描述
GE 8920-PS-DC是通用电气（GE）推出的一款本质安全型模块电源，专为工业自动化系统设计，兼具高可靠性、宽电压兼容性和安全防护功能。以下是其核心功能、技术参数及应用场景的综合分析：
1.产品概述
类型：本质安全型直流电源模块，适用于危险环境（如爆炸性气体或粉尘区域）。
核心作用：为GE IS（本质安全）模块及配套设备提供稳定直流电（24V DC），并支持安全信号的传输与控制。
认证：符合国际本质安全标准（如IECEx、ATEX），确保在危险环境中安全运行。
2.核心功能
电源输出：
输入电压范围宽广（18.5至36V DC），适应复杂工业环境供电需求。
输出电流最大5A，支持冗余配置以提升系统可用性。
安全防护：
集成过载、短路保护功能，防止设备因异常电流损坏。
本质安全设计，输出端口可直接连接传感器、执行器等设备，避免火花或电弧引发危险。
通信与控制：
支持S2系统通信配置，可通过串行接口（如RS-485）实现远程监控与数据传输。
S3设置页面允许用户自定义数字输入功能，如分配继电器控制或通用开关逻辑。
工业适应性：
工作温度范围-5℃至60℃，防护等级IP20，适用于恶劣环境。
紧凑型设计（尺寸：84x160x110mm），节省安装空间。
3.技术参数
电压：输入18.5-36V DC，输出24V DC（本质安全型）。
功率：最大输出功率120W，效率≥90%。
接口：支持USB、HDMI、RS-485等工业接口，兼容多种设备连接需求。
认证：UL、IECEx、ATEX认证，符合工业安全标准。
4.应用场景
石油化工：为炼油、化工生产中的本质安全传感器（如温度、压力变送器）供电，避免爆炸风险。
煤矿与天然气行业：监控瓦斯浓度、气体泄漏，保障人员与设备安全。
制药与食品加工：在易燃易爆区域实现自动化控制，符合GMP等规范。
工业自动化：集成到GE PAC8000安全系统，支持冗余控制与紧急停机功能。
8920-PS-DC
8920-PS-DC
GE 8920-PS-DC is an intrinsically safe power module launched by General Electric(GE).It is designed for industrial automation systems and has high reliability,wide voltage compatibility and safety protection functions.The following is a comprehensive analysis of its core functions,technical parameters and application scenarios:
1.Product Overview
Type:Intrinsically safe DC power module,suitable for hazardous environments(such as explosive gas or dust areas).
Core function:Provide stable DC power(24V DC)for GE IS(intrinsically safe)modules and supporting equipment,and support the transmission and control of safety signals.
Certification:Comply with international intrinsic safety standards(such as IECEx,ATEX)to ensure safe operation in hazardous environments.
2.Core functions
Power output:
Wide input voltage range(18.5 to 36V DC)to meet the power supply needs of complex industrial environments.
The maximum output current is 5A,and redundant configuration is supported to improve system availability.
Safety protection:
Integrated overload and short-circuit protection functions to prevent equipment from being damaged by abnormal current.
Intrinsically safe design,the output port can be directly connected to sensors,actuators and other devices to avoid sparks or arcs.
Communication and control:
Support S2 system communication configuration,remote monitoring and data transmission can be achieved through serial interfaces(such as RS-485).
The S3 setting page allows users to customize digital input functions,such as assigning relay control or general switch logic.
Industrial adaptability:
The operating temperature range is-5℃to 60℃,and the protection level is IP20,which is suitable for harsh environments.
Compact design(size:84x160x110mm)saves installation space.
3.Technical parameters
Voltage:input 18.5-36V DC,output 24V DC(intrinsically safe).
Power:Maximum output power 120W,efficiency≥90%.
Interface:Supports industrial interfaces such as USB,HDMI,RS-485,and is compatible with a variety of device connection requirements.
Certification:UL,IECEx,ATEX certification,in line with industrial safety standards.
4.Application scenarios
Petrochemical:Power intrinsically safe sensors(such as temperature and pressure transmitters)in oil refining and chemical production to avoid explosion risks.
Coal mining and natural gas industry:Monitor gas concentration and gas leakage to ensure the safety of personnel and equipment.
Pharmaceutical and food processing:Realize automated control in flammable and explosive areas in compliance with GMP and other regulations.
Industrial automation:Integrate into GE PAC8000 safety system to support redundant control and emergency shutdown functions.
