bap8guy | Dana 5900 U2 5 3/4 Digit Voltmeter @bap8guy | Uploaded March 2021 | Updated October 2024, 14 hours ago.
This Dana 5900, from the latter 1970's is a 5 3/4 digit, upgrade-able DVM, in beautiful working condition.
The 5 3/4 digits refers the the maximum reading on any range. What they mean is there will be 6 digits maximum as long as the 1st 2 significant digits do not exceed the digits 16. So, on the .1v scale, you can read .000000v to .160000v. On the 1v scale you can read 0.00000v to 1.60000v, 00.0000v to 16.0000v on the 10v scale, 000.000v to 160.000v on the 100v scale and 0000.00 to 1000.00v on the 1000v scale (1000 is the maximum input).
There are 5 DC ranges available .1v, 1v,10v,100v and 1000v. The ranges are manually selectable, or the unit can be placed in Auto, for automatic range selection. Polarity is indicated on the unit. There is a rate control (lower left of the front panel) that determines the cycle time for update, and as such it can be a "hold" control for readings. The base unit has an analog output available on the rear of the instrument, that uses 0-20v to represent the input measurement. A J201 connector on the rear allows for optional printer use, or for BCD output.
This is an attractive unit, with big (.4 in) red easy-to-read digits. it has a nice wire stand for angled viewing. The red lens is scratch free. The controls work freely.
In this video, I introduce the unit, then compare the bottom and uppermost range voltage readings to that obtained on a recently calibrated HP34401 6.5 digit DMM. The results are excellent!
This unit will be sold with a Dana 5900 Operation / Service manual on CD.
This Dana 5900, from the latter 1970's is a 5 3/4 digit, upgrade-able DVM, in beautiful working condition.
The 5 3/4 digits refers the the maximum reading on any range. What they mean is there will be 6 digits maximum as long as the 1st 2 significant digits do not exceed the digits 16. So, on the .1v scale, you can read .000000v to .160000v. On the 1v scale you can read 0.00000v to 1.60000v, 00.0000v to 16.0000v on the 10v scale, 000.000v to 160.000v on the 100v scale and 0000.00 to 1000.00v on the 1000v scale (1000 is the maximum input).
There are 5 DC ranges available .1v, 1v,10v,100v and 1000v. The ranges are manually selectable, or the unit can be placed in Auto, for automatic range selection. Polarity is indicated on the unit. There is a rate control (lower left of the front panel) that determines the cycle time for update, and as such it can be a "hold" control for readings. The base unit has an analog output available on the rear of the instrument, that uses 0-20v to represent the input measurement. A J201 connector on the rear allows for optional printer use, or for BCD output.
This is an attractive unit, with big (.4 in) red easy-to-read digits. it has a nice wire stand for angled viewing. The red lens is scratch free. The controls work freely.
In this video, I introduce the unit, then compare the bottom and uppermost range voltage readings to that obtained on a recently calibrated HP34401 6.5 digit DMM. The results are excellent!
This unit will be sold with a Dana 5900 Operation / Service manual on CD.
