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Isolated Positive and Negative 0-5V to RS232/RS485 A-D Converter ISO 4021 Series

Analog data acquisition isolated AD conversion amplifier module. Shunyuan technology patented products
Product Description
ISO4021 Series Isolated 0-±100mV,0-±10V,4-20mA,0-±20mA to RS232/RS485 A-D Converter
Model selection:
ISO 4021 U(A)□ - □

U/A: Input voltage or current signal Output: communication interface
U1:0-5V A1:0-1mA 232/485: Output is RS-232 or RS-485 interface
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


Remark:When the communication interface is RS232, it should connect with RXD and TXD port; when the communication interface is RS485, it should connect with DATA+ and DATA- Port. RS232 and RS485 can’t work at the same time.
E.g.
1: ISO 4021 A4-232/485 Means 4-20ma signal input, output is RS232 or RS485
2: ISO 4021 U1-232/485 Means 0-5V signal input, output is RS232 or RS485
3: ISO 4021 U5-232/485 Means 0-±5V signal input, output is RS485 or RS232


ISO 4021 A-D Converter General Parameters:
(typical @ +25℃,Vs is 24VDC)
Input: Voltage / Current
Accuracy: 0.05%
Input imbalance: ±0.1 uA/℃
Temperature Drift: ±15 ppm/℃ (±30 ppm/℃, max)
Input Resistance: 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 Port protection: over-voltage/over current protection
Communications: protocol RS-485 or RS-232 ASCII protocol and MODBUS RTU communication protocol
Baud rate(300、600、1200、2400、4800、9600、19200、38400bps)software configuration
address(00H~FFH)software configuration
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: - 45 ~ +80℃
Storage Humidity: 10 ~ 95% (non-condensing)
Isolation withstand voltage: between input and output: 3KVDC,1 minute,stray current 1mA
Output and power are common-ground.
Endure Impact Voltage: 3KVAC, 1.2/50us(peak value)
Dimensions: 83 mm x 37 mm x 51mm
Weight: 72g


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