four channel analogy Positive and Negative isolation input to RS232/485 Converter(LED Display)
Product Description
Two/Four-channel 0-75mV/0-5V/0-±10V/4-20mA/0-±20mA to RS232/RS485 Converter with LED Display
Model selection：
SYAD 02/04B - U(A)□
02/04B Channel choose
02B:Two channel
04B:Four Channel
U(A)□: 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：SYAD02/4B module supports both RS232 and RS485 communication interface, the user can select the corresponding communication interface based on the use of the environment, but at the same time can have only one of the two interfaces work, or will cause interference.
Model selection examples.
1： SYAD02B-A4 Two channel 4-20ma signal output
2： SYAD04B- A7 Four channel 0-±20mA signal output
3： SYAD02B- U1 Two Channel 0-5V signal output
2-ch/4-ch Isolation 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）
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.
Impact Resistance： 3KVAC， 1.2/50us(peak value)
Dimensions： 123 mm x 70 mm x 30mm
Weight： approximately 72g
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