Hach AV9000, User Manual

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Table of contents
Specifications on page 3 Operation on page 14
General information on page 4 Maintenance on page 15
Installation on page 7 Replacement parts and accessories on page 19
Specifications
Specifications are subject to change without notice.
Specifications—Submerged area velocity sensor
Performance will vary depending on channel size, channel shape and site conditions.
Velocity measurement
Method Doppler ultrasonic
Transducer type: Twin 1 MHz piezoelectric crystals
Typical minimum depth for
velocity 2 cm (0.8 in.)
Range -1.52 to 6.10 m/s (-5 to 20 ft/s)
Accuracy ± 2% of reading (in water with uniform velocity profile)
Level measurement
Method Pressure transducer with stainless steel diaphragm
Accuracy (static)
• ±0.16% full scale ±1.5% of reading at constant temp (±2.5 ºC)
• ±0.20% full scale ±1.75% of reading from 0 to 30 ºC (32 to 86 ºF)
• ±0.25% full scale ±2.1% of reading from 0 to 70 ºC (32 to 158 ºF)
Velocity-induced depth error Compensated based on flow velocity
Level range
• Standard: 0–3 m (0–10 ft)
• Extended: 0–9 m (0–30 ft)
Allowable level
• Standard: 10.5 m (34.5 ft)
• Extended: 31.5 m (103.5 ft)
General attributes
Air intake Atmospheric pressure reference is desiccant protected
Operating temperature 0 to 70 ºC (32 to 158 ºF)
Level compensated temperature
range 0 to 70 ºC (32 to 158 ºF)
Material Noryl
®
outer shell with epoxy potting within
Power consumption Less than or equal to 1.2 W @ 12 VDC
Cable Urethane sensor cable with air vent
Connector Hard anodized, satisfies Military Spec 5015
Cable lengths available
• Standard: 9, 15, 23 and 30.5 m (30, 50, 75, 100 ft)
• Custom: 30.75 m (101 ft) to 76 m (250 ft) maximum
English 3