Micro Ohmmeter – DO7 plus – Overview

The DO7Plus is a 10A micro ohmmeter, suitable for applications within aerospace, utilities, cable or machine manufacturers or where a cooling curve is required to plot peak resistance. Sealed in an IP67 case, it is ruggedly constructed to ensure durability. This micro ohmmeter has a display length of 60,000 counts and auto averaging of forward and reverse measurement removes thermal emf differences. The DO7Plus micro ohmmeter has built in rechargeable batteries which will provide up to 1 hour of continuous use at 10A, and up to 20 hours at all other ranges. The data log memory using FRAM technology offers unlimited read/write cycles and over 10 years of data retention, without relying on internal batteries.

DO7 Plus Micro Ohmmeter – Features

• Backlit LCD graphic panel with programmable timer for battery conservation
• Qwerty Keyboard
• Temperature compensation via PT100
• Coefficients for Copper and Aluminum
• Display length of 60,000 counts
• Auto Averaging with a forward reverse measurement (removes thermal emf diff)
• Log Memory can be plotted to calculate peak resistance value at t=0
• Memory 1000 time stamped readings
• Software included to view data via download with USB, RS232
• Ruggedly constructed case IP 67 when lid is closed a d IP53 when lid is open.
• On-screen, real-time graphical plotting cooling curve facilities with peak resistance value calculator
• Reading rate of 2 readings per second
• Measuring ranges from 6mΩ – 6kΩ
• Resolution 100nΩ on 6mΩ range
• Single pulse measurement for fast resistance tests
• Continuous measurement current for inductive tests
• Full test lead continuity testing and diagnostic display
• Multilingual – display available in English, French, German, Spanish or Italian