2 Channels Isolation 0-20mA/4-20mA to RS485 or RS232 Converter (support Modbus RTU) Data Collector Acquisition (2-16channels is available)

Model selection:

ISOAD   A   -   

Input and Channel Code                                               Communication interface

Channel code:01 ~ 08,number of channel

01:1 channel 4-20mA/0-20mA signal input                 485: output is RS-485 interface    

02:2 channel 4-20mA/0-20mA signal input                 232: output is RS-232 interface

03:3 channel 4-20mA/0-20mA signal input

.........

08:8 channel 4-20mA/0-20mA signal input       

Note: If the selected product has less than 8 channels, it is the same externalview as that of AD A08, wiring scheme, and communication protocol. The only difference is that the selected one has less channels to measure data.

Mode selection eg.1: Model:ISOAD A01-485 Indicates 1 channel, 4-20mA/0-20mA signal input,input is RS485 interface

Mode selection eg.2: Model:ISOAD A06-232 Indicates 6 channel,  4-20mA/0-20mA signal input,input is RS-232interface

Mode selection eg.3: Model:ISOAD A08-485 Indicates 8 channel, 4-20mA/0-20mA signal input,input is RS 485interface

ISOAD Series 4-20mA to RS485/RS232 Converter Inroduction:

(typical @ +25ºC,Vs is 24VDC (It is recommended to use power supply under high stability and precision environment.)

Input type:  input current 4-20mA/0-20mA

Precision:  @ +25ºC (table 1)

Input detuning:  ±0.1 uA/ºC

Temperature drift:  ±15 ppm/ºC (±30 ppm/ºC, max)

Input resistance:  < 250 Ω (4-20mA/0-20mA input current)      

Bandwidth:  -3 dB 10 Hz

Conversion rate:  10 Sps

Common mode restraint (CMR): 120 dB(1kΩ Source Imbalance @ 50/60 Hz)

Norm mode restraint (NMR): 60 dB (1kΩ Source Imbalance @ 50/60 Hz)

Input terminal protection: over-voltage protection and over-current protection

Communication: support standard Modbus RTU protocol and character communication protocol, RS-485 or RS232 interface. 

            Baud rate(300 bps.600 bps.1200 bps.2400 bps.4800 bps.9600 bps.19200 bps.38400bps)software selection is available

Location(0x00~0xFF)software selection is available

Communication response time:100 ms max

Power supply:  +8 ~ 50 VDC wide range power supply, internal anti-reverse and overvoltage protection circuit

Power consumption:    less than 1W
Operating temperature:    - 45 ~ +80ºC

Humidity: 10 ~ 90% (no condensation)
Storage temperature: - 45 ~ +80 ºC
Storage humidity: 10 ~ 95% (no condensation)
Isolation voltage: input channel 1 / input channel 2 / ... / input channel 8 / output / auxiliary power supply
             between every two group: 3KVDC, 1 minute, leakage current 1mA.
Shock voltage: 3KVAC, 1.2/50us (peak)
Dimensions: 145 mm x 82 mm x 42mm
Weight: about 256g