0-10V/4-20mA Analog Signal Photo-Electric Isolated Transmitter Amplifier: ISO U(A)-P-O Series
SunYuan ISO series analog photoelectric isolation amplifier transmitter is a hybrid integrated circuit that isolates and amplifies analog signals, converts and transmits them into proportional analog outputs. The IC integrates a multi-isolated DC/DC converter power supply and a set of opto-coupled analog signal isolation transmitter circuits on the same chip. The wide creepage distance between the input and output sides and the internal isolation measures enable the chip to realize 3KVDC triple isolation of signal input/output/auxiliary power supply.
ISO series analog photoelectric isolation amplifier transmitter adopts the low-cost program of linear photoelectric coupling, which is mainly used in the occasions with special requirements for EMC (electromagnetic interference).The zero point of IC and gain, fullness can be adjusted and calibrated by the external multi-turn potentiometer, which is convenient for the industrial site to be adjusted and calibrated according to the working and running status of the instrument and equipment. The products are widely used in power operation safety monitoring, PLC, DCS, FCS, frequency converter, instrumentation, medical equipment, industrial automation and other industries that require power isolation collection, measurement and control.
ISO series analog photoelectric isolation amplifier products use DC signal analog photoelectric coupling transmission technology, rather than ISO EM series analog magnetic isolation transmitter products used signal modulation demodulation carrier technology, so photoelectric isolation type products and magnetic isolation type compared with a strong resistance to EMC electromagnetic interference and high-frequency signal space interference characteristics.
Product Selection Example
Example 1: Input signal: 0-5V; Auxiliary power supply: 24VDC; Output signal: 4-20mA
Product Model: ISO U1-P1-O1
Example 2: Input signal: 4-20mA; Auxiliary power supply: 24VDC; Output signal: 4-20mA
Product Model: ISO A4-P1-O1
*1Remarks: When the output value of the ISO U(A)-P-O module is a voltage signal, select a 10KΩ multi-turn potentiometer for gain adjustment. When the output value of ISO U(A)-P-O module is current signal, select 50KΩ multi-turn potentiometer for gain adjustment. (See product technical data sheet).
*2 Remarks: When the input is 0-xV and the output is 4-20mA analog current signal, both gain adjustment and zero adjustment multi-turn potentiometers must be connected externally.
With ISO U(A)-P-O modules, there is no external zero adjustment function when the input and output signals are the same 0-xV/0-xmA (zero-to-zero) parameters.
*3 Remarks: Users with special requirements for the output analog signal load capacity can be customized. Or select 0-1V(max 1A),0-5V(max 500mA) large current output of ISO series linear regulation control isolation amplifier products ().
ISO Series Linear Regulation Control Isolation Amplifiers with Current Output (http://www.sun-yuan.com/products/html/PDetail_43.html)
*4 Remarks: For current output type products, if the output terminal is not equipped with a zero adjustment terminal (8 or 11 pins), it means that the product can achieve the required accuracy without zero adjustment.
If the user needs to adjust the zero of the product, please use our products to adjust the zero of the product. If you need to adjust the zero of the product, please use the ISO mV series products produced by our company.
ISO mV Series Small Signal Isolation Amplifier Datasheet http://www.sun-yuan.com/products/html/PDetail_71.html
*5Remarks: Because the input impedance of the voltage input type (ISO U-P-O) is very high, the output will be maximized when the input is open during use.
To prevent accidents in the field, users are requested to connect a 1MΩ resistor and a 0.1UF capacitor in parallel with the inputs (pins 1 and 2) to minimize the output value of 0 when the inputs are open during operation.
