"The Model 6900 Digital Multimeter is a six-decade instrument with a seventh digit providing 60% overrange. The basic instrument is equipped for DC and DC/DC ratio measurements on five ranges. With the addition of the optional AC converter, AC and AC/DC ratio measurements on four ranges are available. The Ohms Converter, also optional, adds ohms measurements on seven ranges." (Dana, Manual 6900, 1975)
BRIEF SPECS
| Input Range | ±0.1 volts to ±1,000 volts |
| Digits | 6 plus 60% overrange |
| DCV Accuracy | ±(12 + 6 f.s.)ppm |
| Power | 40 watts |
| Dimensions | 3.5" x 14" x 16.75" |
| Weight | 16 lbs |
| Technology | transistor, ic |
| Price | unknown |
The 6900 is one of the last Dana's before they were taken over by Racal in 1979 (then Racal-Dana). In 1981 Racal ceased production of all multimeters. It's still as useful as modern DVM's. For the fascinating story of the Digital Voltmeter please refer to an excellent article published by George Rostky.
