Introduction - Peak Electronics Equivalent Series User Manual

ESR70 User Guide

Introduction

The Peak Atlas ESR70 is an advanced instrument designed
specifically for the analysis of capacitor equivalent series resistance
(in or out of circuit). Where possible, capacitance is also displayed.
Summary Features:
ESR range of 0 to 40 with resolution as low as 0.01.

Integrated controlled discharge circuitry reduces the need for

the user to manually discharge capacitors before test (see note).
Use in or out of circuit for ESR and low-ohms resistance

measurement.
Audible alerts for quick user-feedback of ESR test status.

 Automatic analysis start when a component is detected.
 Automatic and manual power-off.
Gold Features:
 Enhanced capacitance range of 0.3µF to 90,000µF.
Capacitance over 125µF is now measured at 10x higher current

(20mA instead of 2mA) for rapid measurement.
 New triple-slope measurement method reduces the influence of
parallel resistance when measuring capacitance in-circuit.
 Improved in-circuit detection.
Improved ESR measurement with less influence from lead

inductance.
Improved user-options system.

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.
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November 2021 – Rev 14