HLS 880 Detachable Submersible Level Probe

HLS 880 Detachable Submersible Level Probe

The SENSVISION HLS 880 is a compact submersible level probe designed to measure liquid level using a piezoresistive stainless steel sensor. Its detachable probe head connects to the cable assembly through a connector, enabling the transmitter head to be changed easily to simplify maintenance and stock management. With a 35 mm diameter, PP HT housing and IP68 ingress protection, it is suited to immersed level measurement duties in water, filtered sewage, fuels and oils.

Measurement ranges extend from 0 to 1 mH₂O up to 0 to 100 mH₂O, equivalent to nominal pressure ranges from 0.1 to 10 bar gauge. The HLS 880 is available with a 4 to 20 mA two wire output, or 0 to 20 mA and 0 to 10 V three wire output options. Its stainless steel 316L diaphragm, excellent linearity and low thermal effect support dependable hydrostatic level measurement in water treatment, storage and recycling applications.

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SKU HLS 880 Category

HLS 880 Submersible Level Probe Features

  1. Detachable Probe Head For Straightforward Maintenance
    The probe head is connected to the cable assembly by a connector and can be replaced easily, helping to support efficient maintenance and stock keeping.

  2. Wide Hydrostatic Level Measurement Range
    Available level ranges from 0 to 1 mH₂O to 0 to 100 mH₂O support measurement across shallow and deeper liquid installations.

  3. Choice Of Analogue Output Signals
    Choose a 4 to 20 mA two wire output, or a 0 to 20 mA or 0 to 10 V three wire output, to suit the installed control or monitoring system.

  4. Durable Materials For Wetted Service
    The probe combines a PP HT housing, stainless steel 1.4435 diaphragm, POM C protection cap and a choice of FKM or EPDM seals.

  5. Low Thermal Effect And Stable Performance
    The design provides a thermal tolerance band of up to ±0.75% of span for nominal pressures of 0.4 bar and above, with long term stability of up to ±0.1% of span per year.

  6. Fully Submersible IP68 Protection
    IP68 ingress protection supports reliable operation in immersed measurement applications.

  7. Cable And Seal Options For Application Suitability
    PVC, PUR and FEP cable options are available, together with FKM or EPDM sealing materials to help match the product to the medium and operating conditions.

  8. Optional Safety And Mounting Solutions
    An SIL 2 version for the 4 to 20 mA two wire output is available, along with mounting flanges, terminal clamps and an optional cable protection arrangement.

HLS 880 Applications For Immersed Liquid Level Monitoring

The HLS 880 is designed for hydrostatic level measurement in liquid storage, water management and process applications where a durable submersible probe and serviceable detachable head are beneficial. Its material options and analogue output choices make it suitable for monitoring a broad range of compatible water, sewage, fuel and oil duties.

Suitable applications include:

  • Groundwater level measurement

  • Stormwater systems

  • Drinking water systems

  • Water treatment plants

  • Filtered sewage monitoring

  • Process water recycling

  • Fuel storage tanks

  • Tank farms

  • Biogas plants

  • Oil level measurement

HLS 880 Detachable Level Transmitter Technical Specifications

SpecificationDetails
Product ModelHLS 880
BrandSENSVISION
Product TypeDetachable plastic submersible level probe with stainless steel sensor
Measuring PrinciplePiezoresistive hydrostatic pressure measurement
Nominal Level Ranges0 to 1, 1.6, 2.5, 4, 6, 10, 16, 25, 40, 60 and 100 mH₂O
Nominal Pressure Ranges0.1 to 10 bar gauge
Maximum Ambient Pressure At Housing20 bar
Standard Output4 to 20 mA, two wire
Optional Outputs0 to 20 mA, three wire, or 0 to 10 V, three wire
Supply Voltage For 4 To 20 mA8 to 32 VDC
Supply Voltage For SIL 2 Version14 to 28 VDC
Supply Voltage For Three Wire Outputs14 to 30 VDC
Accuracy For Nominal Pressure Below 0.4 BarUp to ±0.5% of span
Standard Accuracy For Nominal Pressure Of 0.4 Bar And AboveUp to ±0.35% of span
Optional Accuracy For Nominal Pressure Of 0.4 Bar And AboveUp to ±0.25% of span
Long Term StabilityUp to ±0.1% of span per year
Response TimeLess than 10 ms
Thermal Tolerance Band Below 0.4 BarUp to ±1% of span
Thermal Tolerance Band At 0.4 Bar And AboveUp to ±0.75% of span
Compensated Temperature Range0°C to 50°C
Permissible Medium, Electronics, Ambient And Storage TemperatureMinus 20°C to 80°C, subject to cable temperature range
Housing MaterialPP HT
Diaphragm MaterialStainless steel 1.4435, equivalent to 316L
Seal MaterialsFKM or EPDM
Protection Cap MaterialPOM C
Cable Sheath OptionsPVC, PUR or FEP
Cable Diameter7.4 mm
Electrical ConnectionShielded cable with integrated air tube for atmospheric pressure reference
Current Output LoadTwo wire: Rmax equals supply voltage minus minimum supply voltage divided by 0.02 A. Three wire: Rmax 500 ohms
Voltage Output LoadThree wire: Rmin 10 kΩ
Short Circuit ProtectionPermanent
Reverse Polarity ProtectionNo damage, but no function
Lightning ProtectionIntegrated for two wire version
Electromagnetic CompatibilityEmission and immunity according to EN 61326
Current ConsumptionMaximum 25 mA for current output, maximum 7 mA for voltage output
WeightApproximately 400 g without cable
Ingress ProtectionIP68
Optional Functional SafetySIL 2 according to IEC 61508 and IEC 61511, for 4 to 20 mA two wire version

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