Analog Wireless RTU 4-20mA Signal Wireless Transmitter 2km Wireless
Control
LS-RAI02 Parameter
| Frequency | 433MHz or 450MHz or 470MHz |
| Power output | 100mW(600m),1000mW(3000m) |
| Products | 2AI,4AI,2AO,4AO |
| Input type | 4-20mA or 0-5V or 0-10V |
| Output type | 4-20mA or 0-5V or 0-10V |
| Resolution ratio | 24 bit |
| Accuracy | ±0.02% |
| Power supply | 9-36V DC usually use 24V DC |
| Interface | RS-485 |
| Channel No. | 16ch default, can program via DIP switch |
| Antenna | Sucker antenna with 1.5m cable |
| Working temperature | -35℃~+75℃ industrial |
| Working humidity | 10%～90% relative humidity, no condensation |
| Dimension | 2AI,4AI | 115×90×40(mm) |
| 2AO,4AO |
| Fix way | Standard 3.5 inch industrial DIN guild rail |
LS-RDIO0202 Parameter
| Parameter |
| Power output: | 1W (or 100mW version) |
| Power supply: | 9V-30V (usually choose 24V DC or 12V DC) |
| Control distance: | 3km (or 1km version) |
| Baud rate: | 1200bps |
| Receiving sensibility: | -123dBm@1200bps, -118dbm(9600bps) |
| Networking |
| Networking: | Point to point and point to multipoint |
| Protocol: | Modbus RTU protocol |
| Port Description |
| Input: | 2 active inputs (passive customize), isolated |
| Output: | 2 passive relay outputs, isolated contact max load AC250V/5A,DC30V/5A (active outputs 0-5V customize) |
| Communication port | RS485 (wireless RS485 customize) |
| Current |
| Transmit current: | <600mA (or 100mA version) |
| Receiving current: | <50mA (or 20mA version) |
| General |
| Frequency: | 433MHz, 400, 450, 470 or other band |
| Channel No: | 16 channels, can change via DIP switch |
| Physical Properties |
| Dimension: | 115×90×40(mm) |
| Antenna Connector: | SMA,vehicle antenna with 1.5m cable |
| Temperature: | -35℃~+75℃( industrial) |
| Mounting method: | Standard 3.5 inch industrial guild rail |
It is 1 master to many slaves application. Support Modbus RTU
protocol.
Master is the PLC at RO plant. This side we recommend a LS-R324 to
connect with PLC and RO Plant. LS-R324 is to collect all slave's
data, forward to PLC for analysis. PLC process data, give command
to RO Plant.
Slaves are the sensors on tank, the valves and the pumps.
a. About level sensors, there are 2 types, because there is salt
water, to avoid Corrosion, we don't suggest thrown-in type sensor.
Ultrasonic level sensor is more recommended.
Each sensor, you need an analog I/O module to collect and transmit
the level sensor's 4-20mA signal to PLC. Use our LS-RAI02 module,
it has 2 analog inputs.
b. About the pump, each one, you need a digital I/O module to start
or close the pump. It is to control when we should intake water
according tank level. Here we recommend LS-RDIO0202, it has 2
digital inputs and 2 relay outputs.
c. About the valves, each one, you need a digital I/O to start or
close the valve. It is to control when we should blow off water
according the tank level. Here we recommend LS-RDIO0202, it has 2
digital inputs and 2 relay outputs.
