Pt100 Temperature measurement to frequency signal isolation transmitter

SunYuan ISO Z-W-P-F series isolation transmitter IC is a digital pulse frequency signal hybrid integrated circuit that converts the Pt100/Cu50 thermal resistance sensor analog signal into a digital pulse frequency signal that is linearly proportional to the temperature change. The IC converts the thermal resistance signal into a unit pulse frequency signal and then isolates the output, which can significantly enhance the signal anti-interference ability and is advantageous for long-distance distortion-free transmission. The product can complete the AD conversion and the radio frequency signal modulation wireless remote transmission through connected to the counter of the single-chip microcomputer, and also can be combined with the optical transceiver module to carry out the optical fiber remote transmission.
The module integrates high-efficiency DC-DC, it can generate two sets of isolated power supplies to the internal input end of the thermal resistance long-line compensation circuit, linearization processing circuit, voltage amplification adjustment circuit, precision voltage frequency conversion circuit, frequency division circuit, Isolation anti-interference suppression circuit power supply and output output circuit power supply. It is especially suitable for the isolation and conversion of the thermal resistance signal into digital pulse frequency signal, temperature signal transmission and distortion-free remote transmission, temperature signal acquisition and isolation of industrial field PLC or DCS system. The internal SMD process structure and new technology isolation measures enable the device to achieve: operating power / signal input / output 3000VDC three isolation, and can meet the industrial requirements of wide temperature, humidity, vibration, the harsh working environment.   
 
ISO Z-W-P-F series temperature signal isolation amplifier is very convenient to use. Users only need external zero point and full potentiometer to calibrate to realize the isolation and transmission of Pt100 thermal resistance sensor signal into unit pulse frequency signal. The product can be customized according to the user's industrial field custom parameter requirements. The installation method is standard SIP 16Pin PCB board soldering installation or standard DIN 35 rail mounting. It is especially suitable for occasions such as frequency modulation and phase modulation, AD conversion, GPRS/GMS wireless data transmission, digital thermometer, data measuring instrument, etc., which need to realize Pt100 thermal resistance signal isolation transmission in instrumentation and industrial intelligent remote telemetry remote control equipment. It can realize the function of long-distance transmission of industrial field temperature control signals 1-input&1-output, 2-input&2-output. Products are widely used in metallurgical mining, petrochemical, power equipment, medical equipment, industrial automation, new energy facilities and military research and other fields, users can choose the right products according to the needs of the site.
 
Picture１　ISO Z-W-P-F Series Isolation Transmitter Block Diagram
Product maximum rating（Operate in the maximum rated environment for long-term which will be effects the service life of the product. Exceeding the maximum value may cause irreparable damage.）

 
Model nunber and definition                                   
 
Product selection example:
Example 1: Input: Pt100, temperature range -20-100 °C; output: 0-5KHz (5V voltage pulse); Auxiliary power supply: 24V; IC package
     Product model: ISO Z1-W1-P1-F1
 
Example 2: Input: Cu50, temperature range 0-100 °C; output: 0-5KHz (5V voltage pulse); auxiliary power supply: 12V; IC package
    Product model: ISO Z4-W2-P2-F1
 
Example 3: Input: Pt100, temperature range 0-150 °C; Output: 0-10KHz (5V voltage pulse); Auxiliary power supply: 24V.  1-input &1-output, rail-mounted packaging
     Product model: DIN 1X1 ISO Z1-W3-P1-F2
 
Example 4: Input: Pt100, temperature range 0-200 °C; output: 0-10KHz (open collector); auxiliary power supply: 5V; IC package
    Product model: ISO Z1-W4-P3-F5
 
Example 5: Input: Pt100, temperature range 0-150 ° C; Output: 0-5 KHz (collector open circuit); Auxiliary power supply: 24V.  2-input&2-output rail-mounted packaging
    Product model: DIN 2X2 ISO Z1-W3-P1-F4
Technical Parameters                         

Pin function description

 

Remarks: 1. When inputting two-wire thermal resistance, short-circuit the 2nd and 3rd pins (the thermal resistance input B terminal); when inputting the 4-wire thermal resistance, short-circuit the 1 pin and any one of the thermal resistance A terminals.
2. Thermal resistance disconnection detection: a. Output maximum value: Wire disconnection connected to 1 or 3 feet; b. Output minimum value: Wire disconnection connected to 2 feet.
Product calibration method
Calibration equipment: one resistor box with a precision of 0.01 ohm, one DC power supply, one frequency meter or one with a frequency measurement function of more than 4 and a half multimeters.
 
Calibration steps:
1. Connect the product according to the application diagram, or install the product on the designed circuit board.
2. Connect the power supply according to the value of the auxiliary power supply; install the adjustment potentiometer; the output is connected to the frequency meter or multimeter.
3. According to the input temperature range, check the index table to obtain the corresponding resistance value range Rlow~Rhigh.
4. Turn on the power and turn it on for 15 minutes.
5. Adjust the resistance of the resistor box to the value equal to Rlow, and adjust the zero potentiometer so that the output corresponds to the corresponding output value of zero point (for example, 1KHz).
6. Adjust the resistance of the resistor box to a value equal to Rhigh, and adjust the amplitude potentiometer so that the output is the corresponding output value of full scale (for example, 5KHz).
7. Repeat steps 5 and 6 several times to improve the output accuracy.
8. Calibration is complete.
 
Typical application
Application 1: Typical application of voltage pulse output

 
Application 2: Typical application of open collector output

                                          
Product shape and PCB layout reference size (standard SIP16 pin)
 
 
 
DIN35 rail mounting type: DIN 1X1 (1-input&1-output) / DIN 2X2 (2-input&2-output) Typical application
 
SunYuan  DIN□X□ ISO Z-W-P-F series The rail type thermal resistance signal frequency signal isolation transmitter is mainly composed of ISO-Z-W-P-F series modules of IC package. The adjustable resistors installed on the peripheral PCB board are used to adjust or correct the zero point precision and full scale output precision. PCB board size: (length * width) 79.5 * 32.5 mm. (The rail-mounted products have been tested and corrected before leaving the factory, and can be used directly by the user)
 
 
DIN35 rail-mounted type product size and pin function description (* product brand name printed on the housing)

 
 

SY series low cost, small size and simple isolation amplifier isolation transmitter is a series of economical products by Shunyuan developed according to the user's different technical requirements for isolation, amplification and conversion of analog signals in different environments of industrial sites. In the project design, the user can isolate, amplify, convert and transmit to the analog quantity,and make judgments for whether need to full isolation to signal input and output between with working power supply,two isolation or non-isolated of the field analyses during the process of transimtter. according to the characteristics of the live signal to choice different specifications, then reduce manufacturing costs greatly , reduce device size and optimize system architectures under the premise of meeting the technical requirements.
Low cost, small size, simple and applicable isolation amplifier isolation transmitter: SY series
1. VI/IV conversion low cost small volume isolation amplifier. New product promotion price:  usd$5.6 / PCS
Product introduction: SY U-P-O series voltage signal and SY A-P-O series current signal isolation amplifier, it is use small size (SIP 8Pin), low cost design. mainly used to solve these conversion problem between non-standard analog quantity and standard analog signal ,such as the problem between sensor and instrument, PLC and DCS: 0.4-2V/0-5V/1-5V/0-10V/0-20mA/4-20mA etc. which have high precision and high linearity features, The 2000VDC isolation voltage between the working power supply and signal channel can control the interference of surge and common mode harmonics in power supply systems. The product is very convenient to use, free of zero point and gain adjustment. It can achieve the simple conversion and amplification function of the industrial field analog signal without external adjustment potentiometer and other components.
Product information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=23&id=89



2. The low cost and small size of displacement potentiometer resistance signal transmitter. New product promotion price:  usd$5.6 / PCS
Product introduction: SY R-P-O series displacement transducer is a low cost, small volume hybrid integrated circuit that converts the displacement resistance signal into a linear standard signal according to the size of change. The transmitter use the input filter, input protection circuit, high-precision voltage-stabilized reference IC power supply circuit, amplification conversion circuit, zero-degree full-scale adjustment circuit and other conversion circuits. The external power supply can be powered by a switching power supply or a linear regulated power supply. it has high precision and linearity (better than 0.05F.S), and commonly used in precision measuring instruments such as built-in electronic rulers and angular displacement signal transmitters.
 
Product information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=23&id=35

3.Two-wire 4-20mA differential signal acquisition conditioner. New product promotion price: usd$7.1/ PCS
Product introduction: SY C-A-P-O series is a two-wire 4-20mA differential signal acquisition and conditioning chip. The internal of IC contains differential signal acquisition, conditioning, and conversion circuitry, The standard input equivalent resistance allows the IC to collect differential signals from the sensor loop to meet the needs of the user's microcontroller to receive signals. (±9 ~ ±15V) Ultra-wide range power supply or single power supply mode, can achieve the required accuracy requirements of the site without any adjustment loop, and realize the transmission and transmission function of the two-wire 4-20mA signal.  
Product information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=23&id=45

4. Two-wire low cost 4-20mA loop feed acquisition conditioner. New product promotion price: usd$7.1 / PCS
Product information：SY 4-20mA-P is a non-isolated two-wire 4-20mA analog signal acquisition conditioner chip with low cost design.The input active 4-20mA current signal can be converted into a passive control signal output to control the two-wire power supply (feed mode) 4-20mA current loop. and acheive the matching of sensor signal acquisition and active load of analog input and output interface, and effectively solved the problem of collecting the active 4-20 mA current signal and the power supply conflict of the two-wire current loop power supply loop receiving port.
The output mode is designed for the two-wire power supply circuit in which the 24VDC and the sampling resistor (two-wire instrument) are connected in series. It is match with these analog input port which commonly used in industrial sites such as the analog input interface board (host computer), PLC, DCS or other instrument.
Product information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=25&id=109


5.Two-wire passive I/V converter. New product promotion price: usd$8.5 / PCS
Product information：SY 4-20mA-O is a low cost, small size, two-wire passive 4-20mA transform to voltage signal conversion IC that can converts an active 4-20mA signal into a voltage signal output. The IC use two-wire input loop power supply way, which has a unique high-efficiency signal loop stealing technology and needn’t an external working power supply. make the user design more simplify and reduce user wiring costs.The small input equivalent resistance can make IC collect the current signal from the sensor signal output loop, and can achieve a voltage drop of ≤6V when the input 20mA signal is reached , so that can meet the needs of the user to achieve long distance, distortion free transmission conversion of the sensor signal in the no-power field environment.
 

Product introduction:
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=23&id=42

6．Low cost speed signal acquisition transmitter IC. New product promotion price: usd$8.8 / PCS

Product introduction：SY S-P-O series low cost speed signal acquisition transmitter is a mixed integrated circuit that amplifies the speed sensor signal, sine wave, sawtooth wave signal or tiny pulse signal into a square wave signal which is completely consistent with the input frequency.
It is suitable for the low cost design solutions that convert amplitude, sine wave, etc. into a standard square wave pulse signal. And it is widely used in the detection of motor running speed and the detection of rotating systems such as automotive ABS brakes.
 
Product information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=23&id=28

  
              


      ISOS 4-20mA  is the smallest in the industry' (7 pin single in line SIP7 Pin) low cost two wire passive current loop 4-20mA isolation IC developed by Shunyuan. This new product is a pre 4-20mA current signal input, and a post analog signal isolation mixed integrated circuit with a 4-20mA output. The internal of IC including a current signal modulation and demodulation circuit, a signal coupling isolation conversion circuit, and so on. The product use the unique Shunyuan technology invention technology of magnetoelectric coupling isolation and high-efficiency loop stealing, which effectively solves the problem of dependence of current signal isolation on the power supply. and achieved high-precision, high-linearity isolated transmission of 4-20mA (0-20mA) signal between industrial field sensors and instrumentation, PLC and DCS. The 7-pin single in line and ultra small (19.5X12.5X9.8mm) standard PCB board design can be embedded in the instrument panel, sensor, PLC and other internal of operation control board, which simplifies the choice of the user system design and reduces the volume and wiring costs.

Detailed technical information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=25&id=52

2.Two wire passive loop 4-20mA signal isolation distributor:
     ISOS 4-20mA-F Series Mini Low Cost 4-20mA Current Loop Isolation

         
              
         Distributor IC         

              
         ISOS 4-20mA-F is the smallest in the industry' (7 pin single in line SIP7 Pin) low cost two wire passive current loop 4-20mA isolation IC developed by Shunyuan. This new product can supply power to the pre stage two-wire passive sensor or PLC, DCS equipment through the post feed mode, at the same time it can receive 4-20mA current signal from the output of two-wire sensor and other instrumentation equipment. Got a same linear & scale 4-20 mA signal after isolated. ISOS 4-20mA-F use Sunyuan's unique electromagnetic isolation coupling, high-efficiency loop stealing invention technology, The internal including current signal modulation and demodulation circuit, signal coupling isolation conversion circuit, and a high efficiency DC-DC. Boost circuit, etc. DC-DC booster circuit is a two-wire passive sensor or PLC, DCS equipment power distribution 16V ~ 21.5VDC, which facilitates the signal measurement, remote transmission, isolation and other functions of some passive sensors and meet the customer site need without external assistance power supply to achieve long-distance signal transmission and undistorted transmission. The output of IC is designed for a two-wire power supply loop (on-site explosion-proof function) according to 24VDC and sampling resistor (or load resistor) are connected in series. It is also match the analog input port of the active load of the current industrial field analog input interface board (host computer), PLC, DCS. Or other meters .

Detailed technical information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=25&id=109
3、Two-wire passive 4-20mA current loop isolation conditioner:

     ISOS 4-20mA-E Series Mini Low Cost 4-20mA Current Loop Isolation Conditioner IC 
         
         IISOS 4-20mA-E is the industry's smallest (7 pin single in line SIP7 Pin) low cost two wire passive current loop 4-20mA isolation IC developed by Shunyuan. This new product can convert an input active 4-20mA current signal into an isolated passive control signal output, controlling a two-wire power supply (explosion-proof) 4-20mA current loop to achieve the sensor signal acquisition matched with the active load of the analog input interface, which effectively solves the problem of signal collision interference between the active 4-20 mA current collected in the field and the receiving port power supply of the two-wire current loop power supply loop. The 7-pin single in line ultra small (19.5X12.5X9.8mm) standard PCB board design can be embedded in the instrument panel, sensor, PLC and other operation control board, which simplifies the choice of user system design and reduces the size and wiring costs. ISOS 4-20mA-E use Shunyuan's unique electromagnetic isolation coupling and high-efficiency loop stealing invention technology, so that the IC does not need independent power supply. The two-wire loop power supply output mode can save the auxiliary power supply and the two power lines, which greatly simplifies the user's design and reduces the their wiring cost.The internal of IC including a current signal modulation and demodulation circuit, a signal coupling isolation conversion circuit etc. The small input equivalent resistance enables the IC to collect the current signal voltage from the sensor output loop to an ultra-wide range (5~32VDC), so that the user can come true the needs of long-distance, distortion-free transmission without external auxiliary power supply.    

Detailed technical information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=25&id=98
4、Passive two-wire voltage signal to 4-20mA isolation transmitter：
      ISOS V-4-20mA series mini low cost two-wire passive V/I conversion power distribution isolation transmitter IC     
 

          
        ISOS V-4-20mA is the smallest in the industry' (7 pin single in line SIP7 Pin) low cost two wire passive current loop 4-20mA isolation IC developed by Shunyuan. The IC can provide a set of 5V (3mA) function expansion power supply to supply power for the pre stage device through the post current loop feeding mode, and receive the voltage signal from the output of the pre-stage device. and got the output is 4-20mA. Standard two-wire current signal after the isolation conversion. The 7-pin single in line ultra small (19.5X12.5X9.8mm) standard PCB board design can be embedded in the instrument panel, sensor, PLC and other operation control board, which simplifies the choice of user system design and reduces the size and wiring costs. The internal of product includes a signal modulation and demodulation circuit, a signal coupling isolation conversion circuit, a high-performance DC-DC conversion circuit, and a V/I conversion circuit etc. The output loop has a wide supply voltage range (12-36VDC), high conversion accuracy, and good linearity. The product is very convenient to use. Customers just need to add a small number of peripheral devices at the input end of the product to realize voltage signal distribution, such as voltage sensor, displacement potentiometer, etc., which need to provide power distribution type sensor and bridge (weighing) detection circuit. The internal integrated process and new technology isolation measures enable the device to meet the requirements of 3KVDC insulation voltage and industrial grade wide temperature, humidity, and vibration. Small size and easy to install. It can be placed inside the sensor to directly convert the displacement and angle resistance signals into a standard 4-20 mA signal. The full scale and zero point can be adjusted and calibrated through an external potentiometer by the user. ISOS V-4-20mA use Shunyuan's unique electromagnetic isolation coupling and high-efficiency loop stealing invention technology to achieve accurate isolation and conversion of voltage signals to 4-20mA standard signals. The output of  IC is designed for two-wire power supply loop feed technology with 24VDC and sampling resistor (or load resistor).It is matches the analog input port of analog input interface board (host computer), PLC, DCS or other instrument contains active load which used in industrial fields. The products have IC package on the PCB, DIN35 standard rail installation and PIM panel embedded installation. The DIN rail type installation can realize multi-channel isolation transmission functions such as one-in-one-out, two-in and two-out, three-in and three-out signals. PIM panel embedded intelligent transmission table can realize 4-20mA signal isolation display, alarm control and long-distance distortion-free transmission. Widely used in metallurgical mining, petrochemical, power equipment, medical equipment, industrial automation, new energy facilities and military research, users can choose the right products according to the needs of the site.

 
Detailed technical information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=25&id=51
5、Two-wire passive 4-20mA to voltage signal isolation converter:
      ISO 4-20mA-O Series Two-Wire Passive I/V Conversion Isolation Transmitter IC 

     
          ISO 4-20mA-O is the smallest in the industry (12 pin single in line SIP12 Pin) low cost two wire passive current loop 4-20mA to voltage signal isolation converter IC developed by SunYuan. It can make the input active 4-20mA current signal into a voltage signal output. this IC use two-wire input loop power supply mode, and has unique patented technology for high-efficiency signal loop stealing. It does not require external working power supply, which greatly simplifies the user's design process and reduces the cost of field wiring. The internal of module 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, and so on . The small input equivalent resistance allows the IC to acquire current signals from the sensor signal output loop and achieve a voltage drop of ≤10V when inputting a 20mA signal. and meet the needs of users without the need for external auxiliary power to achieve long-distance, distortion-free transmission of signals. ISO 4-20mA-O is often used for the isolation of 4-20mA current to voltage signals, eliminating the need for an external power supply to make wiring simpler, lower power consumption, lower self-heat (basically no temperature rise), and high reliability. The biggest feature of the item is that it does not require an external auxiliary power supply. It contains a subtraction circuit and an amplifier buffer output circuit. These circuits bring simple and reliable advantages and also have limitations in use. It is isolated and transmitted for the sensor and PLC output 4-20 mA signal. 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 signal source must have the ability to drive a 500 Ω load in order for the two-wire passive 4-20 mA turn to voltage signal isolation converter to make ISO 4-20 mA-O works well. At present, from the practical application experience of industrial sites, most of the field instruments and sensors, PLC\DCS, etc. can meet the 4-20mA signal output and have the ability to drive 500Ω load. In applications of industrial field, some use only one I/V conversion sampling resistor to convert the input current signal into a voltage signal. Although this circuit is simple, it is not practical. Firstly, 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 analysis, the zero point happens to be 1V. When this 1V is sufficient in the MCU resources, it can be subtracted by the microcontroller software. But in this case, the useful voltage will leave 5-1=4VDC instead of 5VDC. Because of  the maximum input voltage of the microcontroller A/D is the supply voltage of the microcontroller, this voltage is usually 5 VDC. Therefore, it is troublesome to deal with such a simple input conversion circuit, and in order to achieve the number of A/D conversion bits, the cost of the chip is increased. 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 all applied to the useful signal.

  
Detailed technical information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=25&id=48
6、Pt100/Cu50 two-wire passive type temperature signal loop isolation transmitter:
     ISO Z-W-O1 Series Two-Wire Passive Thermal Resistance Signal Isolation Transmitter IC
 

       ISO Z-W-O1 is the smallest in the industry (12 pin single in line IC packaing) Low cost passive two-wire 4-20mA loop-powered RTD signal isolation transmitter. The product is mainly used for the acquisition, isolation and transmission of Pt10 / Pt100 / Pt1000 or Cu50/Cu100 three-wire, four-wire or two-wire temperature sensor signals. This new product converts the temperature signal collected by the RTD sensor into a linear proportional standard 4-20mA current signal output. The product use the unique electromagnetic isolation mode of Sunyuan Technology and the patented technology of high-efficiency post-feeding technology. It can realize the accurate isolation and conversion of the thermal resistance temperature signal to the 4~20mA standard signal without independent power supply, and it is directly match with various types analog input ports of nstrument (such as PLC, DCS system, etc.). The product is designed as a low cost, small form factor standard SIP12Pin flame retardant IC package. The internal of IC includes signal modulation and demodulation circuit, signal coupling isolation conversion circuit, high-performance DC-DC boost circuit, signal zero point, full-scale calibration circuit and thermal resistance linearization, long-line compensation, and interference suppression circuit. The output loop has a wide supply voltage range (12-36VDC), high conversion accuracy, and good linearity. The full scale and zero point are adjusted and calibrated by the user through an external potentiometer. The internal integrated process structure and new technology isolation measures enable the device to achieve 3000 VDC signal input and output isolation, and can meet the industrial requirements of wide temperature, humidity, vibration and the harsh working environment. ISO ZW-O1 has the characteristics of small size, easy installation and use, and can be directly placed inside the transmitter. Customers only need to add a small number of devices on the periphery to realize high-precision acquisition and isolation of temperature signals of Pt100 and other RTD sensors. This item uses a unique electromagnetic isolation mode and high-performance post-feed technology, so that the IC does not need independent power supply. The two-wire loop power supply output mode can save two power lines, greatly simplifying the user's design and reducing the user wiring cost. The product has an IC package mounted on a small-volume PCB board, a head-type (installation method in the junction box), a PIM panel embedded, and a DIN35 standard rail mounting method. DIN rail mounted packaging can acheive thermal resistance signal signal one-in-one, two-in, two-out, three-in and three-out multi-channel isolation transmission transmission function, PIM panel embedded intelligent transmission table can realize thermal resistance signal isolation display , alarm control and long-distance distortion-free transmission and other functions. It is widely used in metallurgical mining, petrochemical, power equipment, medical equipment, industrial automation, new energy facilities and military research, users can choose the right products according to the needs of the site.

Detailed technical information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=23&id=87 

 7、PWM two-wire passive pulse width modulation signal loop isolation 

        transmitter IC 

        ISO D-O1 is the smallest in industry, low power passive PWM pulse width modulation signal isolation to a two-wire 4-20mA transmitter IC. Through the back stage (output interface) current loop feed mode to receive the PWM signal from the output of the pre-stage device, and the corresponding is 4~20mA standard two-wire current signal output after isolation conversion. The product has the characteristics of high conversion precision, good linearity and wide output voltage range (12-36VDC). The integrated process structure and new technology isolation measures enable the device to achieve signal input and output 3000VDC isolation, and meet the industrial requirements of wide temperature, humidity, vibration and harsh working environment. ISO D-O1 use the advanced high-speed optocoupler isolation mode and high-efficiency post-feed technology to achieve accurate isolation and conversion of PWM signals to 4~20mA standard signals. It can be match with the standard analog input ports of various types of instrumentation equipment. Such as: PLC, DCS, FCS) The two-wire ultra-small (22.0X11.0X9.0mm) standard PCB board design without working power can simplify the user system design options and reduce installation volume and wiring costs. The product also has an extended function DIN35 standard rail mounting and PIM panel display embedded mounting. The DIN rail mounted packaging can come true the multi-channel transmission functions such as one-in-one-out, two-in and two-out, three-in and three-out signals. The PIM panel embedded intelligent transmission table can realize the intelligent function of sensor analog signal isolation display, alarm control and long-distance distortion-free transmission. It is widely used in metallurgical mining, petrochemical, power equipment, medical equipment, industrial automation, new energy facilities and military research, users can customize the right products according to site needs.

Detailed technical information：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=23&id=117
8、Two-wire passive AC signal intelligent transmitter: ISO NNAC-O1 series AC signal to 4-20mA isolation transmission
 

   
      
        (PIM)DIN1X1 ISO AC-O1 (LED1) is a passive two-wire AC to DC (AC/DC) signal display control isolation transmitter that can be used to a new type of detection device for analog current signals make the isolate AC current or voltage in a linear proportional transmission output standard. The product does not need independent power supply, and integrates display, alarm, isolation and transmission. The output of the product is designed for the two-wire power supply circuit (on-site explosion-proof function) with 24VDC and sampling resistor (or load resistance) connected in series. The commonly matched with used analog input interface board (host computer), PLC, DCS or other instrument's analog input and output interfaces to achieve AC voltage and current measurement and control. The internal integrated process and new technology isolation measures enable the device to meet the 3KDC isolation voltage and industrial grade wide temperature, humidity, vibration and harsh environment requirements. (PIM) DIN1X1 ISO AC-O1 (LED1) series products are very convenient to use, adopt standard DIN35 rail mounted packaging installation and panel embedded installation design, which is convenient for users to install and use. The product can realize AC signal to DC without external components. 20mA current loop isolation and signal display function. The item use the two-wire loop power supply output mode, which can save two power cables, simplify the system design scheme, reduce the wiring cost, and supply power through the signal loop of the display control instrument or DCS/FCS system directly, and remotely monitor the power.  electrical automation, instrumentation, rail transit, industrial control intelligence and other fields are widely used. 

Detailed technical information   ：
http://www.szsunyuan.com/index.php?m=content&c=index&a=show&catid=57&id=21 
 
Commonly used two-wire passive isolation amplifier, isolation transmitter IC, Sunyuan product technical information download: 
1、4-20mA (0-20mA) Current Loop Isolator IC: ISO 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-E
4、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、The newest application of isolation amplifier: field analog signal bandwidth and isolation transmitter frequency response matching technology  
2、 IC package isolation amplifier isolation transmitter signal and power supply part external protection circuit diagram
3、ISO mV series: millivolt-level analog small signal dedicated isolation amplifier IC  
4、 ISO EM U(A)-P-O-T Series: Zero-point, gain-adjustable analog isolation amplifier isolation transmitter
 
5、 ISO EM A(U)-P-O-S Series: Input Distribution Isolation Transmitter IC 
6、 ISO EM U(A)-P-O-SD Series: Zero-point gain adjustable input distribution type isolated transmitter IC
 
7、 ISO EM-U(A)-P-O-O Series: Analog Input Isolation Transmitter with 1 to 2 Output Low Cost Small Size IC mounted Package 
8、 ISO EM A-P-O Series: 0-±10V Bilateral DC (Voltage/Current) Signal Isolation Amplifier Isolation Transmitter IC 
9、 DIN3 ISOEM U-P-O(A-P-O) Series: Single DIN35 rail mounting packaging low cost small volume isolation transmitter
 
10、DIN 1X2 ISOEM U(A)-P-O Series: one input and two output DIN35 rail mounting packaging isolation transmitter
 
11、DIN 2X1 C-P-O Series: 2 input and 1 output analog average isolation transmitter 
.
12、DIN 2X2 ISOEM U(A)-P-O Series: two in two out DIN35 rail mounting isolation transmitter
 
13、DIN 1X3 ISOEM U(A)-P-O Series：one in three out DIN35 Rail mounting isolation transmitter 
 
14、DIN ISO AC Series: Passive two-wire AC to DC signal isolation transmitter
 
15、ISO EMH 4-20mA Series: High isolation barrier for track voltage monitoring 
 
16、ISO F-P-O  Series: Frequency Signal (FV/FI Conversion) Isolated Converter IC
 
17、ISO U(A)-P-F Series: Analog Signal to Frequency Pulse Signal (V/F) Isolated Transmitter IC
 
18、ISO EM RMS-P-O Series: Analog True RMS (RMS) Signal Isolation Transmitter Isolation Amplifier 


Product shape and installation method for you reference