Pressure Transmitter

1. Purpose This guide is designed to standardize the installation, commissioning, maintenance, and troubleshooting of pressure transmitters, ensuring their reliable operation and accurate measurement. 2. Scope This guide applies to the operation of specific models of pressure transmitters under various industrial conditions. Applicable models and environments should be confirmed prior to use. 3. Preparation Before […]

1. Coordinate with the Process Department Always establish contact with the relevant process department and obtain permission before beginning maintenance work. 2. Risk Assessment Conduct a thorough risk analysis, including consideration of the medium, pressure, and temperature. Wear appropriate protective gear and, if necessary, use explosion-proof tools. It’s recommended to work in pairs to ensure

In high-temperature steam or thermal fluid systems, pressure measurement presents unique challenges. One essential accessory that ensures safe and accurate operation is the condensate loop, also known as a siphon tube, cooling loop, or pigtail. This simple yet crucial U-shaped or coiled pipe is installed between the pressure gauge and the process connection point. Here’s

In the demanding world of mining, hydraulic support control systems stand as pivotal equipment for production. These systems, equipped with microcontrollers, pressure transmitters, and other electronic devices, along with hydraulic circuit control components, automate the operations of the hydraulic support framework as needed. Among these components, pressure transmitters play a crucial role by monitoring the

Introduction Process control instruments consist of three primary hardware components: the measurement and transmission unit, the actuator, and the controller. The measurement and transmission unit, commonly known as the transmitter, serves as the link between the sensor and the control system. In some cases, the transmitter and the sensor are integrated into a single device.

In industrial settings, it is often necessary to measure various non-electrical physical quantities, such as pressure, liquid level, temperature, differential pressure, humidity, soil moisture, and more. To transmit these physical quantities to a control room or display device, which could be hundreds of meters away, they need to be converted into standard analog electrical signals.

A pressure transmitter is an instrument that converts pressure into a 20-100 kPa pneumatic signal or a 4-20 mA current signal. Pressure transmitters are categorized into pneumatic and electric types and are widely used in industries such as refining, chemical processing, metallurgy, and pharmaceuticals. On-site calibration of pressure transmitters is a common practice. 1. Tools

Differential pressure transmitters are categorized into pneumatic and electric types. They are widely used in industries such as refining, chemical processing, and metallurgy. These transmitters are often paired with throttling devices to measure flow, and sometimes are used to measure liquid levels or other parameters. Many differential pressure transmitters operate directly on-site, where most calibrations

Introduction In industrial applications, selecting the right pressure transmitter requires careful consideration of multiple critical specifications and parameters. Choosing the appropriate device ensures accurate measurements, long-term reliability, and compatibility with the operating environment. This article provides a detailed guide on the general specifications and selection criteria for pressure transmitters, along with application scenarios and selection

In the process of selecting and using transmitters, the signal output and wiring method are crucial considerations. The terms “two-wire,” “three-wire,” and “four-wire” refer to transmitters with various direct current (DC) signal outputs. The issue of how many wires a transmitter uses fundamentally stems from differences in working principles and structure, not merely the form