Alnor HM680, Owner'S Manual, Page: 3 / 40

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CONTENTS
About This Manual..................................................................................................................... iii
Formatting and Typography ....................................................................................................iii
Technical Assistance—Help! ..................................................................................................iii
Chapter 1. Safety......................................................................................................................... 1
Safety Warnings...................................................................................................................... 1
Chapter 2. Introduction .............................................................................................................. 3
Instrument Description ............................................................................................................ 3
Unpacking ............................................................................................................................... 4
Chapter 3. Getting Started ......................................................................................................... 5
Keypad .................................................................................................................................... 5
Powering the Instrument ......................................................................................................... 6
Using the AC Adapter ....................................................................................................... 6
Installing the Batteries ....................................................................................................... 6
Instrument Start-up ................................................................................................................. 7
Zeroing the Manometer........................................................................................................... 7
Zeroing the Gauge Pressure Sensor ................................................................................ 7
Zeroing the Differential Pressure Sensor .......................................................................... 8
Connecting the Manometer to the Test Points........................................................................ 8
Attaching the Hoses to the Manometer ............................................................................. 8
Bleeding the Entrained Air ................................................................................................ 8
Attaching the Hoses to the Test Points ............................................................................. 9
Making Pressure Measurements ............................................................................................ 9
Accessing the Pressure Measurement Screen ................................................................. 9
Pressure Measurement Screen ........................................................................................ 9
Continuous Measurements ............................................................................................. 10
Making Flow Measurements ................................................................................................. 10
Accessing the Flow Measurement Screen ...................................................................... 10
Flow Measurement Screen ............................................................................................. 10
Making Temperature Measurements .................................................................................... 11
Connecting the Temperature Probe ................................................................................ 11
Setting Units of Measure....................................................................................................... 11
Storing Discrete Measurements............................................................................................ 11
Disconnecting the Manometer from the Test Points ............................................................. 12
Chapter 4. Main Menu............................................................................................................... 13
Zero Gauge Pressure............................................................................................................ 13
Select Cv/Kv Factor .............................................................................................................. 13
Select Fluid ........................................................................................................................... 13
Water............................................................................................................................... 13
Other ............................................................................................................................... 13
Edit Current Cv/Kv Factor ..................................................................................................... 14
Set K Factors-Offsets............................................................................................................ 14
dP K Factor ..................................................................................................................... 14
Gauge K Factor............................................................................................................... 14
Temperature Offset ......................................................................................................... 14
Set Date and Time ................................................................................................................ 14