Signal isolators improve the electrical isolation performance between input, output, and power supply. It can be widely used in self-control engineering in industries such as oil fields, petrochemicals, manufacturing, power, metallurgy, etc.
signal isolator
Technical Indicators:
System transmission accuracy: ± 0.075% × F · S
External power supply voltage: no more than 28V when unloaded, and no less than 18V when fully loaded.
Temperature drift: ± 0.01% × F · S/℃ (100ppm)
Input impedance: Current: 100 Ω
Current output allows external load impedance:
0~550 Ω when outputting 4-20mA; 0-10k Ω at 0-10mA output,
Insulation strength (between input/output/power supply):
Not less than 2000V.dc, not less than 1500V.ac
Insulation impedance (between power supply/input/output):
Not less than 100M Ω (1 minute)
Allowable atmospheric pressure at work: 80-106kPa
Allowable continuous working environment temperature: -10-+55 ℃
Allowable relative humidity at work: 10-90% RH (at 40 ℃)
Power supply: AC 95~265V
直流: DC 16~28V
Input power: 1.4~2.7W (depending on the model)
Dimensions: Width x Height x Depth (22.5 x 100 x 115mm)
signal isolator
Advantages:
In the vast majority of cases, using isolators and non isolation cards is cheaper than using isolation cards.
Compared to isolation cards, it has better performance in terms of isolation capability and electromagnetic interference resistance.
The application is flexible, and it also has model conversion and signal distribution functions, making it more convenient to use.
There are usually single channel, dual channel, one in two out and other channel forms, and the channels are independent of each other, making the configuration and daily maintenance of the system more convenient.
Description of Intelligent Isolator:
SKGL intelligent isolator is a device that converts input single or dual current or voltage signals into output isolated single or dual linear current or voltage signals, and improves the electrical isolation performance between input, output, and power supply.
Common power supply methods include independent power supply, loop power supply, and output loop power supply.
Isolator with independent power supply:
An independent DC power supply of 20-35VDC is required. The advantage of this method is high isolation transmission accuracy; The power supply, input, and output are isolated, and the multi-channel system power supply does not need to be isolated, ensuring high anti-interference performance. The input signal can be converted to other types of models.
Isolator for circuit power supply:
In practical industrial monitoring systems, the use of DCS, PLC, or other display instruments with card internal power supply is becoming increasingly widespread. Circuit powered isolators often cannot meet the high requirements for signal isolation and transmission accuracy of these cards, as well as the high requirements for distribution voltage of two-wire transmitters. Therefore, the output circuit power supply type isolator retains the performance of the independent power supply type isolator while meeting the requirements of the output circuit power supply interface.