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Compact Monocrystalline Silicon Differential Transmitter Flow Control

HPM3136 monocrystalline silicon compact differential pressure transmitter adopts monocrystalline silicon high-stability differential pressure chip, which can achieve high-precision measurement and high overload. The product has an embedded signal processing module, which realizes the combination of static pressure and temperature compensation and can achieve high-precision measurement and maintain good long-term stability under a wide range of static pressure and temperature changes. At the same time, the product adopts a fully welded structure, and the pressure interface is a threaded connection, which can be directly installed on the measuring pipeline or connected through a pressure pipe. The product is compact and easy to install, and is widely used in differential pressure, liquid level, flow measurement and control in the fields of process control and equipment monitoring.

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Overview

The monocrystalline silicon compact differential pressure transmitter (HPM3136) is a high-performance measurement solution engineered for demanding industrial process systems. Built around a premium monocrystalline silicon high-stability differential pressure chip, this device delivers industry-leading precision and exceptional overload resistance for continuous, reliable operation in harsh industrial environments. Its embedded advanced signal processing module integrates full static pressure and temperature compensation, ensuring consistent high-accuracy measurement and outstanding long-term stability even across wide fluctuations in static pressure and ambient temperature. Featuring a fully welded structure and threaded pressure interface design, the compact differential pressure transmitter supports direct pipeline installation or pressure tube connection, with a space-saving form factor that simplifies integration into compact equipment and tight pipeline layouts. This versatile device has become a trusted choice for industrial system integrators, process control engineers, and equipment manufacturers seeking a robust, low-maintenance differential pressure measurement solution.

Compact Monocrystalline Silicon Differential Transmitter Flow Control

Key Benefits

Industry-Leading Measurement Precision & Long-Term Stability

At the core of the HPM3136 is its high-stability monocrystalline silicon sensing element, delivering an exceptional accuracy of ±0.075% FS across most standard ranges (±0.1% FS for 1kPa low range). With minimal zero and full-scale temperature drift within the -10℃ to 70℃ compensation range, this high accuracy differential pressure transmitter reduces the need for frequent calibration, cutting maintenance costs and minimizing unplanned downtime for industrial operations.

Robust Overload Protection & Durable Construction

Designed for harsh industrial conditions, the transmitter features an overload diaphragm protection system, with single-side positive overload capacity up to 16MPa and bilateral static pressure resistance up to 40MPa across most ranges. Its fully welded housing delivers IP65 ingress protection, with excellent resistance to vibration and corrosion, ensuring reliable performance in challenging process environments.

Flexible Integration & Broad Compatibility

The HPM3136 supports a standard 4~20mA DC output with HART protocol, compatible with most industrial control systems, and operates on a 12~30VDC power supply for seamless integration into existing setups. It offers multiple process connection options, including default NPT1/4 female thread, with customizable G1/4 male thread and M20×1.5 male thread to fit diverse pipeline configurations.

Comprehensive Electrical Protection

Equipped with full short-circuit protection and reverse polarity protection (no device damage during reverse connection), this industrial differential pressure transmitter minimizes the risk of electrical faults, ensuring safe, uninterrupted operation in industrial automation systems.

Industrial Applications

Process Control & Pipeline Monitoring

The HPM3136 is widely deployed in continuous process control systems across oil and gas, chemical processing, water treatment, and power generation industries, providing real-time differential pressure monitoring to maintain optimal process parameters and ensure operational safety.

Flow Measurement & Control Systems

Paired with primary flow elements such as orifice plates, Venturi tubes, and flow nozzles, this differential pressure transmitter for flow control delivers highly accurate flow rate measurement, supporting efficient process regulation and energy consumption management for industrial pipelines.

Closed Tank Liquid Level Monitoring

The device provides precise differential pressure-based liquid level measurement for closed pressure vessels and storage tanks, delivering reliable data for inventory management and process safety in chemical, petrochemical, and water treatment facilities.

Industrial Equipment Monitoring & Automation

It is an ideal solution for integrated monitoring of hydraulic systems, compressors, and industrial machinery, providing critical pressure data to support predictive maintenance and optimize equipment performance for manufacturing and industrial automation operators.

FAQ

What is the measuring range of the HPM3136 differential pressure transmitter?

The HPM3136 offers 8 standard rated ranges, spanning from 1kPa up to 10MPa, with customizable ranges available to meet specific application requirements.

What output signals does this compact differential pressure transmitter support?

The device provides a standard 4~20mA DC analog output with integrated HART digital communication protocol, enabling real-time data transmission and remote configuration for industrial control systems.

What is the operating temperature range of the HPM3136 transmitter?

It supports a medium temperature range of -40℃ to 120℃, an ambient operating temperature range of -40℃ to 80℃, and a storage temperature range of -40℃ to 80℃, adapting to diverse industrial environmental conditions.

What process connections are available for this industrial differential pressure transmitter?

The default configuration is NPT1/4 female thread, with optional G1/4 male thread, M20×1.5 male thread, and fully customized connection solutions to fit unique pipeline installation needs.


Range, overload and accuracy

Rated range

1kPa

6kPa

40kPa

100kPa

400kPa

1MPa

3MPa

10MPa

Single-side positive terminal

300kPa

16MPa

16MPa

16MPa

16MPa

16MPa

16MPa

16MPa

Single-side negative terminal

150kPa

16MPa

16MPa

16MPa

16MPa

16MPa

16MPa

16MPa

Double-side static pressure

5MPa

25MPa

25MPa

25MPa

25MPa

40MPa

40MPa

40MPa

Accuracy

0.1%

0.075%

0.075%

0.075%

0.075%

0.075%

0.075%

0.075%

Measuring Medium

Various liquids and gases compatible with contact materials

Output Signal

4~20mADC+HART

Power Supply

12~30VDC

Temperature compensation range

-10~70℃

Temperature Coefficient of Zero

±0.2%FS(Within temperature compensation range, 1kPa)

±0.1%FS(Within temperature compensation range, other ranges)

Temperature Coefficient of Full Scale

±0.2%FS(Within temperature compensation range, 1kPa)

±0.1%FS(Within temperature compensation range, other ranges)

Measuring Medium Temperature

-40~120℃

Ambient Temperature

-40~80℃

Storage Temperature

-40~80℃

Protection Grade

IP65

Short circuit protection

With

Reverse polarity protection

No damage, the circuit does not work

Process Connection

NPT1/4 female thread (default), G1/4 male thread, M20×1.5 male thread, other customized

Insulation resistance

>200MΩ,500VDC

Dielectric strength

<2mA 500VAC(Apply 500VAC 50Hz test voltage, no breakdown or arcing for 1 minute)



Compact Monocrystalline Silicon Differential Transmitter Flow Control


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