2-wire 4-20mA Current LOOP Signal Digital Meter:SY LED1
Product Category: Intelligent Current Signal LED Display Meter
Input: 4-20mA Output: 4-20mA
Power: -- Isolation Voltage: --
Package: -- Traffic Watch: times
Remarks: 2-wire 4-20mA Current LOOP Meter.
Keywords: 2-wire   Meter   Panel   Display   4-20mA   Current   Loop  
Product Description
SY LED1 Current Signal Digital Meter
Two wire passive programmable 4-20MA loop (four bit LED ) display 
Low cost module design ,easy to connected with converter  and instrument &meters by PIM.    
two wire passive working way, Need no other auxiliary  power
High measuring accuracy and four bit display  and reach  ±2  
Adopt LED display panel, can be fit to surroundings with light or Non-light  
small size design .Item size :35×22.5mm,thickness:17.5mm    
Industrial temperature range:-45ºC~80ºC,with high Reliability
Typical application:
 Display status of sensor and converter while working.   
 Measurement ,inspection and remote control on industrial equipment.   
 monitor petroleum, chemical industrial ,E-protection and controlling point for mine. 
 Monitor on temperature, pressure, current, liquid level   
 Collect data from  PLC,DCS system and display.   
 Developing products  related with instrument meters ,medical Medical facilities,industrial control equipment.
        Sunyuan LED1 low cost small size four bit two wire passive intelligent loop LED display  adopt passive input and two wire connect with converter 4-20mA loop by series. It can display analog value from 4-20mA in loop by Decimal number according to setting range linearly and correspondly.SY LED1 adopt two wire passive Working principle and measure current signal with go through loop which is input signal of display.also is power of display. Need  no auxiliary power.So it is easy to connect wire . with Small size,high accuracy and low cost etc advantages. Comparing to traditional  display .There are two keys on Sunyan LED1.The display is controlled by CPU.Zero,Full  scale,Dot,alarm,delay time can be set again,It is flexible and practical ,digital meters adopt LED display panel,Each LED segment is drived by constant current. Brightness is uniform during 4-20mA .It is with reverse,over current protection.It fit to monitor Physical quantity  of temperature, pressure, current  and liquid of industrial site , Petroleum and chemical, Environmental monitoring, The mining industry,In most occasion. It covert temperature, pressure, current, liquid level to 4-20mA then connected with SYLED1 display meters .Then display related number Through related sensor it is convenient for user to Omni-directional control.  
        SY LED1 display measures4-20mA current signal. Do not getting power from 4-20mA loop .Number displayed is not direct current value. and it is Preset value of 4mA and 20mA, and display both related preset value linearly.For example .Set 0 for 4mA,Set 8000 for 20mA,  It will display 2000 while input is 8mA,It will display 4000 while inputing 4mA,.If you set 1000 for 4mA,Setting -1000 for 20mA.LED1 will display 0 while inputing 12mA,It will display while input 16mA, Maximum No. is 9999(four bit),Minimum is -1999.
        SY LED1 is with alarm..with two isolated Two isolated switching .It can display,control and alarm. This feature only can realized  from procedure.two spare PC 452 Optical coupling the pad position Reservate..It will fixed while user need alarm function..Two alarm point is set can be positive or negative alarm direction.  Alarm object for display readings, The last decimal point on LED display panel flashing.  alarm messages through port output signal output can drive optocoupler.
SY LED1 dimension: 35.0×22.5×17.5 mm,Adopt retardant plastic shell by PIM.  
Hole size of panel 33.0×20.5  +0.2 mm, Display control meters or internal sensors in Cabinet  and the transmitter signal.


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

Adopt product combination picture with "Sunyuan Intelligent Display Control Software

Adopt the related products data of design (SunYuan Intelligent display controll software)
一、Intelligent digital display with built-in intelligent display control software
1、Low cost and small size intelligent digital meter: SY LED1 / SY LCD1 type
SY LED1 detail technical information:


2、Panel embedded intelligent digital display:SY LED2 type
detail technical information:


3、Two-wire intelligent digital meter:SY LED3 / SY LCD3 type
SY LED3 type detail technical information:


4、Isolation transmitter embedded intelligent digital display:SY LED4 / SY LCD4 type
SY LED4 type detail technical information:


5、Hessmann isolation transmitter intelligent digital display:SY LED5 / SY LCD5 type
SY LED5 type detail technical information:


二、Built-in intelligent display control software---two-wire passive type intelligent: signal isolator / isolation transmitter / isolation distributor
1、Passive two-wire 4-20mA intelligent monitoring isolator:DIN 1X1 ISO 4-20mA(LED1)
Detail technical information: 


3、Two-wire passive 4-20mA loop feed display control transmitter:DIN 1X1 ISO 4-20mA-F(LED) 
detail technical information: 


4、Two-wire passive type 4-20mA isolated to voltage signal display control instrument:DIN 1X1 ISO 4-20mA-O(LED1)
detail technical information:


5、Two-wire AC signal (AC/DC) feed isolation display control smart meter:DIN 1X1 ISO NNAC-O1(LED1)
detail technical information:
6、Potentiometer,electric bridge etc other voltage sensor signal conversion display control instrument:DIN 1X1 ISO V-4-20mA(LED1)
detail technical information: 


三、Built-in intelligent display control software---active intelligent: isolation amplifier / isolation transmitter / isolation distributor
1、Intelligent universal standard analog active transmitter: DIN 1X1 ISOEM (LED1) series
detail technical information:

2、Support differential input millivolt analog small signal distribution type display control transmitter: DIN 1X1 ISOEM-SD (LED1) series
detail technical information:

3、Two-wire passive sensor power distribution type display control isolation transmitter for input: DIN 1X1 ISOEM-S (LED1) series
detail technical information:


4、6000V high isolation analog signal display control transmitter: DIN 1X1 ISO EMH (LED1)
detail technical information:

四、Built-in intelligent display control software---sensor-specific intelligent: isolation amplifier / isolation transmitter / isolation converter
1、AC signal to direct current (AC/DC) display control transmitter: DIN 1X1 ISO AC-P-O (LED1) series
detail technical information:

2、Analog isolation to pulse frequency signal display control isolation transmitter: DIN 1X1 ISO U/A-P-F (LED1) series
Detailed technical information:

3、Sine wave, square wave to analog signal display control isolation transmitter: DIN 1X1 ISO (SY) F-P-O (LED1) series
detail technical information:


4、Electronic ruler, angular displacement signal display control isolation transmitter: DIN 1X1 ISO R-P-O (LED1) series
detail technical information:

5、Pt100/Cu50 RTD Signal Display Control Isolation Transmitter: DIN 1X1 ISO Z-W-P-O (LED1) Series
detail technical information:
6、AC true RMS signal to analog signal display control transmitter: DIN 1X1 ISO EM RMS-P-O (LED1) series
detail technical information:

7、PWM pulse width modulation signal isolation display control transmitter: DIN 1X1 ISO D-P-O-Q (LED1) series
detail technical information:

五、Built-in intelligent display control software---analog data collector (intelligent AD/DA converter)
1、2-channel analog AD acquisition display control isolation transmitter: ISO 4021 (LED1) series
detail technical information:

2、Bus RS232/485 isolated conversion 4-20mA display control module: ISO DA (LED1) series
detail technical information:



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