DCL Completes CSA Certification for Explosion-Proof Electric Actuators in North America
DCL has successfully completed the CSA certification for its explosion-proof electric actuators in North America. The certification was awarded on January 14, 2022, for the DCL-Ex series, which includes models DCL-Ex05, DCL-Ex10, DCL-Ex20, DCL-Ex40, and DCL-Ex60. CSA Certification Scope Explosion-Proof Ratings: United States: Class I Division 1, Group C and D T5/T6 Canada: Ex db IIC […]
DCL Controls to Attend the 31st China International Measurement Control and Instrumentation Exhibition (Miconex 2023)
DCL Controls will participate in the 31st China International Measurement Control and Instrumentation Exhibition (Miconex 2023), showcasing its electric actuators, electric valves, and IoT-based actuator applications. The event offers an excellent opportunity for industry experts to explore advanced solutions in automation, control, and measurement. Event Details: Date: October 23–25, 2023 Location: National Convention Center, Beijing Booth: […]
DCL Controls to Attend the Beijing International Wind Energy Conference & Exhibition (CWP 2023)
DCL Wuhan Huayi will participate in the Beijing International Wind Energy Conference & Exhibition (CWP 2023), where they will showcase their electric actuators and IoT-based actuator applications for the wind energy industry. Event Details: Date: October 17–19, 2023 Location: China International Exhibition Center (Shunyi District) Booth: E4118 This exhibition will provide an excellent platform for […]
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: […]
Sammenligning av interferensmotstand: 4-20mA VS. 2-10V
Når det gjelder elektriske aktuatorers anti-interferensytelse, er det analoge 4-20mA-signalet betydelig bedre enn det analoge 2-10V-signalet. Hvorfor er dette tilfelle? 2-10V signalanalyse Anti-interferensdiagram for 2-10V signal (DCL Huayi Intelligent Control) Som vist i diagrammet ovenfor: Når du bruker 2-10V, på grunn av den høyere inngangsmotstanden på modulen (R = 34K), [...]].
Vanlige busser for elektriske aktuatorer
Stadig flere industrielle kontrollsystemer benytter feltbusser for å styre flere sensorer og aktuatorer. Elektriske aktuatorer er en nøkkelaktuator i væskestyringsprosesser, og de brukes ofte i industrielle applikasjoner. De mest brukte bussystemene for elektriske aktuatorer omfatter Modbus, CAN, Profibus, DeviceNet, Foundation Fieldbus, HART og Ethernet. Vanlige bussystemer [...].
EN15714-2 Classification of Electric Actuator Control (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 […]
Når bør man velge en prosesstyringsaktuator?
Applikasjonsbakgrunn for prosesskontrollaktuatorer I mange prosesskontrollsystemer er det nødvendig å oppnå svært nøyaktig og konsekvent kontroll av strømningshastigheten for væsker eller gasser gjennom et automatisert kontrollsystem (PLC/DCS). På grunn av den høye presisjonen som kreves, må slike systemer ofte foreta kontinuerlige og presise små justeringer av reguleringsventiler [...].
