True rms (RMS) signal intelligent display control isolation transmitter:DIN ISO EM RMS-P-O (LED1)
Product Category: Specialized Designed Isolation Amplifier with LED Display
Input: 0-200mV,0-1000mV,RMS Output: 0-10V,1-5V
Power: -- Isolation Voltage: 3000VDC
Package: DIN35 Traffic Watch: times
Remarks: True rms (RMS) signal intelligent display control isolation transmitter
Product Description
True rms (RMS) signal intelligent display control isolation transmitter:DIN ISO EM RMS-P-O (LED1)

● High-precision visual display of the output signal value for on-site debugging and monitoring
● 4-digit LED digital display, high precision, display resolution, last 2 bits
● Programmable setting of two-way lower limit isolated switch alarm signal output
● 0~200mV AC true RMS signal isolation amplification, transmission
● Signal wide range bandwidth input: 0~1KHz
● Extremely high linearity over the full range (non-linearity <0.2%)
● Auxiliary power supply and signal input / output 3000VDC three isolation
● Auxiliary power supply: 5V, 12V, 15V or 24VDC single power supply
● Accuracy level: 0.2, level 0.5
● Low cost, small size standard DIN35 rail mounting
● Industrial temperature range: -20~+70 °C
Typical application :
● Analog signal data acquisition, isolation amplification and display control transmission
● Signal true RMS AC+DC measurement
● Acquisition monitoring system ground interference suppression
● Instrumentation and sensor signal transmission and reception
● Non-electrical signal transmission
● Sensor signal detection, conversion and distortion-free remote transmission
● High accuracy measurement and transformation of industrial field signals
● Power control system signal isolation, detection and monitoring
● Isolation and long-distance transmission of industrial field AC signals
● Oil, chemical, environmental protection, mining system control point monitoring
● Sensor and transmitter working status display and control

SunYuan DIN 1X1 ISO EM RMS-PO (LED1) series of intelligent AC true RMS (TRMS) to DC signal transmitter,It  is a kind of AC rms voltage signal isolated by linear ratio transmission output standard analog DC voltage signal New detection device. The product integrates isolation, display, alarm control and transmission. It contains a set of high efficiency and multi-isolated DC/DC power conversion circuit, TRMS/DC signal conversion circuit, signal coupling isolation conversion circuit, display and alarm control circuit, etc. . The core component of the product is the TRMS signal isolation amplifier module. The TRMS module is based on a single-chip TRMS/DC converter and uses a new D-S calculation technology with a high-precision signal isolation amplifier. The advantage is that the effective values ​​of various voltage and current waveforms can be measured accurately and in real time without considering the waveform parameters and the degree of distortion. In short, the true RMS measurement module TRMS has high accuracy (30Hz~1kHz error <0.25%), good linearity (non-linearity error <0.02%), wide dynamic current range, fast response, measurement Wide range, easy to use and so on. The use of this module allows accurate, real-time measurement of the rms values ​​of various signal waveforms without regard to waveform parameters and distortion, which are not achievable with average measuring instruments. It is especially suitable for: 0 ~ 200-1000mVRMS voltage signal is proportionally converted into 1-5V/0-5V/0-10V and other DC voltage signals for isolation, amplification, transmission, display and control. Products are widely used in power remote monitoring, instrumentation, medical equipment, industrial automation and other fields. The internal integrated process structure and new technology isolation measures enable the device to achieve: auxiliary power supply, signal input and output 3000VDC three isolation. And can meet the industrial requirements of wide temperature, humidity, vibration environment. Intelligently designed new isolation transmitter series products have built-in reverse connection, overload, anti-surge and other protection circuits, no external components, zero gain adjustment, standard DIN35 rail installation, convenient for users to use on site.
    The DIN 1X1 ISO EM RMS-P-O (LED1) series is intelligently designed with features not found in traditional products. The AC signal can be isolated and transmitted only by a single power supply, and displayed in decimal digital quantities according to the set range. The traditional embedded analog display meter is adjusted by a potentiometer, and the adjustment parameters are single, inflexible, and greatly affected by temperature. Compared with the traditional analog display table, this intelligent digital display table is operated by two key combinations and controlled by the central processing unit CPU, which can realize setting of various parameters such as zero point, full scale, decimal point, alarm and delay. , with strong flexibility and practicality. The digital display adopts an LED display panel and has reverse and overcurrent protection functions. Products are widely used in industrial control, petrochemical, environmental protection, smart home, power remote monitoring and other control points monitoring.
    DIN 1X1 ISO EM RMS-P-O (LED1) series of active intelligent isolation transmitters can directly AC signal acquisition, isolation and conversion, as well as signal display and output alarm control. The embedded intelligent digital display meter is used to measure the transmission output signal. The displayed digital value is not the direct output voltage value, but the signal preset value. By setting the measured output zero point and full-scale voltage relative to the two presets. The value is displayed linearly. For example: the transmission output is 0-5V, 0V is set to 0, and 5V is set to 5.000. Then when the output is 2V, the watch will display 2.000. When the input is 2.5V, the watch will display 2.500. If 0V is set to 1000, 5V is set to -1000, when the output is 2.5V, the watch will display 0. When the output is 3.75V, the watch will display -500. The maximum display range of the digital display is 9999, which is four digits; the minimum is -1999. Its alarm function with two isolated switch outputs can display, control and alarm on the spot. The two alarm points set have positive and negative alarm direction settings. The alarm object of the alarm point is for the display reading. The last decimal point of the LED panel flashes during the alarm, and the alarm information is isolated and output by the digital optocoupler. For products that need to set the alarm function, the upper or lower limit alarm value and alarm mode can be modified by the programmer. For detailed setting method, please refer to the “Display Table User's Manual” on the following page.
Remark: The alarm signal is the OC gate (open collector) output. For the specific application, please refer to the [Alarm Output and Application] on the following page.
Product selection example:
Example 1, input: 0-200mV; auxiliary power supply: 24VDC; output: 0-5V; LED display.
             Model: DIN 1X1 ISOEM 200RMS-P1-O4 (LED1)
Example 2, input: 0-1000 mV; auxiliary power supply: 12 VDC; output: 0-10 V; LED display.
             Model: DIN 1X1 ISOEM 1000RMS-P2-O5 (LED1)
Example 3, input: 0-500mV; auxiliary power supply: 5VDC; output: 0-10V; LED display.
             Model: DIN 1X1 ISOEM 500RMS-P3-O5 (LED1)
Typical application wiring diagram:

Alarm output and application:
1. The DC level signal generated by the two-way alarm signal in the main CPU chip is isolated and output by the optocoupler. The output low level indicates the alarm state, and the output high level is the non-alarm state.
2. Because the display controller is passive two-wire system, the minimum working current is 3mA, so the alarm signal is also very weak, the minimum is only 0.5mA. The signal is isolated by a phototransistor type photocoupler with a strong current spreading capability, and an open collector (OC gate) output is used. The output is connected to the pull-up voltage, and the current can be expanded up to 120mA. The principle of this phototransistor type photocoupler is shown in the figure below: the instrument signal is isolated by optocoupler, 9, 10 "1H /1L", 7, 8 "2L /2 H" wiring port is optocoupler OC gate The output end of the signal is connected to the external power supply circuit of the instrument, and further amplifies and energizes the alarm signal, and finally reaches an actuator that can drive the required sound, light, electricity, refrigeration, heating, and motor. 9, 10 "1H / 1L" is the first alarm output, 7, 8 "2L /2 H" is the second alarm output, "1H", "2H" connected to the phototransistor collector, "1L", "2L emitter.

                                   Alarm output 1                                                                  alarm output 2
3. Because of the limitation of the maximum current of the phototransistor Ic, its expansion and driving load capacity is limited. If the user needs more driving current, it can be used to drive relays, solenoid valves, stepping motors and other devices on site, and can externally connect the power expansion circuit. The power amplifier tube or servo circuit is subjected to current amplification and special processing.
Order selection instructions:
Please read the entire contents of this manual carefully before ordering to determine whether the product meets the user's on-site application and is correctly selected.
1. The factory default setting of this product is set to “0.0” by 0V and “5.000” by 5V.
2. When ordering, the user should first put forward the display specification requirements. We will adjust the digital display meter before leaving the factory, which is convenient for users to use directly.
Sunyuan Technology SY Series Intelligent Digital Display
Sunyuan Technology the newest developed SY LED / SY LCD series,with low cost, small size isolation transmitter 4-20mA two-wire passive intelligent display control instrument, dedicated to sensors and isolation transmitters |isolation amplifiers | PLC | DCS, etc.Isolated transmission of analog signals and intelligent display control. These LED or LCD four-bit high precision intelligent digital display meters use the principle of two-wire passive digital adjustment. The electrical signal passed through the digital measuring circuit is used as the input signal of the display meter and also the working power of the display meter. This two-wire passive type of operation eliminates the need for additional auxiliary power supplies. It is easy to connect in industrial field and has reverse protection and overcurrent protection. Products are widely used in industrial intelligent control, instrumentation intelligence, petrochemical, environmental monitoring, rail transit, electric vehicles, smart home, fire safety, mining monitoring and other industries on temperature, pressure, flow, liquid level, displacement, speed, frequency Monitoring of physical quantity control points. In industrial control systems, most applications use a variety of related sensors to convert physical quantities such as temperature, pressure, and displacement into 4-20 mA electrical signals, and intelligent digital display displays these electrical signals in real time for human convenience. Carry out all kinds of monitoring and control

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