DC Current/Voltage (0-5V/4-20mA,etc) to RS485/RS232 A-D Converter with Temperature Detection

SYAD02C Series

SYAD02C Series A-D Converter Model selection:

 SY AD 02C          U(A)□ -  232/485 

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: SY AD 02C can support RS232 and RS485 communication port output, user can choose the communication port according the application environment. But at the same time, only one communication port can work, otherwise thre is interference.

 

Model Selection Examples:

1. SY AD 02C A4-232: Means 2-channel 4-20ma input, support 1-channel DS18B20 temperature signal input, RS232 output.

2. SY AD 02C A7-485: Means 2-channel 0-5V input, support 1-channel DS18B20 temperature signal input, RS485 output.

3. SY AD 02C U1-232: Means 2-channel 0-±5V input, support 1-channel DS18B20 temperature signal input, RS232 output.

 

SY AD 02C Series A-D Converter General Parameters:

(typical @ +25℃, Vs@24VDC)

Input:      Voltage / Current

Accuracy:   0.05%

put imbalanceIn:     ±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)

Temperature Measure Range:   -55℃~+125℃, with inherent temperature resolution 0.5℃.

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:   - 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:   120 mm  x  70 mm  x  30mm

Weight:       approximately 72g