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China, Chinese Isoh 4-20mA-O High Isolation 4-20mA to 0-5V Isolation Signal Conditioning1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
TransmitterPressure TransmitterSignal Level Isolation0-10V Signal Isolation Module
Shenzhen Sunyuan Technology Co., Ltd.
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Product Description ISOH 4-20mA-O high isolation 4-20mA to 0-5V isolation signal conditioning Introduction:SunYuan ISOH 4-20mA-O is the highest isolation voltage 10KVAC in the industry fied, small size (16pin single-line SIP16 Pin) low cost, two-wire passive 4-20mA to voltage signal isolation converter module. The voltage signal value can be converted by sampling acquisition isolation in a two-wire passive 4-20mA current loop without a separate power supply. The IC adopts two-wire input loop power supply mode, unique high-efficiency signal loop power-taking technology and no external working power supply, which can greatly simplify the user's system design and reduce the user wiring cost. The internet of IC including a current signal modulation and demodulation circuit, a signal coupling isolation conversion circuit, a power supply inverter circuit, a subtraction circuit, a buffer processing output circuit, etc., and a small input equivalent resistance enables the IC to be used from instruments, PLCs, and sensors. The current signal is collected in the signal loop (the voltage drop is ≤10V when the input 20mA signal is reached), and the collected current signal is isolated and converted into a voltage signal. It is convenient to realize the AD acquisition and conversion of the industrial field MCU microcontroller, DCS, FCS and other control systems. It meets the needs of the user's site without the need for an external auxiliary power supply or IV conversion transmitter to achieve long-distance, distortion-free transmission of signals.Features:1. Unique high-efficiency signal loop power-taking technology, no external working power supply2. Two-wire 4-20mA standard analog input, isolation amplifier converted to Analog voltage signal such as 0 2.5V/0-3.3V/0-5V/1-5V. 3. Very low input impedance, voltage drop ≤10V when meet inputting 20mA signal.4. Accuracy level: 0.1, 0.2, 0.55. Extremely high linearity over the full range, nonlinearity error < 0.2%6. Between signal input and output: 10000VAC high isolation7. Industrial temperature range: -40 ~ +85 °C8. Small size single row SIP 16Pin, meets the UL94V-0 flame retardant packageTypical Application:1. Two-wire passive 4-20mA loop voltage sampling acquisition isolation implementation.2. Industrial field analog signal AD sampling conversion and remote transmission3. Sensor and transmitter 4-20mA signal isolation and IV conversion 4. Signal acquisition isolation and anti-interference between PLC and DCS input channels 5. Multi-channel analog acquisition ground loop isolation and interference suppression6. Reliable transmission and reception monitoring between instrumentation signals and sensors7. Analog signal data acquisition isolation and long-line distortion-free transmission 8. Power instrumentation, medical equipment monitoring isolation barrier9. DC, high voltage monitoring and isolation safety barrier for electric power and rail transitModel Selection:The Real pictures:SIP Packaging way:DIN35 Rail-mounted packaging : ISOH 4-20mA-O is often used for the isolation conversion of two-wire passive 4-20mA current to voltage signals. It has low power consumption and low heat generation (basically no temperature rise)high reliability. The internet mainly including the subtraction circuit and the amplifier buffer output circuit. These circuits bring the advantages of simplicity and reliability and also bring the limitations of use. Both the product and the 4-20 mA signal output from the sensor are isolated and transmitted from the other. From another definition it is the transmission of electric power, so there must be power loss inside. This loss is expressed in the product of the input current value and its own input voltage drop. In this case, the 4-20 mA source must have the ability to drive a 500 Ω load for the product to function properly. At present, from the practical application experience of industrial sites, most of the field instruments and sensors, PLC / DCS, etc. can meet the ability of 4-20mA signal output to drive 500Ω load.In industrial field applications, some circuits can convert the input current signal into a voltage signal using only one I/V conversion sampling resistor. This circuit is simple but not practical. First of all, when the actual meaning is zero signal, there will be a zero current flowing through the sampling resistor. If the input current is converted to the maximum 5V voltage according to the 4~20mA input current, the zero point happens to be 1V. This 1V is sufficient in the MCU resources. At that time, it can be subtracted by the microcontroller software, but the useful voltage will leave 5-1=4VDC instead of 5VDC. Since the maximum input voltage of the A/D of the MCU is the supply voltage of the MCU, this voltage is usually 5 VDC, so it is very trouble to deal with this simple input conversion circuit. In order to achieve the number of A/D conversions, the cost of the chip will increase. . A simple way to solve the above problem is to configure a subtraction and buffer processing circuit composed of an operational amplifier before the input of the single-chip microcomputer. Increasing this level of circuit can make the processing of the zero point more convenient, without consuming the internal resources of the single-chip microcomputer, especially the single-chip microcomputer. When the A/D interface is used to accept such a zero signal and the input is not zero voltage value, the resources of the A/D conversion bit number can be fully applied to the useful signal.ISOH 4-20mA-O series enables high-precision, high-linearity 10KV anti-EMC high-isolation transmission and I/V conversion between industrial field sensors and instrumentation, PLC and DCS. Products include IC PCB package and DIN35 Rail-mounted packaging, It is widely used in track voltage monitoring, generator or motor safe operation monitoring, power transmission and distribution remote monitoring, instrumentation and sensor signal transceiver, medical equipment safety barrier, industrial automation control, nuclear power equipment etc other fields.Rated Maximum Values:(Operating the products in the rated maximum value environment for long-term will affects the service life of the product. If the maximum value is exceeded, irreparable damage may be occurred.)Continuous Isolation Voltage 10000VrmsJunction Temperature ( Maximum working temperature range ) - 40 ~ +85 oCLead Temperature ( Pin highest soldering temperature / duration <10S ) +300oC/<10SOutput voltage signal minimum load 5KΩGeneral Parameters:Accuracy, linearity error level ---------- 0.1,0.2gradeBacklash ---------- < 0.5% Auxilary power supply---------- NOIsolatoin ---------- Signal input/output,two isolationWorking temperature---------- -40 ~ +85oC Insulation resistance ---------- ≥20MΩWorking humidity ---------10 ~ 60% (No condensation)Pressure resistance-10KV(50HZ / S),Leakage current 1mAStorage temperature---------- -45~ +85oC Withstand voltage--------- 10KVAC, 1.2/50us (peak)Storage humidity----------10 ~ 95% (No condensation) Technical Parameters:ParametersConditionMin valueTypic valueMax valueUnitIsolation voltage AC,50HzInsulation resistanceLeakage current60S240Vrms,50Hz 100001012‖10.5 VACΩ‖PfuATemperature driftNonlinearity ±50±0.2±100±0.5PPm/oC%FSKload capacityVout=5VDC510 KΩInput signal voltage range 92436VDCinput resistanceIin=20mA,Out=5V450500 ΩOutput signal voltage rangeRL:5KΩ0 5VDCOutput linear rangeOutput current Io 00.5 51.2VmAOutput signal rippleNo filtering 1020mVRMSFrequency response (small signal bandwidth)Vo=5V 100200HzResponse time 1020mSWorking temperature -40 85oCStorage temperature -55 105oCPin Definition and Block Diagram:Dimension and Typical application:For more information, please feel free to contact us:Other products:Commonly used two-wire passive isolation amplifier, isolation transmitter IC, Sunyuan product technical information download: 1,4-20mA (0-20mA) Current Loop Isolator IC: ISOS 4-20mA 2,4-20mA two-wire passive I/V conversion isolation transmitter IC: ISO 4-20mA-O series 3,4-20mA isolation controller (active signal PLC current loop active load) IC: ISO 4-20mA-E4,Two-wire passive sensor 4-20mA loop isolation distributor IC: ISO 4-20mA-F 5,Two-wire voltage signal power distribution isolation transmitter IC: ISO V-4-20mA Commonly used active type (external auxiliary power supply required) isolation amplifier transmitter IC, product selection application data download: 1,ISO mV series: millivolt-level analog small signal dedicated isolation amplifier IC 2, ISO EM U(A)-P-O-T Series: Zero-point, gain-adjustable analog isolation amplifier isolation transmitter3, ISO EM A(U)-P-O-S Series: Input Distribution Isolation Transmitter IC 4, ISO EM-U(A)-P-O-O Series: Analog Input Isolation Transmitter with 1 to 2 Output Low Cost Small Size IC mounted Package 5, ISO EM A-P-O Series: 0-±10V Bilateral DC (Voltage/Current) Signal Isolation Amplifier Isolation Transmitter IC 6, DIN3 ISOEM U-P-O(A-P-O) Series: Single DIN35 rail mounting packaging low cost small volume isolation transmitter7,DIN 1X2 ISOEM U(A)-P-O Series: one input and two output DIN35 rail mounting packaging isolation transmitter8,DIN 2X1 C-P-O Series: 2 input and 1 output analog average isolation transmitter 9,DIN 2X2 ISOEM U(A)-P-O Series: two in two out DIN35 rail mounting isolation transmitter10,DIN 1X3 ISOEM U(A)-P-O Series:one in three out DIN35 Rail mounting isolation transmitter 11,DIN ISO AC Series: Passive two-wire AC to DC signal isolation transmitter12,ISO EMH 4-20mA Series: High isolation barrier for track voltage monitoring 13,ISO F-P-O Series: Frequency Signal (FV/FI Conversion) Isolated Converter IC14,ISO U(A)-P-F Series: Analog Signal to Frequency Pulse Signal (V/F) Isolated Transmitter IC15,ISO EM RMS-P-O Series: Analog True RMS (RMS) Signal Isolation Transmitter Isolation Amplifier 16.Large current output type high precision signal transmitter
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