Commtest Instruments vbBalancer User Manual

Section 4: Balancing Rotors
41
• Press Balance Planes then use the arrow keys to
highlight the number of balance planes to use.
• Press to select. This will display the Balance Weight
Setup Menu.
• From the Balance Weight Setup Menu press Plane A
Weight Position then use the arrow keys to highlight your
choice and press to select.
• If you select circumference arc or # fixed positions this will
open the Circumference or # Fixed Position sub-menus
where you need to specify the rotor circumference or the
number of fixed positions. Enter the required value then
press
Note: The circumference units used (inches or mm) are set in the
Balance Setup screen by pressing Weight Lin Dist then
Linear Distance.
• If you have selected dual plane balancing press Plane
B Weight Position and repeat the previous steps for Plane
B.
• Press repeatedly if necessary to return to the Balance
Setup Menu from where you will specify your sensor
settings. If you selected dual plane balancing, pressing
will automatically take you to the Balance Sensor Setup
Menu.
# Sensors
This option lets you specify the number and type of sensors you are
using. This menu also contains an option that allows the instrument
to recommend where to place trial weights (optional).
• If the Balance Sensor Setup Menu is not already displayed
press
# Sensors from the Balance Setup Menu then
select the number of sensors required and press

Commtest Instruments vbBalancer Specifications

General

Channels	2
Frequency Range	0.5 Hz to 20 kHz
Display	Color LCD
Storage Temperature	-20°C to 60°C
Weight	1.5 kg
RPM Range	60 RPM to 60, 000 RPM
Battery Life	8 hours continuous use
Operating Temperature	0°C to 50°C

Summary

Section 1: Introduction

Standard Features

Lists the main hardware and software capabilities of the instrument.

Instrument Capabilities

Precautions

Outlines safety warnings and handling recommendations for instrument use.

Hazardous Locations

Describes conditions for using the instrument in potentially explosive environments.

Instrument Connections

Explains the various input/output ports and their functions on the instrument.

Section 2: Instrument Basics

Powering On/Off

Navigating Menus

Explains how to move through the instrument's menu system.

Section 3: Using Sensors

Supported Sensor Types

Lists compatible sensors and their measurement capabilities.

Connecting Sensors to the Instrument

Explains how to connect sensors using BNC and LEMO connectors.

Mounting Sensors

Setting up the Accelerometer

Details the process for connecting and positioning an accelerometer.

Setting up the Tachometer

Section 4: Balancing Rotors

Methods for Balancing Rotors

Describes techniques for balancing rigid rotors.

The Balancing Process

Outlines the steps involved in rotor balancing operations.

Setting up a Balancing Job

Guides through configuring parameters for a new balancing job.

Balance Planes and Weight Positions

Explains how to define balancing planes and reference marks.

Section 5: Balancing Walk-through

Step 1. Set Up a New Balance Job

Guides setting initial parameters for a balancing job.

Step 2. Take an Initial Reading

Instructions for performing the first imbalance measurement.

Step 3. Take a Trial Reading

Details on applying and measuring with a trial weight.

Step 4. Balance the Rotor

How to apply correction weights based on calculations.

Step 5. Perform Trim Balancing

Steps to further reduce residual imbalance.

Step 6. Viewing and Saving Balancing Jobs

How to review results and save balancing data.

Section 7: Setting Measurement Options

Setting Measurement Units and Spectrum Scaling

Setting Measurement Parameters

Creating Your Own Parameter Sets

Assigning Sensors to Channels

Links physical sensors to specific instrument input channels.

Section 10: Creating, Editing and Deleting Items

Working with Folders

Working with Machines

Creating Machine Structures

Creating Parameter Sets

Defining and Editing Sensors

Process for configuring and modifying sensor settings.

Working with Sensors

Section 11: Utilities

Backing Up the Instrument Database

Procedure for creating a backup copy of instrument data.

Upgrading Instrument Firmware (Proflashing)

Steps to update the instrument's operating software.

Section 12: Troubleshooting

Contacting Technical Support

Information on how to reach Commtest support for assistance.

Resetting an Unresponsive Instrument

How to recover from instrument software freezes or lockups.

Network Communications Problems