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DC Current/Voltage to RS485/232 A-D Converter Support Modbus RTU SYAD

Analog data acquisition isolated AD conversion amplifier module. Shunyuan technology patented products
Product Description
2-Channel/4-channel DC Current/Voltage Signal to RS232/RS485 A/D Converter without LED Display

Model selection:
SY AD 02(4)A -U(A)□

02(4): Input Channel
02:2 Channel
04:4 Channel
U(A)□: Input Voltage or Current Signal
U1:0-5V A1:0-1mA
U2:0-10V A2:0-10mA
U3:0-75mV A3:0-20mA
U4:0-2.5V A4:4-20mA
U5:0-±5V A5:0-±1mA
U6:0-±10V A6:0-±10mA
U7:0-±100mV A7:0-±20mA
U8:Customized A8:Customized

Note:Support both RS232 and RS485 interface, support MUDBUS RTU.
Model Selection Examples:.
1: SYAD02A A4 Means 2channel,4-20ma signal input, output is RS485 or RS232 interface
2: SYAD02A A7 Means 2channel, 0-5V signal input, output is RS485 or RS232 interface
3: SYAD04A U1 Means 4channel,0-±5V signal input, output is RS485 or RS232 interface

SYAD02/04A A-D Converter General Parameters:
(typical @ +25℃,Vs is 24VDC)
Input: Voltage / Current
Accuracy: 0.05%
Input maladjustment: ±0.1 uA/℃
Temperature Drift: ±15 ppm/℃ (±30 ppm/℃, max)
Input load: 50Ω (4-20mA/0-20mA/0-±20mA current input)
100Ω (0-10mA/0-±10mA current input)
1KΩ (0-1mA/0-±1mA current input)
>1MΩ(voltage input)
Band width: -3 dB 10 Hz
Switching rate:10 Sps
Common mode restraint(CMR): 120 dB(1kΩ Source Imbalance @ 50/60 Hz)
Normal mode restraint(NMR): 60 dB (1kΩ Source Imbalance @ 50/60 Hz)
Input terminal protection: over-voltage/over current protection
Communications: protocol RS-485 or RS-232 ASCII character communication protocol and MODBUS RTU communication protocol
Baud rate(300、600、1200、2400、4800、9600、19200、38400bps)software selectable
address(00H~FFH)software selectable
Response Time:100 ms max
Operation Power Supply: +8 ~ 50 VDC wide power supply range, internal anti-reverse & over-voltage protection
watt consumption: < 1W
Operation Temperature: - 45 ~ +80℃
Operation Humidity: 10 ~ 90% (non-condensing)
Storage Temperature: - 55 ~ +85℃
Storage Humidity: 10 ~ 95% (non-condensing)
Isolation withstand voltage: between input and output: 3KVDC,1 minute,leakage current 1mA
Output and power are common-ground.
Endure Impact Voltage: 3KVAC, 1.2/50us(peak value)
Dimensions: 123 mm x 70 mm x 30mm
Weight: approximately 72g



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