JB/T 8219—2016 Standard for Ordinary and Intelligent Electric Actuators Used in Industrial Process Control Systems
Table of Contents Preface 1 Scope 2 Normative References 3 Terms and Definitions 4 Product Classification and Basic Parameters 4.1 Product Classification 4.2 Basic Parameters 5 Basic Functions of Intelligent Actuators 5.1 Display Function 5.2 Parameter Setting Function 5.3 On-Site Configuration Function 5.4 Fault Self-Diagnosis and Alarm Function 5.5 Communication Function 5.6 Other Functions 6 […]
GB/T 3369.1—2008/IEC 60381-1:1982
The standard for the 4-20mA current signal used in electric actuators is as follows: Standard: GB/T 3369.1—2008/IEC 60381-1:1982 Title: Analogue signals for process control systems — Part 1: Direct current signals (IEC 60381-1:1982, IDT) This standard defines the specifications for analog signals, specifically for the use of direct current (DC) signals in process control systems, […]
Voltage Signal Standards for Electric Actuators – GB/T 3369.2—2008/IEC 60381-2:1978
Applicable Standards for Electric Actuator Voltage Signals (1-5V, 2-10V, 0-5V, 0-10V): Analogue Signals for Process Control Systems – Part 2: Direct Voltage Signals (GB/T 3369.2—2008/IEC 60381-2:1978)IEC 60381-2-1978, IDT Preface GB/T 3369.2—2008/IEC 60381-2:1978 – Analogue Signals for Process Control Systems – Part 2: Direct Voltage Signals The GB/T 3369 standard consists of the following two parts: […]
EN15714-2 Classificazione degli attuatori elettrici di controllo (Duty)
Control Duty Classifications: Class A: ON-OFF Type (On/Off) Function: The actuator is required to drive the valve through its entire stroke from fully open to fully closed (and vice versa). Typical Use: Applications where valves are either fully open or fully closed. Class B: Fine-Tuning/Positioning Adjustment Type Function: The actuator occasionally moves the valve to […]
Valori di protezione dell'involucro (UL, CSA, NEMA)
The protection ratings for enclosures defined by UL, CSA, and NEMA are categorized as follows. While the classifications are generally similar, there are minor differences in the details, so it is advisable to refer to the specific standards for more precise information. Type Classification Definition 1 General For indoor use, providing protection for enclosed components […]
Attuatore con grado di protezione IP da polvere e acqua
IP Protection Rating DefinitionThe IP (Ingress Protection) rating defines the protection level of a product’s enclosure against the intrusion of solid objects (such as tools, fingers, dust, etc.) and the ingress of water (from condensation, washing, immersion, etc.). The two digits following “IP” indicate the protection levels for solid objects and water intrusion. The first […]
