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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