Product Overview - Hach Flo-Dar Sensor Manuel D'utilisation De Base

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  • FRANÇAIS, page 30
residential area is likely to cause harmful interference, in which case the user will be required to
correct the interference at their expense. The following techniques can be used to reduce
interference problems:
1. Disconnect the equipment from its power source to verify that it is or is not the source of the
interference.
2. If the equipment is connected to the same outlet as the device experiencing interference, connect
the equipment to a different outlet.
3. Move the equipment away from the device receiving the interference.
4. Reposition the receiving antenna for the device receiving the interference.
5. Try combinations of the above.
Flo-Dar Sensor—Part number list:
Standard U-Sonic 890004901, 890004902; Standard U-Sonic I.S. (Intrinsic Safety) 890004801,
890004802, 890004803; Long-Range U-Sonic 890005201, 890005202, 890005206; Long-Range U-
Sonic I.S. (Intrinsic Safety) 890004804, 890004805, 890004806; Remote Long-Range U-Sonic
890005204, 890005205, 890005207: Remote Long-Range U-Sonic I.S. (Intrinsic Safety) 890004807,
890004808, 890004809
The part numbers above are service only and cannot be purchased – reference only for wireless
certifications.

4.3 Product overview

The Flo-Dar sensor measures the flow velocity and liquid depth in open channels using radar and
ultrasonic technology. The unit is made to withstand submersion during surcharge conditions. The
optional surcharge velocity sensor supplies velocity measurements during surcharge conditions.
Figure 1
shows the configuration of a Flo-Dar system in a non-hazardous location.
Theory of operation information and ordering information for replacement parts are available in the
expanded user manual on the manufacturer's website (http://www.hach.com).
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