Sapphire (SoS) sensing technology, these transmitters provide exceptional accuracy, long-term stability, and resistance to harsh process conditions.

Designed for industrial, aerospace, energy, and test applications, the HI2200 / HI2300 series offers reliable performance at temperatures up to 200°C, making it a strong solution for environments where conventional pressure sensors may struggle to maintain accuracy and durability.

Advanced Silicon-on-Sapphire Sensor Technology

At the core of the HI2200 / HI2300 series is a Silicon-on-Sapphire (SoS) sensing element, a technology known for its superior performance in elevated temperature and high-pressure environments.

This sensor design consists of a piezoresistive silicon strain gauge circuit grown directly onto a sapphire diaphragm, forming a highly stable, single-crystal structure. The sapphire element is then molecularly bonded to a titanium alloy sub-diaphragm, providing excellent mechanical strength and corrosion resistance.

This construction offers several key advantages:

• Virtually no hysteresis

• Excellent long-term stability

• High resistance to overpressure conditions

• Superior thermal insulation properties

These features ensure that the sensor maintains accurate and repeatable measurements, even under challenging operating conditions.

Designed for Elevated Temperature Operation

The HI2200 / HI2300 pressure transducers are capable of continuous operation at temperatures up to 200°C for both media and ambient conditions. This allows them to be installed directly in elevated temperature environments without the need for cooling systems or remote mounting.

Unlike many pressure sensors that require thermal isolation, these transducers can be mounted in locations such as:

• Ovens and thermal chambers

• Engine test environments

• Elevated temperature process lines

This capability simplifies installation and reduces system complexity while maintaining measurement accuracy.

High Accuracy and Measurement Stability

The HI2200 / HI2300 series is designed to deliver precise pressure measurement across a wide range of applications. Key performance characteristics include:

• Accuracy of ≤ ±0.1% of span (BFSL)

• Fast response time of approximately 1 millisecond

• Excellent thermal stability

The HI2300 model offers additional performance benefits with full temperature compensation and a rationalized output signal, providing improved measurement consistency across varying temperature conditions.

This level of accuracy makes the sensor suitable for applications requiring tight control and high reliability.

Wide Pressure Ranges for Versatile Applications

The HI2200 / HI2300 series is available in a broad range of pressure options, allowing it to support both low-pressure and high-pressure applications:

• From vacuum and low pressure ranges

• Up to 1,500 bar (20,000 psi)

This wide measurement range enables the sensor to be used across a variety of industries and processes, from laboratory testing to heavy industrial systems.

Flexible Output Options

The HI2200 and HI2300 models offer different output configurations to meet system requirements:

• HI2200: 10–20 mV/V un-rationalized, non-compensated output

• HI2300: 10 mV/V rationalized, fully temperature-compensated output

This flexibility allows users to select the appropriate sensor based on their signal conditioning and accuracy requirements.

Both models operate with a standard supply voltage of 10 VDC (5–15 VDC range), making integration into existing systems straightforward.

Rugged Construction and Chemical Compatibility

The HI2200 / HI2300 series is built with titanium alloy wetted parts, providing excellent compatibility with a wide range of pressure media.

This material selection offers:

• Strong corrosion resistance

• Compatibility with many industrial fluids

• High mechanical strength

These characteristics make the sensor suitable for use in chemical processing, hydraulic systems, and other environments where exposure to aggressive media is common.

High Overpressure Capability

The sensor is designed to withstand significant overpressure conditions, enhancing reliability and protecting against system spikes:

• Up to 2× overpressure for lower ranges

• 1.5× for mid-range pressures

• 1.1× for the highest pressure ranges

This capability helps prevent damage and ensures continued operation in dynamic systems where pressure fluctuations may occur.

Multiple Electrical and Process Connection Options

To accommodate different installation requirements, the HI2200 / HI2300 series offers a range of electrical and mechanical connection options:

Electrical Connections

• PTFE insulated flying leads

• MIL-C-26482 bayonet connector

Both options are rated for elevated temperature operation, ensuring reliable electrical performance even in harsh environments.

Process Connections

• 1/4” BSP (G1/4) male

• 1/4” NPT male

Additional options are available upon request, allowing customization for specific system requirements.

Fast Response and Reliable Signal Output

With a response time of approximately 1 millisecond, the HI2200 / HI2300 series is capable of capturing rapid pressure changes, making it suitable for dynamic measurement applications.

The sensor also features high insulation resistance (>100 MΩ at 50 VDC), ensuring stable signal transmission and minimizing electrical interference.

Typical Applications

The HI2200 / HI2300 elevated temperature pressure transducers are used in a wide range of industries and applications, including:

• Engine and turbine testing

• Industrial process monitoring

• Hydraulic and pneumatic systems

• Thermal and environmental test chambers

• Aerospace and defense systems

Their ability to operate in elevated temperature environments while maintaining high accuracy makes them particularly valuable in applications where conventional sensors are limited.

Why Choose the HI2200 / HI2300 Series?

The HI2200 / HI2300 stands out as a high-performance pressure sensing solution due to its combination of:

• Silicon-on-Sapphire sensing technology

• Operation up to 200°C (media and ambient)

• High accuracy and stability

• Wide pressure range up to 1,500 bar

• Excellent chemical compatibility

• Flexible output and connection options

These features make it an ideal choice for engineers and system designers who require reliable pressure measurement in elevated temperature environments.

Optimize Your Pressure Measurement System

Accurate pressure measurement is critical to maintaining performance, safety, and efficiency in industrial systems. The HI2200 / HI2300 elevated temperature pressure transducer provides the durability and precision needed to operate confidently in demanding applications.

Whether used in testing environments or continuous industrial processes, this sensor delivers consistent, dependable performance where it matters most.