4-20mA Differential Pressure Transmitters Honeywell SmartLine Series STD700

4-20mA Differential Pressure Transmitters Honeywell SmartLine Series STD700

Product description:

The Honeywell SmartLine Series STD700 Differential Pressure Transmitter is a high-performance instrument designed for precise measurement of pressure differences in industrial processes. Featuring a robust stainless-steel construction and advanced digital electronics, it delivers reliable 4–20mA output signals for seamless integration into control systems. With its modular design, intuitive interface, and proven accuracy, the STD700 ensures optimal monitoring of flow, level, and pressure, helping industries achieve greater efficiency, safety, and productivity.

Applications of Differential Pressure Transmitters

1. Flow Measurement By detecting the pressure drop across an orifice plate, venturi tube, or flow nozzle, differential pressure transmitters provide accurate flow rates for gases, liquids, and steam in pipelines.
2. Level Measurement In pressurized or sealed tanks, the transmitter measures the pressure difference between the liquid column and the reference side, ensuring precise level monitoring even under varying process conditions.
3. Filter Monitoring Differential pressure transmitters track the pressure drop across filters and strainers, helping operators identify clogging or fouling early to maintain efficiency and reduce downtime.
4. Pump Protection Monitoring suction and discharge pressure differences allow operators to detect cavitation, blockages, or abnormal pump performance, safeguarding equipment and extending service life.
5. Energy & Utility Systems Widely applied in steam distribution, HVAC, and boiler systems to optimize energy usage and maintain safe operating conditions.

FAQ – Honeywell SmartLine Series STD700 Differential Pressure Transmitter

Q1: What is the Honeywell SmartLine STD700 used for?
A: It is designed to measure differential pressure in industrial processes, enabling accurate monitoring of flow, level, and pressure in pipelines, tanks, and energy systems.

Q2: What is the output signal range?
A: The STD700 provides a standard 4–20mA analog output, with digital communication options such as HART, Foundation Fieldbus, and Profibus.

Q3: How accurate is the STD700?
A: It offers high accuracy up to ±0.05% of span, with advanced compensation for static pressure and temperature effects.

Q4: What industries typically use this transmitter?
A: Common applications include oil & gas, chemical processing, power generation, water treatment, and HVAC/utility systems.

Q5: What are the key advantages compared to other transmitters?
A: Modular design, robust stainless-steel construction, advanced diagnostics, and long-term stability (±0.02% per year).

Q6: Can the STD700 be integrated into existing control systems?
A: Yes. Its communication protocols and 4–20mA output make it compatible with most modern and legacy process control systems.

Q7: How does it improve safety and efficiency?
A: By providing precise, stable measurements, it helps operators detect abnormal conditions early, optimize process performance, and reduce downtime.