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Area Velocity Probe Sensor Assembly with Hub

Area Velocity Probe Sensor Assembly with Hub
Product #: 77074-100
Unit Price Contact Hach

Single point calibration - zero cal only

Robust Sensor

Streamlined Design

Minimal Sensor Fouling

Oil-filled Submerged AV sensor models are great solution for monitoring sites that are susceptible to fouling of the pressure transducer. The cavity is filled with high-viscosity silicon oil to reduce the collection of sand, silt and grit on the pressure transducer. Use the non-oil-filled cover plate model in sites where the pipe could run dry. Either way, we’ve thought about the little details that will reduce your maintenance or lost data hassles.

Greater Directivity

Specifications

Accuracy 2: VELOCITY MEASUREMENT: ±2% of reading or 0.05 fps** **Uniform velocity profile, known salinity, positive flow. Field performance is site specific.
Accuracy 3: LEVEL MEASUREMENT: ±0.16% full scale ±1.5% of reading at constant temp (±2.5ºC) ±0.20% full scale ±1.75% of reading from 0 to 30ºC (32 to 86ºF); ±0.25% full scale ±2.1% of reading from 0 to 70ºC (32 to 158ºF)
Accuracy 4: Velocity-Induced Depth Error Compensated based on flow velocity
Allowable Level: Standard: 10.5 m (34.5 ft)
Extended: 31.5 m (103.5 ft)
Cable: Urethane sensor cable with air vent
Cable Length: 30.48
Compatible Instruments: 920, 930, 930T, 950, 900 Max Samplers, and AV9000 Interface Analyzer Module
Depth: Operating Unit: Typical Minimum Operating Depth 2 cm
Dimensions (H x W x D): 23 mm x 38 mm x 135 mm
Level Accuracy: ±0.16% full scale ±1.5% of reading at constant temp (±2.5ºC)
±0.20% full scale ±1.75% of reading from 0 to 30ºC (32 to 86ºF)
±0.25% full scale ±2.1% of reading from 0 to 70ºC (32 to 158ºF)
Level Measurement Method: Differential pressure transducer with stainless steel diaphragm and atmospheric pressure reference
Level Range: Standard: 0–3 m Extended: 0–9 m
Material: Noryl® outer shell with epoxy potting within
Measurement method: LEVEL: Pressure transducer with stainless steel diaphragm
Oil or Non-Oil Filled: Oil filled with connector
Operating temperature range: 0 - 70 °C
Recommended Range: -1.52 to 6.10 m/s (-5 to 20 ft/sec)
Special Feature: Oil Filled, 100 ft cable
Typical Minimum Operating Depth: 2 cm (0.8cm)
Velocity Accuracy: ±2% of reading or 0.05 fps**
**Uniform velocity profile, known salinity,
positive flow. Field performance is site specific.
Velocity-Induced Depth Error: Compensated based on flow velocity
Velocity Measurement Method: Doppler ultrasonic;
twin 1 MHz piezoelectric crystals
Warranty: 12 months