23
2
Digital Voltmeter (AI-DVM)
Ai-DVM measures voltage, current, resistance, and diode capacitance as a fully functional
digital voltmeter (DVM) and as an integrated DVM to complement the following AI
software: CeCi (close interval), DCVG (direct current voltage gradient), and Periodic Survey
(annual/periodic survey).
You can view measurements either in the main window of AI-DVM or as a waveform graph.
Optional settings are available for measuring current interrupter on/off potentials and
operating in
GPS Sync
mode when using GPS-synchronized current interrupters.
Information in this chapter explains how to set up and use AI’s digital voltmeter, AI-DVM.
Topics include:
•
Safety Precautions (page 23)
•
Quick Start (page 24)
•
DVM Graph Overview (page 27)
•
Data Logger Overview (page 28)
•
Shortcut Keys (page 29)
Safety Precautions
Observe the following safety precautions when using AI-DVM:
•
Follow safety procedures for the equipment being tested. Inspect test leads for
damaged insulation or exposed metal. Check test lead continuity. Damaged leads
should be replaced.
•
To avoid electrical shock and damage to the Allegro, do not use the Allegro when
working with voltages greater than that supported by the DAQ (data acquisition)
card or measuring current, except across a shunt.
•
To avoid electrical shock and damage to the Allegro, remove test leads before
replacing the Allegro battery
or
connecting to a desktop or laptop computer. Set
up the Allegro with the correct test function and voltage range.
Summary of Contents for Allegro CX
Page 1: ...American Innovations Allegro CX Version 4 3 2 User Guide...
Page 27: ...AI Allegro CX User s Guide Getting Started 21 Notes...
Page 28: ...AI Allegro CX User s Guide 22 Getting Started...
Page 37: ...AI Allegro CX User s Guide Digital Voltmeter AI DVM 31 Notes...
Page 38: ...AI Allegro CX User s Guide 32 Digital Voltmeter AI DVM...
Page 54: ...AI Allegro CX User s Guide 48 Close Interval Survey CeCi Notes...
Page 67: ...AI Allegro CX User s Guide DC Voltage Gradient DCVG 61 Notes...
Page 68: ...AI Allegro CX User s Guide 62 DC Voltage Gradient DCVG...
Page 80: ...AI Allegro CX User s Guide 74 Annual Periodic Survey Periodic Survey Notes...
Page 84: ...AI Allegro CX User s Guide 78 Recommendations for Interrupted On Off Settings Notes...
Page 92: ...AI Allegro CX User s Guide 86 FAQs...
Page 93: ...AI Allegro CX User s Guide FAQs 87 Notes...
Page 94: ...AI Allegro CX User s Guide 88 FAQs...
Page 105: ...AI Allegro CX User s Guide Utility Software 97 Notes...
Page 106: ...AI Allegro CX User s Guide 98 Utility Software...
Page 114: ...AI Allegro CX User s Guide 106 GPS Receivers Notes...