描述
Product Overview
Modbus liquid level transmitter is an instrument that uses high-performance pressure sensing chips, combined with advanced circuit processing and temperature compensation technology, to convert liquid level changes into linear current or voltage signals. The product adopts the 485 communication interface standard ModBus RTU communication protocol, which can be widely used for liquid level monitoring in fields such as fire water trucks, water plants, sewage treatment plants, urban water supply, high-rise water tanks, wells, water towers, geothermal wells, mines, industrial water tanks, hydrogeology, reservoirs, rivers, oceans, water circulation, and water treatment.
Product Features
- High measurement accuracy: 0.2% FS or 0.5% FS (optional).
- Wide measurement range:-0.1~+100MPa (optional).
- Output signal: RS485 standard ModBus RTU communication protocol.
- Product power: 0.35W.
- Power supply: 10-30V DC.
- Protection level: IP65.
- Functional features:
- All stainless steel structure, protection level IP65.
- Wide voltage power supply 10-30V wide voltage power supply.
- Reverse polarity protection and instantaneous overcurrent and overvoltage protection meet EMI protection requirements.
- Pressure overpressure protection, capable of withstanding 1.5 times overpressure instantly.
- Temperature automatic compensation, temperature drift automatic correction.
- 485 communication interface standard ModBus RTU communication protocol.
Main Technical Indicators
| Measurement Range | Measurement Accuracy | Output Signal | Product Power | Power Supply | Overload Capacity |
|---|---|---|---|---|---|
| -0.1~+100MPa (optional) | 0.2% FS or 0.5% FS (optional) | RS485 standard ModBus RTU communication protocol | 0.35W | 10-30V DC | <1.5 times the range |
| Long term stability | Response time | Zero drift | Sensitivity drift | Operating temperature | Medium temperature |
| ≤ ±0.3%FS | ≤1ms | ≤ ±1.5%FS | ≤ ±1.5%FS | -20~60℃ | 0~40℃ |
| compensation temperature | measuring medium | Protection Rating | |||
| -10~70℃ | Gas and liquid that are non corrosive to this stainless steel | IP65 |
Application areas
- Fire water truck
- waterworks
- sewage treatment plant
- Urban water supply
- High rise water pool
- well
- water tower
- geothermal well
- mine
- Industrial water tank
- hydrogeology
- Reservoir
- River
- Ocean
- Water Cycle
- Water Treatment
Installation Instructions
- Equipment Checklist.
- Wiring Instructions:
- Power Supply: Connect the red wire to the positive pole of the power supply and the black wire to the negative pole of the power supply.
- 485 communication: Connect line A to 485-A and line B to 485-B.
- Equipment installation:
- Install the equipment in the appropriate position.
- Ensure that the equipment is securely installed.
Equipment Operation Instructions
- Panel Description:
- Liquid Level Level: The proportion of the current liquid level value in the range.
- Negative sign: Displayed when the liquid level is negative.
- Upper/Lower Limit Over limit Alarm Display: The upper limit is indicated by an up arrow, and the lower limit is indicated by a down arrow.
- Password location when entering settings.
- Liquid level value.
- unit.
