Pressure Transmitters

Introduction to Transducers

Pressure and temperature transducers are high-tech measuring instruments that play a key role in modern industrial processes. These devices convert physical parameters of the working environment into standardized electrical signals, enabling:

• Continuous monitoring of technological parameters
• Automatic regulation of production cycles
• Remote equipment control
• Data collection for analytics and forecasting systems

In the industrial sector of Saint Petersburg, such transducers are used in various industries:

1. Energy complex (CHP plants, GRES, nuclear stations)
2. Oil and gas industry (main pipelines, refineries)
3. Chemical production (reactor units, storage systems)
4. Housing and communal services (heat networks, water supply systems)
5. Machine-building enterprises (test benches, hydraulic systems)

Technical Aspects of Transducer Operation

1. Structural Features of Pressure Transducers

Modern pressure sensors include several key components:

• Measuring diaphragm (made of stainless steel, ceramics, or special alloys)
• Sensitive element (piezoelectric, strain gauge, or capacitive)
• Electronic signal processing module
• Protective housing (usually made of 316L stainless steel)
• Processor unit (in digital models)

The operating principle is based on converting mechanical impact into an electrical signal. For example, in strain gauge sensors, pressure causes deformation of the diaphragm, leading to a change in the resistance of strain gauges.

2. Features of Temperature Transducers

Temperature sensors use various physical principles:

• Thermoelectric effect (in thermocouples)
• Change in electrical resistance (in resistance thermometers)
• Semiconductor properties (in thermistors)
• Optical methods (in fiber-optic sensors)

Each type has specific characteristics regarding accuracy, measurement range, and stability of readings.

Classification and Types of Transducers

1. Types of Pressure Transducers

By Type of Measured Pressure

By Operating Principle

• Piezo-resistive — the most common type
• Capacitive — high accuracy, stability
• Resonant — precision measurements
• Ionization — for vacuum systems

2. Types of Temperature Transducers

• Thermocouples (types K, J, S, R) — wide temperature range
• Resistance thermometers (Pt100, Pt1000) — high accuracy
• Thermistors — high sensitivity
• Infrared pyrometers — non-contact measurements

Criteria for Selecting Industrial Transducers

1. Operating Conditions

• Operating pressure/temperature range
• Characteristics of the measured medium (aggressiveness, viscosity)
• External influences (vibration, electromagnetic interference)

2. Measurement Requirements

• Required accuracy (instrument class)
• Long-term stability of readings
• Response speed (response time)

3. Structural Features

• Materials of measuring elements
• Type of electrical connection
• Explosion protection availability (Ex version)
• Degree of enclosure protection (IP)

4. Integration into Control System

• Type of output signal (analog/digital)
• Supported communication protocols
• Compatibility with ACS TP

Modern Technologies in Transducers

Manufacturers continuously improve their products:

• Digital intelligent sensors with self-diagnosis function
• Wireless solutions for hard-to-reach locations
• Miniature designs maintaining accuracy
• Multifunctional devices (measuring multiple parameters)
• Increased reliability (service life up to 15 years)

Overview of Pressure Transducer Manufacturers

1. KELLER

• Leader in precise and stable measurements
• Proven reliability over the years
• Wide variety of configurations

2. IZMERKON

• General industrial and high-precision solutions
• Manufacturing time from 5 days
• Long service life

Practical Aspects of Using Pressure Transducers

Installation Recommendations

• Proper placement according to technical documentation
• Use of dampers to protect against water hammer
• Use of coolers at high temperatures
• Application of protection against condensation and corrosion

Operational requirements

• Regular calibration (once every 5 years for general industrial sensors, once a year for reference transducers)
• Seal condition monitoring
• Stability of readings control

Economic aspects of selection

The cost of transducers varies depending on:

• Measurement accuracy (instrument class)
• Materials used
• Availability of additional options
• Manufacturer brand

Approximate price range:

• General industrial transducers segment: 5,000–40,000 RUB
• Mid-range class: 40,000–110,000 RUB
• Reference transducers: from 110,000 RUB

Where to buy in Saint Petersburg

The company "Izmerkon" offers a wide range of pressure transducers, which can be especially important for complex industrial tasks. Here are the main advantages of cooperating with «Izmerkon»:

• Wide product range: We offer both standard models and specialized solutions for pressure control in various media.
• Professional selection of solutions tailored to the client's tasks: Our specialists will help choose the optimal pressure transducer, taking into account accuracy requirements, measurement range, and operating conditions.
• Short delivery times: Thanks to our own warehouse in Saint Petersburg, we ensure fast delivery even for the most complex orders.
• Warranty service: All pressure transducers come with a manufacturer’s warranty, and our company provides additional technical support.
• Flexible cooperation terms: Possibility of individual parameter customization, installment payments, and other favorable conditions for corporate clients.

The company "Izmerkon" offers:

• Wide product range
• Professional solution selection tailored to your task
• Short delivery times
• Warranty service
• Flexible cooperation terms

Final recommendations for choosing pressure transducers

For optimal selection of transducers:

1. Clearly formulate technical requirements
2. Consider actual operating conditions
3. Check for necessary certifications
4. Clarify warranty service conditions

Professional specialists at "Izmerkon" are ready to assist in selecting the optimal equipment for specific production tasks. For detailed information about specifications, cost, and delivery conditions of pressure and temperature transducers in Saint Petersburg, please contact our company’s engineers.