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This series of anti‑sediment & anti‑silt submersible level transmitters is optimized for sewage, sludge and silt working conditions. Measuring range covers 0‑3 ~ 0‑100 mH₂O. It supports 2‑wire 4‑20 mA, 3‑wire voltage outputs and digital interfaces HART, RS485, I2C.
Compliant with IEC61000‑4‑5 Level‑4 lightning‑proof standard, the transmitter provides outstanding surge and EMI anti‑interference capability. Accuracy grades 1%FS / 0.5%FS /0.25%FS /0.1%FS are optional subject to measuring range. Operating temperature spans ‑20℃~85℃ (extended‑40℃~125℃ optional). It passes IEC 60068‑2‑6 vibration and IEC 60068‑2‑27 mechanical‑shock tests.
Housing material includes 304SS, 316L, TC4; wetted diaphragm is Al₂O₃ ceramic. Cable options: PUR, PE, PTFE, PVC. Designed for long‑term submerged deployment in sewage tanks, sediment pools and silt‑rich water environment.
Specification
| Item | Specification |
|---|---|
| Measuring Range | 0‑3, 0‑5, 0‑10, 0‑20, 0‑50, 0‑100 mH₂O |
| Overload Pressure | 1.5×FS |
| Output Signal | 2‑wire:4‑20mA3‑wire:0‑10V,0‑5V,1‑5V,0.5‑4.5V(ratiometric)Digital:4‑20mA+HART,4‑20mA+RS485,RS485,I2C |
| Power Supply | 4‑20mA:DC8‑30VVoltage:DC8‑30V /14‑30VRatiometric 0.5‑4.5V:5V±10%I2C:DC3‑5VHART:DC12‑30V |
| Accuracy | Range≥1mH₂O:std 1%FS, opt 0.5%FSRange≥3mH₂O:std 0.5%FS,opt 0.25%FSRange≥10mH₂O:std 0.5%FS,opt 0.25%FS,0.1%FSComplies with JJG860, JJG882 |
| Operating Temperature | ‑20℃~85℃(opt‑40℃~125℃) |
| Compensation Temp | ≤10mH₂O：0~50℃；＞10mH₂O：0~70℃(opt‑10~80℃) |
| Storage Temperature | ‑40℃ ~125℃ |
| Temperature Drift | Std:±0.03~0.05%FS/℃；Opt:±0.02%FS/℃ |
| Long‑term Stability | ≤0.2%FS/year (@0.5%FS) |
| Response Time | Boot‑up:100ms(opt10ms); Response:10ms(opt1ms) |
| Vibration Resistance | 10g, IEC 60068‑2‑6 |
| Shock Resistance | 500g, IEC 60068‑2‑27 |
| Service Life | 10 million pressure cycles |
| Diaphragm Material | Al₂O₃ Ceramic |
| Housing Material | Std:304SS; Opt:316L, TC4 |
| Cable Material | Std:PUR; Opt:PE,PTFE,PVC |
| Protection | IEC61000‑4‑5 Level‑4 lightning & surge protection |
Ordering Guide
| Code | Description |
|---|---|
| Series | 323:Sediment type；325:Sewage special；327:Silt flange type |
| Output | S1:4‑20mA；S2:0.5‑4.5V；S3:0‑5V；S4:0‑10V；S5:I2C；S6:RS485 |
| Power supply | U1:8‑30VDC；U2:5VDC；U3:3.3VDC |
| Housing material | 30‑304SS；31‑316L；32‑TC4；33‑PTFE；34‑PVDF |
| Mounting | C0:Put‑in submersible type |
Water works & water plant
Sewage treatment system, sewage tanks and sedimentation pools
Deep wells, dams and reservoirs
Flood‑control and irrigation monitoring
Liquid‑level measurement for media containing sediment, sludge and silt
Short list for web sidebar：Water plant, sewage treatment, deep well, dam, flood‑control, irrigation, sediment & silt‑containing liquid monitoring
