vbSeries
Fault Frequency Markers
Peaks, sidebands and harmonics can be labeled for easy identification by placing customizable marker...
What is the Accuracy of the Low Frequency (slow speed) Response of the vb Instrument?
QUESTION What is the accuracy of the low frequency (slow speed) response of the vb instrument? ANS...
Displaying your Instrument's Firmware and Hardware Information
QUESTION I've been asked to supply my distributor or Commtest with some advanced information about ...
Difficulty Measuring Low-Frequency, Large-Amplitude Displacement Signals
QUESTION I am having difficulty measuring low-frequency, large-amplitude displacement signals. What...
Upgrading Instrument Firmware (Proflashing)
From time to time Commtest will release new versions of instrument firmware. These firmware upgrades...
Overlap % Value - Explanation and Uses
QUESTION What is the purpose of the Overlap % value in the vb parameter settings? What value should...
Procedure to 'Wake up' an Instrument
Note: This procedure does not apply to the MMS2000 data logger. This product is no longer supported ...
No Computer Serial (COM) Port?
Applies to: vb1000, vb2000, vb3000, MMS3000, MMS6000 / Profiler
vb Instrument Anti-alias Filters
QUESTION What anti-alias filters does the vb instrument use on its analogue inputs, prior to digiti...
vb Instrument Measurement Time
QUESTION How long does the vb instrument take to measure? ANSWER The key to calculating how long ...
Tachometer will not Display an RPM Value
PROBLEM My tachometer does not give an RPM reading when the reflective tape is on the rotor OD. SO...
vb Instrument Processor Speed
QUESTION What is the processor speed of my instrument? ANSWER vb5™, vb6™, vb7™,...
Frequency Filtering of the vb Instrument's Overall rms Calculation
QUESTION Which low frequencies are filtered out of the instrument's overall rms calculation? SOLUT...
Recording Sound with a vb instrument and Microphone
QUESTION Can I use a microphone and record sound with my vb instrument? ANSWER Yes, this ca...
Getting Started - Setting up the Instrument and Software
In This Section Creating your first Database Installing Ascent Using a Parallel Port Security Dong...
Why Upgrade your vb Firmware or Operating System?
Firmware What is the Firmware? The firmware is the program that controls how the vb Instrument func...
Why Upgrade your vb Hardware?
In November 2004 Commtest Instruments released a new version of the vb instrument module (module num...
What are IP and NEMA Ratings and What Levels of Protection do they Offer?
QUESTION What protection is provided by the IP65 and NEMA 4X sealing ratings available with some Co...
What are the vbOnline Device's Dimensions?
QUESTION I would like to install the vbOnline device in a location with limited space. What are its...
Bently Panel Measurements
Applies to: vb5, vb6, vb7, vb8, vb1000, vb2000, vb3000