Piezoresistive permeameter for tunnel civil engineering

Piezoresistive permeameter for tunnel civil engineeringIt is a sensor for measuring seepage water or static water pressure, used to measure the pore water pressure or seepage pressure inside structures, suitable for measuring backfill or in-situ pore water pressure, uplift pressure, water level or fluid pressure in containers.

Piezoresistive permeameter for tunnel civil engineeringUsing high-precision digital circuits, it outputs standard 485 digital signals or standard current signals, can simultaneously measure temperature values, and has anti Gan interference capabilityCharacteristics such as strong strength, long-term stability, and reliable sealing. Widely used in civil engineering fields such as architecture, railways, transportation, reservoirs, hydropower stations, dams, tunnels, etc.

Technical Specifications

1. Measurement range (KPa): 0-100, 200, 350, 700, 1000, 2000

2. Output: RS485 digital signal, standard MODBUS-RTU protocol or 4-20mA current signal

3. Power supply: 9-30VDC

4. Resolution: ≤ 0.1% F.S

5. Non linearity: ≤ 0.2% F.S

6. Non repeatability: ≤ 0.25% F.S

7. Lag: ≤ 0.25% F.S

8. Comprehensive error cha: ≤ 0.5% F.S

9. Temperature additional error cha: ≤ 0.05% F.S/℃

Piezoresistive pressure gaugeFeatures:

1Piezoresistive pressure gaugeHigh sensitivity, high accuracy, and good stability.

2Piezoresistive pressure gaugeDirectly outputting standard 485 digital signals or 4-20mA signals can use more acquisition devices, and pressure or water level signals can be directly output without conversion.

3. RS485 digital output signals can be transmitted over long distances without distortion, and are resistant to GAN interferenceStrong power.

Adopting IP68 waterproof structure, with good insulation performance and waterproof durability.