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Safety Precautions .................................................................................................................................................... 5
Specifications ............................................................................................................................................................ 9
......................................................................................................................................................... 13
1.1 Items Required for Installing and Using the Flow Meter ................................................................................... 15
1.2 Optional Accessories for Use with the Flow Meter............................................................................................ 15
1.3 Planning for Success: Considerations for Installing Your Flow Meter ............................................................... 15
1.3.1 Choosing the Proper Site ........................................................................................................................ 15
1.3.2 Dealing with Difficult Sites ....................................................................................................................... 16
1.3.3 Using the Proper Batteries ...................................................................................................................... 16
1.3.4 Mounting the Flow Meter with the Proper Orientation ............................................................................. 16
1.3.5 Preventing Damage to the Flow Meter in a Harsh Environment.............................................................. 16
1.4 Choosing the Appropriate Meter and Sensor Combination .............................................................................. 16
1.4.1 Types of Sensors ..................................................................................................................................... 17
2.1 Required Software ............................................................................................................................................ 19
2.2 Programming and Analysis Options.................................................................................................................. 19
2.3 RS232 Serial Port (All Models) ......................................................................................................................... 19
2.4 Modem Communications (Models 920 and 930 Only) ...................................................................................... 21
2.5 Sampler Receptacle (Models 920 and 930 Only) ............................................................................................. 21
2.5.1 Sampler Receptacle Pin Descriptions ..................................................................................................... 21
2.5.2 Logging Sample Information on Models 920 and 930 from a Hach Sampler .......................................... 22
4.1 Battery Information............................................................................................................................................ 31
4.1.1 Installing Batteries ................................................................................................................................... 31
4.1.2 Replacing Batteries in Models 910 and 920 ............................................................................................ 31
4.1.3 Replacing Batteries in Model 930............................................................................................................ 31
4.1.4 Battery-Life Estimates ............................................................................................................................. 32
4.2 Mounting the Flow Meter................................................................................................................................... 33
4.3 Connecting Sensors to the Flow Meter ............................................................................................................. 34
4.3.1 Ultrasonic Level Sensor........................................................................................................................... 34
4.3.2 Level/Velocity Sensor .............................................................................................................................. 34
4.3.3 Rain Gauge ............................................................................................................................................. 35
5.1 Sensor Calibration............................................................................................................................................. 37
5.1.1 Velocity Sensor Calibration...................................................................................................................... 37
5.1.2 Submerged Sensor Calibration ............................................................................................................... 37
GettingStartedTOC.fm
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