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March  29 , 2024  Friday
Home> unit meter >> barrier >> SFA-1514Isolated Safety Barrier
  • Product number:MC-000467001389
  • Product name:Isolated Safety Barrier
  • Product Type:SFA-1514
  • 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
SFA-1□□4 isolated safety barrier is a type of DDZ-S instrument. In normal state, the safety barrier does not affect the normal operation of the system. When there is fault, the safety barrier will limit voltage and current and restrict electric energy within limits to ensure safety. It is widely used in petroleum, chemical industry, light industry and other inflammable and explosive places. It has the following characteristics:
Detected terminal barrier is used with two-wire transmitter and supply power for it. It can restrict dangerous energy enter into dangerous place. Isolated safety barrier can convert 4~20mADC signal from transmitter to isolated 4~20mADC signal output and some models support HART communication.
The operated terminal safety barrier is used with actuator. It is not only restricting dangerous energy enter into dangerous place but also isolating signal.
To compare with zener safety barrier, isolated safety barrier is more complex on structure but it has the function of isolating signal so it is easier to be accepted by user.
accuracy:detected terminal:0.2% operated terminal: 0.2%
Max. allowable voltage Vm: AC/DC 220V
Rated voltage VD:DC 24+10-5%V
Rated current ID:DC 4~20mA
Output load range:Detected terminal ≤300Ω
Operated terminal ≤750Ω
Limit voltage VK:<30V
Limit current IK:<30mA
Explosion-proof grade:(ia)ⅡCT6
Ambient temperature:5~40℃
RH: 5%~85%
Working frequency <55Hz, amplitude <0.075mm
External magnetic field <400A/m
Without corrosive media which impact Chromium-nickel-plating non-ferrous metals and alloys in ambient.
Model mark
S
F
A
4
DDZ-S series
Auxiliary
unit
Safety
barrier
1)transmitter
Isolated-type
2)contact-type
3) nezer-type
1)single detected terminal
2)dual detected terminal
3)single operated terminal
4)dual operated terminal
5)detected and operated terminal
0. no communication
1)HART
Rack-mounted
DC 24V