Digi Di-166 Service Manual ((top)) Guide

Corrupt calibration EEPROM or failed calibration procedure entry.

This section lists acceptable tolerances for linearity, repeatability, and temperature drift. It also describes how to perform a “power-on self-test” (POST) to verify the CPU and ADC are functioning. Digi Di-166 Service Manual

Offers an internal resolution of 1/150,000 and a display resolution of up to 1/15,000. Connectivity: Digi Di-166 Service Manual

The Di-166 has a few notorious quirks:

The version I found is a clean, 300dpi scan of the original spiral-bound book. It includes: Digi Di-166 Service Manual