Velleman ESR70 - Manual (Page 3)

Atlas ESR User Guide February 2008 – Rev 4
Page 3
Introduction
The Atlas ESR is an advanced instrument designed specifically
for the analysis of capacitor equivalent series resistance (in or
out of circuit). In addition it will, where possible, display the
capacitance of the device under test.
Summary Features:
•
ESR measurement range 0 to 20 Ω.
• ESR resolution as low as 0.01
Ω
• Capacitance range 1µF…22mF (22,000µF).
• Can be used for low-ohms resistance checking too.
• Built-in protection circuitry means risk of damage to the
unit due to residual charge is greatly reduced.
• Integrated controlled discharge circuitry reduces the need
for the user to manually discharge capacitors before test.*
• Use in or out of circuit for ESR measurement.
• Automatic and manual power-off.
* Note:
The discharge circuitry exists to ensure that a charged capacitor
is less likely to damage the unit. For example, if the capacitor
under test has a potential of a few tens of volts across it, the
charge is removed automatically.
It is the user’s responsibility to ensure that any dangerously
charged capacitors are safely discharged before connection to
the unit.