Hach Flo-Dar - Specifications; Flo-Dar Sensor Specifications

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Section 1 Specifications
Specifications are subject to change without notice
Flo-Dar sensor
Dimensions (W x L x D) 160.5 x 432.2 x 297 mm (6.32 x 16.66 x 11.7 in.); with SVS, D=287 mm (15.2 in.)
Weight 4.8 kg (10.5 lb)
Enclosure IP68 waterproof rating, polystyrene
Operating temperature –10 to 50 °C (14 to 122 °F)
Storage temperature –40 to 60 °C (–40 to 140 °F)
Altitude 4000 m (13,123 ft) maximum
Power requirements Supplied by FL900 Series Logger, Flo-Logger or Flo-Station
Interconnecting cable (disconnect at
both sensor and logger ends)
Polyurethane, 0.400 (±0.015) in. diameter
IP68
Standard length: 9 m (30 ft); maximum length: 305 m (1000 ft)
Depth measurement
Method: Ultrasonic
Standard operating range from Flo-Dar housing to liquid: 0 to 152.4 cm (0 to
60 in.)
Optional extended operating range from transducer face to liquid: 0 to 6.1 m
(0 to 20 ft) (with 43.18 cm (17 in.) deadband), temperature compensated
Accuracy: ±1% ±0.25 cm (±0.1 in.)
Surcharge depth measurement
Method: Piezo resistive pressure transducer with stainless steel diaphragm
Auto zero function maintains zero error < 0.5 cm (0.2 in.)
Range: 3.5 m (138 in.); overpressure rating: 2.5 x full scale
Velocity measurement
Method: Radar
Range: 0.23 m/s to 6.10 m/s (0.75 to 20 ft/s)
Frequency Range: 24.075 to 24.175 GHz, 15 mW (EIRP) max.
Accuracy: ±0.5%; ±0.03 m/s (±0.1 ft/s)
Certification
The Flo-Dar Transmitter is certified to the following requirements:
- Transmitter type: Field Disturbance Sensor
- Frequency: 24.125 GHz - Doppler pulse
- Maximum rated power output: 128 dbuV (average) @ 3 meters
Certified to:
FCC Part 15.245: FCC ID: VIC-FLODAR24
Industry Canada Spec. RSS210. v7: IC No.: 6149A-FLODAR24
Use of this device is subject to the following conditions:
1 There are no used serviceable items inside this device.
2 The user must install this device in accordance with the supplied installation
instructions and must not modify the device in any manner whatsoever.
3 Any service involving the transmitter must only be performed by
Hach Company.
4 The user must ensure that no one is within 20 cm of the face of the radar
transmitter when operating.
Flow measurement
Method Based on continuity equation
Accuracy
± 5% of reading typical where flow is in a channel with uniform flow conditions
and is not surcharged, ± 1% full scale max.