Two-wire passive sensor power distribution type control isolation transmitter:DIN 1X1 ISOEM-S (LED1)
Product Category: Active Intelligent Isolation Amplifier with LED Display
Input: 4-20mA,0-10V etc Output: 0-5V,4-20mA etc
Power: -- Isolation Voltage: 3000VDC
Package: DIN35 Traffic Watch: times
Remarks: Two-wire passive sensor power distribution type control isolation transmitter
Product Description
Two-wire passive sensor power distribution type control isolation transmitter:DIN 1X1 ISOEM-S (LED1)

Features:
● Visual display of online input or output signal values ​​for on-site inspection and operation
● High-precision four-digit LED digital display with ±2 words at the end of the display resolution
● Programmable setting of two-way lower limit isolated switch alarm signal output
● Accuracy level: 0.1, 0.2, 0.5
● Input configuration function to expand the isolated power supply: 5V, 12V, 24VDC, etc.
● Non-linearity <0.2% in full range, zero-free and gain adjustment
● 3000VDC full isolation between signal input/output/distribution/auxiliary power
● Auxiliary power supply: single power supply such as 5VDC, 12VDC, 15VDC, 24VDC, etc.
● 0-75mV//0-5V/0-±100mV/0-±10V voltage signals and
    0-10mA/0-±20mA/4-20mA current signal isolation, amplification conversion
● Low cost, small size standard DIN35 rail mounting
● Industrial temperature range: - 25 ° C ~ + 70 ° C
 
typical application :
● Passive sensor isolation power distribution and signal acquisition display control
● Preamplifier, bridge and other circuit configuration power supply is convenient to collect signals
● PLC, DCS field two-wire analog signal isolation detection
● Industrial field signal isolation, conversion, amplification and long-distance transmission
● Analog signal ground line interference suppression and data isolation and acquisition
● Power monitoring, medical equipment isolation monitoring safety barrier
● Instrumentation and sensor signal transmission and reception detection
● Isolation, monitoring and transformation of signals such as 4-20mA/0-5V
● Industrial equipment operation measurement, monitoring and remote control
● Oil, chemical, environmental protection, mining system control point monitoring
● Temperature, pressure, flow, liquid level signal monitoring display
● Sensor and transmitter working status display and control

SunYuan DIN 1X1 ISO EM-S (LED1) series of active intelligent power distribution type isolation transmitters, which are used to isolate and convert analog voltage or current signals (two-wire passive sensor, PLC) into precision. The linearity matched display controls the intelligent transmitter. The product integrates isolation, display, alarm control, transmission and distribution. It contains a set of high efficiency and multi-isolated DC/DC power conversion circuit, signal modulation and demodulation circuit, signal coupling isolation conversion circuit, display and alarm control. Circuits, etc. It is especially suitable for two-wire passive sensors: 0-75mV/0-5V/0-10V/0-1mA/0-20mA/4-20mA and other analog-free analog-free isolation amplification, display and control. The internal isolated power supply not only supplies power to the internal amplification and conversion circuit of the module, but also provides a set of DC regulated power supply (maximum load 40mA) DC power supply that is common to the input terminal but is totally isolated from the auxiliary power supply and output signal. Circuit expansion. Such as: bridge circuit, reference circuit, passive sensor power supply. The product adopts a low-cost solution of magnetoelectric coupling, and is mainly used in applications where there is no special requirement for EMC (electromagnetic interference). 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. The intelligently designed new isolated transmitter series has built-in reverse protection, overload, anti-surge and other protection circuits. It does not need external components and is free of zero gain adjustment. It adopts standard DIN35 rail installation method, which is convenient for users to use on site.
 
    The DIN 1X1 ISOEM-S (LED1) series is intelligently designed to provide a variety of functions not found in traditional products. The analog 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. The products are widely used in industrial control, petrochemical, environmental protection, smart home, mining and other industries to monitor the temperature, pressure, displacement, flow, liquid level and other physical quantity control points.
 
    DIN 1X1 ISOEM-S (LED1) series of active power distribution intelligent isolation transmitters can directly isolate and convert analog signals, and provide functions to expand the distribution power supply to the input terminal. At the same time, it has signal display and output alarm control functions. . The embedded intelligent digital display meter is used to measure the transmission signal. The displayed digital value is not a direct output voltage or current measurement value, but a signal preset value. By setting the measured output zero point and full-scale voltage or current value relative to each other. These two preset values ​​are displayed linearly. For example: the transmission output 4-20mA, 4mA is set to 0, 20mA is set to 8000, then the meter will display 2000 when input 8mA, 4000 will be displayed when input 12mA; and if the 4mA is set to 1000, 20mA is set to - 1000, the table will display 0 when 12mA is input, and -500 will be displayed when 16mA is input. 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: 0-5V; auxiliary power supply: 24VDC; output: 4-20mA; power distribution 5VDC; LED display.
              Model: DIN 1X1 ISOEM U1-P1-O1-S4 (LED1)
Example 2, input: 4-20 mA; auxiliary power supply: 24 VDC; output: 4-20 mA; power distribution 24 VDC; LED display.
              Model: DIN 1X1 ISOEM A4-P1-O1-S3 (LED1)
Example 3, input: 4-20 mA; auxiliary power supply: 5 VDC; output: 0-5 V; power distribution 15 VDC; LED display.
              Model: DIN 1X1 ISOEM A4-P3-O4-S2 (LED1)

Product Picture:

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.



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 4mA and “200.0” by 20 mA.
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.

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