Zener Safety Barrier|DFA－3100-price∣specification∣theory∣model∣selection∣file- 其它|其它|Zener Safety Barrier

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Home> unit meter >> barrier >> DFA－3100Zener Safety Barrier

Product number:MC-000467001342
Product name:Zener Safety Barrier
Product Type:DFA－3100
Product nameplate:SAIC
Project Category:unit meter >> barrier >>
Manufacturer:Shanghai Automation Instrumentation Co., Ltd.
Sales unit: Shanghai Automation Instrumentation Marketing Center
Information download:Click to enter the download page

Introduction
Specifications

DFA-3□□□ zener safety barrier is an auxiliary unit of DDZ-III electric unit combination instrument.

Safety Barrier is key equipment for intrinsically safe explosion-proof instrument. In normal state, the safety barrier does not affect the normal operation of the system; when there is fault, safety barrier will limit voltage and current to limit electric energy within the limits of ignition and ensure the security. It is widely used in petroleum, chemical industry, light industry and other explosive flammable place.

Features

High Explosion-proof grade

High accuracy

Small size

Easy to install

Double-based components circuit, high reliability

Max voltage: VM：AC/DC 220V

Rated voltage：DC 24（+10～-5）%V

Rated Current ID：DC4～20mA

Inner Resistance：（DC 20mA）DFA-3100≤190Ω DFA-3300≤150Ω

accuracy：DFA-3100 0.2% DFA-3300 0.5%

limiting voltage：Vk：＜30V