DIN Rail Isolated 4-20mA/0-10V to RS232/RS485 a-D Converter

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 @ +25º C, Vs is 24VDC)
Input: Voltage / Current
Accuracy: 0.05%
Input imbalance: ± 0.1 uA/º C
Temperature Drift: ± 15 ppm/º C (± 30 ppm/º C, 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 ~ +80º C
Operation Humidity: 10 ~ 90% (non-condensing)
Storage Temperature: - 45 ~ +80º C
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