Name: Commtest Instruments vbBalancer
Brand: Commtest Instruments
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Section 4: Balancing Rotors

• The newest balance job is highlighted at the top of the

column. Press to display the selected recording or use

the left-hand up/down arrow keys to select another.

• In the Balancing Menu press View and Save to see the

Balancing Report.

Table of Contents3
Section 1: Introduction9
Standard Features9
Standard Kit Items10
Instrument Capabilities11
Precautions13
Hazardous Locations15
Instrument Connections17
Front Panel Buttons18
LED Indicators19
Charging the Battery Pack20
Battery Features20
Removing the Battery Pack21
Operating Overview22
- Balancing22
- Onsite Analysis23
Section 2: Instrument Basics24
Powering On/Off24
Navigating Menus25
Returning to a Previous Menu25
Using Navigation Keys and Icons26
Selecting an Option from a List27
Canceling an Option29
Displaying Hint Labels and Detailed Help29
Displaying Alternative Options30
Entering Alphanumeric Characters31
Entering Punctuation, Spaces and Special Characters33
Using Other Icons34
Section 3: Using Sensors36
Supported Sensor Types36
Connecting Sensors to the Instrument37
Mounting Sensors38
Setting up the Accelerometer39
- Permanent Mounting40
Setting up the Tachometer40
Tachometer Signal from a Keyphasor42
Section 4: Balancing Rotors43
Methods for Balancing Rotors43
The Balancing Process44
Tips for Balancing45
The Tachometer45
Suggested Trial Weight Mass and Location46
Manually Entering Balancing Information46
Setting up a Balancing Job47
- Balance Planes and Weight Positions48
  - Balance Planes48
  - Weight Position (Reference Mark)48
- Sensors49
  - CH Position50
- Averages52
- Machine Information52
  - Rotor Weight, Diameter and Speed52
  - Reference Mark52
- Weight Orientation53
- Tach Trigger53
- Weight Lin Dist53
- Store Units54
Combining Trim Weights54
Reviewing Previous Balancing Jobs55
Section 5: Balancing Walk-Through57
Step 1. Set up a New Balance Job57
Step 2. Take an Initial Reading58
Step 3. Take a Trial Reading59
Step 4. Balance the Rotor62
Step 5. Perform Trim Balancing63
Step 6. Viewing and Saving Balancing Jobs65
Section 6: Analyzing Measurements Onsite66
Tips for Taking Measurements66
Walk-Through: Taking Measurements67
Working with Charts70
Analyzing Measurements70
- Using Cursors71
- Zooming73
Viewing Multiple Charts74
Changing Chart View74
Setting the y Axis (Amplitude) Scale75
Amplitude Display Units76
Setting the RPM77
Viewing Orders78
Viewing Revolutions79
Saving Measurements79
Section 7: Setting Measurement Options81
Setting Measurement Units and Spectrum Scaling81
Setting Measurement Parameters83
Creating Your Own Parameter Sets84
Assigning Sensors to Channels85
Explaining Spectrum Parameters86
- Fmax86
- Spectral Lines87
- Fmin87
- Tach Trigger88
- Averaging88
  - Average Overlap88
Explaining Waveform Parameters88
- Equivalent Fmax88
- Number of Samples88
- Duration89
Section 8: Measurement Types and Their Uses90
Spectrum90
Waveform91
Tachometer Display91
Bump Test92
Coast-Down/Run up93
Taking Multi-Channel Simultaneous Measurements94
- Setting up Sensors and Channels94
- Saving Multi-Channel Measurements95
Section 9: Taking Recordings97
Walk-Through: Taking Recordings97
Taking Individual and Multiple Recordings98
Saving Recordings99
Reviewing Recordings99
Deleting Recordings101
Attaching Notes101
Section 10: Creating, Editing and Deleting Items102
Storage Capacity and Recording Volume102
How Are Recordings Organized and Stored102
Working with Folders104
- Creating a Folder104
- Renaming a Folder104
- Deleting a Folder104
- Restoring a Deleted or Over-Written Folder104
Working with Machines105
- Creating Machine Structures105
- Creating Parameter Sets106
- Adding Structures to Existing Machines107
- Copying Machine Structures108
- Renaming Machine Structures108
- Deleting Machine Structures109
Working with Sensors109
- Defining and Editing Sensors109
- Using the Bias Voltage Check111
- Deleting Sensors112
Working with Notes113
- Creating Notes113
- Editing Notes113
- Attaching Notes113
- Viewing Notes114
- Removing Notes114
- Deleting a Note Permanently114
Deleting All Recordings in a Folder115
Deleting All Stored Information115
Section 11: Utilities116
Setting the Date and Time116
- Adjusting the Date Format116
Selecting Your Local Timezone117
Adjusting Sound Volume117
Set the Instrument Language117
Printing Directly to a Network Printer118
Adjusting Screen Contrast119
Turning the Backlight On/Off119
Recharging the Instrument120
Estimating Remaining Operating Time120
Conserving Battery Power120
- Setting Backlight Timeout121
- Setting Sleep Mode Timeout121
- Setting Complete Powerdown Timeout122
Checking How Much Memory Is Available122
Freeing Instrument Memory122
Backing up the Instrument Database123
Upgrading Instrument Firmware (Proflashing)124
Section 12: Troubleshooting126
Contacting Technical Support126
Resetting an Unresponsive Instrument126
Network Communications Problems126
Ethernet Connection Lost in Windows Vista128
Appendix: Specifications130
Vbbalancer130
Vbbalancer132
Index134

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Commtest Instruments vbBalancer Specifications

General

Brand	Commtest Instruments
Model	vbBalancer
Category	Measuring Instruments
Language	English

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