HLC 370H HART Level Probe Performance Features
HART Communication For Flexible Configuration
HART communication supports adjustment of electronic damping from 0 to 100 seconds, offset up to 80% of span and span turndown up to 10:1, depending on the selected nominal pressure range.Capacitive Ceramic Level Measuring Element
The ceramic Al₂O₃ 99.9% diaphragm provides robust hydrostatic measurement performance and high resistance to overpressure, making it suitable for low level and demanding liquid applications.Wide Hydrostatic Measuring Range
The HLC 370H is available with nominal ranges from 0 to 0.6 mH₂O up to 0 to 200 mH₂O, covering shallow vessels, tanks, wells and deeper storage applications.Reliable Measurement Accuracy
For nominal pressures of 1 bar and above, the transmitter provides accuracy of up to ±0.1% FSO at turndown ratios up to 5:1. For nominal pressures from 160 mbar, accuracy is up to ±0.2% FSO at turndown ratios up to 5:1.Stable Long Term Level Monitoring
Long term stability is specified at up to ±(0.1 × turndown)% FSO per year under reference conditions, helping support consistent process measurement over extended service periods.Durable Construction For Submerged Use
The stainless steel 316L housing, POM C protection cap and IP68 protection rating make the HLC 370H well suited to continuous submerged operation in harsh industrial and environmental installations.Adaptable Cable And Seal Selections
PVC, PUR, FEP and TPE U cable options are available, together with FKM, FFKM and EPDM seal materials, enabling the transmitter to be selected for compatible media and installation temperatures.Intrinsic Safety And Installation Options
An Ex ia version is available for specified gas and dust hazardous areas. Optional stainless steel pipe mounting, flange versions and accessories provide further installation flexibility.
HLC 370H Applications For Wastewater And Industrial Liquid Level Control
The HLC 370H is designed for continuous liquid level monitoring in applications where water quality, process conditions or media viscosity can make conventional level instrumentation difficult to use. Its ceramic sensing diaphragm, HART configuration capability and rugged submerged construction make it suitable for water, wastewater, fuel and compatible industrial liquid installations.
Suitable applications include:
Groundwater level measurement
Rain spillway basins
Wastewater treatment facilities
Sewage collection systems
Water recycling processes
Open tanks with low filling heights
Fuel storage tanks
Tank farm level monitoring
Biogas plant vessels
Industrial water tanks
Contaminated liquid storage
Higher viscosity liquid applications
HLC 370H Hydrostatic Level Transmitter Technical Specifications
| Specification | Details |
|---|---|
| Product Model | HLC 370H |
| Brand | SENSVISION |
| Product Type | Stainless steel hydrostatic level transmitter with HART communication |
| Measuring Principle | Capacitive ceramic sensor |
| Diaphragm Material | Ceramic Al₂O₃ 99.9% |
| Nominal Level Ranges | 0 to 0.6, 1.6, 4, 10, 20, 50, 100 and 200 mH₂O |
| Nominal Pressure Ranges | 0.06, 0.16, 0.4, 1, 2, 5, 10 and 20 bar |
| Overpressure Resistance | 2 to 45 bar, depending on selected nominal pressure |
| Maximum Ambient Housing Pressure | 40 bar |
| Output Signal | 4 to 20 mA, two wire, with HART communication |
| Standard Supply Voltage | 12 to 36 VDC |
| Intrinsically Safe Supply Voltage | 14 to 28 VDC |
| Rated Supply Voltage | 24 VDC |
| Accuracy At PN ≥ 1 Bar | Up to ±0.1% FSO at turndown up to 5:1 |
| Accuracy At PN ≥ 160 mbar | Up to ±0.2% FSO at turndown up to 5:1 |
| Maximum Turndown | Up to 10:1 for PN ≥ 160 mbar, up to 3:1 for PN below 160 mbar |
| Long Term Stability | ≤ ±(0.1 × turndown)% FSO per year |
| Electronic Damping | Adjustable from 0 to 100 seconds |
| Offset Adjustment | Adjustable from 0 to 80% FSO |
| Mean Response Time | 140 ms without electronic damping |
| Maximum Response Time | 380 ms |
| Mean Measuring Rate | 7 measurements per second |
| Turn On Time | 850 ms |
| Thermal Tolerance Band | ≤ ±1% FSO |
| Compensated Temperature Range | Minus 20°C to 80°C |
| Permissible Medium, Electronics, Ambient And Storage Temperature | Minus 25°C to 85°C |
| Housing Material | Stainless steel 1.4404, equivalent to 316L |
| Seal Materials | FKM, FFKM or EPDM |
| Protection Cap Material | POM C |
| Cable Options | PVC, PUR, FEP or TPE U |
| Cable Diameter | 7.4 mm |
| Ingress Protection | IP68 |
| Current Consumption | Maximum 21 mA |
| Weight | Approximately 400 g, excluding cable |
| Housing Diameter | 39.5 mm |
| Electrical Protection | Permanent short circuit protection and reverse polarity protection |
| Electromagnetic Compatibility | In accordance with EN 61326 |
| Optional Explosion Protection | Ex ia for specified gas and dust hazardous zones |
| Available Installation Options | Standard probe, stainless steel pipe preparation and flange version |