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)â–¡ - â–¡

U/A: Input voltage or current ommunication 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 tput is RS232 or RS485

2： ISO 4021 U1-232/485 Means 0-5V tput is RS232 or RS485

3： ISO 4021 U5-232/485 Means 0-±5V tput 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