HLC 890 Aggressive Media Level Probe Features
Flush Ceramic Diaphragm For Cleaner Level Measurement
The flush mounted ceramic diaphragm is designed to resist the accumulation of solids and support easier cleaning in wastewater, viscous liquid and contaminated media applications.High Purity Ceramic Sensor For Chemical Resistance
The probe uses a polished 99.9% Al₂O₃ ceramic capacitive sensor that provides strong chemical and mechanical resistance for compatible aggressive liquids.Wide Hydrostatic Level Measurement Range
Nominal level ranges extend from 0 to 0.4 mH₂O to 0 to 100 mH₂O, allowing selection for shallow tanks, process vessels and deeper liquid storage applications.Flexible Housing And Seal Material Selection
Standard PP H housing and optional PVDF housing, together with FKM, EPDM and FFKM seal options, allow the HLC 890 to be selected for compatible media requirements.Reliable Signal Outputs For Control Systems
The standard 4 to 20 mA two wire output operates from 9 to 32 VDC. A 0 to 10 V three wire output is available for systems requiring a voltage signal.Stable Measurement Performance
Standard accuracy is up to ±0.35% of span, with an optional accuracy of up to ±0.25% of span. Long term stability is up to ±0.1% of span per year.Cable Options For Installation Conditions
PVC, PUR, FEP and TPE U cables are available with an integrated air tube for atmospheric pressure reference. The selected cable must be suitable for the intended temperature range.Adaptable Submerged Mounting Arrangements
The probe can be prepared with an R1 inch connection for mounting with plastic pipe. Assembly flanges and terminal clamps are also available for installation support.
HLC 890 Applications For Wastewater And Aggressive Liquid Level Monitoring
The HLC 890 is suited to continuous level measurement in facilities that handle wastewater, contaminated liquids and compatible acids or alkalis. Its flush ceramic diaphragm, plastic housing options and configurable cable and seal materials make it a practical choice where media resistance, reduced sensor fouling and robust submerged operation are required.
Suitable applications include:
Wastewater treatment plants
Sewage collection systems
Water recycling facilities
Leachate collection and dumpsite monitoring
Industrial effluent tanks
Process tanks containing compatible aggressive liquids
Acid storage vessels using compatible materials
Alkali storage vessels using compatible materials
Viscous liquid tanks
Contaminated water storage tanks
Open process vessels
Industrial level monitoring systems
HLC 890 Plastic Level Transmitter Technical Specifications
| Specification | Details |
|---|---|
| Product Model | HLC 890 |
| Brand | SENSVISION |
| Product Type | Plastic submersible level probe for aggressive media |
| Measuring Principle | Capacitive ceramic hydrostatic pressure sensor |
| Nominal Level Ranges | 0 to 0.4, 0.6, 1, 1.6, 2.5, 4, 6, 10, 16, 25, 40, 60 and 100 mH₂O |
| Nominal Pressure Ranges | 0.04 to 10 bar gauge |
| Overpressure Resistance | 2 to 25 bar, depending on selected nominal pressure |
| Maximum Ambient Housing Pressure | 10 bar |
| Standard Output Signal | 4 to 20 mA, two wire |
| Standard Supply Voltage | 9 to 32 VDC |
| Optional Output Signal | 0 to 10 V, three wire |
| Optional Supply Voltage | 12.5 to 32 VDC |
| Standard Accuracy | Up to ±0.35% of span |
| Optional Accuracy | Up to ±0.25% of span |
| Long Term Stability | Up to ±0.1% of span per year |
| Mean Response Time | Less than 200 ms |
| Maximum Response Time | 380 ms |
| Measuring Rate | 5 measurements per second |
| Turn On Time | 700 ms |
| Thermal Error | Up to ±0.1% of span per 10 K |
| Compensated Temperature Range | Minus 20°C to 80°C |
| PVDF Permissible Temperature | Minus 30°C to 60°C, subject to cable selection |
| PP H Permissible Temperature At Pressure Range To 10 Bar | 0°C to 25°C at maximum overpressure of 25 bar |
| PP H Permissible Temperature At Pressure Range To 2.5 Bar | 0°C to 50°C at maximum overpressure of 3.5 bar for 24 hours |
| Housing Material | PP H standard, PVDF optional |
| Diaphragm Material | Ceramic Al₂O₃, 99.9% |
| Seal Materials | FKM, EPDM or FFKM |
| Cable Sheath Options | PVC, PUR, FEP or TPE U |
| Cable Diameter | 7.4 mm |
| Housing Diameter | 45 mm |
| Ingress Protection | IP68 |
| Current Consumption | Maximum 21 mA |
| Weight | Approximately 320 g without cable |
| Electrical Protection | Permanent short circuit protection, reverse polarity protection and integrated lightning protection for two wire version |
| Electromagnetic Compatibility | In accordance with EN 61326 |
| Mounting Option | R1 inch preparation for mounting with plastic pipe |